AUSTRALIAN BUREAU OF METEOROLOGY – EVIDENCE OF REVISION OF SOLAR EXPOSURE DATA FOR 2013

Bruiser Murray writes:

Several times I have commented that the BOM has falsified Solar Exposure data for 2013.  Recently “Griff” challenged me to substantiate the claim.  I have not had access to my old computer where some of the files were stored so, until recently, could not provide the evidence.  That changed last week and the attached file provides the basis if my assertion.


1. On several occasions, information has been provided to your blog that the Australian Bureau of Meteorology (BOM) has comprehensively revised solar exposure data recorded in 2013. This was done so that the revised data would support the BOM assertion that 2013 was the hottest year on record due to anthropogenic drivers.

Background

2. In Jan 2014, the alarmist web site “Sceptical Science” ran an article: AUSTRALIAS HOTTEST YEAR – HUMANS CAUSED IT. The complete article and comments can be viewed here:

https://www.skepticalscience.com/australias-hottest-year-humans-caused-it.html

Selected excerpts are included below. After reading the article, I (Bruiser) posted the following comments:

bruiser at 20:16 PM on 20 January, 2014

2013 is a poor example to choose as the poster child for AGW.  In fact, quite the opposite. Taking Sydney as an example, new records for solar radiation were set for May, July, August, September, October and December.  The average monthly maximum temperatures track the solar radiation trends. The really hot days seem to correlate closest to low humidity; suggesting that the absence of H2O allows transmission of more solar radiation.   All three climate systems, IOD, ENSO and SAM favour dryer conditions across Australia.

The comment resulted in several individuals responding, with one posting the BOM solar exposure chart for 2013.

barry at 21:37 PM on 20 January, 2014

bruiser @ 13,

Eyeballing the BOM average and anomaly maps, the amount of solar exposure for NSW over 2013 was about average.

1990 – 2011 average

2013 average

Are you able to furnish data links to corroborate what you’re saying?

Lower humidity should in general equal cooler minimums in the dark hours. You might want to check 2013 minimum temps to get more insight. If minima were still anomalously high in low humidity periods, then that’s going to put a hole in your theory.

 

bruiser at 19:18 PM on 21 January, 2014

@Barry – Hi Barry, Your map of NSW solar radiation in 2013 would appear to be within the “normal” range however the map itself is something of an anomaly if compared to almost any weather station across Australia.  Take the capitals, Alice Springs and fill in the blank spaces at your leisure.  They mostly show 6 months of record exposure. 2-4 months above average and 2-4 slightly below average.  On balance, they are well above average on an annual basis.

 

barry at 12:48 PM on 22 January, 2014

Composer, I posted links to BOM solar exposure maps @ 14. The authors of the article state,

…we calculated the probability of hot Australian temperatures in model experiments. These incorporated human (changes in greenhouse gases, aerosols and ozone) and natural (solar radiation changes and volcanic) factors. We compared these probabilities to those calculated for a parallel set of experiments that include only natural factors. In this way, natural and human climate influences can be separated.

If Bruiser has lit upon observations that call that study (and BOM results) into question, then Australia-wide data would be an improvement on unverified claims about two locations. I hope he/she obliges us, because I don’t know where he/she is getting the data from.

Reference please, Bruiser?

 

bruiser at 08:08 AM on 23 January, 2014

@Barry – Hi Barry, 4th try.  The BOM solar radiation data can be accessed at:

http://www.bom.gov.au/climate/data/ Just select solar exposure from the drop-down, enter a town and follow the bouncing ball.  When the data comes up you can select “Plot statistics for this year”.  Have fun.

 

bruiser at 08:21 AM on 23 January, 2014

@Skywatcher – The data is very similar for any town.  The particularly hot days coincide with low humidity.  No surprise there; it was a very dry year.  You can plot humidity against max, min, temp difference, cloud cover and solar exposure.  My point remains, solar radiation was at record or above average levels for most of 2013.  Particularly hot days had low humidity. Whilst a new national average record was set, no new absolute maximum temperature record was set.  That record is 50.7 degrees C at Oodnadatta airport 2 Jan 19

 

barry at 00:24 AM on 25 January, 2014

Bruiser, thanks for the link.

I can confirm that all the capitals and about 20 other stations I checked all had record-breaking solar exposure. I think it’s safe to assume I didn’t just chance upon the outliers. So, I checked the colour maps against the values and they are a good fit. The problem, I realize, is that the resolution of the colour maps is too coarse. The difference between average and record-breakers is 1-2 Mj/sq/m, but the colour maps are in increments of 2 Mj/sq/m (annual), and 3 Mj/sq/m (long-term average). So, I withdraw the earlier comparison. I could find no national average data, so can’t crunch the numbers.

bruiser at 21:03 PM on 25 January, 2014

Hi Barry, my check of values against the map found only one where the actual record was within the correct colour band; some were over 2MJ above the displayed range.  2Mj/sq M/day is an enormous amount of additional energy if you accept the calculation that just 0.4 W/sq M is sufficient to cause the decline in arctic ice. (energy required to melt 290 cubic Km of ice).

Diurnal variation has interested me for a few years.  For example, if you plot the data for Melbourne, you get a steady decline. However, the Melbourne weather station is situated at a busy city intersection.  I plotted the data for Laverton on the same graph and there is a great correlation until about 1964 when there is a steady roll-off in the Melbourne values.  No such decline occurs for Laverton – suggesting that the Melbourne site was affected by some form of development.

 

barry at 00:06 AM on 26 January, 2014

Bruiser, I rechecked the 2013 solar exposure map against annual values for various locations again and you are quite right. The colour bands do not match the local values. I will email BOM about it.

2Mj/sq M/day is an enormous amount of additional energy if you accept the calculation that just 0.4 W/sq M is sufficient to cause the decline in arctic ice. (energy required to melt 290 cubic Km of ice).

How then would you explain that 4 out of 7 states had warmest years when before 2013, when solar exposure was not highest (in the capitals)?

Following are the warmest years by state, and solar exposure data value (Mj/sq M/day) for that year, ranked from highest, per single locational in the capitals, then record solar exposure (2013) in bold. Period is 1990 – 2013 incl. which is all the solar exposure data we have.

barry at 00:06 AM on 26 January, 2014

Bruiser, I rechecked the 2013 solar exposure map against annual values for various locations again and you are quite right. The colour bands do not match the local values. I will email BOM about it.


SUPPORTING EVIDENCE

3. I have been tracking solar exposure data on the BOM web site throughout 2013. It appears from about August onwards that the BOM was tracking for record levels across the country. The records only go back to 1990 (not a large sample). Table 1. displays the monthly totals for 2013 and the mean for all capital cities, Alice Springs, Derby and Cairns.

Location/Mean Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 2013/Mean
Sydney 2013 21.3 19.4 17.3 15.3 12.3 8.1 12 16.6 21.5 27.3 23.9 30.5 18.8
Mean 23 20.1 17.3 13.8 10.2 8.5 9.7 13.4 17.2 20.3 22.1 23.8 16.6
Melbourne 2013 25.7 22.4 16.5 12.3 8.4 7.1 8.2 11.2 17 20.2 23.5 27.5 16.7
Mean 24.6 21.4 16.8 11.4 7.6 6.1 6.9 9.9 13.5 18.2 22.1 24.6 15.3
Adelaide 2013 27.6 23.7 17.4 15.6 10.9 8.7 9.7 13.1 18.9 26.1 30.4 31 19.4
Mean 27.7 24.4 19.5 13.7 9.4 7.5 8.4 11.6 15.6 20.9 25.3 27.1 17.6
Hobart 2013 22.5 20.8 14.1 10.1 7.2 4.7 5.9 9.9 15.2 21.1 21 27.7 15.0
Mean 23.6 19.9 14.8 9.4 6.2 4.6 5.4 8.4 12.9 17.6 21.5 24.3 14.1
Perth 2013 27.9 25.3 19.8 15.3 12.9 11.7 11.9 14.7 19.3 28.3 31.7 35.2 21.2
Mean 29.4 25.9 21.1 15.3 11.3 9.3 10 13.1 17.2 23.1 27.2 30.4 19.4
Darwin 2013 19.9 21.3 19.1 25.6 22.4 21.7 23.8 27.2 29.4 29.2 24.1 20.9 23.7
Mean 19 19.2 21.1 22.1 20.6 19.8 20.7 22.9 24 24.3 23.2 20.9 21.5
Brisbane 21.8 17.9 16.6 18.4 14.1 11.9 12.9 20.7 23.6 28 27.8 29.9 20.3
Mean 23.7 21 19.1 16.4 13.3 11.7 13 16.2 19.8 22 24 24.7 18.7
Canberra 26.4 19.6 19.2 15.5 11.5 8.5 9.6 14.9 20.3 27.2 27.8 31.7 19.4
Mean 25.9 22.2 18.9 14 10.2 7.9 8.9 12.4 16.8 21.3 24.4 26.7 17.5
Alice Springs 28.1 23.6 22.4 23 17.4 14.6 18.4 23.4 27.3 31.1 29.4 28 23.9
Mean 27.1 25.1 23.7 20.4 16.4 14.7 15.9 19.1 22.5 25.4 27 27.2 22.0
Cairns 20.6 21.4 17.7 20 16 17.1 17 23.7 27.3 27.6 23.6 27.3 21.6
Mean 21.7 20 19.4 18.2 16.2 15.3 16.1 19 22.5 24 23.9 23.4 20.0
Derby 24.1 20.9 23.1 22.7 19.9 17.4 20.5 24.5 29.9 31 31.3 26.2 24.3
Mean 23.3 22.6 22.9 21.8 18.9 17.3 18.6 21.6 24.7 26.8 27.4 25.3 22.6

Table 1. Solar exposure MJ/M2/Day

4. The BOM chart graphs for Sydney provide evidence of the BOM revisions. The first graph was downloaded in Jan 14 whilst the second is the same graph downloaded in May 14:

image

Product Code: IDCJAC0016

Jan 2014

image

Product Code: IDCJAC0016

Page created: Thu 08 May 2014 14:01:04 PM EST

5. The difference in the two charts provides insight into the revisions. The first chart clearly shows record levels of solar exposure for May, July, August, September, October and December. The second chart does not have any record months. The extent and degree of the data revisions in the Sydney chart, the data for all the cities is displayed in Table 1. Table 2 has been conditionally formatted to show where the BOM has increased the levels of solar exposure (coded pink) and decreased solar exposure (coded blue). The conditional formatting clearly highlights that solar exposure data was increased slightly for January, February and March and decreased dramatically for the rest of the year.

Table 2:

Location/Mean Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 2013/Mean
Sydney 2013 21.3 19.4 17.3 15.3 12.3 8.1 12 16.6 21.5 27.3 23.9 30.5 18.8
Mean 23 20.1 17.3 13.8 10.2 8.5 9.7 13.4 17.2 20.3 22.1 23.8 16.6
1-May-14 21.8 20.1 17.9 13.7 10.8 6.9 10.3 14.1 17.1 22 18.7 25.3 16.6
Variation 0.5 0.7 0.6 -1.6 -1.5 -1.2 -1.7 -2.5 -4.4 -5.3 -5.2 -5.2 -2.2
Variation % 2 4 3 -10 -12 -15 -14 -15 -20 -19 -22 -17
Melbourne 2013 25.7 22.4 16.5 12.3 8.4 7.1 8.2 11.2 17 20.2 23.5 27.5 16.7
Mean 24.6 21.4 16.8 11.4 7.6 6.1 6.9 9.9 13.5 18.2 22.1 24.6 15.3
1-May-14 26.9 23.6 17 11 7.5 6.1 7 9.1 13.1 15.3 18.3 22.5 14.8
Variation 1.2 1.2 0.5 -1.3 -0.9 -1 -1.2 -2.1 -3.9 -4.9 -5.2 -5 -1.9
Variation % 5 5 3 -11 -11 -14 -15 -19 -23 -24 -22 -18
Adelaide 2013 27.6 23.7 17.4 15.6 10.9 8.7 9.7 13.1 18.9 26.1 30.4 31 19.4
Mean 27.7 24.4 19.5 13.7 9.4 7.5 8.4 11.6 15.6 20.9 25.3 27.1 17.6
1-May-14 29.1 25.1 18 14 9.7 7.4 8.3 10.9 14.8 20.9 25 25.9 17.4
Variation 1.5 1.4 0.6 -1.6 -1.2 -1.3 -1.4 -2.2 -4.1 -5.2 -5.4 -5.1 -2.0
Variation % 5 6 3 -10 -11 -15 -14 -17 -22 -20 -18 -16
Hobart 2013 22.5 20.8 14.1 10.1 7.2 4.7 5.9 9.9 15.2 21.1 21 27.7 15.0
Mean 23.6 19.9 14.8 9.4 6.2 4.6 5.4 8.4 12.9 17.6 21.5 24.3 14.1
1-May-14 23.1 21.8 14.2 8.9 6.3 4 5 8.1 11.4 16.1 15.9 22.4 13.1
Variation 0.6 1 0.1 -1.2 -0.9 -0.7 -0.9 -1.8 -3.8 -5 -5.1 -5.3 -1.9
Variation % 3 5 1 -12 -13 -15 -15 -18 -25 -24 -24 -19
Perth 2013 27.9 25.3 19.8 15.3 12.9 11.7 11.9 14.7 19.3 28.3 31.7 35.2 21.2
Mean 29.4 25.9 21.1 15.3 11.3 9.3 10 13.1 17.2 23.1 27.2 30.4 19.4
1-May-14 29.4 26.9 20.8 13.7 11.5 10.2 10.1 12.4 15 22.9 26.2 30 19.1
Variation 1.5 1.6 1 -1.6 -1.4 -1.5 -1.8 -2.3 -4.3 -5.4 -5.5 -5.2 -2.1
Variation % 5 6 5 -10 -11 -13 -15 -16 -22 -19 -17 -15
Darwin 2013 19.9 21.3 19.1 25.6 22.4 21.7 23.8 27.2 29.4 29.2 24.1 20.9 23.7
Mean 19 19.2 21.1 22.1 20.6 19.8 20.7 22.9 24 24.3 23.2 20.9 21.5
1-May-14 19.9 22.2 19.9 23.1 20 19.1 20.6 23.6 24.4 23.8 18.8 15.8 20.9
Variation 0 0.9 0.8 -2.5 -2.4 -2.6 -3.2 -3.6 -5 -5.4 -5.3 -5.1 -2.8
Variation % 0 4 4 -10 -11 -12 -13 -13 -17 -18 -22 -24
Brisbane 21.8 17.9 16.6 18.4 14.1 11.9 12.9 20.7 23.6 28 27.8 29.9 20.3
Mean 23.7 21 19.1 16.4 13.3 11.7 13 16.2 19.8 22 24 24.7 18.7
1-May-14 22.4 18.4 17 16.6 12.5 10.3 11.1 17.8 19.1 22.7 22.4 24.7 17.9
Variation 0.6 0.5 0.4 -1.8 -1.6 -1.6 -1.8 -2.9 -4.5 -5.3 -5.4 -5.2 -2.4
Variation % 3 3 2 -10 -11 -13 -14 -14 -19 -19 -19 -17
Canberra 26.4 19.6 19.2 15.5 11.5 8.5 9.6 14.9 20.3 27.2 27.8 31.7 19.4
Mean 25.9 22.2 18.9 14 10.2 7.9 8.9 12.4 16.8 21.3 24.4 26.7 17.5
1-May-14 27.5 20.4 20.1 14 10.2 7.3 8.2 12 15.9 21.7 22.2 26.4 17.2
Variation 1.1 0.8 0.9 -1.5 -1.3 -1.2 -1.4 -2.9 -4.4 -5.5 -5.6 -5.3 -2.2
Variation % 4 4 5 -10 -11 -14 -15 -19 -22 -20 -20 -17
Alice Springs 28.1 23.6 22.4 23 17.4 14.6 18.4 23.4 27.3 31.1 29.4 28 23.9
Mean 27.1 25.1 23.7 20.4 16.4 14.7 15.9 19.1 22.5 25.4 27 27.2 22.0
1-May-14 29.8 25.1 23.5 20.7 15.2 12.3 15.8 20 22.3 25.3 23.7 22.6 21.4
Variation 1.7 1.5 1.1 -2.3 -2.2 -2.3 -2.6 -3.4 -5 -5.8 -5.7 -5.4 -2.5
Variation % 6 6 5 -10 -13 -16 -14 -15 -18 -19 -19 -19
Cairns 20.6 21.4 17.7 20 16 17.1 17 23.7 27.3 27.6 23.6 27.3 21.6
Mean 21.7 20 19.4 18.2 16.2 15.3 16.1 19 22.5 24 23.9 23.4 20.0
1-May-14 20.7 22.4 18.3 18 14.2 15 14.6 20.5 22.5 22.3 18.1 22.1 19.1
Variation 0.1 1 0.6 -2 -1.8 -2.1 -2.4 -3.2 -4.8 -5.3 -5.5 -5.2 -2.6
Variation % 0 5 3 -10 -11 -12 -14 -14 -18 -19 -23 -19
Derby 24.1 20.9 23.1 22.7 19.9 17.4 20.5 24.5 29.9 31 31.3 26.2 24.3
Mean 23.3 22.6 22.9 21.8 18.9 17.3 18.6 21.6 24.7 26.8 27.4 25.3 22.6
1-May-14 25 21.8 24.5 20.5 17.7 15.1 17.7 21.1 24.8 25.5 25.8 21 21.7
Variation 0.9 0.9 1.4 -2.2 -2.2 -2.3 -2.8 -3.4 -5.1 -5.5 -5.5 -5.2 -2.6
Variation % 4 4 6 -10 -11 -13 -14 -14 -17 -18 -18 -20

6. In addition, a comparison of the Sydney complete data set indicates that the revision of data by the BOM extends back to 1 July 2011. Clearly, the BOM altered the data some time between Jan 14 when Barry undertook to e-mail them about the discrepancy and May 2014 when I revisited the issue.

7. For your considered response.

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Andrew Hamilton
March 10, 2017 12:15 pm

Caught in the act.

wws
Reply to  Andrew Hamilton
March 11, 2017 6:03 am

Honest Data to a warmist is like Kryptonite to Superman.

TDBraun
March 10, 2017 12:17 pm

So what explanation has been given for the change?

March 10, 2017 12:20 pm

sons of bitches!

Eustace Cranch
March 10, 2017 12:21 pm

So being an annoying, intellectually empty pest gets the “G” rewarded with its name in a top-level post. Now you’ve done it.

Bryan J.
Reply to  Eustace Cranch
March 10, 2017 12:38 pm

The b*st*rds always win… until they don’t.

Keep pushing, keep exposing, keep up the good work, Bruiser.

Reply to  Eustace Cranch
March 10, 2017 2:11 pm

EC, he got kicked around pretty good on the previous post. I did some of the kicking. Good for amusement.

Janice Moore
March 10, 2017 12:23 pm

only one where the actual record was within the correct colour band

Incredible. But, proven by your fine research.

Thank you, “Bruiser.”

Janice Moore
Reply to  Janice Moore
March 10, 2017 12:26 pm
Reply to  Janice Moore
March 12, 2017 1:31 am

Great work BM.

Keep it up!

troe
March 10, 2017 12:25 pm

Interesting work. Thanks for sharing. Would be interested to know how/if this line of inquiry continues.

OweninGA
March 10, 2017 12:28 pm

Obviously it must be due to a convenient TOBS adjustment…/sarc

Standard process in climate sciences seems to be to adjust inconvenient data when it controverts the narrative.

Editor
Reply to  OweninGA
March 10, 2017 4:40 pm

(Sigh.) TOBS is real. Just is.

But I’d be interested to know how this was done. Pairwise homogenization, perhaps? (What could possibly go wrong?)

talldave2
Reply to  Evan Jones
March 11, 2017 2:40 am

Sure, but so is UHI.

Rob
March 10, 2017 12:28 pm

It is hard to think of any kind of instrument calibration revision which would increase radiation in some months and reduce it in the others so this does look very suspicious. Can anyone provide any information on the instrumentation used for these measurements?

Reply to  Rob
March 10, 2017 12:54 pm

These are simple standard radiometers. There are several manufacturers. Kipp and Zonen in Germany is the one illustrated in the climate chapter of The Arts of Truth.

Reply to  Rob
March 10, 2017 1:18 pm

Computing global solar radiation is not simple. BoM gives an account here (more here). They have to measure separately and combine direct and diffuse. Calibration isn’t simple either. The document describes a recent change from the “Component Sum method” to the “Alternate method”.

The comparison here is between estimates for 2013 data produced prior to Jan 14, 2014, and those some time later. I think a revision of that early estimate is not surprising.

John in Oz
Reply to  Nick Stokes
March 10, 2017 1:54 pm

That explanation sounds a lot like ‘Mikes’s nature trick’

Owen in GA
Reply to  Nick Stokes
March 10, 2017 2:10 pm

The question then becomes: were the years that this was compared against reprocessed in the same manner? If not, then the whole kit and kiboodle needs to be tossed in the nearest bin. Apples compare to oranges only when speaking of fruit.

When techniques continuously change in midstream, there are going to be questions. Of course they really should have left these as the direct measure and just compared what was read out from the instrument. That way you are always comparing apples to apples and not apples to xylophones. The diffuse environment only changes if there is a change to the surroundings, otherwise the same surfaces will scatter energy in the same manner every day. It is almost irrelevant for trend analysis, and as climate analysis almost exclusively deals with the divergence from the baseline, we are only interested in the trends.

Reply to  Nick Stokes
March 10, 2017 2:13 pm

NS, whether true or not that is not this post. Thismis insolation measured at specific weather stations in Australia. Nothing to do with global. Nice straw man diversion.

Editor
Reply to  Nick Stokes
March 10, 2017 2:23 pm

Nonsense. Calculating daily solar insolation values for ANY latitude (not just Australia) and ANY day-of-year is simple, provided accurate calibration data for the specific region in question (the measured atmospheric attenuation values) are available for the season (day) in question for the specific region analyzed. Same latitude, different dust, pollen, cloud cover, direct/diffuse ratio, pressure, humidity, wind direction? Need a different calibration data series.

But that source page itself claims bad accuracy and no calibration since 2003. Further,

Satellite problems occasionally mean that the solar radiation data are not available. During an outage the grid files are generated and provided but missing data are flagged with the special value of -99.99.

Data are unavailable for 12/11/2009 and from 16/11/2009 onwards, owing to problems with the MTSAT-1R satellite.”

Michael Jankowski
Reply to  Nick Stokes
March 10, 2017 3:32 pm

“…Computing global solar radiation is not simple. BoM gives an account here (more here)…”

I’ll say. The second ‘here’ states that satellite data ‘are unavailable for 12/11/2009 and from 16/11/2009 onwards, owing to problems with the MTSAT-1R satellite…’

“…I think a revision of that early estimate is not surprising…”

Are you missing the point entirely or knowingly diverting away from it?

Reply to  Nick Stokes
March 10, 2017 3:34 pm

ristvan
“Nothing to do with global.”
Read the heading on the graph he provided. “Sydney global solar exposure”. It means all-round.

Owen in GA
“The question then becomes: were the years that this was compared against reprocessed in the same manner?”

The graph shows that not only did the 2013 value change, but the long term normal. So I think the answer is yes.

Reply to  Nick Stokes
March 10, 2017 3:51 pm

“Are you missing the point entirely”
I may be. All I see is a whole lot of people getting excited about the BoM revising some figures that they have never looked at before, and seem rather unsure about what they mean. And concluding that this is all some sort of cheat to boost the global warming narrative (How?). What am I missing?.

Schitzree
Reply to  Nick Stokes
March 10, 2017 3:58 pm

I think a revision of that early estimate is not surprising.

I have to agree with Nick on this one.

I wasn’t surprised in the least to hear the Climate Faithful had adjusted away more inconvenient data. ~_~

Editor
Reply to  Nick Stokes
March 10, 2017 4:33 pm

There is no indication at the links given which claims that past values have been reworked. Alternate Calibration has nothing whatever to do with changing past values, only on the current calibration of instruments.

Reply to  Nick Stokes
March 10, 2017 4:42 pm

Kip,
“on the current calibration of instruments”
No, if you recalibrate the instruments, and they are the same ones that were used in the past, then the past readings should be corrected to the new calibration.

Schitzree,
“Climate Faithful had adjusted away more inconvenient data”
I have yet to see anyone explain why they would find it inconvenient. Or indeed why the CF, or anyone else, would have noticed it.

Reply to  Nick Stokes
March 10, 2017 4:55 pm

“I have yet to see anyone explain why they would find it inconvenient.”

Because many billions of dollars in research grants to “prove” a trace gas that is entirely beneficient is actually going to destroy ‘Civilisation As We Know It’ or possibly even the entire planet are dependent on it, and the debunking of it would cause a lot of charlatans, parasites and trough-snouters who would be otherwise unemployable to have to try to get real jobs?

Pat Frank
Reply to  Nick Stokes
March 10, 2017 5:13 pm

Nick Stokes, “No, if you recalibrate the instruments, and they are the same ones that were used in the past, then the past readings should be corrected to the new calibration.

No, the past readings should not be “corrected.” The instruments were calibrated in the past, which calibrations were applied to those past readings.

Calibrations change with time, and the new corrections should be applied only to those measurements taken subsequent the calibration. One never, ever, applies present calibrations to past measurements already corrected using past calibrations. Never. Ever.

One lives with whatever measurement disparities emerge, and with the uncertainty associated with them. Except in Nickstrokesland, where all instruments have infinite resolution.

lee
Reply to  Nick Stokes
March 10, 2017 6:55 pm

NS, “No, if you recalibrate the instruments, and they are the same ones that were used in the past, then the past readings should be corrected to the new calibration.”

So how do you tell when the instrument dropped out of calibration? You need to know how far back to apply “corrections”. Was it an abrupt change or a more subtle one over time?

Bruiser
Reply to  Nick Stokes
March 10, 2017 8:18 pm

G’ Day Nick, suggested that you look at the Table 2 adjustments. If you can provide a rationale explanation of how January, February and March are increased while the rest of the year is decreed by a much greater factor.; then I will go back to thinking that the BOM is a respectable scientific organization.

Reply to  Nick Stokes
March 10, 2017 8:45 pm

Bruiser,
“If you can provide a rationale explanation of how January, February and March are increased while the rest of the year is decreed by a much greater factor”
It seems to be a systematic seasonal variation throughout. I have no basis for second-guessing the reason, and neiher do you. But I see no reason for surprise at seasonal variation.

But it seems that the answer may be at that link I cited. They say:
“For the initial calibration at the Bureau of Meteorology the ‘Component Sum Method’ is used. The ‘Alternate Method’ has recently been adopted as the primary calibration method for the Baseline Surface Radiation Network, and Dr. Forgan recently received the 12th WMO Vaisala Award for his paper outlining the method. Both methods rely on measurements of global and diffuse irradiance by pyranometers and direct irradiance by pyrheliometers.”

So it seems that they do use the different methods in sequence. And they say:
“Each year the Bureau’s Radiation Unit staff visit field sites to calibrate the on-site pyrheliometer and to swap (alternate) the global and diffuse pyranometers. In this way, between visits the pyranometer being used to measure global irradiance is being calibrated every clear sky day, prior to it being swapped for use as a diffuse pyranometer.”

It sounds like they need to collect that data in order to apply their final calibration, using the alternate method. It looks to me as if that annual tour led to the difference, and the May figures are from the BSR Network.

Mat
Reply to  Nick Stokes
March 11, 2017 12:45 am

A lot of people here arguing because calibration has changed, this is data ‘manipulation’. I wonder if they feel the same about Roy Spencer’s UAH V6.0. That data set has needed to be calibrated at least 6 times. Re-calibration, even the dreaded homogenization, can make data more accurate than previous data, so shouldn’t be dismissed out of hand.

lee
Reply to  Nick Stokes
March 11, 2017 1:09 am

Mat, UAH has detailed reasons for re-calibration. Compare that to Nick’s “It sounds like they need to collect that data in order to apply their final calibration”.

Does that sound like they have provided detailed reasons?

Paul Penrose
Reply to  Nick Stokes
March 12, 2017 10:44 am

As far as I can see, when all is said and done, the error bars on these solar radiation figures is so large as to make them almost useless for the types of detailed analysis they are being used for. Too much “educated guessing” and post measurement calibration going on for me to think otherwise.

JaneHM
March 10, 2017 12:36 pm

BTW I’d like to know how legit the sudden increase in temperature in mid-afternoon for Brisbane on November 16 2014 was. By ‘coincidence’ the G20 meeting (accompanied by an Obama speech on climate) was held in Brisbane that day and a record high temperature was predicted. Got nowhere near the predicted temperature until a magical hot wind suddenly arrived in mid-afternoon (such winds are not unprecedented in Brisbane but was it more than coincidence).

Owen in GA
Reply to  JaneHM
March 10, 2017 2:11 pm

You explained it in the first bit: Obama gave a speech – that is always good for a burst of hot air.

Janice Moore
March 10, 2017 12:39 pm

Blatantly unethical (under Australian law, criminal?).

So say all bona fide scientists.

A typical example (from transcript of video lecture here: https://prezi.com/u1cgkqxrzmar/ethics-in-forensic-science/ ):

…. science reaches tentative conclusions, subject to change with further evidence.

Ethics in Forensic Science

By Rediet Teshome

FSCS 400
Definition
Professional issues in Forensic science, pg 173-178
Recommendation 9

The {NIFS} National Institute of Forensic Science { }, in consultation with its advisory board, should establish a national code of ethics for all Forensic Science disciplines and encourage individual societies to incorporate this national code as part of their professional code of ethics.

Additionally, NIFS should explore mechanisms of enforcement for those forensic scientists who commit serious ethical violations. Such a code could be enforced through a certification process for forensic scientists.

— Northeaster association of forensic science
— American academy of forensic science
— ASCLD/LAB guiding principles
— ASCLD code of ethics
— International association for Identification (IAI) code of ethics

Common Ethical standards
— Accurate representation of qualifications
— Maintain the integrity of the evidence
True and accurate representation of data ….

Reply to  Janice Moore
March 10, 2017 1:06 pm

Thank you, Janice.

Suggestion: next time also boldface the line Maintain the integrity of the evidence. That’s critically important, as Phil Jones tacitly admitted when he indicated he might destroy data rather than provide it: “I think I’ll delete the file rather than send to anyone.”

Janice Moore
Reply to  Ralph Dave Westfall
March 10, 2017 1:10 pm

Cheers

Phil

(well, I had to choose one or the other (to suit my style preference) — GOOD POINT, though, Ralph).

Resourceguy
March 10, 2017 12:44 pm

It must have been a power grid failure.

Alan Ranger
March 10, 2017 12:48 pm

Nicely done. The only criticism is the acknowledgment of “Griff”. To contaminate such a high calibre piece of work with a reference to such a low IQ is a shame. Perhaps a footnote reference in 4pt font would have been more appropriate.

Janice Moore
Reply to  Alan Ranger
March 10, 2017 1:03 pm

Agreed, Mr. Ranger.

4pt and accompanied by a picture of the little troll:
http://static.giantbomb.com/uploads/original/0/1992/1866603-griff_card_1.gif

Age: 14. What a surprise.

Janice Moore
Reply to  Janice Moore
March 10, 2017 1:08 pm

I must say, though, that last line softened my perspective. Top billing — NO, but, well, shoot. Griff — you’re welcome to hang out here (if I may be so bold as to speak on behalf of the WUWTers), “where everybody knows your name.”

MarkW
Reply to  Janice Moore
March 10, 2017 2:56 pm

I thought Griff has claimed to be British.

Janice Moore
Reply to  Janice Moore
March 10, 2017 5:12 pm

lol, yes, Mark, I believe he has. He also said he has a wife. 🙂

Michael Jankowski
Reply to  Alan Ranger
March 10, 2017 3:34 pm

He may have claimed to be British, but with his level of accuracy, it’s a stretch to assume there’s much change he’s correct.

schitzree
Reply to  Michael Jankowski
March 10, 2017 4:18 pm

Of British descent maybe? that’s pretty broad. or maybe he meant He’s English SPEAKING.

Dean
Reply to  Michael Jankowski
March 10, 2017 11:37 pm

Griff thinks he speaks American…..

Paul Penrose
Reply to  Alan Ranger
March 12, 2017 10:49 am

I really don’t like it when regulars here insult Griff like this. First, he probably likes it. Second, he does a fine job illustrating his intelligence level all by himself. And third, it only diminishes the insult thrower. My advice: don’t wrestle with pigs.

March 10, 2017 12:50 pm

Looks like you caught them out. Essay When Data Isn’t in ebook Blowing Smoke caught NOAA out in their CONUS state by state reporting in the switch from Drd964x to nClimDiv at the beginning of 2014. See my guest post here in the David Rose series. Site search Istvan NClimDiv takes you there straightway.

hunter
March 10, 2017 12:58 pm

It is important to fight to preserve the record. Thank you for documenting this institutional vandalism so well.
This has also happened with other areas of Australian meteorological history.
Jennifer Marohasy has documented uncalled for adjustments of the temperature records in Australia multiple times.
http://jennifermarohasy.com/

Reply to  hunter
March 10, 2017 1:09 pm

Yes. Rutherglen was shocking. And then BOM lied about station moves as an excuse. And then retired Rutherglen researcher Dr. Bill johnson confirmed that there had been no such events. Another example in essay When Data Isn’t.

Reply to  hunter
March 10, 2017 1:36 pm

I think I can explain ACORN-SAT errors as methodological flaws, but still a work in progress:

https://climanrecon.wordpress.com/2017/03/02/climate-distortion-in-acorn-sat/

Reply to  climanrecon
March 10, 2017 2:20 pm

My own research suggests you are on the right track. Any version of ‘regional expectations’ (BEST) aka pairwise homogenizarion (NOAA) contaminates godd stations with bad ones. The reason is very simple: as the US Surfacestations.org project showed conclusively, there are many more bad stations than good ones. Hope this logic helps. See also my guest post here on the US CRN 1 subset from surfacestaions.org. How good is Nasa GISS? In 2015. You are welcome to include it in your own work.

Reply to  climanrecon
March 11, 2017 12:28 am

Rud, I believe that there are two distinct problems with ACORN-SAT (probably applies to other homogenisations as well):

1. Stations with contrary trends being “bullied” by the neighbours into changes whenever a change in the weather occurs which triggers the interest of the step change detectors. This is particularly prevalent in Australia, where interior stations have very few interior neighbours, mostly ones near the coast, the latter imposing their trends on the interior ones via use of medians, which hands victory to the majority.
2. THIS IS A BIGGIE: All step changes in temperature are regarded as being persistent errors, which is clearly wrong for mid-century urban heating, and any screen degradation followed by replacement. Not a big deal back in the day when they only went back to 1950, but hopelessly inadequate when going back to 1910.

Hugs
Reply to  climanrecon
March 11, 2017 3:28 am

I have realized the same possibility, but I have no evidence for more positive saw teeth compared to negative. Otoh, I have no good reasons to believe the two types of sawteeth should cancel out. Good work, please read the literature before declaring victory.

Pop Piasa
March 10, 2017 1:02 pm

Solar exposure over the midwest US has been lackluster from observation where I live for a year or so now. I’m still waiting for a completely clear day in 2017.

There’ll need to be some adjustments.

Ed Zuiderwijk
March 10, 2017 1:09 pm

Data fiddlers aka quacks.

March 10, 2017 1:13 pm

Feynman said if the data doesn’t fit the the theory, the theory is wrong and must be changed.
In climate science if the data doesn’t fit the theory, the data is wrong and must be changed.
And then we have Mann and paleoclimate, where both the data and the theory are wrong.

Pop Piasa
Reply to  ristvan
March 10, 2017 2:20 pm

Hmm… 3 analytical systems, one of which is traditional scientific method and the other two are products of the modern progressive policy movement (flashback to Sesame Street; “One of these things is not like the others” song). Two are politically correct by past practice and one has been largely ignored.

Can anyone guess which one holds the key to enlightenment of future generations?

Steve
March 10, 2017 1:18 pm

Another case of Photoshopping data to present the picture the data keepers want to support. Nice job Bruiser.
I have seen into the minds of our world’s climate data keepers and it says this – “There is no such thing as data that doesn’t support your theory, there is only data that hasn’t been adjusted enough to support your theory”

commieBob
March 10, 2017 1:34 pm

Even if you catch them red handed they won’t admit they are wrong.

What caused the conditions that permitted more solar radiation to reach ground level? It must have been CO2. It’s obviously just another example of climate change.

Some of you guys are insufficiently cynical. Bah Humbug!

Janice Moore
March 10, 2017 1:42 pm

Which are you going to believe? The cunning contrivance you see? Or

the data?

(also for Richard, et al. to bring a little bon homme-restoring levity to some hot-under-the-collar scientists)

Yes. This is really funny.

(youtube — lip sync “men’s” gospel quartet 🙂 “Christmas Carol of Love” or something like that)

#(:))

Pop Piasa
Reply to  Janice Moore
March 10, 2017 2:28 pm

That stole the show- Gar-on-tee!

Janice Moore
Reply to  Pop Piasa
March 10, 2017 5:13 pm

🙂

AP
March 10, 2017 1:44 pm

Surely this is worthy of a grilling in a Senate Estimates hearing?

Reply to  AP
March 10, 2017 9:26 pm

I am appalled at the shocking revelations presented above. Rather than just Senate Estimates Committee, as an Australian I think we urgently need a Royal Commission into this matter
Rather than investigations into trivial matters such as institutionalized chìld abuse or into financial malfeasance by the banks, we must divert these resources into who was responsible for this scandal. The discovery of the BOM’s fabrication of this data, which is the lynchpin for global warming fraud, will destroy the hoax in its entirety.

Moderately Cross of East Anglia
March 10, 2017 2:16 pm

Surely Griff will have the good grace to say thank you for being shown the truth and apologise for being doubtful. While he’s at it he should apologize for his disgraceful belittling of Lombok, Anthony, and others earlier today on another WUWT thread. A very poor show I thought.

Reply to  Moderately Cross of East Anglia
March 10, 2017 5:01 pm

He reserves particular venom for Professor Judith Curry and Doctor Susan Crockford in particular, because his attempt to traduce her professsional credibility backfired on him in particularly spectacular fashion courtesy of Climate Otter. Seems along with being a paid propagandist for Big Wind posting from a corporate IP he’s a misognyst to boot.

Craig
Reply to  catweazle666
March 10, 2017 6:34 pm

Griffs one of the endless AGW barking hicks who never can tell me the name of the law of thermodynamics to determine the temperature of some air;

he can’t tell me the equation;

he can’t tell me what any of the factors mean;

he can’t explain which part he thinks has the ”magic gais powur”.

He’s like every AGW fraud who ever said it could have been real: a FAKE.

That’s why people spit on AGW frauds on sight to their face. We hate fake science.

The word is hate.

REAL scientists HATE fake science.

[You have 5 different user-id’s. Chose one. .mod]

wws
Reply to  catweazle666
March 11, 2017 6:09 am

I was about to say, he’s not gonna risk a paycheck just to make us happy and show “good grace”.

March 10, 2017 2:18 pm

Global Warmistas torture the data until it confesses just exactly what they want to hear. Temperature, Solar exposure, rainfall, ice extent, ice thickness, hurricanes, sea level, glacier movement, coral welfare, sinking island, endangered species and crop results, all are subject to the rule of the Warmista adjusters.

Keith J
Reply to  ntesdorf
March 10, 2017 4:34 pm

Blastedely complex models so it is nigh impossible to reproduce output? If only Pons and Fleishmann would have been so wise (sarc off).

Moderately Cross of East Anglia
March 10, 2017 2:21 pm

That should be Lomborg of course, wretched spell checker keeps changing spellings. My apologies.

TonyL
Reply to  Moderately Cross of East Anglia
March 10, 2017 3:33 pm

Sloppy, Sloppy, Sloppy.
To anybody who uses the hopelessly lame excuse of “my spellchecker made me do it”, I have one thing to say:
LUCK YOU!, … er… DUCK YOU! … er… or something.

schitzree
Reply to  TonyL
March 10, 2017 4:27 pm

Remember, Spell Check is your friend.

…the kind of friend who ‘borrows’ your car while drunk and leaves it in a ditch.

Robert from oz
March 10, 2017 3:28 pm

Senate committees are stacked in favour of greens and labor on such issues , last time BOM was caught with its hands in the cookie jar there was a 0.5 millisecond uproar .
BOM just threw statistics and their version of excuses which the entire political cabals accepted .

fretslider
March 10, 2017 3:38 pm

So what happened to Griff of the Grauniad?

clipe
Reply to  fretslider
March 10, 2017 4:35 pm

“Griff of the Grauniad”.

Bingo!

drednicolson
Reply to  fretslider
March 11, 2017 4:14 pm

Ducking head until the storm blows over, I warrant. The G-man will go back to the usual when the sky looks clear.

March 10, 2017 4:29 pm

Speaking of solar … has anyone noticed the sunspot numbers and F10.7 numbers for the last few weeks?
A disciplined decline has turned into a full-blown rout.

Lee Osburn
Reply to  joelobryan
March 10, 2017 5:56 pm

Yep,
It is going really calm now.

Has anyone noticed that the barometric pressures are also leveling out to their stable states..

The last coronal hole #66 has passed and the future shows none on the horizon. Maybe there is a story in here about the sun connection with our atmosphere..

Reply to  Lee Osburn
March 10, 2017 8:30 pm

I suspect we’re in for an eff’ing brutal hurricane season. TC’s love a stable upper atmosphere.

Reply to  joelobryan
March 13, 2017 6:43 am

Ya, and the temperature went up

Gerald Machnee
March 10, 2017 5:03 pm

Attn: Nick
i thought Obama revised the USA to 57 states. Any problem with that revision?

Reply to  Gerald Machnee
March 11, 2017 12:42 am

He may be right. I was once in the US seeking to rent a car. Everything about my form seemed OK, except that I hadn’t filled out the part that asked which state I was from. I explained that I wasn’t from US, but they said no, you have to fill it out. So I wrote Victoria, and everyone was satisfied.

Ian W
March 10, 2017 5:12 pm

The particularly hot days coincide with low humidity.

That is completely unsurprising. Temperature is the incorrect metric for heat content as the enthalpy of the air varies with humidity. Hence a low humidity day will show far greater extremes of temperature than a high humidity day.

An example I have given several times before – A volume of air in a misty Louisiana bayou after an afternoon shower at 75DegF and close to100% humidity has twice the energy content in kilojoules per kilogram as a similar volume of air in Death Valley at 100degF.

Averaging temperatures is a nonsense. The claim of AGW is that heat is trapped, so heat is what should be measured – using units kilojoules per kilogram. Heat content is dependent on the enthalpy of the atmosphere which varies with humidity.

Macusn
Reply to  Ian W
March 10, 2017 5:43 pm

+1000
Mac

Hugs
Reply to  Macusn
March 11, 2017 3:43 am

Frankly I don’t agree, both temp and heat content only approximate how you, your dog, your garden or heating bill sees the temperature.

Graemethecat
Reply to  Ian W
March 10, 2017 6:21 pm

Absolutely correct. Enthalpy (heat) and temperature are fundamentally different quantities. Apparently even elementary Physics is beyond the understanding of Climate “Scientists”.

increasingly skeptical
Reply to  Ian W
March 10, 2017 9:42 pm

Thanks for that.As a scientist (biologic )but a relative newbie with in this sphere could you point me to a link where i could learn more?
.It makes sense in real life experience

John Harmsworth
Reply to  Ian W
March 10, 2017 9:46 pm

Bingo! This fact alone makes a mockery of statements about “hottest evah”!

Crispin in Waterloo but really in Beijing
Reply to  Ian W
March 11, 2017 6:00 pm

Ian W

Bingo. You save me writing the obvious. Of course the hottest days are the driest, that is all about the enthalpy. As no one seems to be recording the enthalpy of the air column – just temperatures – we know very little about then energy rise or fall.

We should have a new form of weather programme called ‘the weather as if basic principles of thermodynamics mattered’.

Brook HURD
March 10, 2017 5:39 pm

As Jim Hansen teaches us, if the emperical data does not support your hypothesis, then torture the data untill it does match your hypothesis.

And they call this climate “science.”

March 10, 2017 5:45 pm

Has this bruising evidence been submitted for peer review ?

Hugs
Reply to  fredcehak
March 11, 2017 3:45 am

What do you think this is? Blog or journal? 🙂

Robert from oz
March 10, 2017 5:52 pm

I think it’s time this govt department changed its name .
Maybe (the bureau of manipulation) that way they don’t have to homogenise , err sorry change that much .

noaaprogrammer
March 10, 2017 8:28 pm

Bruiser, if you’re not already familiar with Benford’s Law of Leading Digits, read up on it and apply it to both sets of data. Note: an adjustment to applying the algorithm may have to be made if the data range is too narrow.

(Auditors use this on financial records. It’s quite effective at detecting “cooked books.”)

Hugs
Reply to  noaaprogrammer
March 11, 2017 3:49 am

It does work if numbers have been invented. It does not help on scaling or recalibrating with artificial factors.

Peta from Cumbria, now Newark
March 11, 2017 1:00 am

Is it out of order to ask or wonder, in the very big picture, just what is going on here at the BoM and many other places also (NOAA, NASA GISS, UEA etc)

These are supposedly upstanding civil servants. They started their jobs with all the genuine very best intentions to be honest, clear, clean, open, transparent etc etc and to work for the public good.

So what happened, how did they come to be adjusting historical data to suit what is a modern-day craze or fad.
CO2 has been around for a very long time yet suddenly its the bad guy.

Why has no-one inside that ‘operation’ had the guts or where-with-all to call it out? Were they ‘following orders’ (and where did we hear that excuse before?) Political Correctness or Noble Cause Corruption or rampant greed and hypocrisy? Did they think they can get away with it? Because its childish, grown-up people know you cannot live a lie, you’ll always be found out.
Isn’t it childish to be giving names to mediocre weather events as we do now in the UK?

Are they scared of something, is The Climate a proxy for something else? Maybe its jobs/homes/family security but for so many people to engage, wholesale, in this (petty) corruption is contrary to their supposed & entire ethos as public servants.
Once you’re installed in ‘Government’ you’re safe for life really, the big machine looks after you in regards salary, job security and not least pensions. Anyone who is self employed will tell you that.

So I ask, why are so many people behaving as children, why are they scared of ‘The Natural World’ – the very thing that brought them into existence ffs, why have they such a low shock tolerance, why doesn’t anyone break ranks and speak out?

Sure as eggs are eggs, anyone inside conventional law enforcement will tell you how villains almost always start small and work their way up to greater and greater feats of badness.

What *is* going on?
I say ‘sugar’ It can only be the one common factor among such a large and international group of people. What they eat.

YMMV but to remain silent is as someone famous once said about ‘evil and good men remaining silent’

Griff
March 11, 2017 1:05 am

And you contacted the BOM and asked them about this?

“If you want to know more, please contact us at climatedata@bom.gov.au

lee
Reply to  Griff
March 11, 2017 1:11 am

Shouldn’t BoM have Explanatory Memoranda for this?

Bruiser
Reply to  Griff
March 13, 2017 1:58 pm

Griff,
yes, I did send an e-mail to the former Director of Meteorology. I am still waiting for a reply.

Dean
March 11, 2017 1:11 am

Your problem is that you used pretty colours in the charts.

Griff is still mesmerised at the pretty colours and has not read any of your post.

March 11, 2017 2:22 am

From the account given here at WUWT, there would seem to be similarities to the recent John Bates NOAA matter with its adjustments to the global surface temperature record raised first on Climate Etc.
One strong similarity comes from the formalism to cope with versions. Best practice uses specific version numbers as well as detailed descriptions of how to convert from one version to the next, as well as premature use of an incomplete release. Dr Bates was objecting to departure from this best practice.
If a proper use is not made of version numbers, there can be existing papers made incorrect or irrelevant because of new versions that overtake those published, or papers whose authors are unaware of more than one version – there are obvious problems that need no more explanation here.
The BOM might have used version numbers correctly in the present case and the adjustments might have been proper. They need to clarify, because Bruiser and perhaps others have encountered an unexplained inconsistency of a type that plausibly can lead to avoidable error.
Even if there needs only to be a change in housekeeping, there seems to be a case for some BOM action.
Geoff.

Bruiser
Reply to  Geoff Sherrington
March 13, 2017 10:13 pm

G’ Day Jeff, the BOM do regularly revise the data and provide notices that flag such occurrences. The problem is that there are no notices that account for the timing or magnitude of the changes.

Stephen Greene
March 11, 2017 2:35 am

Look, calibrations are done before data are collected, period. ANYTHING ELSE IS SUSPECT. and should not be called a calibration!

Hugs
Reply to  Stephen Greene
March 11, 2017 3:53 am

It could be called climate science? “We kept digging and digging and finally we found a way to fool ourselves with a calibration that would fit to our assumptions.”

Reply to  Stephen Greene
March 13, 2017 6:33 am

“Look, calibrations are done before data are collected, period. ANYTHING ELSE IS SUSPECT. and should not be called a calibration!”

Spencer and Christy calibrate AFTER the data are collected. Basically you discover an inconsistency in the data, you investigate, you find some changes in the method of observation and you re calibrate or adjust if you can.

March 11, 2017 4:56 am

Seriously, don’t waste time proving anything to what’s his name.

Kozlowski
Reply to  Matthew W
March 11, 2017 2:44 pm

Matthew, it’s not about proving or disproving to the likes of Griff or Stokes. It is for people like myself and the silent majority who rarely comment, who need to see the back and forth, the discussion, argument, point and counterpoint. It is why I find this site so very interesting. Good science thrives on discourse and disputation. Even if many points can be considered disingenuous, they need airing and rebuttal.

drednicolson
Reply to  Kozlowski
March 11, 2017 4:39 pm

Indeed. “Don’t feed the trolls” is more often than not the cry of the internet ideologue, for whom no one can dissent honestly. If you express anything but 110% agreement, you must be stupid, trolling, morally bankrupt, paid off by the Evil Corporate Empire, or some combination of the previous. It’s a ploy to shut down discourse, disguised as a sensible-sounding bit of ‘netiquette. Just because we’ve seen the same spurious arguments refuted dozens of times, doesn’t mean that Larry the Lurker and his peers have.

rbabcock
March 11, 2017 6:00 am

You publish the raw data and publish the corrected data with the explanation for the correction(s) along side of it. Simple as that. That way you never lose anything and individuals can check the checkers or publish their own “corrected” data.

But the original data is never destroyed.

Crispin in Waterloo but really in Beijing
March 11, 2017 6:25 am

This is the smoking hot gun. Well researched.

henryp
March 11, 2017 8:18 am

Also noticed irregularities at Bom after reporting cooling at a certain place in AU..

March 11, 2017 2:14 pm

Griff, It would be great you if you just placed the explanation here.

Also, why the Bureau deleted the hottest day ever recorded in Australia using standard equipment, which was back in January 1909: http://jennifermarohasy.com/2017/02/australias-hottest-day-record-ever-deleted/

Of course, the Bureau also change the data for cyclones – creating category 5 cyclones from category 2 events. They are a disgrace: http://jennifermarohasy.com/2015/02/know-cyclone-marcia-category-5-landfall/

Streetcred
Reply to  Jennifer Marohasy
March 11, 2017 4:41 pm

Jen, when you address Griff, you must use pretty colors … rational thought isn’t his/her/it’s strong suite.

Patrick MJD
Reply to  Jennifer Marohasy
March 11, 2017 9:04 pm

Interesting reading Jenifer. However, you won’t meet Griff’s expectations and your qualifications won’t meet his criteria to comment on temperature recording, or anything to do with weather and climate. He has very high standards you see, like The Gaurdian and Cleantecnica etc…

Philip Schaeffer
March 12, 2017 6:21 am

Lol, don’t you guys claim to have higher standards than those you criticize?

The attacks on Griff are childish in the extreme.

[most of Griff’s comments are childish thinking, so some commenters respond in kind, they don’t speak for the blog owner or anyone but themselves -mod]

Philip Schaeffer
Reply to  Philip Schaeffer
March 12, 2017 5:49 pm

Mod said:

[most of Griff’s comments are childish thinking, so some commenters respond in kind,]

Are you equivalising the personal attacks on Griff with what you describe as his childish thinking?

[they don’t speak for the blog owner or anyone but themselves -mod]

No, but you allow them to do so, and seem to frame these attacks as a reaction to what you describe as childish thinking.

Patrick MJD
Reply to  Philip Schaeffer
March 13, 2017 2:08 am

“Philip Schaeffer March 12, 2017 at 5:49 pm”

Only one person to blame for that hook, line and sinker and that is Griff.

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