Tag Archives: Instrumental temperature record

Historic variations in temperature number Four-The Hockey stick

Guest essay by Tony Brown Section 1 Summary of a previous article; A short while ago I published an article on ‘Noticeable climate change’ during the past 500 years, based on historical observation and instrumental records. To understand the context … Continue reading

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Posted in Paleoclimatology, Temperature | Tagged , , , , , , , | 83 Comments

Over 650 snow records set in USA this week – another wonky surface station located

UPDATE : The NWS responds about the station issue, see below. – Anthony Almost 60% of the contiguous USA covered in snow. While pundits spin attempts at linking snowfall in the Northeast USA to AGW, much like they do in … Continue reading

Posted in Climate data, records, snowfall, Weather, Weather_stations | Tagged , , , | 111 Comments

Japan’s ‘Cool Hand Luke’ moment for surface temperature

At NASA’s Climate 365, there is an interesting story posted with this statement and a graph: Some say scientists can’t agree on Earth’s temperature changes Each year, four international science institutions compile temperature data from thousands of stations around the … Continue reading

Posted in Climate data, NASA GISS, NCDC, NOAA | Tagged , , , , , , , , | 122 Comments

Station bias – an old problem

A number of readers have commented about the story from Sunday about NOAA’s experiment at Oak Ridge Laboratory to determine the warming effects of siting suggesting that the experiment was long overdue. many found it surprising that it has taken … Continue reading

Posted in Surfacestations paper, UHI | Tagged , , , , , | 41 Comments

Hansen’s NASA GISS – cooling the past, warming the present

The Climate of Gavin: How GISS Have Changed The Temperature Record Since 2008 Guest post by Paul Homewood I ran a post yesterday, showing how the latest version of GISSTEMP had changed from using Hadley/Reynolds to ERSST for ocean temperatures, with … Continue reading

Posted in Gavin Schmidt, James Hansen, NASA GISS | Tagged , , , , , , , | 67 Comments

AR5 Chapter 11; Hiding the Decline (Part II)

Guest post by David M. Hoffer In my first two articles on the leaked AR5 Chapter 11 (near-term projections) I looked at the caveats with which the IPCC is now surrounding their projections, and the lengths to which they are … Continue reading

Posted in IPCC, IPCC AR5 leak | Tagged , , , | 209 Comments

Dr. David Whitehouse on the AR5 figure 1.4

Dr. David Whitehouse of the GWPF expounds on the “prime statistic of global warming” graph and its failure, as first reported here. The Leaked AR5 Report And Global Temperature Whatever one’s view about the leaking of the draft IPCC AR5 … Continue reading

Posted in IPCC, IPCC AR5 leak | Tagged , , , , , , , | 107 Comments

The Met office responds to ‘Global warming stopped 16 years ago’

This article and graphic from David Rose in the UK Daily Mail has caused quite a stir as we covered it here over the weekend.  The Met Office has responded exactly as one would expect they would and I repeat … Continue reading

Posted in Climate data, Global warming | Tagged , , , , , | 101 Comments

UAH global temperature – up .06C – not much change

UAH Global Temperature Update for August, 2012: +0.34 deg. C By Dr. Roy Spencer The global average lower tropospheric temperature anomaly for August (+0.34 °C) was up from July 2012 (+0.28 °C): Here are the monthly departures from the 30-year … Continue reading

Posted in Climate data | Tagged , , | 59 Comments

Lies, Damn Lies, and Anoma-Lies

Anomalies are unsuitable measure of global temperature trends Guest post by David M. Hoffer An anomaly is simply a value that is arrived at by comparing the current measurement to some average measurement.  So, if the average temperature over the … Continue reading

Posted in Climate data | Tagged , , | 159 Comments

Climate FAIL: GISS is presenting 2012 US temperature as ‘off the chart’, while preventing older data from being archived

UPDATE: 8/22/12 9AM The problem has been solved, GISS responded to my complaint -Anthony Like the erroneous graph at California Governor Jerry Brown’s climate denier slam site,  here’s another one of those things that I’ve been sitting on for about … Continue reading

Posted in Climate FAIL, NASA GISS | Tagged , , , | 81 Comments

July was also the 329th consecutive month of positive upwards adjustment to the U.S. temperature record by NOAA/NCDC

I’ve noticed there’s a lot of frenetic tweeting and re-tweeting of this “sound bite” sized statement from this Climate Central piece by Andrew Freedman. July was the fourth-warmest such month on record globally, and the 329th consecutive month with a … Continue reading

Posted in Climate data, Weather_stations | Tagged , , , , , , | 154 Comments

Dear NOAA and Seth, which 1930′s were you comparing to when you say July 2012 is the record warmest?

The press release is out, and the usual serial bloviators are rushing to trumpet the news. July 2012 was the hottest ever on record! “Yikes! We’re gonna roast! Global Warming!” they wail on Twitter and blogs. The driver of this … Continue reading

Posted in Climate data, heat wave, records, Weather | Tagged , , , , , | 87 Comments

Has the CRUTEM4 Data been fiddled with?

Guest post by Ed Thurstan Abstract It is apparent from the data that CRUTEM4 temperatures adjustments have, in part, been made with reference only to the earlier CRUTEM3 data, rather than raw temperature data. Further, the adjustments depend on the … Continue reading

Posted in Climate data | Tagged , , , , , , | 158 Comments

Tisdale on Polar Amplification

Polar Amplification: Observations versus IPCC Climate Models Guest post by Bob Tisdale We’ve illustrated and discussed polar amplification in a few posts in the past. See here and here. Wikipedia has a short blurb about it: Polar amplification is the greater … Continue reading

Posted in Arctic, IPCC, Modeling, NASA GISS | Tagged , , , , , , , , | 37 Comments

Declining global average cloud height: “A significant measure of negative feedback to global warming”

Guest post by Dr. Pat Michaels – reposted (with permission) from World Climate Report A new paper just published in Geophysical Research Letters by Roger Davies and Mathew Molloy of the University of Auckland finds that over the past decade … Continue reading

Posted in Climate sensitivity | Tagged , , , , , , , | 99 Comments

How reliable are global temperature “anomalies” ?

Guest post by Clive Best Perhaps like me you have  wondered why “global warming” is always measured using temperature “anomalies” rather than by directly measuring the absolute temperatures ? Why can’t we simply average  the surface station data together to … Continue reading

Posted in Climate data | Tagged , , , , , , , | 82 Comments

Tisdale on Foster and Rahmstorf – take 2

Bob has asked me to carry this post, and I’m happy to do so. For those who want to criticize without contributing anything but criticism, I offer this insight: The only real mistake is the one from which we learn … Continue reading

Posted in ENSO, Sea Surface Temperature | Tagged , , , , , , , | 147 Comments

A controversial look at Blackbody radiation and Earth minus GHG’s

Guest Post by Reed Coray On Dec. 6, 2011 12:12 am Lord Monckton posted a comment on a thread entitled Monckton on sensitivity training at Durban that appeared on this blog on Dec. 5, 2011. In that comment he wrote: … Continue reading

Posted in Radiation, Science | Tagged , , , , , , , | 239 Comments

UCAR on Blocking Highs, heat waves, and modeling limits

Dr. Roger Pielke Sr. writes: Candid Admission By UCAR – “Blocking The Way – Predicting The Atmospheric Detours That Lead To Weather Troubles” There was an interesting article in the Fall issue of the UCAR Magazine titled by Bob Henson titled Blocking The … Continue reading

Posted in heat wave, Modeling | Tagged , , , , , , , | 50 Comments

An Initial Look At The Hindcasts Of The NCAR CCSM4 Coupled Climate Model

Guest post by Bob Tisdale OVERVIEW This post compares the instrument observations of three global temperature anomaly datasets (NINO3, Global, and North Atlantic “Plus”) to the hindcasts of the NCAR couple climate model CCSM4, which was used in a couple … Continue reading

Posted in Modeling | Tagged , , , , , , , | 104 Comments

Real Climate pans BEST and Muller

In a shocking development that may represent a singularity, I find myself in agreement* with parts of an opinion piece posted on Real Climate today called Berkeley Earthquake Called Off. Dr. Eric Steig writes: Anybody expecting earthshaking news from Berkeley, … Continue reading

Posted in Berkeley Earth Surface Temperature | Tagged , , , | 64 Comments

The Berkeley Earth Surface Temperature project puts PR before peer review

UPDATE: see this new story BEST: What I agree with and what I disagree with – plus a call for additional transparency to prevent “pal” review ======================================================= Readers may recall this post last week where I complained about being put in … Continue reading

Posted in Berkeley Earth Surface Temperature, Climate data, Peer review, Post-normal science | Tagged , , , , , , | 409 Comments

Analysing the complete hadCRUT yields some surprising results

From The Reference Frame, 30 July 2011 via the GWPF HadCRUT3: 30% Of Stations Recorded A Cooling Trend In Their Whole History The warming recorded by the HadCRUT3 data is not global. Despite the fact that the average station records … Continue reading

Posted in Climate data, GHCN, Weather_stations | Tagged , , , , , | 111 Comments

Crater Lake USHCN weather station – the GISS removal

Readers may recall I wrote in this article about my family memorial day excursion to Crater Lake: Crater Lake happens to have a USHCN weather station, and it is one of the few stations that GISS excludes (they have an … Continue reading

Posted in Weather_stations | Tagged , , | 78 Comments

Siting related temperature bias at the Dutch Meteorological Institute (KNMI)

“This a complicating factor for the homogenization of daily temperature series.” WUWT first reported on the issues with the KNMI De Bilt weather station in October 2009 here. About that time, Dr. Pielke Sr. and I were given access to … Continue reading

Posted in Climate data | Tagged , , , | 38 Comments

NCDC cites “controversy” with the UAH temperature record, and the search for a “true climate signal”

This article in the January/February edition of WIRES Climate Change doesn’t surprise me at all. With the uncertainty of the surface temperature record in question, the Met Office’s Peter Thorne and NCDC’s Tom Peterson, who once wrote a ghost authored … Continue reading

Posted in Climate data | Tagged , , , , , | 67 Comments

Climate Science Myths And Misconceptions – Post #2 On The Metric Of Global Warming

Guest post by Dr. Roger Pielke Senior As discussed in the post Climate Science Myths And Misconceptions – Post #1 On The Global Annual Average Surface Temperature Trend the global annual average surface temperature trend has become the icon of communicating climate … Continue reading

Posted in Climate data | Tagged , , | 38 Comments

Pielke Senior: Climate Science Myths & Misconceptions

Climate Science Myths And Misconceptions – Post #1 On The Global Annual Average Surface Temperature Trend By Dr. Roger Pielke Senior There are a remarkable number of myths and misconceptions about climate science. In a set of upcoming posts in the coming weeks starting … Continue reading

Posted in Uncategorized | Tagged | 28 Comments

Expect the BEST, plan for the worst

RELATED ARTICLES, highly suggested: Clarification on BEST submitted to the House Pielke Sr. on the Muller testimony Independent company station siting analysis demonstrates the problem Quote of the Week – other scientists weigh in Guest Post by Willis Eschenbach Well, I had … Continue reading

Posted in Uncategorized | Tagged | 297 Comments

Briggs on Berkeley’s forthcoming BEST surface temperature record, plus my thoughts from my visit there

UPDATE: for those visiting here via links, see my recent letter regarding Dr. Richard Muller and BEST. I have some quiet time this Sunday morning in my hotel room after a hectic week on the road, so it seems like … Continue reading

Posted in Climate data | Tagged , , , , , , , | 121 Comments

A Cherry-Picker’s Guide to Temperature Trends Update: Warming Crisis Not

by Chip Knappenberger at Master Resource Back in October 2009, my post “A Cherry-Picker’s Guide to Temperature Trends” examined the many different statements that could be made to describe the tendencies of global temperatures over the past 20 years. I concluded that … Continue reading

Posted in Uncategorized | Tagged , , , | 21 Comments

Some People Claim There’s a Human to Blame (GW Tiger)

Guest post by Ira Glickstein Some people claim that there’s a woman to blame, But I know, it’s my own damn fault.. The original Jimmy Buffet lyrics say “woman to blame” but I changed it to “human” in the title … Continue reading

Posted in Carbon dioxide, Climate data, IPCC, Land use land cover change, measurement | Tagged , | 95 Comments

WMO: 2010 warmest, but no statistically significant difference between global temperatures in 2010, 2005 and 1998

See below for an interview from Dr. Bob Carter. Press Release No. 906 For use of the information media Not an official record 2010 equals record for world’s warmest year Geneva, 20 January 2011 (WMO) – The year 2010 ranked … Continue reading

Posted in Uncategorized | Tagged , | 56 Comments

Surface temperature uncertainty, quantified

There is a new paper out that investigates something that has not previously been well dealt with related to the surface temperature record (at least as far as the author knows). “Sensor measurement uncertainty”. The author has defined a lower … Continue reading

Posted in Climate data, Weather_stations | Tagged , , , | 101 Comments