Weather

You are currently browsing the archive for the Weather category.

Roll Cloud Event of 06/09/08:  Image captured at 8:22am CDT

Roll Cloud Event of 06/09/08: Image captured at 8:22am CDT

Following another very active night of strong to severe convection, a beautifully-defined roll cloud passed over northeast Kansas on the morning of Monday, 06/09/08. This roll cloud followed some thick, low-hanging stratus that had lingered behind the active overnight convection. As the stratus deck retreated to the east, this roll cloud became visible, stretching from the northern horizon all the way to the southern horizon just west of our location. As this roll cloud moved east, it briefly became particularly well-defined around 8:20am CDT as shown above before slowly losing the crisp, clear edges.

Several minutes later, I captured several more photographs from a better vantage point.

Roll Cloud Event of 06/09/08:  Image captured at 8:27am CDT

Roll Cloud Event of 06/09/08: Image captured at 8:27am CDT

Roll Cloud Event of 06/09/08:  Image captured at 8:27am CDT

Roll Cloud Event of 06/09/08: Image captured at 8:27am CDT. Additional signs of instability evidenced by the faint wave clouds in the upper left portion of the frame.

I then stitched together five frames using Canon’s PhotoStitch 3.1 software that came with the Canon 30D. This was my first attempt at using this software to compose a panoramic image from several still frames, so you’ll have to excuse the imperfections.

Roll Cloud Event of 06/09/08:  Composite image of 6 photographs taken at 8:27am CDT.  Click for much larger image.

Roll Cloud Event of 06/09/08: Composite image of 6 photographs taken at 8:27am CDT. Click for much larger image.

For more images, check out the full entry in the gallery: Roll Cloud Event of 06/09/08.

The claims against anthropogenic global warming skeptics are often the same: they’re all shills for big oil or other industry wishing to poke holes in the ‘consensus theory’ of global warming (which isn’t a consensus at all). Under the so-called “politicization of science” program, George Soros’ (the favorite fundraiser of many democrats) has reportedly given as much as $720,000 to Hansen to help package his alarmist claims and get them pushed by the mainstream media (The Soros Threat to Democracy):

How many people, for instance, know that James Hansen, a man billed as a lonely “NASA whistleblower” standing up to the mighty U.S. government, was really funded by Soros’ Open Society Institute , which gave him “legal and media advice”?

That’s right, Hansen was packaged for the media by Soros’ flagship “philanthropy,” by as much as $720,000, most likely under the OSI’s “politicization of science” program.

So he got some big paychecks from Soros - but was there a quid pro quo? The evidence certainly indicates as much:

That may have meant that Hansen had media flacks help him get on the evening news to push his agenda and lawyers pressuring officials to let him spout his supposedly “censored” spiel for weeks in the name of advancing the global warming agenda.

Hansen even succeeded, with public pressure from his nightly news performances, in forcing NASA to change its media policies to his advantage. Had Hansen’s OSI-funding been known, the public might have viewed the whole production differently. The outcome could have been different.

Did Soros’ funding pay off? You be the judge. Do a quick google search on James Hansen to read any of the thousands of mainstream media stories touting Hansen’s claims of censorship by the Bush administration. This wouldn’t be the first time credibility questions have been raised regarding Hansen and his alarmist claims [see “When does 1,400 Media Interviews = Muzzled” (03/20/07)].

[Update 12:51pm CDT]  This document pulled from the George Soros website devoted to his “Open Society Institute” admit his affiliation with James Hansen and his media blitz (see page 15):

…The Government Accountability Project, a whistleblower protection organization and OSI grantee, came to Hansen’s defense by providing legal and media advice.

But the alarmist’s favorite poster-boy James Hansen is hardly the only benefactor of Soros’ funding designed to get more media play for politicized topics important to the left - check out the full article for more on the non-disclosure disclosures regarding immigration and other big topics of the day.

This morning’s total lunar eclipse was a spectacular one, as viewed from northeast Kansas. The reddish-copper hues were much more vibrant than during the partial eclipse of 03/03/07.

While I was not able to document the full range of the eclipse from start to finish (it lasted several hours), I was able to grab a few shots during totality. First, an image of the full moon as seen the evening before (08/27/07) around 8:45pm CDT (click image for a larger view):

Full Moon on the evening of 08/27/07:  Canon 30D, 300mm, ISO 200, 1/125 sec @ f/5.6

The moon entered totality around 9:52 UTC (4:52 am local time). The first images I captured were around 10:35 (5:35am CDT) and the best images during totality were shot around 5:44am (click for a larger view):

Totality at 10:44 UTC (5:44am CDT): Canon 30D, 300mm, ISO 200, 2.5 sec, f/5.6

5:46am:

Totality at 10:44 UTC (5:44am CDT): Canon 30D, 300mm, ISO 200, 2.5 sec, f/5.6

By5:55am CDT even the western sky was just beginning to brighten as sunrise was looming at my back and the moon threatened to quickly be eclipsed by a neighbor’s roofline (click for a larger view):

Totality at 10:55 UTC (5:55am CDT): Canon 30D, 300mm, ISO 200, 4 sec, f/5.6

By 6am, we were ready to pull the camera in and venture out for our morning 4-mile run. I opted to leave the ipod at home this time and enjoy the serenity of the morning with the eclipsed moon guiding us out as we ventured westward for the start of our run. It actually provided surprisingly little light and was fading fast as it approached the foggy, hazy horizon, quickly losing contrast in the brightening sky.

It was a beautiful sight as the first rays of twilight began to brighten the eastern sky. Sunlight quickly seeped past the Earth, once again finding the moon. The moon quickly began returning it to its familiar bright yellow shades as it emerged from beneath the Earth’s shroud. The top of the moon was first to brighten and the rest quickly followed. As the moon set, it began to look much more like its familiar self, although it did not fully emerge from the eclipse until after it had dropped beneath the horizon in our location (just before 7am).

As was the case with the last eclipse photo shoot, I’m still not satisfied with my ability to manually focus the 300mm IS USM to infinity in low light (auto focus is no good in darnkess). I have since upgraded to a much better tripod (Bogen/Manfrotto Wilderness 3221) which was used this morning, although I haven’t put the cable release to work yet and probably should have. As you can see by the full moon photo, the lens is perfectly capable of a much clearer shot of even an eclipsed moon, but my ability to work the lens into the proper range has been elusive. Fortunately I only need to wait a few months for my next chance.

The calendar is already marked: Total Lunar Eclipse of February 21, 2008. For much more information, including many graphics friendly to even casual observers, check out the NASA Eclipse Page.

Even more spectacular than next year’s lunar eclipse will be the Total Solar Eclipse of 2017. It will be perfectly visible from Northeast Kansas… just ten years from this month. Check out the detailed path and other information regarding the eclipse of 2017 on a great new resource: NASA’s Google Earth Eclipse Mapping Page.

See more images from this event in the Notes In The Margin Gallery (here’s a direct link to the Lunar Eclipse of 08/28/07). For still more images - and many much more spectacular than those shown above, check out the invaluable SpaceWeather.com galleries for the Eclipse of 08/28/07.

In a matter of just a couple of weeks, a single, seemingly minor error in climate data calculations has spawned a heated discussion on the issue, leading to retractions of alarmist claims and corrections of global warming data by NASA and its prominent global warming alarmist James Hansen.

A prominent scientist in the global warming debate, Steve McIntyre has discovered that James Hansen’s NASA office made a mistake in how they applied a mathematical filter to several years of surface station temperature data from the USHCN data network between the years 2000-2006. This mistake had the effect of erroneously exaggerating surface temperature averages for the US during the period. Not only did that alter the data for those years, but also the analysis of surrounding years was forced into revision. The earlier widespread claims that 1998 was the hottest year on record for the US are now incorrect (it was 1934).

This issue has received very little mainstream media attention. A google news search for the terms “Global Warming GISS Error McIntyre” yields only 7 results as of 08/13/07. Ironically, the issue may be getting more play in McIntyre’s hometown of Toronto, Canada, as published in the Toronto Star today (Red Faces as NASA over Climate Change Blunder):

In the United States, the calendar year 1998 ranked as the hottest of them all – until someone checked the math.

After a Toronto skeptic tipped NASA this month to one flaw in its climate calculations, the U.S. agency ordered a full data review.

Days later, it put out a revised list of all-time hottest years. The Dust Bowl year of 1934 now ranks as hottest ever in the U.S. – not 1998.

More significantly, the agency reduced the mean U.S. “temperature anomalies” for the years 2000 to 2006 by 0.15 degrees Celsius.

NASA officials have dismissed the changes as trivial. Even the Canadian [McIntyre] who spotted the original flaw says the revisions are “not necessarily material to climate policy.”

You may remember Steve McIntyre as the one who called into question the reliability and robustness of the infamous, disputed Mann “Hockey Stick” global warming graph which I discussed earlier (The Impossibility of Prediction).

In discovering this surface station data error, Steve McIntyre has, in my view, shed light on a bigger question: how reliable is this data after all? If such an error could so easily have been overlooked, what other errors exist? What other implications are there to the changing environments of these data collecting stations?

Background

Early in 2007, the website surfacestations.org was born. The mission of surfacestations.org, as it states, is:

Via collaboration, creation of a publicly available photographic database of weather stations and weather station metadata.

Unstated in its mission, but nonetheless, a significant driving factor for the volunteers and editor of this database project, the website has brought to the attention of climatologists and meteorologists how questionable the environmental placement of the USHCN surface weather stations may be. From moving temperature sensors near airport runways an asphalt parking lots, to placing them within feet of massive air conditioner exhaust units, the changes in environmental conditions in the immediate vicinity of these data collection stations over the past century is evidenced by photographs of the stations. Check out some of these particularly odd and irregular placements. The eventual goal is to get as many stations as possible chronicled in the online database (it currently stands at around 23% as of 08/13/07). Not only is the current placement of such stations brought into question, the changes that have been made to the immediate environments of these stations during the period of time that data has been recorded from each site is also being analyzed.

(Note: In the months following the debut of surfacestations.org, NOAA abruptly and without notice removed a great deal of the station location information (latitude/longitude coordinates) from the once publicly-available database, hindering the work of surfacestation.org contributors who are seeking to document the environment and condition of these stations. NOAA has apparently done so under the guise of protecting the privacy of the volunteers who house these data collecting stations. If they are volunteering to collect and provide the data, they also volunteer that location information for public scientific scrutiny, in my view. Otherwise, this reeks of yet another attempt to silence the skeptics.)

An Error Discovered

A couple of weeks ago, the latest addition to the online surfacestations.org database was a surface observing station from Detroit Lakes, Minnesota. The graph of temperature data from this station showed a curious jump in the late 1990s:

detroit_lakes_gissplot.jpg

Along with the graph of the temperature data, a photograph of the station was added to the database, showing the proximity of the station to two large air conditioner exhaust units.

detroit_lakes_ushcn.jpg

Steve McIntyre and those involved in the surfacestations.org project recognized the instrument placement problems immediately. But this is nothing new - several other stations are placed in even more questionable locations. Many surfacestations.org readers became curious about that jump in the temperature record. Was it due to a change in the placement of such influencing factors as the AC units? A review of maintenance records from the site indicated the temperature jump did not coincide with the AC placement, so McIntyre delved deeper.

The temperature data is only valuable to the end that it correctly evidenced the discrete temperature of that exact location on earth during that point in time. This discussion is not about instrument error, it is about an error in analysis and application. Any analysis of the trends of such temperature data over time is worthless. There are no mathematical models, no computer simulation, no data extrapolation exercises, no manipulation what so ever that would allow one to statistically negate the effects of the changes in the immediate station environment as to allow the “true” trends of temperature data (independent of effects by such changes as the AC units) to be shown.

As discussed in several posts on McIntyre’s own blog, the NASA department responsible for the manipulation of surface temperature data does not make their methods publicly available. Surface station data must be adjusted to allow for analysis between stations and over time. Such changes include accounting for the time of day of each observation. If one station reports at 13:53 and another at 14:00 each day, those data points are not directly comparable without some sort of manipulation to negate that time difference. As such, McIntyre was forced to reverse-engineer NASA’s data correction methods. After doing so, he realized that the GISS office has erroneously applied their formula to the data from 2000-2006. The correction of this error resulted in a decrease in the calculated temperature anomalies of about 0.15 C. This may not sound like much, but in the world of climate analysis, just one tenth of a degree is very significant.

After contacting NASA about the error, Steve McIntyre discussed this process further in several blog postings. Over just a few days’ time, NASA quietly corrected the erroneous data online with no statement of correction applied to each data set. But these corrections had some significant impact on the global warming “leader-board”: The list of the hottest years in the US since records have been kept (a fraction of 1% of the time the US has existed, mind you), namely that 1998 is no longer considered the hottest year in the history of records. Other changes to the leader-board also took place (See the corrected list of temperature anomalies via NASA: Contiguous 48 U.S. Surface Air Temperature Anomoly (C))

James Hansen did take the time to respond directly to Steve McIntyre in a derogatory email (A Light On Upstairs?) but has made no other public statement on the issue.

There is no evidence that any attempt was made by NASA to contact those scientists who may have used such data in scientific analyses in the past. McIntyre discusses the changes to the data (absent any public statement on the issue) in Will the Real USHCN Data Please Stand Up). One is left to wonder how many previous climate change studies have been influenced by the erroneous data.

The Big Picture

This event brings several important points into the forefront:

  1. Why have such surface stations been granted validity in the scientific community when it comes to statistical analysis of climate data? A main tenet of even middle school science is that you can only change one variable at a time. Presumably, temperature is the variable being examined…one must not then change the environmental conditions immediately surrounding the equipment if one hopes to complete a robust analysis of large-area trends (admittedly, data will be applicable to an examination of the small-scale changes to the localized environment…but that is not what global climate change is about).
  2. How are such “correction” schemes applied to the data by NASA’s USHCN data set and others?
  3. Should such (unknown) data manipulation schemes be granted the status of “correcting” the climate data in a way that allows for detailed statistical analysis?
  4. If such statistical errors exist on this level, is it appropriate for social, political, and governmental policies to be shaped around such data?

Digg!

ice.jpgThe author offers a great opening abstract of his research:

The mud at the bottom of B.C. fjords reveals that solar output drives climate change - and that we should prepare now for dangerous global cooling

Earlier this year, I examined the connections between solar variability and climate change in great detail (On Solar Variability and Global Warming). Further research into the sunspot activity and terrestrial climate change is revealing some astounding correlations, as published recently by the Financial Times: Read the Sunspots. Written by R. Timothy Patterson, the chief researcher of the project, the article starts out by summarizing the well-known and universally-accepted variability of the Earth’s climate nicely:

Climate stability has never been a feature of planet Earth. The only constant about climate is change; it changes continually and, at times, quite rapidly. Many times in the past, temperatures were far higher than today, and occasionally, temperatures were colder. As recently as 6,000 years ago, it was about 3C warmer than now [ed. margin note: How did those stranded polar bears survive then?]. Ten thousand years ago, while the world was coming out of the thou-sand-year-long “Younger Dryas” cold episode, temperatures rose as much as 6C in a decade — 100 times faster than the past century’s 0.6C warming that has so upset environmentalists.

And then it tackles the solar variability issue. By measuring sediment, diatom and fish-scale records well-preserved in mud, the authors were able to track yet another climate proxy (be sure to read the full article text to understand the detailed analysis of the data that was completed). Via computerized analysis of the fossil record, scientists have been able to identify periods of warmer, abundant growth:

Specifically, we find a very strong and consistent 11-year cycle throughout the whole record in the sediments and diatom remains. This correlates closely to the well-known 11-year “Schwabe” sunspot cycle, during which the output of the sun varies by about 0.1%. Sunspots, violent storms on the surface of the sun, have the effect of increasing solar output, so, by counting the spots visible on the surface of our star, we have an indirect measure of its varying brightness. Such records have been kept for many centuries and match very well with the changes in marine productivity we are observing.

 

sunspotactivity.jpg

But one question constantly remained - the same core evidence that many doubters of the theory that climate change is driven by solar variability had claimed: the solar variability is not great enough to be the primary driver of terrestrial climate change:

…Even though the sun is brighter now than at any time in the past 8,000 years, the increase in direct solar input is not calculated to be sufficient to cause the past century’s modest warming on its own. There had to be an amplifier of some sort for the sun to be a primary driver of climate change.

Indeed, there must be another piece - some stronger force at work that could be responsible for terrestrial climate change. The correlation between solar variability and climate change has long-since been established, it is the causation that has been saught after in the current research - and it is exactly what they may have found (emphasis mine):

In a series of groundbreaking scientific papers starting in 2002, Veizer, Shaviv, Carslaw, and most recently Svensmark et al., have collectively demonstrated that as the output of the sun varies, and with it, our star’s protective solar wind, varying amounts of galactic cosmic rays from deep space are able to enter our solar system and penetrate the Earth’s atmosphere. These cosmic rays enhance cloud formation which, overall, has a cooling effect on the planet. When the sun’s energy output is greater, not only does the Earth warm slightly due to direct solar heating, but the stronger solar wind generated during these “high sun” periods blocks many of the cosmic rays from entering our atmosphere. Cloud cover decreases and the Earth warms still more.

The opposite occurs when the sun is less bright. More cosmic rays are able to get through to Earth’s atmosphere, more clouds form, and the planet cools more than would otherwise be the case due to direct solar effects alone. This is precisely what happened from the middle of the 17th century into the early 18th century, when the solar energy input to our atmosphere, as indicated by the number of sunspots, was at a minimum and the planet was stuck in the Little Ice Age. These new findings suggest that changes in the output of the sun caused the most recent climate change. By comparison, CO2 variations show little correlation with our planet’s climate on long, medium and even short time scales.

As a footnote, a message to those who belief Global Warming is a no longer up for debate (emphasis mine):

In some fields the science is indeed “settled.” For example, plate tectonics, once highly controversial, is now so well-established that we rarely see papers on the subject at all. But the science of global climate change is still in its infancy, with many thousands of papers published every year. In a 2003 poll conducted by German environmental researchers Dennis Bray and Hans von Storch, two-thirds of more than 530 climate scientists from 27 countries surveyed did not believe that “the current state of scientific knowledge is developed well enough to allow for a reasonable assessment of the effects of greenhouse gases.” About half of those polled stated that the science of climate change was not sufficiently settled to pass the issue over to policymakers at all.

An impressive research project indeed…we can only wait and see if it gets the time of day from the global-warming-alarmist-obsessed mainstream media.

_________________

Previous:

« Older entries

Get Email Updates

Enter your email address:

  • Blogroll

  •