GISS Surface Temp Analysis (GISTEMP)
2011-01-28: The NASA/GSFC Scientific Visualization Studio room has created a new movement of the going five-year indicate of the global surface temperatures anomaly. 2011-01-13: NASA provides issued a second news release discussing global heat and how GISS results beat those of other institutions. 2011-01-12: NASA provides issued a news release regarding the 2010 average global temperature. 2010-12-13: Our paper " Global surface temp change" was published today in Testimonials of Geophysics. A summary (PDF) is also readily available. 2010-12-11: We certainly have posted a website discussing that 2010 made the awesome November regardless of a European cool spell and a strong La NiГ±a. Find also the Updates to the analysis method.
Time Group of Zonal Means
Seasonal Cycle of Zonal Means
The basic GISS temperature research scheme was defined in the late 1970s by simply James Hansen when a technique of estimating global temperature transform was required for comparison with one-dimensional global climate models. Prior temp analyses, most notably those of Murray Mitchell, protected only 20-90В°N latitudes. Each of our first printed results (Hansen et approach. 1981) showed that, contrary to impressions via northern latitudes, global cooling down after 1940 was small , and there is net global warming of about 0. 4В°C involving the 1880s and 1970s.
Current Analysis Method
The current evaluation uses satellite tv observed nightlights to identify dimension stations positioned in extreme night and change temperature trends of urban and peri-urban stations for non-climatic elements, verifying that urban effects on assessed global change are small. A newspaper describing the latest analysis was published (Hansen et al. 2010) in Reviews of Geophysics in December 2010. The newspaper compares alternative analyses, and address inquiries about...