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Please note that some newer copyrights will require Flash Player 10 be installed for viewing of the online editions.If you do not have this software, please download it from Teachers: If your school or district has purchased print student editions, register now to access the full online version of the book.The GISS Surface Temperature Analysis (GISTEMP) is an estimate of global surface temperature change.Graphs and tables are updated around the middle of every month using current data files from NOAA GHCN v3 (meteorological stations), ERSST v4 (ocean areas), and SCAR (Antarctic stations), combined as described in our December 2010 publication (Hansen et al. These updated files incorporate reports for the previous month and also late reports and corrections for earlier months.Once you have registered, you can add books to your profile and distribute access codes to your students.
version 8.1.3 or later to view our online editions.See the Updates to Analysis page for detailed update information. The scheme was based on the finding that the correlation of temperature change was reasonably strong for stations separated by up to 1200 km, especially at middle and high latitudes.