tag:blogger.com,1999:blog-16612221.post2816110537259926245..comments2024-03-19T03:14:04.172-04:00Comments on Rabett Run: EliRabetthttp://www.blogger.com/profile/07957002964638398767noreply@blogger.comBlogger18125tag:blogger.com,1999:blog-16612221.post-60185149885732581592007-06-26T22:42:00.000-04:002007-06-26T22:42:00.000-04:00Google is your friend. climate trace gases team me...Google is your friend.<BR/><BR/><A HREF="http://www.ncdc.noaa.gov/oa/climate/research/2003/jul/global.html" REL="nofollow"> climate</A><BR/><BR/><A HREF="http://www-airs.jpl.nasa.gov/Documents/TraceGas/" REL="nofollow"> trace gases</A><BR/><BR/><A HREF="http://www-airs.jpl.nasa.gov/Science/ResearcherResources/MeetingArchives/" REL="nofollow"> team meeting presentations</A> drill down.EliRabetthttps://www.blogger.com/profile/07957002964638398767noreply@blogger.comtag:blogger.com,1999:blog-16612221.post-50661569178758800822007-06-26T19:16:00.000-04:002007-06-26T19:16:00.000-04:00So the entire scale of the color map is about 16 o...So the entire scale of the color map is about 16 or 17PPM. What is the accuracy of the measurement itself? Also, I would imagine that at 26K feet, most of what you are measuring must be from hundreds of miles uprange. How, then, do you explain these readings? What was the synoptic pattern at the time of measurement?Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-16612221.post-20105001986913901312007-06-26T01:37:00.000-04:002007-06-26T01:37:00.000-04:00If memory serves, the intermountain (that is, betw...If memory serves, the intermountain (that is, between the rockies and the sierra nevadas west in the US is disproportionately coal-powered, has a high proportion of truck and train shipping, and relatively high vehicle-miles per person.llewellyhttps://www.blogger.com/profile/16001213921499191213noreply@blogger.comtag:blogger.com,1999:blog-16612221.post-30366484543667093842007-06-25T11:26:00.000-04:002007-06-25T11:26:00.000-04:00After some more searching...Perhaps fires were the...After some more searching...<BR/><BR/>Perhaps fires were the source after all.<BR/><BR/>This link talks about the mediteranean area<BR/>http://www.agu.org/pubs/crossref/2005/2005JD005986.shtml<BR/><BR/>and this one talks abou tthe link between global warming and increased fire in the western US.<BR/><BR/>http://www.eurekalert.org/pub_releases/2006-07/uoa-mlf063006.phpAnonymousnoreply@blogger.comtag:blogger.com,1999:blog-16612221.post-81461055151308759822007-06-25T11:01:00.000-04:002007-06-25T11:01:00.000-04:00The pattern for the western US might be consistent...The pattern for the western US <I>might</I> be consistent with fires -- though there are also a lot of power plants located in the Intermountain West, but I'd guess that the pattern along the eastern seaboard is probably not due to fires. Much more likely to be related to emissions from power plants.<BR/><BR/>I don't know about the pattern in Europe, but I expect it is also more likely not due to fires.<BR/><BR/>As has been pointed out above, the pattern does not match the source because the sources are lower than the sampling elevation and the CO2 gets moved around by prevailing winds so by the time it gets high enough to be sampled, it is no longer above the point of emission.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-16612221.post-33900015135777648952007-06-25T08:15:00.000-04:002007-06-25T08:15:00.000-04:00The map reflects the sinks too. Notice lower conce...The map reflects the sinks too. Notice lower concentrations east of the Mississippi and the Pacific NW, where there are expansive forests. <BR/><BR/>Keep in mind, when I write about "emissions intensity", I'm referring to emissions/GDP. Even if the map showed the same level emissions (ignored sinks for a moment) from China, as from the US, the emissions/GDP is still much lower in China. Right now, at least, North America's economy is more carbon efficient (more GDP per ton of GHG emissions).Simon Donnerhttps://www.blogger.com/profile/01844831377442275615noreply@blogger.comtag:blogger.com,1999:blog-16612221.post-79770120040988250852007-06-24T18:34:00.000-04:002007-06-24T18:34:00.000-04:00I can understand forest fires having some importan...I can understand forest fires having some importance in some parts of the world, but not right across the mediteranean and Atlantic oceans, Italy, Iran and into central Asia, including what looks like the Gobi desert.<BR/>Certainly the data here is of limited usefulness.guthriehttps://www.blogger.com/profile/17992984293423290387noreply@blogger.comtag:blogger.com,1999:blog-16612221.post-77833641813425625112007-06-24T18:29:00.000-04:002007-06-24T18:29:00.000-04:00There are - of course - a lot of caveats in sattel...There are - of course - a lot of caveats in sattelite based CO2 observations. Because if there weren't we should already have them available. The biggest caveat is that a CO2 spectrometer cannot see through clouds, and that the small annual human imprint - in particular on land - is overwhelmed by the natural annual co2 variabiliy, which has to be modeled and substracted.<BR/><BR/>The 8 km altitude CO2 image thus shows predominantly the result of mixing in the hadley cell, which in july is already al lot of forest fires.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-16612221.post-87516659580931166942007-06-24T17:09:00.000-04:002007-06-24T17:09:00.000-04:00My, my, my.our heroes are finally getting outed by...My, my, my.<BR/><BR/>our heroes are finally getting outed by the media -- even if not the mainstream media.<BR/><BR/><A HREF="http://www.rollingstone.com/politics/story/15148655/the_secret_campaign_of_president_bushs_administration_to_deny_global_warming/1" REL="nofollow">The Secret Campaign of President Bush's Administration to Deny Global Warming<BR/> By Tim Dickinson<BR/> Rolling Stone</A><BR/><BR/>I love how Whitman is now implying she stood up to Cheney and the rest. These people have no shame. They are absolutely pathetic.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-16612221.post-12232979325824148422007-06-24T04:44:00.000-04:002007-06-24T04:44:00.000-04:00Anonymous 7:19- I thought that as well, then some ...Anonymous 7:19- I thought that as well, then some googling suggested that the Jet stream was higher up, but that there were winds and suchlike moving things around at the 8km height. So I suspect it is a mixture of various winds including the jet stream, but precisely what I do not know.guthriehttps://www.blogger.com/profile/17992984293423290387noreply@blogger.comtag:blogger.com,1999:blog-16612221.post-33399093828788648452007-06-24T01:26:00.000-04:002007-06-24T01:26:00.000-04:00Eli,I love that map but wish I understood it bette...Eli,<BR/><BR/>I love that map but wish I understood it better. As Prof R. himself instructed me in the ways of lowtran, he no doubt knows that CO2 is very opague where it is opague, and consequently it takes a careful choice of frequencies to probe very far down in the atmosphere. It would be nice to know what the contribution fucntions of the available lines looked like so we could tell at what height that CO2 really is.<BR/><BR/>Is it a little odd that the strongest CO2 emissions are so far displaced from their apparent sources? Clearly, prevailing weather and climate have an influence. It's actually not obvious that China is a weaker emitter than the US, and most estimates say it isn't. There is more than one such oddity - why, for example, does Brasil not seem to be emitting anything? Is the rainforest an explanation or is it just the global circulation pattern? I'm going to guess that the latter is more important.CapitalistImperialistPighttps://www.blogger.com/profile/17523405806602731435noreply@blogger.comtag:blogger.com,1999:blog-16612221.post-55974735864783963392007-06-23T22:19:00.000-04:002007-06-23T22:19:00.000-04:00It looks like it may be following the jet stream.It looks like it may be following the <A HREF="http://www.wunderground.com/global/EU_2xJT_Index.html" REL="nofollow">jet stream</A>.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-16612221.post-88093186192494869322007-06-23T16:22:00.000-04:002007-06-23T16:22:00.000-04:00Why appear the CO2 levels to be higher over southe...Why appear the CO2 levels to be higher over southern Europe and the Middle east? I would expect Northern Europe to be more industrialised.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-16612221.post-37847535902992670192007-06-23T16:07:00.000-04:002007-06-23T16:07:00.000-04:00I assume that the bands of higher concentration ar...I assume that the bands of higher concentration around the world are due to Co2 from industrial and densely populated areas being entrained into the air that moves around in those areas?guthriehttps://www.blogger.com/profile/17992984293423290387noreply@blogger.comtag:blogger.com,1999:blog-16612221.post-53462726759658224282007-06-23T11:42:00.000-04:002007-06-23T11:42:00.000-04:00In my previous comment, I meant 'AiRS', rather tha...In my previous comment, I meant 'AiRS', rather than 'AIRES' .llewellyhttps://www.blogger.com/profile/16001213921499191213noreply@blogger.comtag:blogger.com,1999:blog-16612221.post-20666596956071348852007-06-23T11:41:00.000-04:002007-06-23T11:41:00.000-04:00Thank you. I suspected something of the sort (havi...Thank you. I suspected something of the sort (having misread plenty of pictures myself). As for pressure, I think that is better only if the detection method itself is pressure dependent - that is, if the method used to extract co2 data from AIRES data works only over a range of pressures (which seems likely, but I can't seem to find any statement of this), then then it would be ideal to give the range of pressures. But if the method is only dependent on absolute altitude, altitude would be ideal.llewellyhttps://www.blogger.com/profile/16001213921499191213noreply@blogger.comtag:blogger.com,1999:blog-16612221.post-11467564859348350482007-06-23T11:26:00.000-04:002007-06-23T11:26:00.000-04:00Because, as you correctly point out, Rabetts don't...Because, as you correctly point out, Rabetts don't read. I had just gone through a bunch of information on the measurments and mid-trop was in my head, and mid-trop is a range, 5 km included and often used. There is also the issue that the height of the troposphere varies with latitude, so it would technically be better to use a pressure , e.b. 500 hPa, but that is just an excuse. My bad. It has been corrected.EliRabetthttps://www.blogger.com/profile/07957002964638398767noreply@blogger.comtag:blogger.com,1999:blog-16612221.post-40674320034992490582007-06-23T08:42:00.000-04:002007-06-23T08:42:00.000-04:00Why do you say 5km in your text while it says 8km ...Why do you say 5km in your text while it says 8km in the picture, and also in the linked NASA article?llewellyhttps://www.blogger.com/profile/16001213921499191213noreply@blogger.com