tag:blogger.com,1999:blog-7729093380675162051.post4891473518186449981..comments2024-03-28T13:56:47.604+11:00Comments on moyhu: GISS up by 0.06°C in AugustNick Stokeshttp://www.blogger.com/profile/06377413236983002873noreply@blogger.comBlogger8125tag:blogger.com,1999:blog-7729093380675162051.post-83586562903179673252015-09-21T01:58:45.635+10:002015-09-21T01:58:45.635+10:00OT: Nick's number for September so far is .367...OT: Nick's number for September so far is .367! Holy cow. JCHnoreply@blogger.comtag:blogger.com,1999:blog-7729093380675162051.post-37892824731426543402015-09-14T23:50:53.080+10:002015-09-14T23:50:53.080+10:00That's the warmest monthly anomaly ever at JMA...That's the warmest monthly anomaly ever at JMA, beating "old" Feb 1998 by 0.02. It's the warmest summer and seasonal anomaly as well...Olof Rhttps://www.blogger.com/profile/18244733455655978307noreply@blogger.comtag:blogger.com,1999:blog-7729093380675162051.post-6073227658960410802015-09-14T23:12:10.235+10:002015-09-14T23:12:10.235+10:00JMA August anomaly is massive http://ds.data.jma.g...JMA August anomaly is massive http://ds.data.jma.go.jp/tcc/tcc/products/gwp/temp/fig/aug_wld.pngClimfroghttps://www.blogger.com/profile/15174047942108246611noreply@blogger.comtag:blogger.com,1999:blog-7729093380675162051.post-30535160391487152662015-09-14T22:46:17.736+10:002015-09-14T22:46:17.736+10:00JMA is in. Up 0.07 from July. Record from last yea...JMA is in. Up 0.07 from July. Record from last year crushed by 0.12 deg.ehaknoreply@blogger.comtag:blogger.com,1999:blog-7729093380675162051.post-21970270399654959012015-09-14T22:27:50.396+10:002015-09-14T22:27:50.396+10:00Kevin,
Yes, I've been integrating the 1200 km ...Kevin,<br />Yes, I've been integrating the 1200 km grid. I get a small change - a rise of 0.08 instead of 0.06. I've run spherical harmonic fits to try to locate the difference - nothing obvious. I'll post about this tomorrow.<br /><br />Actually, the main difference is indeed that GISS says the Arctic was cool in Sept, while TempLS says warm.Nick Stokeshttps://www.blogger.com/profile/06377413236983002873noreply@blogger.comtag:blogger.com,1999:blog-7729093380675162051.post-61933016208575718562015-09-14T21:58:51.386+10:002015-09-14T21:58:51.386+10:00If I take the giss land-ocean grids (from the SBBX...If I take the giss land-ocean grids (from the SBBX files) and integrate using a land mask, the land temp is down 0.02 from last year and the SST is up 0.03 from last year.<br /><br />That's different from the dTs index, which extrapolates over oceans, suggesting that the coastal land stations are warmer and the interiors cooler this year. The smaller SST increase suggests that GISTEMP is filling in cooler land temps onto sea ice areas. In fact the ice cover is lower this year than last year (maybe)? So there is less infilling from land -> ocean this year than last. That could be playing a role.<br /><br />So it may not be a glitch - it may just be down to how GISTEMP does blending. However that is pure speculation: it is testable but I haven't tested it.Kevin Cowtanhttps://www.blogger.com/profile/08736062723657125762noreply@blogger.comtag:blogger.com,1999:blog-7729093380675162051.post-2566386665276007412015-09-14T18:31:56.028+10:002015-09-14T18:31:56.028+10:00I agree with ehak, arriving at a similar conclusio...I agree with ehak, arriving at a similar conclusion after playing with the Gistemp map. Gistemp has been a little bit glitchy since the introduction of GHCNv3.3 and ERSSTv4.<br />According to the Gistemp map, SST only have a poor coverage in the Arctic ocean, much less than the green SST-crosses in NIck's "reporting stations" map. <br /><br />Meanwhile, TempLSgrid has ticked up to 0.748, the warmest monthly anomaly ever...<br />I'm looking forward to reports from other gridded datasets; JMA, NOAA, and Hadcrut..Olof Rhttps://www.blogger.com/profile/18244733455655978307noreply@blogger.comtag:blogger.com,1999:blog-7729093380675162051.post-39402302228774726932015-09-14T17:07:11.467+10:002015-09-14T17:07:11.467+10:00I can understand your puzzlement. The land-ocean i...I can understand your puzzlement. The land-ocean index is 0.01 lower than August 2014. The met-station indes is 0.08 higher than 2014. At the same time Ersstv4 is 0.06 deg higher this year.<br /><br />Doesn't add up. Looks glitchy.ehaknoreply@blogger.com