Google can be a great aid to serendipity. Doing some Googling the other day I was surprised to find a couple of my images from How not to measure temperature, Part 42 being used by a company that sells thermal imaging equipment. The company, Thermographix, wrote quite a long essay claiming that the IPCC missed a component of global warming in their reports by not addressing the heat from buildings and land use change on surface temperatures.
While I don’t agree with some of the claims in the article, I thought it was worth reproducing here because I’ve been saying for some time that the MMTS electronic thermometer phased in by NOAA since the mid 1980’s has been picking up heat from buildings due to cable trenching issues placing them closer to buildings. For example this visible and IR photo set I snapped at the USHCN station in Perry, Oklahoma:
Perry OK, USHCN station of record. Downtown at the fire station. Visible and IR
In the photo above, taken looking SE, the wall of the fire station appears to have been warmed by the afternoon sun, because as you can see the shaded area on the left side of the IR photo, it is cooler. The issue is: how much will this heat the air in the vicinity of the thermometer?
Thermographix has lots of similar IR photos to illustrate how buildings and building materials display their heat. The report below is from their website at:
http://www.thermoguy.com/globalwarming-heatgain.html
UN, CANADA, U.S., STATES, CITIES, ECONOMY, ETC. MISSING CRITICAL DATA ON GLOBAL WARMING CAUSE
Buildings on the surface of the entire planet and in every country are designed with temperature considerations. We want to use as little energy as possible, not waste non-renewable resources, create as few GHG emissions as possible and not generate any heat atmospherically.
The emissions from burning fossil fuels are toxic, contain mercury and end up in our water, food and bodies. Emissions can promote acid rain and affect the ability to sustain life. We don’t want to waste fossil fuels because they can’t be renewed. We don’t want to create heat on the surface of the planet because that changes the weather formula. Weather is the interaction of cold air, warm air and water vapor. Creating heat on the surface of the planet will affect weather, climate, agriculture, pollinators(food source) employment, economy, health, etc.
All the laws are in place to achieve the above but the bottom line is the entire global process is signed off as compliant because every university, tech school and academia in the world teaches temperature considerations in a calculator. Hard to imagine all the sciences are blind to temperature except it is a reality. Our visible spectrum can’t see temperature until it is glowing red hot. The United Nations and their membership are discussing climate change but in fact are blind and missing critical data.
PICTURES OF A WEATHER STATION
The next 2 pictures are going to show you the tools used to collect weather information. Take a look at the advanced technologies used in weather stations.
Here is a close up of the weather station
This page is important information for you on buildings that is not available to you. Your home or commercial property is signed off as compliant and insured. Your realtor, inspector, builder, developer and government do not verify your building compliance. This is free information you need to consider if you are buying, building or renovating. If you are building “green” this will open your eyes as to what that really means. It will shock you to see how California & other areas are knocked off the electrical grid treating heat symptoms. Hard to believe all of the electricity generated is wasted on a symptom and being blamed on economy.
Buildings use energy differently in the winter than it does in the summer. This page is related to heat gain associated with building design and energy use. Heat loss and images showing energy waste related to heat loss can be seen at HEAT LOSS FROM BUILDINGS
The information on this page isn’t controversial, it is simply the evolution of temperature measurement out of the calculator so objectives can be seen instead of assumed. This information is the result of thousands of hours of the most advanced temperature research in the world and is being lectured internationally in educational programs for medical professionals.
Buildings are designed to fluctuate with atmospheric temperature so there isn’t a heat gain atmospherically and so there isn’t more heat generated than the building is designed, insulated or insured for. You can see the weather station above isn’t providing us with UV and solar radiation impact. This page is to see the impact of solar interaction with development.
This first image was taken at 5:20 AM and the temperature outside was 59 degrees F. The thermal image should show the building fluctuating with the atmospheric temperatures.
Spot temperatures have been placed on the thermal image for comparison to the 59 degree F outdoor temperature.
BEFORE SUNRISE
The house is fairly consistent with atmospheric temperatures before sunrise. You can see the concrete steps holding heat from the day before.
AFTER SUNRISE
The next image was taken 2 hours after sunrise. It is 7:30 AM and the temperature is 63 degrees F. In theory the building should be fluctuating with atmospheric temperature. Put your mouse over the picture to see the thermal image. Is the building heating the atmosphere?
Solar exposure on absorbent finishes has caused the building to generate extreme heat as high as 149 degrees F when it is 63 degrees F. Surface materials are all hotter than atmospheric temperature very early in the morning. That generated heat is heating the atmosphere as well as exceeding the design temperature of the building.
BRAND NEW CONSTRUCTION
When the first set of images were shown to building professionals they assumed that it was isolated to a few buildings. The previous images verified solar impact so we wanted to highlight the solar impact on new construction. The next picture shows roofs with and without shingles on buildings designed for a maximum of 92 degrees F or 33 degrees C.
Spot temperatures have been placed on the thermal image.
The shingles are generating extreme heat the building isn’t designed, insulated or insured for very early in the morning.
FIRE RECONSTRUCTION
The building below is new fire reconstruction after a forest fire interfaced with this city. The building is designed for a maximum of 92 degrees F and it is a 59 degree F day. Is the building fluctuating with atmospheric temperature or exceeding design temperature?
Spot temperatures have been placed on the thermal image.
The same UV that burns our skin has caused excitation of solar exposed finishes causing the building to generate heat. This is at 11:00 AM and you can see the shaded areas performance versus solar exposure. The building isn’t designed for the temperatures it is generating and it is heating the atmosphere.
FIRESTORM 2003 KELOWNA FIRE RECONSTRUCTION
Kelowna lost over 240 homes in the Firestorm 2003 where a forest fire interfaced with Kelowna. The reconstruction was the newest construction standards. The next image will show if the building exterior is absorbing the sun’s rays or generating heat that was then absorbed.
Spot temperatures have been placed on the thermal image.
The reconstruction above shows the solar performance of different materials including shaded areas. All of the construction materials are exceeding the atmospheric temperature of 70 degrees F and the roof is close to 100 degrees F over atmospheric temperatures. This is warming the atmosphere and contributing to weather changes.
HOUSE PAINTED DARK COLORS
The next image was taken on a July day in 2002, 4 PM PST. The temperature is 95° F and the building is designed for 92° F. This 3 degree margin would be acceptable to accommodate those times of the year when it is marginally warmer. Observe the dark color of the siding, the lighter shingles, the tree and the fact there is foil over the windows. Covering the windows on the inside or outside is an attempt to stop the sun from coming through the windows and causing heat indoors.
Hold your mouse over the picture and the thermal image will appear. Spot temperatures have been placed on the thermal image.
The wall is designed, insulated and insured for a maximum of 92 degrees F and in some areas it is 100 degrees over design temperature. The foil over the windows isn’t addressing the problem, the heat is coming through the walls that aren’t designed for the extreme temperatures. In 2005, this home added a window air conditioner and in 2007 they added 2 more window air conditioners to treat the indoor heat. The air conditioners requires the electrical generation of 1000s of watts per hour to treat the indoor heat symptom and the heat generated outside isn’t discussed. In areas where coal is used to generate the electricity there are mercury emissions as well as acid rain contributions.
NEW COMMERCIAL CONSTRUCTION
The next building is new development where they have used dark absorbent finishes on the solar exposed sides of the building. It is 91 degrees F outside, is the building generating heat that exceeds the maximum temperature of 92 degrees F?
Spot temperatures have been placed on the thermal image.
The new construction is generating heat 100 degrees F over design temperature. The building isn’t insulated for these temperatures and the generated heat is heating the atmosphere.
PLACE OF PRAYER
The next image is of a church on an 86 degree F Day. There are several types of finishes on the solar exposed side of the building. Observe the tree, grass, brick, shingles and the brown ducting on the roof. Put your mouse over the image and see if the building is functioning close to the atmospheric temperature of 86 degrees F or if the building is exceeding its maximum design temperature of 92 degrees F.
Spot temperatures have been placed on the thermal image.
The building is generating extreme heat. Note the tree or grass is functioning within atmospheric temperatures and not imposing on the atmosphere. The building is designed for a maximum of 92 degrees F and the heat generated grossly exceeds 92 F so the heat transfers inside. The duct on the roof is the air conditioning treating the indoor heat symptoms. The air conditioning requires 1000s of watts per hour of wasted electrical generation.
ROW HOUSING
The next image is row housing, put your mouse over the picture and see the impact of solar radiation.
Spot temperatures have been placed on the thermal image.
The trees and green space is much cooler than the absorbent building finishes. Landscaping and responsible paint finishes could deal with this heat problem, taller trees would provide shade cover with zero emissions. Eliminating the heat would eliminate atmospheric heat.
GOLF COURSE DEVELOPMENT
We have observed several different types of construction and the rule has been solar radiation is causing heat generation on buildings. The next image will show you a new development surrounded by trees. To make room for development, trees were cut down and the ground was scraped of everything living.
This image is significant in that it was taken to see a temperature image of development against the natural green space. Bigger cities would be performing the same except on a bigger scale. This upscale neighborhood employs the latest in environmentally friendly technologies. The homes use geo thermal ground source energy for the heating and cooling except energy consumption depends on the building design temperatures. This development is designed, insulated and insured for a maximum temperature of 92 degrees F. The temperature outside is 71 degrees F, is the development fluctuating with atmospheric temperature?
Spot temperatures have been placed on the thermal image.
The development is twice atmospheric temperature and exceeding design temperatures in the morning. Due the indoor heat gain, portable air conditioning and other energy use is employed trying to cool the indoor temperature. Geo thermal isn’t being represented well.
DEVELOPMENT BESIDE ORCHARD
The next images were taken in May on a 70 degree F day. The picture shows an orchard beside a development. The orchard is considered a green space and would be our temperature objective for development. Put your mouse over the picture to see the temperatures associated with the area. Is the development generating heat atmospherically as well as heat the buildings aren’t designed, insulated or insured for?
Spot temperatures have been placed on the thermal image.
The heat generated by the development is twice the temperature of the orchard. The orchard has since been removed and there is a new development with an environmental name being built right now. The new construction finishes will generate more heat.
NEW HOUSING DEVELOPMENT
This new development is designed for a maximum of 92 degrees C and codes acknowledge there may be a few days where the temperature is slightly warmer. The temperature today is 94 degrees F and the development should be fluctuating with atmospheric temperatures. Look at the trees, grass, shade and green space compared to pavement and absorbent building finishes.
Spot temperatures have been placed on the thermal image.
Solar radiation with absorbent exterior finishes is generating extreme heat that exceeds the buildings design temperature. The building isn’t designed, insulated or insured for those extreme temperatures. We use air conditioning to react to a symptom. The heat generation atmospherically contributes to lower air pressure and changes the weather formula.
CUT BLOCK HEAT GENERATION
The cut block is an example of tree harvesting. You can see they have removed all of the trees and ground cover. Put your mouse over the next picture and see if there is solar impact by exposing the ground cover?
Spot temperatures have been placed on the thermal image.
Removing complete ground cover is generating heat in the cutblock. The heat is over twice atmospheric temperature and a heat gain atmospherically. Pine Beetles have devastated 50,000 sq. miles of BC Forests and the response has been clear cutting. Look at the heat of the cut block and imagine the heat generation of 50,000 sq. miles of dead forested area. The extreme heat generation will contribute to lower air pressure and changes the weather formula for the globe.
SOLAR IMPACT ON BUILDINGS IN COLD WEATHER
Solar exposure is year round and we wanted to see the effect of solar impact in the colder seasons. The next image was taken in October on a 44 degree day at 10:30 A.M. You can see different building finishes and the shade of the tree on the building in the front. Put your mouse over the picture and see the effect of shade as well as the thermal performance of different building finishes.
Spot temperatures have been placed on the thermal image.
You can clearly see the effect and importance of shade if you are going to finish your building in absorbent paints or material. The part of the building that is shaded is still cooler than atmospheric temperature. Exposed absorbent finishes are generating heat that is warming the atmosphere.
SOLAR RADIATION IMPACT ON BUILDINGS IN WINTER
To complete the seasonal impact of solar exposure required imaging building exteriors in the winter. Building exteriors should be fluctuating with atmospheric temperatures so there isn’t a heat gain atmospherically. Radiated heat would contribute to low air pressure and change weather.
Pine Beetles have devastated 50,000 acres of BC forests costing billions of dollars in BC alone. Scientists say it is the loss of freeze thaw cycles that is leading to more beetle infestation. Our imaging in the winter was to see the impact of solar expose. Canada is further away from the sun and the angle is lower so the UV index is lower.
Spot temperatures have been placed on the thermal image.
The UV index is lower and this generated heat won’t require an air conditioning response. You can see the heat generated over the solar exposed side of the building versus the shaded side of the building. The building is generating over 140 degree F heat on a 48 degree day and contributes to low pressure changing weather.
MULTI FAMILY DWELLING
The next image is to show the thermal performance of brand new multi-family dwellings. Observe the solar exposed and shaded side temperatures.
Spot temperatures have been placed on the thermal image.
The siding and shingles are generating heat over 100 degrees F on a 48 degree day while the shaded side of the building shows the temperature without solar exposure. This is a heat gain atmospherically in the winter.
SOLAR EXPOSURE ON BUILDING FINISHES IN JUNE
The next images show 2 buildings on June 27, 2006. The one in the front is older and the one behind isn’t finished and has plywood on the exterior that will be covered with brown stucco. Observe the shade temperature and the piece of insulation that has been placed on the roof to see solar performance. The temperature at 10 AM is 84 degrees F; is the building fluctuating with atmospheric temperatures?
Spot temperatures have been placed on the thermal image.
The insulation and shade are cooler than atmospheric temperature while the solar exposed building material is generating 70 degrees F hotter than atmospheric temperature.
…
SUMMARY
Solar exposure is causing absorbent building exteriors to generate extreme heat the building isn’t designed, insulated or insured for. We are treating the symptoms with air conditioning, gigawatts of electricity waste, excessive GHG emissions including mercury, wasting non renewable resources and generating atmospheric heat close to boiling temperature.
Air conditioning is in fact refrigeration which is reported to deplete the ozone allowing more UV. We are using it in 100% of building applications in response to solar exposure.
California as well as other states and provinces are creating massive GHG emissions reacting to the symptoms while we blame the emissions on economy. During our information gathering, it was ironic to hear of the Governor of California meeting Branson, Tony Blair, environment groups, etc to discuss reducing emissions without losing economy. At the same time, California and other areas are producing massive GHG emissions as well as ozone depletion generating electricity to treat the symptoms of heat waves.
Canada and the world are calling for emission reduction immediately and the reality is we are installing air conditioning in every new building. It is impossible to develop effective policy when the science is lacking.
Environment Canada code for the reduction of refrigerants Environmental Code of Practice for Elimination of Fluorocarbon Emissions from Refrigeration and Air Conditioning Systems
Canadian Environment Minister Press Release in September, 2007. Canada Contributes to Major International Agreement to Protect the Ozone Layer and Tackle Climate Change
Heat impacts weather and we are generating extreme heat that in some cases reaches close to boiling temperature. That massive heat dump by every building in every city, state, province and country is unnaturally contributing to lowering air pressure which will change weather. Why are we worried about heat trapping gases in the atmosphere when we are generating heat close to boiling temperature on the surface of the planet?
EPA, METEOROLOGISTS AND ECONOMISTS MISSING TEMPERATURE DATA
It is assumed that buildings and development do not generate heat. Here is a link to information on urban heat islands from the EPA EPA on Urban Heat Islands!
Here is a link to a video clip from the Environmental Protection Agency (EPA) on Heat Island Effect EPA Video on Heat Island Effect.
We are reporting solar exposure as an unprecedented environmental emergency to authorities because we are treating the symptoms with ozone depletion, massive GHG emissions, electrical waste, acid rain, mercury emissions, etc. We are not discussing the extreme heat generated by buildings
Every state and city is looking for this information, they just couldn’t see it in a calculator. Here is a letter sent to the Western States & Provinces WESTERN CLIMATE INITIATIVE PARTNERS which include California, New Mexico, Oregon, Washington, Utah, Arizona, British Columbia and Manitoba telling them their buildings are exceeding their design temperature while they react to the symptoms with ozone depletion and massive GHG emissions. There has been no response to date while taxpayers are funding policy missing the required science.
The UN Meeting in Bali in 2007 missed critical data on climate change and building performance. Here is our press release.Press Release – UN MEETING IN BALI MISSING CRITICAL DATA ON CLIMATE CHANGE
I was looking at some similar infrared imagery recently, but from US tanks. Looking at footage from their infrared night sight cameras you can see towns in the distance, some over the horizon, glowing just as towns do due to streeplamps etc…at night. For me this is pretty conclusive evidence of a urban heat island effect that would create a localised warming effect regardless of sensor placement, and these were towns with limited power use, most the heat I imagine was simply what had been stored in buildings over the day being released.
There’s an important fifth reason for replacing your asphalt roof with a metal one (as I did): It reduces an earthquake’s impact on the structure, because of the large plywood plates that back it up and tie the rafters together (and which the roofing material strips additionally tie together). This prevents the house from getting out of square and pulling loose nails from the rafters, etc., which can lead to a falling dominoes situation. In California, houses with metal roofs get a 10% discount on earthquake insurance. (I noticed the reduced shaking in my house during the most recent earthquake it endured.)
Also, metal roofing reduces vulnerability to wildfires (where burning brands land on the roof).
This is already in use today. In desert areas you can freeze water in shallow open pans due to radiant cooling when the air temperature is above freezing. As a rule of thumb surfaces exposed to the open sky radiate enough heat to cool about 18-20 deg F below air temperature if they are shielded from radiant heat gain from other sources (like at night time) or in open shade like the north side of a building, and winds that warm the surface due to advection are minimal.
The apparent sky temperature is determined mostly by the local dew point.
http://www.ceen.unomaha.edu/solar/documents/SOL_29.pdf
This is one of the reasons that survival experts tell campers and hikers that are lost to shield themselves from the night sky if caught out over night. It can make a 10 deg F night feel like a -10 deg F night just by moving so out from under a sheltered over hang that blocks most of your view of the night sky.
A friend of mine who is a thermal control engineer for an aerospace company, told me that they use the following empirical formula to estimate the effective radiant temperature of the open sky to figure out heat loads for the payload while on the pad.
Tsky = 0.04114 x ( Tair deg R) ^1.5
Larry
The Navy SeaBees used that style of construction in the tropics in the late 1960’s. They would space a galvanized iron roof up off the main roof with 2×4’s standing on edge to create a 3 5/8 inch air space below the outer tin roof. The would leave the eve ends open and a gap at the roof peak creating a continuous convection flow between the exterior tin roof and the main roof, keeping the shaded roof essentially at ambient air temp.
Larry
Strikes me that if anybody has the wherewithall to develope a paint that absorbs energy/radiation at below, say 65F, and reflects energy/radiation at above, say 75F, they should make a fortune.
If you are successful make my cut 1% of sales please:-)
SpecialEd (00:50:18)
“The ground probably is not getting much radiation, but the vertical wall is catching direct sun.”
“Fun to watch the effect of a fast moving cloud shadow — the temperature drops substantially.”
That probably means you aren’t seeing the real temperature of an object, especially something like rocks or cement or asphalt, because they retain internal heat.
This looks mildly informative…
http://www.foamwyominggreen.com/research/research.aspx?researchtabs=2
Well the UHI effect manifests itself in climate reporting in different ways.
Indeed some of those unaccounted for heaters can change the recorded temperature; but the flony is compounded if those ersatz temperatures are then extended to other places remote form the hokey setup.
Asphalt may heat like crazy under direct sun; but at the same time that lovely black asphalt is radiating like crazy;a dn the hotter it gets the shorter the peak thermal spectrum wavelength gets, which means the less effective CO2 is in intercepting that radiation, and it gets better because water has a big absorption hole around 10 microns, so more of the surface emitted IR moves into that atmospheric window.
The only thing that is correctly modelling the climate effects of UHIs is that king of all climate modellers; Planet Earth; which exactly models all the pertinent physical effects,a dn always comes up with the correct answer.
George
It’s not surprising that trees and grass are much cooler than artificial building materials. They’ve evolved to make efficient use of solar energy, and waste heat is lost energy to them.
Thanks for the fascinating post. I wonder if it would be useful sometime to affix sensors all around the outside and inside of a MMTS enclosure at the level of the vents and take hourly readings for a 24-hour period and determine the directions of various heat/cooling sources at a site and their effects throughout the day. I think that would be telling. Perhaps this has been done before.
SpecialEd (00:50:18)
“The ground probably is not getting much radiation, but the vertical wall is catching direct sun.”
On closer examination, comparing it with a few other photos, the asphalt is about the same in all, and it is clearly hotter than the side of the house, except in the shade. But still, what do those temps tell us? If they only reflect the surface temp, and internal is lower, then they aren’t very informative. If there’s adequate insulation between the outside and in, the surface temp doesn’t give the whole picture. But for what AW is concerned about, it is very relevant.
@Allen63 (04:00:57) :
“Fun to watch the effect of a fast moving cloud shadow — the temperature drops substantially.”
So, does that mean you are only looking at the surface temp? If the inside were hot, the outside wouldn’t drop very fast unless heat transfer were slow, which would mean the material is a good insulator, and the inside probably didn’t get all that hot, even though the surface did? Look at the photo above that shows the pre-dawn view in which the concrete steps are still pretty hot from heat retained all night. Lower left, here…
http://www.thermoguy.com/images/before_sunrise_thermal.jpg
This looks mildly informative…?
http://www.foamwyominggreen.com/research/research.aspx?researchtabs=2
I see some other people were bothered by the term “generate heat” which a material that only radiates the energy it absorbs isn’t doing. Although since IronCowboy used the term “Summary, Building generate a whole lot of heat, kind of like an air-cooled lawnmower engine… but larger.”, I’m wondering if he’s talking about things like electric lighting and other real generators of heat, or if the term is also applied to radiating what’s been absorbed by the sun, as the author or the above paper seems to be using it?
[snip way off topic]
@D. Gallagher (09:31:54)
oops, this is the main one I wanted to draw attention to…
http://www.intellectualactivist.com/php-bin/news/showArticle.php?id=1100#Byline%201
It is amazing to see the dialog here and some of the skeptics over seeing temperature. This isn’t voodoo and I am not peddling thermography or materials. This is accurate temperature information and we have been tested and proven. It is accurate to +-2% and verifiable as well as traceable to specific pieces of equipment.
The Department of Fisheries and Oceans used our pilot study as the standard in their RFP for groundwater imaging. In normal thermal images or any reporting, there are scales to the side, the representation on the website is limiting.
The only reason this information hasn’t been brought to you sooner is because of an edited public inquiry into forest fire intensity when a forest fire raged through BC in 2003. Here is a link and a dumping superheated air atmospherically contributes to droughts and fire severity. http://www.thermoguy.com/forestfires.html
[snip waaayyyy off topic]
Well at least thermoguy didn’t come up with a new theory of evolution as well. I wonder what he’s like ordering a pizza?
“”” “generate heat” “””
Heat is a verb; NOT a noun, so you don’t generate it. It is a process of turning forms of energy into the kinetic energy of mechanical motion; usually at the atomic or molecular level.
[snip – way off topic]
Thermoguy,
…Huh?
I do not sell thermal imaging equipment, that is a separate area of expertise that I have to work with in each new imaging application. Be careful purchasing equipment from people not knowing how to use it themselves.
If the equipment manufacturers were doing a good job, this technology would be mainstream but it is the applications that exceed their expertise.
Please make the thermoman go away. He is scaring me…
@Loren Wilson (14:14:50) :
The pictures illustrate some aspects of the urban heat island very nicely.
I don’t mean to be attacking you, but there are some things I would change, if no one could convince me they weren’t wrong. For example, unless you are using the term “generate” by a convention I’m not familiar with, then the term is used incorrectly. Since Energy emitted is equal to, not greater than, energy absorbed, there is no “generation” of heat: solar energy “retained” locally as heat would seem to me to be more correct.
“This is accurate temperature information and we have been tested and proven. It is accurate to +-2% and verifiable as well as traceable to specific pieces of equipment.”
A lot of material at a low temperature can contain a lot more heat than a very small amount at a much higher temperature. Do you then try to quantify the heat as well, because temperature by itself isn’t enough information?
Hey, just look at this as practice for your presentation.
Anthony
It would improve your IR photos if you included a small area of temporary shadow (cardboard on a stick) in sunlit areas to differentiate emissivity from reflectivity.
[snip way off topic]
I’ve deleted and snipped some posts that wandered into areas of total irrelevance to IR photography, such as toxins and Obama’s politics
I’m not interested in these issues being discussed here. Please don’t post on them again.
Anthony
If my memory serves, this kind of thing was done in a Bond movie. Back at the Central British Secret Service Office, their sensors were picking up generated heat………never mind.
It seems that these instruments can be wonderful in the correct application. But because of the limitations of the technology, it would be very easy for someone to get the wrong idea from these FLIR cameras.
The reflection of the sun from the building onto the sensor’s housing at different angles and at different times of day could also cause problems. This reflectivity seems apparent in the first photo above, at the bottom left of the wall nearest the sensor.
It’s safer to just move the thermometers away from buildings as they should be.
Pam,
Was it in Die Another Day?
For one of the very few times in a Bond film, Zao’s Jaguar XKR is on par with James Bonds Aston Martin V12 Vanquish. While Bonds Aston Martin contains a variety of gadgetry, Zao takes the lead in his Jaguar that is fitted with a host of different weaponry.
In an exiting chase across the frozen wastes of Iceland, Bond and Zao battle it out in perhaps one of the best car chases seen in a Bond film.
Zao does battle with Bond using a THERMAL IMAGING SYSTEM allowing him to track the Aston Martin when its using its Adaptive Camouflage; this quickly malfunctions after Zao pumps rounds into the Aston using the Gattling Gun that pops up in the back of the car underneath a Jaguar seal. Armed with mini-missiles hidden under the front grille, rockets hidden in the doors and high explosive mortar bombs launched from the boot, Bond meets his match with the Jaguar XKR. The chase continues into Gustav Graves’ flooding ice palace, where it appears Bond is beaten when he is trapped high above in the palace. Using another feature of the Jaguar, Zao activates a metal ramming device, in a hope to send Bond’s Aston Martin flying into the lake below. However, Bond manages to activate the now restored Adaptive Camouflage, engage spikes in the Aston’s tyres for more traction and drives up the wall, sending Zao driving straight into the lake below.