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"James" wrote in :
"Prosecute Killer Koch Bros for Global Warming Deaths" wrote in message . 17.102... "James" wrote in : "Roger Coppock" wrote in message ups.com... James wrote: Prior to the first satellite that looked at this stuff sometime in the 70s, many storms went unnoticed. Yes. When I looked at hurricane data I also found increases at about the time ships gave up sail power, and another near the time when ships started carrying radio. That's a problem to be sure, but I don't think it's the major one here. According to what I have read, models do not show increasing hurricanes for another half-century or so. I think everyone is counting hurricanes before they're hatched. This business about increasing strengths, is tricky to model and hard to measure, so the claims are hard to verify. Put me in the doubters camp on this issue, at least for about another two decades. How about a few more decades. To compare 1995 - 2005 is a bit much comparing the period the 1950 -1960 don't you think? "The North Atlantic data clearly show that - in the last decade (since 1995) relative to the decade centered around 1950 (previous peak period) - there are 50% more named storms, 50% more hurricanes, and 50% more category 4 and 5 storms. Science anybody can do themselves -- No Spin, No Experts Required COMPARISON: 1950-1959 versus 1996-2005 Hurricane season intensity compared to average from 1851-2005 The 1950s was the second most violent hurricane decade ever in the records which go back to the California Gold Rush time period. This data is a comparison to the 2nd most violent ten years to this current ten years supreme violence of weather... Location of Source Data: http://tinyurl.com/7q4xp 1851-2002 Wikipedia 2003-2005 For brevity sake, abbreviations are used: TS = Tropical Storm C1 = Hurricane Category 1, C2 = Hurricane Category 2 C3, C4, C5 = Major Hurricanes Category 3, 4 & 5 respectively. The Violent NEW-ERA Storms Record The 10-year stretch from 1996-2005 Stats: 1996 : TS=4, C1=3, C2=0, C3=4, C4=2 1997 : TS=5, C1=1, C2=0, C3=1, C4=0 1998 : TS=4, C1=3, C2=4, C3=1, C4=1, C5=1 1999 : TS=4, C1=0, C2=3, C3=0, C4=5 2000 : TS=7, C1=5, C2=0, C3=1, C4=2 2001 : TS=6, C1=5, C2=0, C3=2, C4=2 2002 : TS=8, C1=1, C2=1, C3=1, C4=1 2003 : TS=9, C1=3, C2=1, C3=2, C4=0, C5=1 2004 : TS=5, C1=1, C2=1, C3=2, C4=3, C5=1 2005 : TS=13, C1=7, C2=1, C3=2, C4=1, C5=4 -------------------------------------------------------------------- Totals TS= 4+5+4+4+7+6+8+9+5+13= 65 Tropical Storms Totals C1= 3+1+3+0+5+5+1+3+1+7 = 29 Hurricanes Category 1 Totals C2= 0+0+4+3+0+0+1+1+1+1 = 11 Hurricanes Category 2 Totals C3= 4+1+1+0+1+2+1+2+2+2 = 16 Major Hurricanes Category 3 Totals C4= 2+0+1+5+2+2+1+0+3+1 = 17 Major Hurricanes Category 4 Totals C5= 0+0+1+0+0+0+0+1+1+4 = 7 Major Hurricanes Category 5 ==== 1851-2005 ======= Total # of TS = 538 Tropical Storms. Total # of C1 = 307 Hurricanes Category 1 Total # of C2 = 208 Hurricanes Category 2 Total # of C3 = 169 Major Hurricanes Category 3 Total # of C4 = 91 Major Hurricanes Category 4 Total # of C5 = 30 Major Hurricanes Category 5 = 1,343 Storms Totals OLD-ERA plus NEW-ERA Hurricane Regimes. ====================== Statistical frequency 1851-2005 (154 years): NEW+OLD ERA 8.7 storms per year average, 87 storms per ten year-sequence. TS = 3.49 per year, 35 per 10-years C1 = 1.99 per year, 20 per 10-years C2 = 1.35 per year, 13.5 per 10-years C3 = 1.1 per year, 11 per 10-years C4 = 0.59 per year, 6 per 10-years C5 = 0.19 per year, 1.9 per 10-years ====================== Compare 1950-1959, the second most violent weather period on record: 1950 : TS=2, C1=0, C2=2, C3=5, C4=2, C5=1 1951 : TS=2, C1=2, C2=1, C3=3, C4=1, C5=1 1952 : TS=1, C1=1, C2=2, C3=2, C4=1 1953 : TS=8, C1=1, C2=1, C3=3, C4=1 1954 : TS=3, C1=3, C2=3, C3=1, C4=1 1955 : TS=3, C1=1, C2=2, C3=4, C4=1, C5=1 1956 : TS=5, C1=1, C2=0, C3=1, C4=1 1957 : TS=5, C1=1, C2=0, C3=0, C4=2 1958 : TS=3, C1=2, C3=3, C4=1, C5=1 1959 : TS=4, C1=5, C2=0, C3=1, C4=1 TS= 2+2+1+8+3+3+5+5+3+4= 35 Tropical Storms C1= 0+2+1+1+3+1+1+1+2+5= 17 Hurricanes Category 1 C2= 2+1+2+1+3+2+0+0+3+0= 14 Hurricanes Category 2 C3= 5+3+2+3+1+4+1+0+1+1= 21 Major Hurricanes Category 3 C4= 2+1+1+1+1+1+1+2+1+1= 12 Major Hurricanes Category 4 C5= 1+1+0+0+0+1+0+0+0+0= 3 Major Hurricanes Category 5 ================================================== 35 Average for record for ten years TROPICAL STORMS 35 total for 1950-1959 TROPICAL STORMS (1950s = normal) 65 total for 1996-2005 TROPICAL STORMS (Now nearly doubled) 19.7 Annual Average for record for ten years HURRICANES Category 1 17 total 1950-1959 HURRICANES Category 1 (1950s below normal) 29 total 1996-2005 HURRICANES Category 1 (Now 50% higher) 13.5 Annual Average for record for ten years HURRICANES Category 2 14 total 1950-1959 HURRICANES Category 2 (1950s up slightly) 11 total 1996-2005 HURRICANES Category 2 (Now down slightly) 10.7 Annual Average for record for ten years MAJOR HURRICANES Category 3 21 Total 1950-1959 MAJOR HURRICANES Category 3 (1950s double normal) 16 Total 1996-2005 MAJOR HURRICANES Category 3 (Now up 60%) 5.8 Annual Average for record for ten years MAJOR HURRICANES Category 4 12 total 1950-1959 MAJOR HURRICANES Category 4 (1950s double normal) 17 total 1996-2005 MAJOR HURRICANES Category 4 (Now triple) 1.4 Annual Average for record for ten years MAJOR HURRICANES Category 5 3 total 1950-1959 MAJOR HURRICANES Category 5 (1950s double normal) 7 total 1996-2005 MAJOR HURRICANES Category 5 (Now almost quadruple) 87.2 Average total storms for record over ten years 1851-2005 102 total storms 1950-1959 (17% More Storms than record-average for 10-years) 138. total storms 1996-2005 (58% More Storms than record-average for 10-years) NOW 35% MORE Total Storms than 1950s in recent decade. 33.4 Total Weak Hurricanes (under 110 mph) per decade average of record. 31 Weak Hurricanes (under 110 mph) 1950-1959 40 Weak Hurricanes (under 110 mph) 1996-2005 NOW 29% MORE Weak Hurricanes than 1950s in recent decade 18.8 MAJOR HURRICANES (Over 110 mph) per decade average of record. 36 MAJOR HURRICANES (Over 110 mph) 1950-1959 40 MAJOR HURRICANES (Over 110 mph) 1996-2005 NOW 11% MORE MAJOR HURRICANES than 1950s in recent decade. |
#12
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In article , "James" wrote:
"Roger Coppock" wrote in message roups.com... From :http://www.earthsky.org/features/Sci...nesWarming.php Experts respond to questions challenging link between global warming and hurricanes (July 28, 2006) A research meteorologist at the National Hurricane Center today challenged a proposed link between global warming and hurricane intensity, which had been reported earlier by other hurricane researchers. Two other hurricane scientists - whose research indicates this link does exist, and that global warming is already causing stronger hurricanes - have now responded. Chris Landsea Research meteorologist Chris Landsea called the existing data on hurricanes "insufficently reliable" to be able to detect a connection between global warming and the appearance of more intense hurricanes in recent years. Landsea wrote in the July 28, 2006 edition of Science, in a section of the journal called "Perspectives." In his remarks, Landsea questioned the objectivity of what's called the Dvorak Technique, a method of estimating tropical cyclone intensity using satellite imagery. "It is common for different forecasters and agencies to estimate significantly different intensities on the basis of identical information," Landsea wrote. He wrote that data solely relying on satellites showed "artificial upward trends in intensity," and that data inconsistencies cast "severe doubts on any such trend linkages to global warming." Judith Curry Meanwhile, Judith Curry - a climate scientist at the Georgia Institute of Technology, who recently testified before a U.S. congressional committee on the subject of hurricanes and global warming - told Earth & Sky, "Landsea's 'article' is commentary, not a peer reviewed article." She said, "The North Atlantic data clearly show that - in the last decade (since 1995) relative to the decade centered around 1950 (previous peak period) - there are 50% more named storms, 50% more hurricanes, and 50% more category 4 and 5 storms. "WIth regard to the global data since 1970 ... there have been variations with time in how the data has been processed. There is anecdotal evidence that some storms have been misclassified (some classified to high and some too low). "However, at this point, no one has done a rigorous error or uncertainty analysis on the data, so in my opinion Landsea's statements about the trends are not supported." Kevin Trenberth Kevin Trenberth - head of the Climate Analysis Section at the National Center for Atmospheric Research - told Earth & Sky, "There are still good reasons to believe that hurricanes have become more intense, and that this trend will continue." He said, "The data on sea surface temperatures, and on water vapor in the atmosphere, are sound. Sea temperatures have risen. Water vapor has increased about 4% since 1970 over the oceans. "This is fuel for storms, including the extratropical storms that caused floods in New England earlier this year and in Washington D.C. this summer. "There is no question about the changes of huge increases in intensity and duration of storms, as found by Kerry Emanuel. For Landsea to suggest otherwise has no credence. "Moreover, as we have published, this is associated with increases in sea surface temperatures and that is mostly caused by global warming, not natural variability," he concluded. Tom Knutson Tom Knutson of NOAA's Geophysical Fluid Dynamics Lab also weighed in. In an email to Earth & Sky, he said, " I would not claim to have the expertise to decide who is closer to the truth in this particular debate at this point." He continued, "The issue of data homogeneity is a very legitimate and important question to raise concerning the issue of possible long-term trends in hurricane activity." Prior to the first satellite that looked at this stuff sometime in the 70s, many storms went unnoticed. Which is why the studies all start from the 70s. |
#13
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Roger Coppock wrote:
From :http://www.earthsky.org/features/Sci...nesWarming.php Experts respond to questions challenging link between global warming and hurricanes Now we read on with the certain knowledge that everything is true because they have been labeled "experts", as opposed to those who are "challenging" that "link", right? Only we know that "expert" is an acronym for 'A has been drip under pressure', don't we :-) (July 28, 2006) A research meteorologist at the National Hurricane Center today challenged a proposed link between global warming and hurricane intensity, which had been reported earlier by other hurricane researchers. Ah, a mere "research meteorologist", a weather man, like those seen on telly that does similar work like a junior filing clerk in an office. Right got that! Two other hurricane scientists - whose research indicates this link does exist, and that global warming is already causing stronger hurricanes - have now responded. But now we have real "hurricane scientists", and not mere petty dog's body of a weather man! Who-hoo, better look out and cower meekly under a desk, the big guns are being brought in! Well at least the scene has been properly set for what follows. Chris Landsea Research meteorologist This all part of that appeal to authority nonsense, where the "authority" or qualifications, and therefor ability, is being belittled by minimising the "title" of the person. It is illogical and unscientific, but often used in place of science. Chris Landsea called the existing data on hurricanes "insufficently reliable" to be able to detect a connection between global warming and the appearance of more intense hurricanes in recent years. Landsea wrote in the July 28, 2006 edition of Science, in a section of the journal called "Perspectives." In his remarks, Landsea questioned the objectivity of what's called the Dvorak Technique, a method of estimating tropical cyclone intensity using satellite imagery. "It is common for different forecasters and agencies to estimate significantly different intensities on the basis of identical information," Landsea wrote. He wrote that data solely relying on satellites showed "artificial upward trends in intensity," and that data inconsistencies cast "severe doubts on any such trend linkages to global warming." Seems to me to be valid points. Judith Curry Meanwhile, Judith Curry - a climate scientist at the Georgia Institute of Technology, who recently testified before a U.S. congressional Oh but it must be a really important person, hell this Judy female (probably a feminist to boot) even testified before a US congressional "committee". Now that makes everything she say absolutely true and true twice over perhaps! committee on the subject of hurricanes and global warming - told Earth & Sky, "Landsea's 'article' is commentary, not a peer reviewed article." Hang on that is one of the oldest cop-outs there is. Does the female claim it is "not true"? Hell no! She didn't have an opportunity to poo-poo it before it was published, is what she says. Nothing at all about the actual issues being dealt with. It is merely a petty dummy spit from her. She said, "The North Atlantic data clearly show that - in the last decade (since 1995) relative to the decade centered around 1950 (previous peak period) - there are 50% more named storms, 50% more hurricanes, and 50% more category 4 and 5 storms. Opppppsss..... here we have to remember that the article where she states this "not a peer reviewed article"! Then according to her on dummy spit, it is meaning less and should be disregarded! What's good for the goose... and all that jazz. NOTE also the following: "North Atlantic" is not "tropical" and therefor it is not a relevant comparison. "named storms" - is a reference to cyclones as they get named but are not the same as "tropical storms". "decade centered around 1950", there was no satellite data available to run a comparison with. "there are 50% more NAMED STORMS" (emphasis is mine). This is what is know as 'weasel words', it is using an "argument" that storms not name don't count and are therefor not counted. A "hurricane" is a British term for a very large pressure system with strong winds - not the same at all as a "tropical storm", and in any event Britain is hardly in the "tropics". "WIth regard to the global data since 1970 ... there have been variations with time in how the data has been processed. There is anecdotal evidence that some storms have been misclassified (some classified to high and some too low). The "variations with time in how the data has been processed" supports Landsea's comments. "anecdotal evidence" isn't worth a gnats fart scientifically, however it goes to point toward a suspicion that the data since 1970 has not been accurate - supporting Landsea. "However, at this point, no one has done a rigorous error or uncertainty analysis on the data, so in my opinion Landsea's statements about the trends are not supported." Oh dear. Talk about speaking pout of the wrong orifice! She has supported Landsea's comments, and then she goes and makes that claim! Talk about a real "drip under pressure"! Kevin Trenberth Kevin Trenberth - head of the Climate Analysis Section at the National Center for Atmospheric Research Ahh, isn't that nice, another lead in with an appeal to authority, this time called "head of..blah blah.." or to put it another way, a meteorologist! Why say anything more? The "authority" has been pumped up so much that reason, science and sound logic is no longer necessary. Just "believe" the deity! - told Earth & Sky, "There are still good reasons to believe that hurricanes have become more intense, and that this trend will continue." Yes there it is, the operative word "believe", no facts required! He said, "The data on sea surface temperatures, and on water vapor in the atmosphere, are sound. Sea temperatures have risen. Water vapor has increased about 4% since 1970 over the oceans." BULL! The date referred to by Judy was for the 'North Atlantic" and that is where the gulf stream is. Professor Bryden said: "In previous studies over the last 50 years the overturning circulation and heat transport across 25°N were reasonably constant. We were surprised that the circulation in 2004 was so different from previous estimates." They have records from 1957, 1981, 1992 and 1998 to use as comparison. http://www.soc.soton.ac.uk/index.php...y_news&idx=303 Naturally we just have to "believe" the 4% from the, oh so mighty, "head of.." whatever it was! "This is fuel for storms, including the extratropical storms that caused floods in New England earlier this year and in Washington D.C. this summer. A single instance "this summer" is not evidence of anything other that it happened and then it is totally subjective and useless for anything scientific. "There is no question about the changes of huge increases in intensity and duration of storms, as found by Kerry Emanuel. For Landsea to suggest otherwise has no credence. Of course we have to remember the "authority" Judy, who points out that something not "peer reviewed" is worthless and this article according to that "authority" is therefore worthless as is all that by the "head of..." whatever. "Moreover, as we have published, this is associated with increases in sea surface temperatures and that is mostly caused by global warming, not natural variability," he concluded. ....and has we have seen the "sea surface temperature" as decreased recently and should therefor show a DECLINE of "tropical storms" in the non tropics. Tom Knutson Tom Knutson of NOAA's Geophysical Fluid Dynamics Lab also weighed in. In an email to Earth & Sky, he said, " I would not claim to have the expertise to decide who is closer to the truth in this particular debate at this point." He continued, "The issue of data homogeneity is a very legitimate and important question to raise concerning the issue of possible long-term trends in hurricane activity." And that is about the sanest bit of commentary I have seen in the article other than from Landsea! Fact is that data over such a short term as 30 years is practically useless for anything other than storing for the future. It cannot tell of any "trend" toward global warming. Specially not when there is no sane reference point to compare it with. Secondly the article is obviously written by a member of a GW religious sect. It is biased to hell. I have shown the absurdity of many writers when they push their own barrow. This article is worthless for anything at all. Tom Knutson puts it well. Be critical of what you read! |
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