Category Archives: GISS

GISS Makes a Useful Reference Disappear from their Land-Ocean Temperature Index Data Page

Posted on December 1, 2018 by Bob Tisdale

The bottom of the data page for the GISS Land-Ocean Temperature Index used to (past tense) include a useful reference. But that reference was deleted in January 2016 and has been gone ever since, as far as I can tell. 

Posted in GISS | 3 Comments

Quiz: Which 30-Year Warming Period Is Recent?

Posted on July 12, 2016 by Bob Tisdale

THREE MAPS ILLUSTRATING SIMILAR GLOBAL SURFACE TEMPERATURE CHANGES OVER DIFFERENT 30-YEAR PERIODS The GISS map-making webpage allows users to create global maps of surface temperature anomalies for specific time periods or to create maps of the change in surface temperatures … Continue reading →

Posted in Climate Model Failings, GISS, Model-Data LOST | 4 Comments

Changes to the GISS Land Surface Air Temperature-Based Dataset Have Increased Reported Long-Term Global Warming

Posted on May 20, 2016 by Bob Tisdale

No surprise there. But there are also periods when reported shorter-term global warming and global cooling have been decreased. This post discusses changes to a global surface temperature dataset from the Goddard Institute of Space Studies (GISS) that is based … Continue reading →

Posted in GISS | 3 Comments

Alarmism Cranked Up to Absurd Level

Posted on March 16, 2016 by Bob Tisdale

With the El Niño-related uptick in the February 2016 GISS Land-Ocean Temperature Index, Figure 1, alarmism has reached beyond the Spinal Tap 11 volume setting, up to 20. (For those in need of a chuckle, the YouTube video of related … Continue reading →

Posted in Alarmism, GISS, Global Warming Goofiness | 17 Comments

The Three Faces of the GISS Land-Ocean Temperature Index (LOTI)

Posted on July 16, 2015 by Bob Tisdale

This is the first of a series of posts about the impacts of NOAA’s new pause-buster sea surface temperature data on the global temperature products from GISS and NCEI (formerly NCDC). In this post, we’re going to compare the three … Continue reading →

Posted in GISS, Global Temperature Update | 16 Comments

Early Hansen Co-authored Paper Notes “global mean temperature was perhaps 1 deg C warmer than today”

Posted on June 13, 2015 by Bob Tisdale

While doing some research for my upcoming book, I was rummaging through early papers on sea level data at the CU Sea Level Library.  I found there the 1982 paper Global Sea Level Trend in the Past Century by Gornitz, Lebedeff … Continue reading →

Posted in Alarmism, GISS | 2 Comments

April 2015 Global Surface (Land+Ocean) and Lower Troposphere Temperature Anomaly & Model-Data Difference Update

Posted on May 14, 2015 by Bob Tisdale

This post provides an update of the data for the three primary suppliers of global land+ocean surface temperature data—GISS through April 2015 and HADCRUT4 and NCDC through March 2015—and of the two suppliers of satellite-based lower troposphere temperature data (RSS … Continue reading →

Posted in GISS, HADCRUT4, Model-Data LOST, TLT and LOST Updates, TLT Update | 10 Comments

January 2015 Global Surface (Land+Ocean) and Lower Troposphere Temperature Anomaly & Model-Data Difference Update

Posted on February 15, 2015 by Bob Tisdale

This post provides an update of the data for the three primary suppliers of global land+ocean surface temperature data—GISS through January 2015 and HADCRUT4 and NCDC through December 2014—and of the two suppliers of satellite-based lower troposphere temperature data (RSS … Continue reading →

Posted in GISS, Global Temperature Update, HADCRUT4, Lower Troposphere Temperature, NCDC, TLT and LOST Updates | 6 Comments

GISS Meteorological Annual Mean Global Surface Temperature Data Misses the Mark by a Click

Posted on December 15, 2014 by Bob Tisdale

GISS just released its LOTI update for November and it included their Meteorological Annual Mean (December to November) global surface temperature for 2014. 2014 came close. See Figure 1.   There was a sizeable downtick in the monthly data from October … Continue reading →

Posted in GISS, Global Temperature Update | 6 Comments

October 2014 Global Surface (Land+Ocean) and Lower Troposphere Temperature Anomaly & Model-Data Difference Update

Posted on November 15, 2014 by Bob Tisdale

I’ve added a graph of the difference between the observed global temperature anomalies (GISS LOTI) and the climate model simulations of that metric by the models stored in the CMIP5 archive (used by the IPCC for their 5th Assessment Report).  … Continue reading →

Posted in GISS, HADCRUT4, LOST Update, Lower Troposphere Temperature, Model-Data LOST, NCDC, TLT and LOST Updates, TLT Update | 10 Comments