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Article in Journal/Newspaper 1,408 Text 667 Dataset 312 Conference Object 188 Report 178 Other/Unknown Material 146 Thesis 64 Still Image 44 Map 40 Book 37 Book Part 15 Audio 12 Journal/Newspaper 12 Master Thesis 9 Bachelor Thesis 8 Doctoral or Postdoctoral Thesis 7 Moving Image (Video) 3 Other Non-Article Part of Journal/Newspaper 2 Software 1 see all ...

Occdownload Gbif.Org 79 Pan American World Airways, Inc 39 Morlighem, Mathieu 34 Alken, P. 29 Kervalishvili, G. 29 Kozubek, M. 29 Kristoffersen, S. 29 Matthias, V. 29 Miyoshi, Y. 29 Siddiqui, T. 29 Stolle, C. 29 Ward, W. 29 Yamazaki, Y. 29 Laštovička, J. 26 Themens, D.R. 25 Goelzer, Heiko 21 Rignot, Eric 21 Seroussi, Helene 21 Seroussi, Hélène 20 Baptiste Vandecrux 19 Lipscomb, William H. 19 Nowicki, Sophie M.J. 19 Fettweis, Xavier 18 Larour, Eric 18 Straneo, Fiamma 18 Felikson, Denis 17 Milrad, Shawn M. 17 Kimball, John S. 16 Liberty University 16 Slater, Donald A. 16 see all ...

Aeronautics 105 GBIF 84 biodiversity 82 species occurrences 82 Motor vehicles. Aeronautics. Astronautics 80 Oceanography 74 Pan American World Airways 65 Commercial -- History -- 20th century 63 Inc. -- History 63 TL1-4050 63 Snow 58 Meteorology 53 General Earth and Planetary Sciences 52 United States -- Aeronautics 52 Space and Planetary Science 50 Airways -- Arctic regions 48 Arctic 48 Geology 43 Ice and Permafrost 42 remote sensing 42 Alaska 41 Geophysics 39 Atmospheric Sciences 36 Commercial Service -- 20th Century 36 Continued Airports 36 oceanography 36 Aquatic Science 34 Northwest History -- History -- 20th Century 34 DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce 31 DOC/NOAA/NESDIS/NODC > National Oceanographic Data Center, NESDIS, NOAA, U.S. Department of Commerce 31 see all ...

JPL Technical Report Server 218 DataCite Metadata Store (German National Library of Science and Technology) 212 Wiley Online Library 186 Embry-Riddle Aeronautical University: ERAU Scholarly Commons 133 Defense Technical Information Center: DTIC Technical Reports database 113 Directory of Open Access Journals: DOAJ Articles 111 Washington State University: WSU Libraries Digital Collections 82 DSpace@MIT (Massachusetts Institute of Technology) 81 Caltech Authors (California Institute of Technology) 80 Springer Nature (via Crossref) 68 University of Miami: Digital Collections 64 Arctic Data Center (via DataONE) 56 Cambridge University Press 56 Hathi Trust Digital Library 56 Woods Hole Scientific Community: WHOAS (Woods Hole Open Access Server) 56 IOP Publishing 55 Unknown 55 Frontiers (Publisher) 54 ScienceDirect (Elsevier - via Crossref) 52 ScienceDirect (Elsevier) 46 Digital.CSIC (Spanish National Research Council) 43 NASA Technical Reports Server (NTRS) 42 David Rumsey Historical Map Collection (Cartography Associates) 38 National Institute of Polar Research Repository, Japan 34 Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) 31 NOAA NCEI Environmental Data Archive (via DataONE) 31 Oxford University Press 29 Zenodo 29 USGS Science Data Catalog (via DataONE) 26 Memorial University of Newfoundland: Digital Archives Initiative (DAI) 25 see all ...

Arctic 802 Antarctic 447 Greenland 239 Canada 192 Pacific 162 The Antarctic 162 South Pole 160 Arctic Ocean 109 Southern Ocean 82 North Pole 71 Norway 71 Bonaparte 68 Molina 67 Brewster 62 Indian 54 Yukon 50 Fairbanks 48 Chukchi Sea 45 Argentina 40 Antarctic Peninsula 39 Rothschild 39 New Zealand 38 Todd 37 Montagu 36 Queensland 32 Île-de-France 32 Baja 31 Helgoland 31 Bering Sea 29 Wetmore 28 see all ...

English 2,106 unknown 1,007 Russian 30 Spanish 12 Japanese 10 Portuguese 7 French 5 Chinese 4 Croatian 4 Czech 3 Hungarian 3 Swedish 3 Italian 2 Ukrainian 2 Danish 1 German 1 Norwegian 1 see all ...

Arctic 877 Antarc* 660 Antarctic 478 Sea ice 309 Antarctica 291 North Atlantic 281 Alaska 272 Greenland 258 Ice Sheet 239 South pole 192 permafrost 154 Arctic Ocean 116 Climate change 99 Iceland 93 Southern Ocean 86 Tundra 84 North Pole 69 Ice 67 Ice Shelf 64 glacier 64 Chukchi 60 Anas acuta 54 Newfoundland 53 Falco peregrinus 51 Yukon 51 Chukchi Sea 49 National Snow and Ice Data Center 45 Aerosol Robotic Network 43 Branta canadensis 43 Arenaria interpres 42 see all ...