The data for the present Atlas come from the following main sources:
- Climatic Atlases, published by N╬└└ (Matishov et al., 1998; 2000; 2004; 2006; 2008; Luchin et al., 2009);
- Database of the National Oceanographic Data Center and the World Data CenČter for Oceanography, Silver Spring, NOAA, USA (http://www.nodc.noaa.gov/OC5/WOD/pr_wod.html);
- Database of the Unified (Russian) State System of Information about the Situation in the World Ocean (ESIMO), (http://data.oceaninfo.ru).
Part of the data for the period of 2001-2013 was obtained from the cruise reports of SSC RAS and MMBI KSC RAS.
Materials and data used in climate change studies in large marine ecosystems for the last 140 years were registered in the libraries of the Norwegian Polar Institute (Tromso, Norway), Dartmouth College (Hanover, USA), University of Alaska Fairbanks (Fairbanks, USA), Museum of Natural History (New York, USA), Russian Academy of Sciences (Saint-Petersburg, Russia), as well as public libraries of Murmansk, Rostov-on-Don, Moscow, and Saint-Petersburg.
Historical data on the ice conditions of the Sea of Azov and the Caspian Sea were provided by the Department of Rosgidromet (Federal Service of Russia for Hydrometeorology and Monitoring of the Environment) in the Southern Federal District and Northern Caucasus Federal District of Russia; the observations by SSC RAS specialists in the Don Delta were also used.
The ice charts of the National Snow and Ice Data Center (USA)(http://nsidc.org) for 1977-1996 and the general ice charts of the Arctic Ocean from the Ice Centre (The Centre of Ice and Hydrometeorological Information) of the Arctic and Antarctic Research Institute (AARI) (Russia)(http://www.aari.ru)for 1997-2010 are the data sources for the Barents Sea ice conditions.
The primary data on Russian fisheries in the Barents Sea for the period of 1985 to 2010 were provided by employees of the Scientific and Industrial Company źMorskaya Informatika (Marine Informatics)╗ (Murmansk, Russia).