Category Archives: GISS

August 2014 Global Surface (Land+Ocean) and Lower Troposphere Temperature Anomaly Update

This post provides an update of the data for the three primary suppliers of global land+ocean surface temperature data—GISS through August 2014 and HADCRUT4 and NCDC through July 2014—and of the two suppliers of satellite-based lower troposphere temperature data (RSS … Continue reading

Posted in GISS, HADCRUT4, LOST Update, Lower Troposphere Temperature, NCDC, TLT Update | 1 Comment

GISS Tweaks the Short-Term Global Temperature Trend Upwards

SEE UPDATE 2 AT END OF POST GISS released its August 2014 global surface temperature data today. As I was preparing the graphs for the August 2014 s4urface and lower troposphere temperature update, I noticed a sizeable jump in the … Continue reading

Posted in GISS, LOST Update | 14 Comments

July 2014 Global Surface (Land+Ocean) and Lower Troposphere Temperature Anomaly Update

This post provides an update of the data for the three primary suppliers of global land+ocean surface temperature data—GISS through July 2014 and HADCRUT4 and NCDC through June 2014—and of the two suppliers of satellite-based lower troposphere temperature data (RSS … Continue reading

Posted in GISS, HADCRUT4, LOST Update, NCDC, TLT and LOST Updates, TLT Update | 17 Comments

June 2014 Global Surface (Land+Ocean) and Lower Troposphere Temperature Anomaly Update

Sorry this update is late.  I got sidetracked with the post about Risbey et al. (2014), and the post about the new climate model, now with knobs. This post provides an update of the data for the three primary suppliers … Continue reading

Posted in GISS, HADCRUT4, LOST Update, Lower Troposphere Temperature, TLT and LOST Updates, TLT Update, UKMO | 5 Comments

May 2014 Global Surface (Land+Ocean) and Lower Troposphere Temperature Anomaly Update

This post updates the data for the three primary suppliers of global land+ocean surface temperature data—GISS through May 2014 and HADCRUT4 and NCDC through April 2014—and of the two suppliers of satellite-based global lower troposphere temperature data (RSS and UAH) … Continue reading

Posted in GISS, HADCRUT4, LOST Update, Lower Troposphere Temperature, NCDC, TLT and LOST Updates, TLT Update, UKMO | 3 Comments

GISS LOTI & NCDC Global Temperature Data Drop in February 2014

This post will serve as February 2014 Global Surface (Land+Ocean) Temperature Anomaly Update First GISS:  Global surface temperatures, as represented by the GISS Land-Ocean Temperature Index (LOTI) data, dropped about 0.25 deg C from January to February 2014. See Figure … Continue reading

Posted in GISS, HADCRUT4, LOST Update, NCDC | 10 Comments

Why Aren’t Global Surface Temperature Data Produced in Absolute Form?

The title question often appears during discussions of global surface temperatures.   That is, GISS, Hadley Centre and NCDC only present their global land+ocean surface temperatures products as anomalies.  The questions is: why don’t they produce the global surface temperature products … Continue reading

Posted in GISS, HADCRUT4, NCDC | 56 Comments

The Impact of GISS Replacing Sea Surface Temperature Data With Land Surface Temperature Data

This post is a continuation of the May 31, 2010 post titled GISS Deletes Arctic And Southern Ocean Sea Surface Temperature Data. Refer also to the comments on the thread of the cross post at WattsUpWithThat. Between publishing that post … Continue reading

Posted in GISS, LOST Update | 89 Comments

GISS OHC Model Trends: One Question Answered, Another Uncovered

OVERVIEW The RealClimate Ocean Heat Content hindcast/projection trend for the GISS Model-E ensemble mean is different than the value that Roger Pielke Sr. has provided based, assumedly, on the same GISS Model ensemble mean. Why? There is another curiosity to … Continue reading

Posted in GISS, Model-Data Comparison OHC | 36 Comments

>GISS Has Removed ERSST.v3b As An Option On Its Map-Making Webpage

>I had noted the addition of ERSST.v3b SST dataset to the GISS Global Maps webpage almost a year ago in the February 25, 2010 post WHEN DID GISS ADD ERSST.v3b DATA TO THEIR MAP-MAKING WEB PAGE? In a follow-up post … Continue reading

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