tag:blogger.com,1999:blog-7729093380675162051.post6369709469406771035..comments2024-03-28T13:56:47.604+11:00Comments on moyhu: September global surface TempLS up 0.095°C from August.Nick Stokeshttp://www.blogger.com/profile/06377413236983002873noreply@blogger.comBlogger3125tag:blogger.com,1999:blog-7729093380675162051.post-71413831141650107772020-10-08T07:25:33.159+11:002020-10-08T07:25:33.159+11:00Thank you for interesting comments. I realize ther...Thank you for interesting comments. I realize there may be special issues regarding NCEP/NCAR and the SH, but the much more pronounced warming is also present for other series, like GISS (se for instance this graph https://data.giss.nasa.gov/gistemp/graphs_v4/graph_data/Hemispheric_Temperature_Change/graph.pdf ), where the gap really starts around 2000.<br />Perhaps UAH has an issue here in the opposite direction, RSS anomalies for the last 4 months reports around 0,2 to 0,3 degrees lower temperatures in the southern hemsiphere compared to the northern.<br />RSS TLT SH<br />2020 5 0.6291<br />2020 6 0.6766<br />2020 7 0.5851<br />2020 8 0.5920<br />2020 9 0.7307<br /><br />RSS TLT NH<br />2020 5 0.9873<br />2020 6 0.8485<br />2020 7 0.8907<br />2020 8 0.9426<br />2020 9 0.9981<br /><br />T. KlemsdalAnonymoushttps://www.blogger.com/profile/14077624834343387766noreply@blogger.comtag:blogger.com,1999:blog-7729093380675162051.post-47799235331107713292020-10-07T11:59:50.476+11:002020-10-07T11:59:50.476+11:00As I have been occasionally mentioning, Karsten ha...As I have been occasionally mentioning, Karsten has been warning of recent aberrant behaviour of the NCEP/NCAR data. It seems to me to be more settled in Aug/Sep. <br /><br />I give a regional breakdown of anomalies and their contribution to global anomaly <a href="https://moyhu.blogspot.com/p/latest-ice-and-temperature-data.html#mesh" rel="nofollow">here</a>. I have now added NH and SH as regions. The plot shown is not so meaningful here, but if you click through (bottom arrows) two places, it shows the anomalies for the last seven months for NH, SH, land, sea and globe. Alternatively, that plot is <a href="https://s3-us-west-1.amazonaws.com/www.moyhu.org/2020/09/break2.png" rel="nofollow">here</a>.<br /><br />It shows that earlier in the year, the NH anomaly was much higher than SH, but the gap has closed more recently. It widened to about 0.16°C in September (NH warmer). Generally warmer months reflect mainly warmer land, and so warmer NH.<br /><br />I think the difference between UAH and surface based measures like TempLS and GISS/NOAA etc may be that the latter use SST, where satellites not only measure air temperature, but air at considerable altitude, so they don't have the stabilising effect of SST.<br />Nick Stokeshttps://www.blogger.com/profile/06377413236983002873noreply@blogger.comtag:blogger.com,1999:blog-7729093380675162051.post-33023042908985062952020-10-07T00:37:11.602+11:002020-10-07T00:37:11.602+11:00Thank you for the new report, Nick.
I wonder if yo...Thank you for the new report, Nick.<br />I wonder if you have noted and can comment on the the contrast between the recent monthly anomalies from NCEP/NCAR and other surface based series (like NOAA), and UAH as regards the difference between the northern and southern henisphere? While UAH reports almost identical anomalies for NH and SH, the surface series report the NH about 0,5-1,0 C warmer than the SH. http://www.karstenhaustein.com/reanalysis/gfs0p5/GFS_anomaly_timeseries_global.html <br />Simarly, if you plot a 3 month period (ie. june, july, august) for NOAA, land and ocean, the northern hemisphere for 2020 comes out as the warmest, at 1.17 C, while the southern hemisphere is only 0.67 C and at 4.th place.<br />Could this be a 'nartural' phenomenon, that temepratures in the troposphere are more mixed and anomalies more venly distributed, or it is an artefact for example related to the reference values? Best regards T.Klemsdal, Oslo, Norway.Anonymoushttps://www.blogger.com/profile/14077624834343387766noreply@blogger.com