The Blackboard

A random comment on a recent blog post over on Bad Astronomy drew my attention to an article back in November by Willis Eschenbach titled “When Results go Bad”. In the article, he highlights a critical email received by Phil Jones complaining that the temperature data shown in the IPCC chart below does not match [...]

There has been a lot of productive work in surface temperature reconstructions over the last few months. We have refined our earlier approaches by incorporating factors like land/ocean masking and zonal weighting. We have also gotten access to a few differing sets of land and ocean data: GHCN and GISS STEP0 (GISS for short) outputs [...]

March 2002 was warmer: 0.609C. The Jan-March average is the 5th warmest, edged out by those ending in March 2006, 2004, 2002 and 1998. The April-March average is the 3rd warmest edged out by those ending in 2004 and 1999. Someone asked to see NOAA, GISSTemp and Hadley all shown on a common baseline. Here [...]

NOAA’s temperature anomalies have been released. The March temperature anomaly is reported at 0.7735C, and compared to historic values below. As many of you know, Steve McIntyre reported suspicious readings are reported for Finland. Zeke discovered that GISS has now reported a correction for their metric. “2010-04-15: The data shown between 4/13 and 4/15 were [...]

GISSTemp updated. The March anomaly was 0.84C. My mother-in-law just walked in the door, More later!

Since the mid 1980s, the majority of temperature stations in the United States USHCN network have been converted from Liquid in Glass (LiG)/Cotton Region Shelters (CRS) measurement instruments to maximum-minimum temperatures system (MMTS) instruments. A number of researchers have suggested that the introduction of MMTS sensors has created a strong cooling bias in maximum temperatures [...]

UAH 5.3 has been updated. Now I can compare the March 2010 temperature anomaly to all previous march temperature anomalies: The March anomaly of 0.653C is the highest March anomaly in this data set. The March anomaly was exceeded by April and May 1998 anomalies of 0.753 and 0.770C respectively. Paul K2 was interested in [...]

Roy posted the UAH global-average lower tropospheric temperature for march, 2010. This is month, Neven pegged it! I followed my rule of just betting on the average value based on the daily values of the Channel 5 AMSU when posted at the web and was off by quite a bit. Here is a chart showing [...]

RSS posted their anomaly for March, 2010: 0.652C . The temperatures are plotted below. As you can see from the plot, this march beat March 1998′s anomaly of 0.586C. It is exceeded by Feb., April, and May of 1998 which hit 0.736C, 0.858, and 0.668C respectively. The average for the first three months of 2010 [...]

Its become rather fashionable of late for climate bloggers to create their own global land temperature reconstructions using GHCN data. If you include the CCC folks, there are five independent models of surface temperatures that have been created in the last few months: Tamino Jeff Id/RomanM Zeke Clear Climate Code (CCC) Residual Analysis (Joseph) As [...]