Isotherms showing average temperatures in Russia during selected months
as well as a contoured map of the amplitude of change during the year.
Published in Petermann's Geographische Mittheilungen.
Image ID: wea05005, NOAA's National Weather Service (NWS) Collection
Photo Date: 1881
Credit: NOAA Central Library Historical Collections
• High Resolution Photo Available
of the U.S. Department of Commerce, National Oceanic & Atmospheric
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June 10, 2016