How not to measure temperature, part 3

31 05 2007

The picture below is from Oregon State Climatologist George Taylor. You may have heard of him, the Governor of Oregon tried to get him fired for not jumping on to the global warming bandwagon because he doesn’t see enough supporting evidence.

forestgrove.jpg
The picture is of Forest Grove, Oregon, and the temperature plot below shows how it is warming. But George says:

Yes, it’s a window air conditioning unit to the east and the edge of a large asphalt parking lot to the north, northwest, and west. The pic is shot looking northeast. For those of you that may not immediately realize this, air conditions exhaust hot air to the outside.

Read the rest of this entry »





Draw your own conclusion from this map

30 05 2007

Today I visited my friend Jim Goodridge, former California State Climatologist and the man with a garage full of data going back to before the Gold Rush.

He’s been quietly toiling away in his retirement on his computer for the last 15 years or so making all sort of data comparisons. He gave me two CD ROMS full of data that I’m just now wading through. One plot which he shared with me today is a 104 year plot map of California showing station trends after painstakingly hand entering data into an Excel spreadsheet and plotting slopes of the data to produce trend dots.

He used every good continuous piece of data he could get his hands on, no adjusted data like the climate miodelers use, only raw from Coopertive Observing Stations, CDF stations, Weather Service Offices’s and Municipal stations.

The results are quite interesting. Here it is:

ca_temp_trend_map.gif

Squint hard and you can see a pattern emerge.





Restaurant Inspections tell a different story

30 05 2007

oriental_buffet.jpg

Tuesday on page 7A of the Enterprise Record there was a full page ad for the Oriental Buffet at the corner of East Avenue and Esplande that touted a copy of the most recent Butte County Health Department inspection with the words in bold “Compliance Achieved” on the newspaper ad.

You may remember the previous restaurant left an indelible mark in the minds of many Chicoans when it was closed down over a year ago due to massive health violations. Here is the ER Article.

Everybody deserves a chance to succeed, but I have to wonder about the wisdom of opening a door like this by putting your health report in a newspaper ad because it invites people to take a further look. It was the topic of my morning discussion group on Tuesday, so I decided to look for myself.

You can see Food Facility Inspection Reports for the Chico Area online here

And the inspection reports starting 5/07/07 for the Oriental Buffet are here:
( you’ll need Adobe Acrobat PDF reader to view these – its free here )


Oriental Buffet, 2539 Esplanade, Chico 05/07/07 Inspection


Oriental Buffet, 2539 Esplanade, Chico 05/08/07 Re-Inspection


Oriental Buffet, 2539 Esplanade, Chico 05/09/07 Re-Inspection


Oriental Buffet, 2539 Esplanade, Chico 05/11/07 Re-Inspection

On the first inspection on 5/07/07 there were 7 major violations and 14 minor ones, for a total of 21 violations. The inspector made 22 notations on the issues filling two pages. The next day on 5/08/07 they were down to 4 major violations and no minor ones. On 5/09/07 they were down to 3 major violations. On 5/11/07 they finally achieved “compliance”. The restaurant has been open since April 8th.

But I have to wonder, compliance for how long? You have to wonder that when a restaurant runs a full page ad touting “compliance” given the visually dramatic stigma the building has attached to it maybe the owners don’t fully understand what they are up against. Like I said, everybody deserves a chance to succeed, but perhaps a different theme would be the way to do it in this case.

To be fair though, I’ll point out that the inspection reports show that Egg Roll King on Palmetto needed 4 attempts to reach compliance this year , as did Gen Kai on Pillsbury, and Big Al’s needed 4 last year and so did Rice Bowl this year, and so did Sin of Cortez. Thai House on Broadway needed 5 inspections this year.

The all time high was Happy Garden on Cohasset with six consecutive inspections required last year before compliance was acheieved.





How not to measure temperature, part 2

28 05 2007

I decided I’d drop some more fun with entropy your way. Here is the USHCN
station of climate record in Redding, CA GISS number # 425725920010 and used in
the climate modeling database

It is now operated by the US Forest Service at their HQ located at the
Redding Airport. It used to be operated by the National Weather Service, but
that WSFO closed in the mid 90’s.

Like Marysville, the site is surrounded by asphalt, and the surface is
unnatural – its wood chips over weedmat, and I’ll have to say it was hot as heck
to walk on during mid-day..

But the kicker is the “accessories” they’ve added for convenience of running
the hygrometer and for night observations. Yes it is another fine high-quality
USHCN climate recording site. I wonder how many times they forgot to turn off
the light? It looks like there might be room for a hot plate to keep your coffee
warm while making observations.

overview

add a blower

The blower is used to run air past the wet bulb hygrometer…its not the
correct way
to do it (manual aeration by rotation is specified).

let there be light

Here is the satellite picture from Google Earth
redding_satellite.jpg





Memorial Day

28 05 2007

our_US_flag.jpg

This morning, I took my children out front, and we placed three flags in our front yard. Each child got one little flag on a wooden stick to plant in the front garden, while mommy and daddy got the big flag to hang from the porch.

After a little discussion on why we did this on Memorial Day,” to remember those who keep us free”, my son William remarked, “ok…can we wash the car now?” (that was our next project).

Well maybe it’s a little early at nearly 4, to install some patriotism. But later when William and I drove to the hardware store together he said “Daddy, how come those houses don’t have flags? We have flags”. It was then I realized we were the only house on our entire street displaying flags today.

Good question son, good question.





The Meriam Park Cell Pickle – SOLVED

27 05 2007

khsl_radiosite_pic.JPG There’s an interesting thorn in the side of the recent planning commission approval of Meriam Park that nobody seems to have brought up or discussed. Maybe there are plans I’m not aware of, but given the issues being raised with a cell phone tower elsewhere in the city, it seems the issue would have been vocalized by now.

Read the rest of this entry »





How not to measure temperature

26 05 2007

I’m surveying climate stations of record around California and documenting their condition as part of a larger project I’m doing. You’ll see more about it here in the near future.

Today I visited Marysville’s Fire Station, just off Hwy 70 at 9th and B Street, where they have the station of record for the city using the MMTS electronic sensor installed by the National Weather Service. The data from this station is part of the USHCN (US Historical Climatological Network) and is used in the computer modeling used to predict climate change.

The Marysville station is located behind the fire department building on a patio and is probably the worst site visited so far. In addition to the sensor being surrounded by asphalt and concrete, its also within 10 feet of buildings, and within 8 feet of a large metal cell tower that could be felt reflecting sunlight/heat. And worst of all, air conditioning units on the cell tower electronics buildings vent warm air within 10 feet of the sensor. Oh and lets not forget the portable BBQ the firefighters use a “couple times a week.” The area has been constantly added to, what was once a grass rear yard was turned to a parking lot, then more buildings added, then a cell tower with one, then two electronics buildings and the air conditioners…no report on how long the firefighters were BBQ’ing back there, when they figured out why I was asking all the questions they clammed up.

I can tell you with certainty, the temperature data from this station is useless. Look at the pictures to see why, and is it any wonder the trend for temperature is upward?

Marysville_issues1.JPG

Marysville_issues2.JPG

Marysville_issues3.JPG

Above: Vehicles with hot radiators park within 6 feet of the temperature sensor!

marysville_plot.jpg

Now compare Marysville to Orland, just 50 miles away, where there’s not been any significant change in the last 100 years at the measuring location. Its obvious that Marysville is measuring UHI (Urban Heat Island) effects.

OrlandCA_USHCN_Site_small.jpg

So the question is, how does bad data like this slip into the NASA GISS model database?





Dihydrogen Monoxide

25 05 2007

It appears that in the quest to save our planet from dangerous chemicals, people will blindly sign anything. Read more about this dangerous chemical here: http://www.dhmo.org/ It’s “an odorless, tasteless chemical” that can be deadly if accidentally inhaled.

DHMO Truth

This chemical is so dangerous that a local city council in Aliso Viejo, CA put it on the agenda to ban foam containers made with it. I expect our liberal city council may soon address this danger like we’ve already done for nuclear weapons in the city limits.

Penn and Teller provide an entertaining look into mindless activism.

with a hat tip to Mark…





Fine Me

22 05 2007

WMD_Boom_tshirt.jpg

My friends at coffee this morning got a huge laugh out of Chico Peace and Justice Center member Sherri Quammen’s claim in a vitriol filled letter to the editor that I’m the “real WMD”.

For somebody who professes “peace and justice”, she sure seems to have a lot of anger to vent. She’s sent letters to all three newspapers, the ER, Chico Beat, and you’ll see the same letter come Thursday at the Chico News and Review I’m sure. Lately, the message of “peace on earth” seems to have lost the accessory clause of “goodwill towards men”. Though its hard to tell through her rant just what she dislikes about me most, it appears that my views and research into climate change must be the main factor.

I sent her a nice note last week, offering to meet and get aquainted over coffee or tea someday, (since we’ve never met) after the letter appeared in the Chico Beat, so far no response.

But that’s OK, being a public person, criticism comes with the territory. It’s an occupational hazard. I guess I should be honored that my threat level has been elevated. Poor Al Gore takes all sorts of flak daily.

Sooo….since I’ve been labeled a WMD, I think that I’ll have to look over my shoulder a lot to make sure I’m not being followed by police officers intent on giving me a ticket in case I go off in the Chico city limits. That’s a $500 fine you know.

To make it easier for people to spot me, I think I’ll get a T-shirt that says simply “BOOM”.





Gravel Mine proponents take different approach

20 05 2007

er-gravel-ad480.jpg

I found the full page color advertisement on page 5E of the Sunday Enterprise Record quite interesting.

It lists a number of environmental reasons why the M&T Baldwin Gravel mine would be a good thing, not the least of which is the reduction of the number of truck miles traveled in Butte County due to trucking in building gravel from outside the county, and the reduction in gasoline burned and GHG’s avoided helping “Global Warming”.

And then there’s the angle that this mine pit will fill with water, and create an animal habitat just like the Teichert Ponds have done when it was used as a borrow pit to construct Highway 99 overpasses. There we have a clear example of how a lowly gravel mine got turned into a nature habitat, and there was no help or “kickstart” to nature as the M&T operators are proposing for their pits destined to be ponds.

teichert_ponds.jpg

It will be interesting to see how opponents argue against the project with these environmental assets it offers.

Here’s how Chico Creek Nature Center described the Teichert Ponds for a walking tour they sponsored of them:

Read the rest of this entry »





Internet TV finally taking hold

19 05 2007

tunisia-tv.jpg

I don’t know what they are watching in Tunisia as shown above, but if places like that can be going to net TV it begs the question; Will 2008 be the year we can finally drop our expensive cable bills? It’s sure looking like it.

Joost is constantly adding content, ABC and CBS announced they will stream shows in HD, and media boxes such as the Apple TV becoming popular. Television networks finally seem willing and ready to distribute their TV shows on the web, and hardware manufacturers are finally making easy-to-use media boxes that will bring the web to the living room. There’s also TV sets emerging like the Sylvania combo TV that has a built in Linux based streaming video player along with regular, HDTV, TV, CATV and video inputs.

Do you think we’re finally there, the Internet-based TV-on-demand? If so, local TV stations like KHSL, KNVN, and KRCR had better get with the program soon or miss the boat. Maybe they can show Dave Vanore’s pig, Winnie, 24/7 as some porcine reality TV.

I’m proud to have made the very first live Internet TV system in Chico, which has been used now for over a year to broadcast City Council, School Board, and Planning commission meetings via the web. Its free, try it out sometime at this link If you have DSL or a Cable modem it will work well for you. It may not be as interesting as Tunisia TV, but maybe some city councilors could be convinced to liven up the show a bit.

BTW if you want to watch the Tunisia TV channel as shown above, here is the free Internet TV player you can download.





Computers for Classrooms offers nuke your hard drive service.

18 05 2007

drive_data2.jpg

I swung by the new offices of Computers for Classrooms today to get a quick tour of what they are doing with their brand new facility. Pat Furr, the director, was kind enough to show me around. I must say I was impressed. I’ve always been a fan of this organization, as they supply schools and low income families with thousands of computers each year. What is even more impressive – they do it by recycling old computers.

One of the problems with the process is making sure any donated or scrapped computer hard drives don’t retain any personal data. To do that, they have a nifty NSA rated disk wiping program that will do 20 drives at once to ensure that whatever they send back out could not possible have anybody’s data.

HD-6600.jpg
But what about the hard disks that fail? They can still be taken apart, repaired and data recovered. To solve that problem, CFC now has a hard disk degausser, seen at left. Basically its a device that stores up electrical energy, then releases it in a huge magnetic pulse onto the hard drive inserted into it. The pulse not only destroys the data on the drive, but is strong enough to warp the magnetic platters and the drive heads, making it completely unusable ever again.

And they’ll do it for a $5 donation for anyone that has a hard drive they want destroyed. They’ll even give you a certificate of destruction. It also works on magnetic video and audio tape, Zip disks, portable hard drives, floppies, and anything else that uses magnetic media to store data.

So if you have some incriminating, embarrassing, or sensitive data files, or maybe some old Nixon tapes, take them on down to Computers for Classrooms and tell Pat Furr I sent you. They are located at 315 Huss Dr., Chico, CA 95928 (see map) phone 895-4175 or email cfc@digitalpath.net

While you are there, you may want to help a needy family get a computer. They have complete systems available to the public for around $100 preloaded with Windows XP and Microsoft Office.





Bad Paint Job = Rising Surface Temperatures Part2

17 05 2007

A test of wood surface temperatures related to paint

NOTE: This is not research quality experiment, but a simple test to point me towards others tests and experiments. IR thermometers have limited resolution and are subject to calibration errors. The real experiment is being conducted on 3 identical Stevenson Screens with an NIST calibrated data logger and the results will be published in a couple of months.

You may recall a blog entry where I talked about

Bad Paint Job = Rising Surface Temperatures
? The premise is that the early
weather station temperature shelters called Stevenson Screens originally have
been specified to be painted with whitewash when the were designed and
comissioned in the 1890’s

cotton region shelter aka Stevenson Screen
Stevenson Screen at the NWS office in Monterey – good
paint but right next to asphalt parking lot and concrete walk – a
definite no-no!

Lately they have been repainted with lead, oil, and
latex based paints which have significantly different infra-red properties
(Pigment: Titanium Dioxide) than the Calcium Carbonbate based whitewash.

Curious to follow where the evidence leads, I decided to do a test today.

Preliminary spot test of the temperatures of bare wood, latex paint, and
lime based whitewash (CACO3)

5/17/06 by Anthony Watts, Chico, CA

Click thumbnail pictures for larger ones

Test setup in full sun. Three slats of 1×4 pine, 2 feet long each, bare wood
in the center as a control, latex on the left, whitewash on the right.


Methodology: Whitewash was mixed after conferring with Chemist Richard
Godbey of the Chemical Lime Company in Henderson NV and after reading a paper he
authored on the history and home creation of whitewash which you can read here
http://www.lime.org/BLG/Mold.pdf
(PDF)








Pictures: Materials, Mixing Whitewash, applying whitewash coat
1, coat 4 after 24 hour curing

Slats were all cut from same plank, chosen to be as knot free as possible,
cut to exact same size, 2 ‘ long, and spaced equidistant on the frame.

Measurements were taken 3 times with IR thermometer shown below, at1:50 PM,
2:10PM, and 2:20 PM PST to be sure results were repeatable. What you see below
is the 2:20PM spot test.
 


Device used to measure surface Temperature, A Fluke model 561 HVAC Pro IR
thermometer, handheld with laser dot sighting of measurement target



Temperature of bare wood, this represented average of several scans. The
temperature was 102.6 degrees F



Temperature of Latex Painted wood, the leftmost slat temperature 88.2F



Temperature of Whitewashed wood, the rightmost slat temperature 82.5F



Summary:

Temperature difference between bare wood and Latex painted wood was about 14
degrees F

Temperature difference between bare wood and whitewash painted wood was 20
degrees F

Temperature difference between latex painted wood and whitewash painted wood
was 5 degrees F


 

Next Test: time series temperature over several days measured by NIST
calibrated data logging thermometers compared to ambient aspirated air
temperature.





The Nation slams Global Warming

16 05 2007

TheNation_logo.gif

Here’s something that took me completely by surprise. In the most recent edition of The Nation, columnist Alexander Cockburn did a left wing smack down of Gore and the entire Global Warming solutions and carbon business model.

The article, titled “Who Are the Merchants of Fear?” Lobs some heavy artillery in the direction of the Goreacle. Here’s a few excerpts:

“These are multibillion-dollar computer modeling bureaucracies as intent on self-preservation and budgetary enhancement as cognate nuclear bureaucracies at Oak Ridge and Los Alamos. They are as unlikely to develop models refuting the hypothesis of human-induced global warming as is the IPCC to say the weather is getting a little bit warmer but there’s no great cause for alarm. Threat inflation is their business.”

And about Gore:

The world’s best-known hysteric and self-promoter on the topic of man’s physical and moral responsibility for global warming is Al Gore, a shill for the nuclear and coal barons from the first day he stepped into Congress entrusted with the sacred duty to protect the budgetary and regulatory interests of the Tennessee Valley Authority and the Oak Ridge National Lab. […] As a denizen of Washington since his diaper years, Gore has always understood that threat inflation is the surest tool to plump budgets and rouse voters.”

And this quote:
“…Richard Kerr, Science’s man on global warming, remarked, “Climate modelers have been ‘cheating’ for so long it’s almost become respectable.”

For those of you that don’t know this journal, The Nation is quite to the left. For example, on their main page today, you can find a web poll on “Who most deserves to be impeached?” (Bush Cheney, or Gonzales)

When such a clearly left and prominent journal starts taking shots at Gore, the IPCC, and climate modelers like James Hansen as the article written by Cockburn does, you have to wonder if the whole house of cards isn’t about to start falling down.

Wow.





Global Warming on Neptune

15 05 2007

The Planet Neptune

I covered global warming on Mars previously, but many climate change proponents shrug that off as being a “regional effect” that only affects Mars south pole as they say its related to changes in the orbit of Mars.

Ok fair enough.

But recently, a new paper was published in Geophysical Research Letters titled Suggestive correlations between the brightness of the planet Neptune, solar variability, and Earth’s temperature by Hammel, H. B., and G. W. Lockwood.

In a nutshell, they say they have found clear evidence of “global warming” on Neptune, and they have measurements and models to support it.

While they don’t claim a “smoking gun” for solar driven climate change, they do say in their abstract that ” If changing brightnesses and temperatures of two different planets are correlated, then some planetary climate changes may be due to variations in the solar system environment”

So we have three planets now with a warming trend; Earth, Mars, and Neptune. That’s not an insignificant coincidence.





Chico’s soon to be Pine Tree Cell Tower ?

14 05 2007

cellpine_tower.JPG

As I drove through Grass Valley today, the cell phone tower disguised as a pine tree reminded me that Tuesday night, the City Council will consider once again the cell phone tower proposal for the Chico Elks Lodge property.

I expect the usual suspects will be there, telling us all how “dangerous” the “radiation” from the proposed cell tower will be. Given the intenisty with which some will argue health issues, I expect some councilors will cave to the overly concerned. I don’t have a stake in this fight, except to say improved cell phone coverage in Upper Park will benefit everyone.

We’ll hear the old tired arguments about “dangerous radiation” emanating from cell towers, which I don’t see dangerous at all, I’d like to point out things around town that give off equal or greater amounts of “dangerous electromagnetic radiation” and the approximate relative field strengths to the proposed cell tower given its distance from the road.:

- Cell phones next to your head – 1000x greater
- Cell phone in the car you are riding in, – 100x greater
- Cell phones carried by people walking at the farmers market – 10x greater
- STL microwave link from radio station KZFR above city plaza to their transmitter – about the same
- WiFi router in your house 10x
- WiFi public hotspot in Has Beans 10x
- Channel 12/24 Live van around town, live at city plaza concert 100x
- Microwaving popcorn 1x
- Police radar traffic gun 10x (concentrated narrow beam)

So you see, “dangerous electromagnetic radiation” is everywhere. The fact is, its not dangerous at all, and I’d suggest those city councilors that don’t know their science, bone up. There really isn’t a leg for them to stand on when you look at the many other accepted electromagnetic radiation sources around town that emit equal or greater radio signal strengths.

Radio signal strength follows the inverse square law

That means that doubling the distance from a transmitter means that the power density of the radiated wave at that new location is reduced to one-quarter of its previous value.

Given the location of the proposed tower at the Elks Lodge is well set back from the road and building, and the park, I see no realistic issues of concern.





Mothers Day

13 05 2007


mothersday.png

Sung to the famous Italian song Funicili Funicila.

For a real hoot, see Rodney Dangerfield sing it here on Youtube





911 Truth

11 05 2007

You can use your mouse to interact with the flash graphic above.

The Chico News and Review has gotten quite a number of letters on their 911 Truth article which gave a platform to the people whom prefer to believe that a gigantic government conspiracy was the reason behind the 911 WTC collapse, and that the towers were brought down with explosives, rather than by fire.

I wrote a short blog essay on the subject, and a letter to the editor, pointing out that the recent collapse of the I580-880 freeway interchange had a lot of similarities, illustrating that fire can indeed take town steel and concrete structures.

Predictably, the 911Truthers lobbed a couple of ticked off letters back at me, even going so far as to say I’m “spreading distortions”.

While I don’t intend to argue their points, since you can’t usually come out winning when you argue with people whom believe conspiracy theories, I will present another view.

For those of you that prefer rational science and engineering, I present this item, a paper published in 2003 by The Journal of The Minerals, Metals & Materials Society, presents a balanced view that shows that the collapse didn’t need steel melting temperatures to occur. It was written by Thomas W. Eagar, the Thomas Lord Professor of Materials Engineering and Engineering Systems, and Christopher Musso, graduate research student, at the Massachusetts Institute of Technology.

You can read the report in its entirety here: http://www.tms.org/pubs/journals/JOM/0112/Eagar/Eagar-0112.html

Or just skip to this conclusion:
While it was impossible for the fuel-rich, diffuse-flame fire to burn at a temperature high enough to melt the steel, its quick ignition and intense heat caused the steel to lose at least half its strength and to deform, causing buckling or crippling. This weakening and deformation caused a few floors to fall, while the weight of the stories above them crushed the floors below, initiating a domino collapse.

There’s a maxim called Occam’s Razor; “All things being equal, the simplest solution tends to be the right one.” In other words, when multiple competing theories are equal in other respects, the theory that introduces the fewest assumptions and hypothetical entities tends to be correct. Conspiracy theories require many more assumptions, some unprovable, than a fire and materials failure does.

NOTE: Comments have been closed to prevent overrunn by 911 Truthers, whom seem as irrational as ever and intent on proving their twisted logic.





Home Solar installs falling in California

10 05 2007

solar_cells
The LA Times reports that California is seeing a big drop off in rebate applications for solar power systems. It seems that to get a rebate you have to also switch to a time of use rate with your utility.

The math of economics is not working out for many, especially for smaller systems that don’t fully cover use during peak hours. The result: homeowners are reluctant to go with solar energy because its starting to become economically unfeasible.

The difference between peak and off-peak rates is particularly large in the 11 counties of Central, coastal and Southern California, where CalEdison provides electricity service to 13 million customers. CalEdison charges summer time-of-use rates that range from 29.7 to 35.9 cents per kilowatt-hour between 10 a.m. and 6 p.m. on weekdays. It drops to a range of 16.3 to 18.6 cents per kilowatt-hour from 10 p.m. to 6 a.m. weekdays and all weekend days and holidays, according to documents filed with the PUC.’ There is likely an optimal system size for the smaller consumer of electricity that reduces consumer costs, but with so much in flux in today’s solar power market its hard to pin down the numbers, as it becomes a moving target.

Another factor is the strong worldwide demand for solar panels, almost to the point of shortages. In such a market driven economy, when a product is in high demand, there is little flexibility on price and often contracts take a long time to fill to completion just waiting for panels.





Site survey: Weather Station of Climate Record at CSUC

9 05 2007

To get an idea of the measurement environment that exists today at stations used to gather climate data, I visited the Chico State University Fram on Hegan Lane, south of the city, to do a site survey in the format done by Dr. Roger Pielke of Colorado State University. This station is part of the US Historical Climate Network of weather stations that have been used as the source for surface temperature data in many climate models and studies.

There were some interesting discoveries.

Site Survey

Chico State University Farm, Hegan Lane, Chico,
CA  95926 (530) 898-6343

Date: 5/09/07

Survey By: Anthony Watts


USHCN Reported Coordinates of site: CHICO
(39.71°N, 121.82°W; 56 m)

Measured GPS Coordinates of site:

Lat/Lon 39.69194˚  N  121.82127˚  W

Elevation
54.5592 m (179
feet)

Site description and known history:



California State University, Chico
has been in operation since a land grant
made the college a reality in 1887. The CSUC

Farm
has been in operation since 1963, and it is believed the current site
has been at the same location since then. The prior source and location for data in
the climate record for Chico is unknown as of this writing.

Curator notes:

  1. There has been encroachment by Oleander bushes
    onto the site in recent times, about 2 years ago, a prominent Oleander bush
    that was blocking the pyranometer view was removed, see before (sketch) and
    after photos below.
  2. The curator notes that there was a complaint
    from a meteorologist from WeatherNews about a change in temperature data that
    coincided with a repainting of the CRS’s a few years ago, but cannot recall
    the date exactly.

Site surveyor notes:

  1. There are missing louvers on the north side of
    the CRS containing the automated data logger and temp/dp sensor
  2. There is clear evidence that both shelters
    have been repainted with latex paint, including brush marks and drip marks.
  3. There is an asphalt road that curves around
    the site, from the southwest to the southeast
  4. The surface at the site is  mixture of
    gravel, soil, and debris. There is no grass.
  5. There is a water filled evapo-transpiration
    pan within  10 feet of each CRS, its lineage seems to indicate it goes
    back to the establishment of the site in 1963
  6. The fiberglass composite NEMA electronics
    enclosure containing the data logger, radio modem, and solar battery charger are placed
    inside the CRS within 6-8 inches of the temperature/dp sensor. The 12 volt gel
    cel battery is also inside the CRS. These items may
    introduce a heat bias from the operating electronics.

Images of the site:
(click for larger images)

   

North

   
   
   
West



East
   
   
   

South

   

Other Images:
(click for larger images)

Interior of west most CRS with data logger, temp/dp
sensor


Before (sketch) and after of vegetation
encroachment


Various details of disrepair on both CRS’s


Ground cover


Interior of east most, manual mercury thermometer
CRS


Evidence of repainting, brush-marks, drips