Hansen، James E. "GISS Surface Temperature Analysis (GISTEMP)". National Aeronautic and Space Administration. Goddard Institute for Space Studies. مؤرشف من الأصل في 2019-05-17. اطلع عليه بتاريخ 2011-09-01.
web.archive.org
Hansen، James E. "GISS Surface Temperature Analysis (GISTEMP)". National Aeronautic and Space Administration. Goddard Institute for Space Studies. مؤرشف من الأصل في 2019-05-17. اطلع عليه بتاريخ 2011-09-01.