| 1 | Atmospheric Science (Colorado State University) | 51 | 4.5K | 12 | 14 |
| 2 | Geography (University of British Columbia) | 13 | 2.7K | 54 | 23 |
| 3 | Meteorology (University of Maryland) | 19 | 2.2K | 10 | 9 |
| 4 | Meteorology (University of Utah) | 22 | 2.1K | 7 | 7 |
| 5 | Meteorology (Pennsylvania State University) | 26 | 1.9K | 24 | 23 |
| 6 | Hydrology (University of Arizona) | 7 | 1.9K | 76 | 23 |
| 7 | Atmospheric Science (University of British Columbia) | 10 | 1.8K | 8 | 5 |
| 8 | Meteorology (Florida State University) | 40 | 1.6K | 7 | 7 |
| 9 | Geography (Indiana University Bloomington) | 10 | 1.6K | 30 | 15 |
| 10 | Meteorology (Bureau of Meteorology) | 18 | 1.6K | 33 | 21 |
| 11 | Meteorology (University of Oklahoma) | 28 | 1.5K | 13 | 10 |
| 12 | Meteorology (University of Reading) | 15 | 1.1K | 53 | 46 |
| 13 | Geography (University of North Carolina at Chapel Hill) | 2 | 1.1K | 143 | 18 |
| 14 | Aerospace Engineering (Osaka Prefecture University) | 2 | 1.1K | 29 | 4 |
| 14 | Systems Engineering (Shimane University) | 2 | 1.1K | 30 | 2 |
| 16 | Geography (University of Maryland) | 5 | 1.0K | 34 | 23 |
| 17 | Oceanography (University of California, San Diego) | 20 | 960 | 192 | 203 |
| 18 | Atmospheric Science (Indiana University Bloomington) | 6 | 945 | 13 | 8 |
| 19 | Geophysics (Tel Aviv University) | 16 | 892 | 25 | 19 |
| 20 | Environmental Science (Gwangju Institute of Science and Technology) | 6 | 887 | 87 | 53 |
| 21 | Atmospheric Physics (University of Arizona) | 9 | 874 | 10 | 12 |
| 22 | Meteorology (Wageningen University & Research) | 6 | 788 | 33 | 24 |
| 23 | Environmental Engineering (University of California, Irvine) | 2 | 786 | 174 | 52 |
| 24 | Environmental Engineering (University of Arizona) | 1 | 771 | 191 | 35 |
| 24 | Hydrology (University of California, Irvine) | 1 | 771 | 2 | 2 |
| 26 | Civil Engineering (Princeton University) | 11 | 719 | 19 | 27 |
| 26 | Operations Research (Princeton University) | 11 | 719 | 37 | 34 |
| 28 | Meteorology (University of Vienna) | 6 | 623 | 19 | 11 |
| 28 | Geophysics (University of Vienna) | 6 | 623 | 19 | 11 |
| 30 | Geography (Boston University) | 4 | 610 | 41 | 43 |
| 31 | Meteorology (Indiana University Bloomington) | 3 | 572 | 5 | 3 |
| 32 | Planetary Science (Tel Aviv University) | 2 | 512 | 11 | 8 |
| 33 | Geography (University of Delaware) | 5 | 500 | 41 | 35 |
| 34 | Geography (University of Toronto) | 1 | 464 | 378 | 91 |
| 34 | Ecology (Colorado State University) | 1 | 464 | 320 | 140 |
| 36 | Meteorology (University of Wisconsin–Madison) | 7 | 463 | 11 | 6 |
| 37 | Meteorology (Stockholm University) | 4 | 460 | 46 | 29 |
| 38 | Geography (Arizona State University) | 8 | 454 | 14 | 20 |
| 39 | Agronomy (Iowa State University) | 9 | 442 | 106 | 104 |
| 40 | Meteorology (Texas A&M University) | 12 | 436 | 4 | 8 |
| 41 | Geography (University of Georgia) | 4 | 429 | 89 | 55 |
| 42 | Mathematics (Oregon State University) | 2 | 412 | 98 | 12 |
| 42 | Statistics (Oregon State University) | 2 | 412 | 111 | 28 |
| 44 | Meteorology (University of Hawaii) | 2 | 409 | 16 | 13 |
| 45 | Geophysics (University of Hawaii) | 1 | 408 | 165 | 61 |
| 46 | Meteorology (University of Novi Sad) | 7 | 390 | 3 | 3 |
| 47 | Environmental Engineering (University of Iowa) | 6 | 378 | 73 | 64 |
| 48 | Oceanography (Rutgers University) | 2 | 371 | 12 | 5 |
| 48 | Meteorology (Rutgers University) | 2 | 371 | 14 | 4 |
| 50 | Applied Physics (Johns Hopkins University) | 5 | 370 | 265 | 162 |
| 51 | Geography (University of Alberta) | 4 | 357 | 27 | 16 |
| 51 | Meteorology (University of Alberta) | 4 | 357 | 8 | 3 |
| 51 | Remote Sensing (University of Arizona) | 2 | 357 | 15 | 12 |
| 54 | Meteorology (Uppsala University) | 11 | 355 | 7 | 6 |
| 55 | Biochemical Engineering (University of Iowa) | 3 | 351 | 81 | 64 |
| 56 | Applied Physics (National and Kapodistrian University of Athens) | 12 | 349 | 20 | 24 |
| 57 | Astronomy (Clemson University) | 4 | 347 | 102 | 67 |
| 58 | Hydrology (University of Oxford) | 4 | 343 | 52 | 50 |
| 59 | Geography (Michigan State University) | 1 | 316 | 249 | 79 |
| 60 | Electrical Engineering (Colorado State University) | 6 | 307 | 63 | 46 |
| 61 | Astronomy (University of Kansas) | 6 | 302 | 53 | 42 |
| 62 | Remote Sensing (Boston University) | 2 | 295 | 30 | 22 |
| 63 | Fluid Dynamics (Arizona State University) | 6 | 293 | 9 | 11 |
| 64 | Climatology (University of Georgia) | 1 | 291 | 11 | 4 |
| 65 | Geography (Northern Illinois University) | 7 | 279 | 16 | 19 |
| 66 | Atmospheric Science (University of Wyoming) | 9 | 272 | 11 | 18 |
| 66 | Soil Science (University of Wisconsin–Madison) | 2 | 272 | 117 | 77 |
| 66 | Meteorology (Naval Postgraduate School) | 5 | 272 | 13 | 13 |
| 69 | Environmental Engineering (University of Connecticut) | 6 | 271 | 84 | 83 |
| 70 | Atmospheric Science (ETH Zürich) | 2 | 268 | 13 | 9 |
| 71 | Geography (University of Edinburgh) | 2 | 259 | 131 | 87 |
| 71 | Civil Engineering (Tokyo Institute of Technology) | 1 | 259 | 91 | 38 |
| 73 | Hydrology (University of Saskatchewan) | 1 | 253 | 70 | 26 |
| 74 | Geography (Hebrew University of Jerusalem) | 3 | 226 | 94 | 58 |
| 75 | Atmospheric Turbulence (National Oceanic and Atmospheric Administration) | 3 | 217 | 18 | 20 |
| 76 | Earth Science (University of Maryland, Baltimore County) | 4 | 212 | 9 | 14 |
| 77 | Structural Engineering (Hong Kong Polytechnic University) | 3 | 205 | 165 | 158 |
| 78 | Geophysics (University of Colorado Boulder) | 1 | 200 | 21 | 14 |
| 78 | Hydrology (Bureau of Meteorology) | 1 | 200 | 13 | 3 |
| 80 | Applied Physics (Columbia University) | 6 | 199 | 106 | 139 |
| 80 | Earth Science (Hebrew University of Jerusalem) | 3 | 199 | 13 | 10 |
| 80 | Meteorology (University of Helsinki) | 4 | 199 | 5 | 4 |
| 83 | Geography (University of Birmingham) | 2 | 188 | 344 | 263 |
| 83 | Atmospheric Science (University of Miami) | 5 | 188 | 202 | 220 |
| 85 | Environmental Science (California Institute of Technology) | 2 | 180 | 49 | 43 |
| 86 | Atmospheric Science (University of Alabama in Huntsville) | 4 | 179 | 16 | 19 |
| 87 | Geography (Western University) | 1 | 176 | 234 | 84 |
| 88 | Aerospace Engineering (Arizona State University) | 3 | 174 | 123 | 105 |
| 89 | Geography (University of Oklahoma) | 6 | 172 | 39 | 43 |
| 90 | Meteorology (McGill University) | 5 | 169 | 9 | 7 |
| 91 | Mathematics (University of Maryland) | 5 | 168 | 96 | 107 |
| 92 | Soil Science (University of Minnesota) | 5 | 161 | 28 | 31 |
| 93 | Geography (University of Oxford) | 2 | 160 | 358 | 249 |
| 93 | Remote Sensing (National Central University) | 4 | 160 | 44 | 41 |
| 95 | Geography (University of South Carolina) | 1 | 159 | 152 | 80 |
| 95 | Geophysics (Tohoku University) | 2 | 159 | 41 | 32 |
| 97 | Architectural Engineering (University of Colorado Boulder) | 1 | 152 | 312 | 173 |
| 97 | Civil Engineering (Jenderal Soedirman University) | 1 | 152 | 16 | 4 |
| 99 | Industrial Engineering (Texas A&M University) | 1 | 147 | 101 | 49 |
| 100 | Earth Science (University of Hawaiʻi at Mānoa) | 3 | 146 | 118 | 123 |
| 101 | Physical Geography (University of Gothenburg) | 2 | 140 | 25 | 17 |
| 101 | Climatology (University of Gothenburg) | 2 | 140 | 4 | 6 |
| 103 | Chemical Engineering (University of Kentucky) | 1 | 139 | 82 | 34 |
| 104 | Physical Geography (Stockholm University) | 1 | 138 | 208 | 139 |
| 104 | Ecological Engineering (Toyohashi University of Technology) | 3 | 138 | 69 | 80 |
| 106 | Geography (University of Colorado Boulder) | 4 | 137 | 93 | 138 |
| 106 | Mathematics (Arizona State University) | 2 | 137 | 188 | 161 |
| 108 | Statistics (North Carolina State University) | 5 | 136 | 156 | 217 |
| 108 | Geography (University of Hull) | 2 | 136 | 114 | 88 |
| 110 | Fluid Mechanics (Stanford University) | 4 | 135 | 22 | 27 |
| 111 | Geography (University of Canterbury) | 2 | 134 | 92 | 74 |
| 112 | Climatology (Arizona State University) | 4 | 133 | 10 | 12 |
| 113 | Environmental Engineering (University of California, Los Angeles) | 1 | 131 | 243 | 161 |
| 114 | Geophysics (Kyoto University) | 1 | 129 | 69 | 28 |
| 115 | Astronomy (University of São Paulo) | 2 | 127 | 61 | 42 |
| 115 | Geophysics (University of São Paulo) | 2 | 127 | 60 | 41 |
| 117 | Mechanical Engineering (University of Hong Kong) | 2 | 126 | 294 | 240 |
| 118 | Atmospheric Science (University of California, Davis) | 2 | 124 | 18 | 21 |
| 118 | Meteorology (Iowa State University) | 2 | 124 | 6 | 5 |
| 118 | Meteorology (University of Belgrade) | 4 | 124 | 14 | 9 |
| 121 | Aerospace Engineering (University of Colorado Boulder) | 4 | 123 | 124 | 145 |
| 122 | Agronomy (Purdue University) | 3 | 122 | 193 | 199 |
| 123 | Remote Sensing (Chiba University) | 1 | 119 | 92 | 54 |
| 124 | Applied Physics (University of Valladolid) | 3 | 118 | 32 | 23 |
| 125 | Geography (University of Idaho) | 1 | 116 | 89 | 64 |
| 125 | Meteorology (University of Hawaiʻi at Mānoa) | 2 | 116 | 16 | 17 |
| 127 | Geography (ETH Zürich) | 3 | 115 | 13 | 24 |
| 128 | Geography (Sonoma State University) | 1 | 114 | 22 | 20 |
| 128 | Geography (University of Leicester) | 1 | 114 | 241 | 168 |
| 130 | Civil Engineering (Oregon State University) | 1 | 113 | 70 | 39 |
| 131 | Astronomy (University of Barcelona) | 2 | 112 | 25 | 22 |
| 131 | Meteorology (University of Barcelona) | 2 | 112 | 30 | 25 |
| 131 | Geography (University of Minnesota) | 2 | 112 | 84 | 72 |
| 134 | Geography (Johns Hopkins University) | 2 | 111 | 146 | 156 |
| 134 | Environmental Engineering (Johns Hopkins University) | 2 | 111 | 141 | 155 |
| 134 | Civil Engineering (University of Colorado Boulder) | 3 | 111 | 42 | 47 |
| 137 | Environmental Engineering (Princeton University) | 2 | 110 | 222 | 201 |
| 138 | Environmental Engineering (Cornell University) | 3 | 109 | 287 | 339 |
| 139 | Environmental Engineering (Stanford University) | 3 | 107 | 239 | 273 |
| 140 | Meteorology (National and Kapodistrian University of Athens) | 7 | 106 | 29 | 43 |
| 141 | Geophysics (University of Washington) | 2 | 103 | 46 | 42 |
| 141 | Atmospheric Science (Drexel University) | 2 | 103 | 44 | 24 |
| 143 | Aerospace Engineering (Indian Institute of Science, Bengaluru) | 1 | 99 | 261 | 154 |
| 144 | Hydrology (Wageningen University & Research) | 1 | 97 | 82 | 57 |
| 145 | Geography (University of Bern) | 2 | 96 | 154 | 166 |
| 146 | Applied Physics (Hebrew University of Jerusalem) | 1 | 95 | 121 | 62 |
| 147 | Geography (University of Hawaiʻi at Hilo) | 2 | 94 | 17 | 12 |
| 148 | Statistics (University of Washington) | 2 | 93 | 209 | 227 |
| 149 | Oceanography (University of Cape Town) | 2 | 92 | 67 | 68 |
| 149 | Atmospheric Physics (Indiana University Bloomington) | 1 | 92 | 2 | 2 |
| 151 | Education (University of Lisbon) | 1 | 90 | 63 | 38 |
| 151 | Environmental Engineering (University of Lisbon) | 1 | 90 | 4 | 1 |
| 153 | Geography (University of Bristol) | 4 | 89 | 36 | 71 |
| 153 | Remote Sensing (University of Bristol) | 4 | 89 | 6 | 6 |
| 153 | Remote Sensing (University of Maryland) | 1 | 89 | 26 | 23 |
| 156 | Geography (Rutgers University) | 2 | 84 | 61 | 80 |
| 156 | Planetary Science (Johns Hopkins University) | 1 | 84 | 31 | 29 |
| 158 | Environmental Science (University of Colorado) | 1 | 83 | 27 | 21 |
| 158 | Environmental Science (Murdoch University) | 3 | 83 | 103 | 136 |
| 160 | Environmental Engineering (University of Cincinnati) | 3 | 81 | 160 | 210 |
| 161 | Atmospheric Science (Texas Tech University) | 2 | 79 | 15 | 19 |
| 162 | Meteorology (Istanbul Technical University) | 4 | 78 | 13 | 36 |
| 163 | Environmental Engineering (Washington State University) | 5 | 77 | 96 | 187 |
| 163 | Geography (University of California, Santa Barbara) | 2 | 77 | 219 | 258 |
| 165 | Meteorology (San José State University) | 5 | 76 | 14 | 25 |
| 166 | Engineering Physics (Air Force Institute of Technology) | 2 | 74 | 63 | 42 |
| 167 | Applied Physics (University of Bern) | 2 | 73 | 116 | 106 |
| 167 | Anthropology (Georgia State University) | 3 | 73 | 23 | 44 |
| 167 | Geography (Georgia State University) | 3 | 73 | 10 | 29 |
| 170 | Electrical Engineering (University of Washington) | 1 | 72 | 353 | 287 |
| 170 | Remote Sensing (University of Washington) | 1 | 72 | 21 | 20 |
| 172 | Biostatistics (University of Washington) | 1 | 71 | 602 | 493 |
| 172 | Mathematics (University of Wisconsin–Eau Claire) | 1 | 71 | 22 | 3 |
| 174 | Geography (University of Victoria) | 1 | 70 | 230 | 167 |
| 175 | Computer Engineering (University of Florida) | 1 | 69 | 377 | 268 |
| 176 | Meteorology (Northern Illinois University) | 3 | 68 | 7 | 10 |
| 177 | Mathematics (University of Alberta) | 2 | 67 | 101 | 95 |
| 177 | Climatology (University of the Witwatersrand) | 1 | 67 | 33 | 28 |
| 179 | Atmospheric Science (University of Washington) | 2 | 66 | 14 | 23 |
| 179 | Atmospheric Physics (Aristotle University of Thessaloniki) | 2 | 66 | 39 | 38 |
| 179 | Thermodynamics (Graz University of Technology) | 1 | 66 | 32 | 22 |
| 179 | Astrodynamics (University of Colorado Boulder) | 2 | 66 | 33 | 42 |
| 183 | Meteorology (University of Cologne) | 1 | 64 | 83 | 69 |
| 183 | Mechanical Engineering (University of Utah) | 1 | 64 | 330 | 234 |
| 183 | Statistics (Duke University) | 1 | 64 | 206 | 220 |
| 183 | Mechanical Engineering (Arizona State University) | 1 | 64 | 68 | 49 |
| 183 | Fluid Dynamics (University of Utah) | 1 | 64 | 10 | 7 |
| 183 | Geophysics (University of Cologne) | 1 | 64 | 83 | 69 |
| 183 | Meteorology (Colorado State University) | 2 | 64 | 3 | 9 |
| 183 | Aerospace Engineering (University of Utah) | 1 | 64 | 1 | 1 |
| 183 | Aerospace Engineering (University College London) | 1 | 64 | 2 | 2 |
| 183 | Fluid Dynamics (University College London) | 1 | 64 | 4 | 3 |
| 193 | Civil Engineering (University of Tokyo) | 2 | 62 | 151 | 146 |
| 193 | Geography (University of Newcastle) | 1 | 62 | 122 | 114 |
| 195 | Civil Engineering (Texas A&M University) | 2 | 61 | 267 | 317 |
| 196 | Oceanography (Ocean University of China) | 1 | 60 | 158 | 106 |
| 196 | Agricultural Economics (Texas A&M University) | 2 | 60 | 147 | 129 |
| 198 | Electrical Engineering (University of Arizona) | 1 | 59 | 61 | 51 |
| 199 | Applied Mathematics (Columbia University) | 4 | 58 | 116 | 216 |
| 199 | Statistics (Florida State University) | 1 | 58 | 210 | 156 |
| 199 | Geography (Florida State University) | 1 | 58 | 121 | 123 |
| 202 | Atmospheric Science (Iowa State University) | 3 | 57 | 6 | 21 |
| 202 | Remote Sensing (University of Massachusetts Amherst) | 2 | 57 | 11 | 17 |
| 204 | Mechanical Engineering (Iowa State University) | 2 | 56 | 272 | 283 |
| 205 | Agronomy (Cornell University) | 1 | 53 | 87 | 71 |
| 205 | Biology (University of Colorado Boulder) | 1 | 53 | 324 | 281 |
| 205 | Civil Engineering (University of Iowa) | 1 | 53 | 17 | 22 |
| 205 | Computer Engineering (University of Colorado Boulder) | 2 | 53 | 117 | 117 |
| 205 | Meteorology (Cornell University) | 1 | 53 | 5 | 3 |
| 210 | Geography (Tokyo Metropolitan University) | 3 | 52 | 27 | 46 |
| 211 | Atmospheric Physics (Nanjing University of Information Science and Technology) | 2 | 50 | 80 | 82 |
| 211 | Information Technology (Chengdu University of Information Technology) | 2 | 50 | 427 | 403 |
| 211 | Atmospheric Physics (Chengdu University of Information Technology) | 2 | 50 | 7 | 8 |
| 214 | Geography (University of London) | 1 | 49 | 108 | 112 |
| 214 | Geography (Queen Mary University of London) | 1 | 49 | 216 | 210 |
| 214 | Oceanography (Utrecht University) | 1 | 49 | 26 | 28 |
| 214 | Electrical Engineering (Pennsylvania State University) | 1 | 49 | 390 | 316 |
| 214 | Meteorology (Utrecht University) | 1 | 49 | 22 | 21 |
| 219 | Environmental Engineering (University of Alberta) | 1 | 48 | 418 | 369 |
| 219 | Electronics (Massachusetts Institute of Technology) | 2 | 48 | 342 | 418 |
| 219 | Environmental Science (University of Colorado Boulder) | 1 | 48 | 71 | 83 |
| 222 | Civil Engineering (Colorado State University) | 1 | 46 | 117 | 108 |
| 223 | Statistics (University of Rochester) | 3 | 45 | 15 | 52 |
| 224 | Remote Sensing (Duke University) | 1 | 44 | 2 | 7 |
| 225 | Geography (University of Wisconsin–Whitewater) | 2 | 43 | 12 | 20 |
| 226 | Applied Mathematics (University of Cambridge) | 1 | 42 | 399 | 389 |
| 226 | Statistics (University of Toronto) | 1 | 42 | 160 | 190 |
| 228 | Earth Science (University of Hawaii) | 1 | 41 | 117 | 134 |
| 228 | Agricultural Engineering (North Carolina State University) | 1 | 41 | 165 | 162 |
| 228 | Physical Chemistry (Ghent University) | 1 | 41 | 227 | 237 |
| 228 | Atmospheric Physics (ETH Zürich) | 4 | 41 | 11 | 19 |
| 228 | Environmental Engineering (Massachusetts Institute of Technology) | 3 | 41 | 276 | 472 |
| 228 | Meteorology (Complutense University of Madrid) | 2 | 41 | 9 | 10 |
| 234 | Civil Engineering (University of Washington) | 2 | 40 | 96 | 122 |
| 234 | Applied Mathematics (Hong Kong Polytechnic University) | 1 | 40 | 272 | 220 |
| 234 | Mathematics (University of Southampton) | 1 | 40 | 176 | 173 |
| 237 | Physical Geography (Lund University) | 3 | 39 | 132 | 209 |
| 238 | Ecology (Washington Department of Ecology) | 1 | 38 | 106 | 103 |
| 239 | Public Health (Harvard University) | 1 | 36 | 1,943 | 1,816 |
| 239 | Applied Mathematics (Tokyo University of Science) | 2 | 36 | 38 | 25 |
| 241 | Statistics (University of Sheffield) | 1 | 34 | 256 | 291 |
| 241 | Geography (Loughborough University) | 1 | 34 | 213 | 246 |
| 241 | Agricultural Engineering (University of Nebraska–Lincoln) | 1 | 34 | 33 | 33 |
| 241 | Geography (University of Iowa) | 1 | 34 | 87 | 113 |
| 241 | Mathematics (University of Sheffield) | 1 | 34 | 193 | 201 |
| 241 | Systems Engineering (University of Nebraska–Lincoln) | 1 | 34 | 292 | 306 |
| 241 | Agricultural Engineering (University of Georgia) | 1 | 34 | 133 | 149 |
| 241 | Agricultural Engineering (University of Concepción) | 1 | 34 | 23 | 30 |
| 249 | Statistics (University of Alabama in Huntsville) | 2 | 33 | 6 | 10 |
| 249 | Hydrology (University of Alabama in Huntsville) | 1 | 33 | 7 | 9 |
| 251 | Geophysics (Complutense University of Madrid) | 1 | 32 | 22 | 17 |
| 251 | Environmental Engineering (Marmara University) | 1 | 32 | 80 | 88 |
| 253 | Earth Science (University of Tokyo) | 1 | 31 | 60 | 60 |
| 253 | Electrical Engineering (University of Colorado Boulder) | 1 | 31 | 100 | 109 |
| 253 | Earth Science (Hokkaido University) | 1 | 31 | 461 | 448 |
| 253 | Education (Hokkaido University) | 1 | 31 | 314 | 307 |
| 257 | Aerospace Engineering (Georgia Tech) | 2 | 30 | 193 | 235 |
| 257 | Geography (San Diego State University) | 1 | 30 | 171 | 202 |
| 257 | Earth Science (Nanjing University of Information Science and Technology) | 1 | 30 | 7 | 7 |
| 257 | Atmospheric Physics (University of Hawaiʻi at Mānoa) | 1 | 30 | 3 | 4 |
| 257 | Applied Mechanics (Novosibirsk State University) | 1 | 30 | 2 | 3 |
| 257 | Information Technology (Nanjing University of Information Science and Technology) | 1 | 30 | 17 | 10 |
| 263 | Geography (University of Gothenburg) | 1 | 29 | 9 | 22 |
| 263 | Materials Engineering (Washington State University) | 2 | 29 | 222 | 290 |
| 263 | Mathematics (University of Colorado Boulder) | 2 | 29 | 68 | 99 |
| 263 | Mathematics (University of the Aegean) | 1 | 29 | 130 | 84 |
| 263 | Atmospheric Science (University of Gothenburg) | 1 | 29 | 63 | 78 |
| 268 | Civil Engineering (University of Idaho) | 1 | 28 | 63 | 93 |
| 268 | Agricultural Engineering (University of Idaho) | 1 | 28 | 63 | 98 |
| 268 | Agricultural Engineering (University of Colorado Boulder) | 1 | 28 | 6 | 6 |
| 271 | Computer Science (University of Central Florida) | 1 | 27 | 347 | 350 |
| 271 | Electrical Engineering (University of Central Florida) | 1 | 27 | 230 | 246 |
| 271 | Geography (Ohio State University) | 1 | 27 | 205 | 259 |
| 271 | Geography (Pennsylvania State University) | 1 | 27 | 226 | 300 |
| 271 | Electrical Engineering (Georgia Tech) | 1 | 27 | 184 | 169 |
| 271 | Chemical Engineering (University of Iowa) | 1 | 27 | 15 | 20 |
| 271 | Atmospheric Science (Lanzhou University) | 3 | 27 | 18 | 31 |
| 278 | Applied Physics (University of Technology Sydney) | 1 | 26 | 55 | 61 |
| 278 | Mathematics (University of the West Indies) | 1 | 26 | 98 | 74 |
| 280 | Atmospheric Science (National Oceanic and Atmospheric Administration) | 2 | 25 | 9 | 15 |
| 281 | Meteorology (Sofia University) | 2 | 24 | 24 | 37 |
| 281 | Meteorology (University of Nairobi) | 1 | 24 | 20 | 32 |
| 283 | Civil Engineering (Pennsylvania State University) | 1 | 23 | 90 | 103 |
| 283 | Geography (Kent State University) | 2 | 23 | 83 | 141 |
| 283 | Systems Engineering (University of Virginia) | 2 | 23 | 40 | 73 |
| 283 | Statistics (University of Virginia) | 2 | 23 | 67 | 178 |
| 283 | Atmospheric Physics (University of Salamanca) | 3 | 23 | 4 | 7 |
| 283 | Mathematics (University of Oviedo) | 3 | 23 | 67 | 139 |
| 289 | Applied Mathematics (University of Hull) | 1 | 22 | 32 | 29 |
| 289 | Geography (Maynooth University) | 1 | 22 | 116 | 125 |
| 289 | Statistics (University of California, Berkeley) | 1 | 22 | 279 | 342 |
| 289 | Mathematics (New York University) | 1 | 22 | 148 | 194 |
| 289 | Environmental Engineering (Bucknell University) | 1 | 22 | 51 | 63 |
| 289 | Environmental Science (Ewha Womans University) | 1 | 22 | 143 | 159 |
| 289 | Experimental Physics (Maynooth University) | 1 | 22 | 42 | 31 |
| 296 | Environmental Engineering (Texas A&M University) | 1 | 21 | 237 | 242 |
| 296 | Applied Physics (California Institute of Technology) | 1 | 21 | 170 | 199 |
| 296 | Applied Mathematics (California Institute of Technology) | 1 | 21 | 63 | 82 |
| 296 | Mathematics (University of Bristol) | 1 | 21 | 285 | 343 |
| 296 | Computer Science (University of Victoria) | 1 | 21 | 205 | 220 |
| 296 | Oceanography (University of Rhode Island) | 1 | 21 | 298 | 319 |
| 296 | Mathematics (University of California, Los Angeles) | 1 | 21 | 266 | 304 |
| 296 | Atmospheric Chemistry (University of Rhode Island) | 1 | 21 | 20 | 23 |
| 304 | Biology (Tsinghua University) | 1 | 20 | 403 | 462 |
| 304 | Microbiology (Tsinghua University) | 1 | 20 | 48 | 82 |
| 304 | Environmental Engineering (Tsinghua University) | 1 | 20 | 100 | 160 |
| 304 | Biology (Northern Arizona University) | 1 | 20 | 74 | 108 |
| 304 | Civil Engineering (Northern Arizona University) | 1 | 20 | 21 | 46 |
| 304 | Microbiology (Northern Arizona University) | 1 | 20 | 4 | 10 |
| 304 | Biology (University of Oklahoma) | 1 | 20 | 385 | 481 |
| 304 | Microbiology (University of Oklahoma) | 1 | 20 | 431 | 540 |
| 304 | Statistics (Colorado State University) | 1 | 20 | 270 | 325 |
| 304 | Hydraulic Engineering (Tsinghua University) | 1 | 20 | 288 | 311 |
| 304 | Agricultural Engineering (Louisiana State University Agricultural Center) | 1 | 20 | 61 | 81 |
| 304 | Environmental Engineering (Northern Arizona University) | 1 | 20 | 26 | 54 |
| 304 | Physical Geography (Stanford University) | 1 | 20 | 4 | 8 |
| 304 | Environmental Engineering (Qinghai University) | 1 | 20 | 75 | 98 |
| 304 | Hydraulic Engineering (Qinghai University) | 1 | 20 | 13 | 13 |
| 319 | Environmental Engineering (Arizona State University) | 1 | 19 | 116 | 153 |
| 319 | Mathematics (University of New South Wales) | 1 | 19 | 434 | 482 |
| 319 | Oceanography (Old Dominion University) | 1 | 19 | 85 | 105 |
| 319 | Geophysics (Sofia University) | 1 | 19 | 22 | 34 |
| 319 | Meteorology (Aristotle University of Thessaloniki) | 1 | 19 | 46 | 68 |
| 324 | Chemistry (University of Colorado Boulder) | 1 | 18 | 363 | 476 |
| 324 | Biochemistry (University of Colorado Boulder) | 1 | 18 | 320 | 441 |
| 324 | Geophysics (University of Évora) | 2 | 18 | 28 | 65 |
| 327 | Geophysics (Peking University) | 1 | 17 | 61 | 65 |
| 327 | Education (Tsinghua University) | 1 | 17 | 1,061 | 1,191 |
| 327 | Mechanical Engineering (Washington State University) | 1 | 17 | 56 | 70 |
| 327 | Atmospheric Physics (Tsinghua University) | 1 | 17 | 5 | 8 |
| 327 | Fluid Dynamics (Tsinghua University) | 1 | 17 | 5 | 6 |
| 332 | Geography (University of Nottingham) | 1 | 16 | 292 | 376 |
| 332 | Mechanical Engineering (University of Iowa) | 1 | 16 | 145 | 200 |
| 332 | Mathematics (University of Alabama in Huntsville) | 1 | 16 | 31 | 33 |
| 335 | Environmental Engineering (California Institute of Technology) | 1 | 15 | 59 | 96 |
| 335 | Geology (Indian Institute of Technology (Indian School of Mines), Dhanbad) | 1 | 15 | 52 | 65 |
| 335 | Environmental Engineering (Montana Technological University) | 2 | 15 | 9 | 36 |
| 338 | Geophysics (University of Texas at Austin) | 1 | 14 | 122 | 151 |
| 338 | Geophysics (University of Warsaw) | 1 | 14 | 51 | 63 |
| 338 | Geography (University of Bremen) | 2 | 14 | 41 | 90 |
| 338 | Geography (University of Florida) | 1 | 14 | 194 | 286 |
| 338 | Atmospheric Science (Dalhousie University) | 2 | 14 | 133 | 237 |
| 338 | Soil Science (University of British Columbia) | 1 | 14 | 44 | 62 |
| 338 | Atmospheric Physics (National Central University) | 1 | 14 | 19 | 27 |
| 345 | Civil Engineering (Rensselaer Polytechnic Institute) | 1 | 13 | 44 | 63 |
| 345 | Oceanography (University of Miami) | 2 | 13 | 24 | 68 |
| 345 | Meteorology (University of Miami) | 2 | 13 | 23 | 53 |
| 345 | Chemistry (University of Tulsa) | 1 | 13 | 52 | 88 |
| 345 | Chemical Engineering (University of Tulsa) | 1 | 13 | 68 | 101 |
| 345 | Statistics (University of South Africa) | 2 | 13 | 29 | 50 |
| 345 | Meteorology (Ohio State University) | 1 | 13 | 14 | 23 |
| 352 | Geography (University of Calgary) | 3 | 12 | 92 | 262 |
| 352 | Optics (Queensland University of Technology) | 1 | 12 | 46 | 65 |
| 352 | Quality Management (Bay Area Air Quality Management District) | 1 | 12 | 23 | 28 |
| 355 | Atmospheric Science (University of Oklahoma) | 1 | 11 | 4 | 5 |
| 355 | Electrical Engineering (Delft University of Technology) | 1 | 11 | 165 | 226 |
| 355 | Geography (University of Tasmania) | 1 | 11 | 237 | 306 |
| 355 | Horticulture (Colorado State University) | 1 | 11 | 115 | 191 |
| 355 | Remote Sensing (Beijing Normal University) | 1 | 11 | 179 | 258 |
| 355 | Anthropology (Collin College) | 1 | 11 | 15 | 27 |
| 361 | Civil Engineering (University of Minnesota) | 1 | 10 | 213 | 338 |
| 361 | Oceanography (Dalhousie University) | 2 | 10 | 154 | 266 |
| 361 | Anthropology (Louisiana State University) | 1 | 10 | 168 | 251 |
| 361 | Geography (Louisiana State University) | 1 | 10 | 170 | 253 |
| 361 | Anthropology (PennWest Clarion) | 1 | 10 | 3 | 11 |
| 361 | Hydrology (Uppsala University) | 1 | 10 | 27 | 50 |
| 361 | Geography (PennWest Clarion) | 1 | 10 | 5 | 9 |
| 361 | Architecture (Nippon Institute of Technology) | 1 | 10 | 5 | 7 |
| 369 | Applied Mechanics (Kyushu University) | 1 | 9 | 217 | 273 |
| 369 | Meteorology (University of Bergen) | 1 | 9 | 14 | 23 |
| 369 | Oceanography (Bates College) | 1 | 9 | 3 | 7 |
| 369 | Meteorology (Ben-Gurion University of the Negev) | 1 | 9 | 9 | 11 |
| 373 | Mathematics (Southern University) | 1 | 8 | 2 | 5 |
| 373 | Industrial Engineering (University of Manitoba) | 1 | 8 | 88 | 111 |
| 375 | Geography (National University of Singapore) | 1 | 7 | 269 | 407 |
| 375 | Oceanography (Florida State University) | 1 | 7 | 143 | 198 |
| 375 | Oceanography (Wuhan University) | 1 | 7 | 5 | 7 |
| 375 | Geography (University of Sussex) | 1 | 7 | 135 | 238 |
| 375 | Earth Science (University of Maryland, Baltimore) | 1 | 7 | 7 | 9 |
| 375 | Mathematics (Carleton College) | 1 | 7 | 36 | 68 |
| 375 | Fluid Dynamics (Florida State University) | 1 | 7 | 52 | 74 |
| 375 | Environmental Science (Columbia University) | 1 | 7 | 84 | 131 |
| 375 | Meteorology (Vrije Universiteit Amsterdam) | 1 | 7 | 3 | 4 |
| 375 | Statistics (Carleton College) | 1 | 7 | 17 | 33 |
| 375 | Climatology (University of Florida) | 1 | 7 | 3 | 3 |
| 375 | Atmospheric Physics (University of the Aegean) | 1 | 7 | 1 | 1 |
| 387 | Oceanography (United States Naval Academy) | 1 | 6 | 28 | 50 |
| 387 | Chemical Engineering (University of Santiago de Compostela) | 1 | 6 | 154 | 225 |
| 387 | Fluid Dynamics (University of the Balearic Islands) | 1 | 6 | 3 | 4 |
| 390 | Geography (Zhejiang University) | 1 | 5 | 31 | 62 |
| 390 | Mechanical Engineering (Federal University of Rio de Janeiro) | 1 | 5 | 128 | 186 |
| 390 | Geography (Appalachian State University) | 1 | 5 | 75 | 123 |
| 390 | Mathematics (University of Wyoming) | 1 | 5 | 120 | 191 |
| 390 | Environmental Engineering (Warsaw University of Technology) | 3 | 5 | 68 | 183 |
| 395 | Civil Engineering (Virginia Tech) | 1 | 4 | 100 | 168 |
| 395 | Electrical Engineering (Virginia Tech) | 1 | 4 | 139 | 198 |
| 395 | Statistics (University of Chicago) | 1 | 4 | 277 | 507 |
| 395 | Oceanography (University of Washington) | 1 | 4 | 188 | 288 |
| 395 | Geography (Bar-Ilan University) | 1 | 4 | 115 | 224 |
| 395 | Atmospheric Science (State University of New York) | 1 | 4 | 21 | 48 |
| 395 | Oceanography (State University of New York) | 1 | 4 | 3 | 3 |
| 395 | Oceanography (University of Maine) | 1 | 4 | 45 | 78 |
| 395 | Meteorology (University of Nebraska–Lincoln) | 1 | 4 | 31 | 41 |
| 395 | Systems Engineering (Clemson University) | 2 | 4 | 40 | 75 |
| 395 | Environmental Engineering (University of Washington) | 1 | 4 | 289 | 472 |
| 395 | Environmental Engineering (University of California, San Diego) | 1 | 4 | 4 | 20 |
| 395 | Oceanography (University of Costa Rica) | 1 | 4 | 3 | 3 |
| 395 | Earth Science (Tokyo Metropolitan University) | 1 | 4 | 3 | 4 |
| 395 | Climatology (University of Nebraska–Lincoln) | 1 | 4 | 16 | 31 |
| 395 | Dynamics (University of Maine) | 1 | 4 | 7 | 12 |
| 411 | Geography (McMaster University) | 1 | 3 | 360 | 563 |
| 411 | Civil Engineering (University of Alberta) | 1 | 3 | 81 | 148 |
| 411 | Meteorology (University of Innsbruck) | 1 | 3 | 41 | 70 |
| 411 | Statistics (University of California, Los Angeles) | 1 | 3 | 330 | 603 |
| 411 | Atmospheric Science (University of California, Los Angeles) | 1 | 3 | 7 | 18 |
| 411 | Mathematics (University of Rochester) | 1 | 3 | 59 | 100 |
| 411 | Biostatistics (University of California, Los Angeles) | 1 | 3 | 412 | 653 |
| 411 | Geophysics (University of Innsbruck) | 1 | 3 | 41 | 70 |
| 419 | Statistics (ETH Zürich) | 1 | 2 | 77 | 220 |
| 419 | Geography (University of Hawaii) | 1 | 2 | 71 | 138 |
| 419 | Meteorology (University of Buenos Aires) | 1 | 2 | 2 | 4 |
| 422 | Geography (Taras Shevchenko National University of Kyiv) | 1 | 1 | 11 | 32 |
| 422 | Medical Physics (University of Veterinary Medicine Vienna) | 1 | 1 | 23 | 37 |
| 422 | Astronomy (University of Wyoming) | 2 | 1 | 39 | 105 |
| 422 | Atmospheric Science (State University of New York at Albany) | 3 | 1 | 18 | 50 |
| 422 | Mathematics (Howard University) | 1 | 1 | 93 | 154 |
| 422 | Geology (University of Arkansas) | 1 | 1 | 19 | 40 |
| 422 | Biostatistics (University of Veterinary Medicine Vienna) | 1 | 1 | 56 | 110 |
| 422 | Atmospheric Science (Pennsylvania State University) | 1 | 1 | 63 | 126 |
| 422 | Meteorology (Taras Shevchenko National University of Kyiv) | 1 | 1 | 7 | 10 |
| 422 | Climatology (Taras Shevchenko National University of Kyiv) | 1 | 1 | 7 | 10 |
| 432 | Earth Science (Lomonosov Moscow State University) | 10 | 0 | 1 | 26 |
| 432 | Oceanography (Texas A&M University) | 1 | 0 | 205 | 302 |
| 432 | Applied Physics (University of Manchester) | 2 | 0 | 15 | 37 |
| 432 | Mechanical Engineering (Michigan State University) | 1 | 0 | 330 | 522 |
| 432 | Geophysics (University of Zagreb) | 2 | 0 | 38 | 92 |
| 432 | Chemical Engineering (Louisiana State University) | 1 | 0 | 198 | 343 |
| 432 | Meteorology (Nanjing University of Information Science and Technology) | 1 | 0 | 204 | 334 |
| 432 | Environmental Engineering (Anyang University) | 1 | 0 | 16 | 29 |