| # | Discipline | Articles | Citations | R ARank | R CRank |
|---|
| 1 | Geographic information systems | 279 | 3,742 | 2 | 2 |
| 2 | Remote Sensing | 124 | 2,795 | 3 | 3 |
| 3 | Geophysics | 134 | 2,724 | 240 | 455 |
| 4 | Image Processing | 68 | 2,722 | 78 | 113 |
| 5 | Signal Processing | 65 | 2,699 | 245 | 224 |
| 6 | Earth Sciences | 53 | 1,879 | 164 | 201 |
| 7 | Science | 66 | 1,518 | 4.9K | 18.2K |
| 8 | Cybernetics | 18 | 1,229 | 266 | 190 |
| 9 | Atmospheric Physics | 54 | 1,107 | 189 | 388 |
| 10 | Pollution | 18 | 1,084 | 3.6K | 3.4K |
| 11 | internet | 46 | 1,008 | 49 | 65 |
| 12 | Internet of Things | 45 | 993 | 47 | 63 |
| 13 | Planets | 43 | 941 | 287 | 594 |
| 14 | Optics | 64 | 932 | 578 | 978 |
| 15 | Geodesy | 54 | 887 | 13 | 15 |
| 16 | Environmental Health | 17 | 875 | 3.5K | 3.7K |
| 17 | Research | 41 | 777 | 6.3K | 13.7K |
| 18 | environmental pollution | 15 | 760 | 2.3K | 1.8K |
| 19 | Ecology | 15 | 648 | 5.9K | 7.3K |
| 20 | Climatology | 27 | 634 | 318 | 653 |
| 21 | Artificial Intelligence | 39 | 626 | 426 | 1.1K |
| 22 | Medicine | 30 | 580 | 13.0K | 29.4K |
| 23 | Environmental Policy | 11 | 558 | 1.1K | 1.3K |
| 24 | Intelligent Transportation Systems | 30 | 553 | 66 | 135 |
| 25 | China | 32 | 541 | 448 | 436 |
| 26 | Environment | 9 | 525 | 6.2K | 7.3K |
| 27 | Detectors | 48 | 472 | 35 | 107 |
| 28 | Geochemistry | 13 | 465 | 321 | 233 |
| 29 | Geomagnetism | 10 | 442 | 215 | 110 |
| 30 | Environmental Engineering | 7 | 398 | 4.6K | 4.6K |
| 31 | Astrophysics | 47 | 373 | 692 | 1.5K |
| 32 | Cartography | 26 | 370 | 8 | 17 |
| 33 | Environmental Management | 6 | 362 | 1.7K | 1.6K |
| 34 | Technology | 19 | 359 | 1.3K | 2.6K |
| 35 | Environmental monitoring | 12 | 342 | 2.0K | 3.2K |
| 36 | Environmental Geology | 8 | 316 | 348 | 273 |
| 37 | Atmospheric Chemistry | 11 | 299 | 438 | 744 |
| 38 | sanitation | 3 | 285 | 4.4K | 4.4K |
| 39 | Meteorology | 21 | 267 | 587 | 2.7K |
| 40 | Multimedia Systems | 17 | 260 | 278 | 295 |
| 41 | Physics | 15 | 250 | 12.7K | 35.8K |
| 42 | System analysis | 5 | 240 | 1.8K | 644 |
| 43 | Photogrammetry | 24 | 239 | 3 | 2 |
| 44 | Hydrology | 8 | 238 | 1.6K | 1.7K |
| 44 | Water | 8 | 238 | 1.2K | 2.4K |
| 46 | Computer Vision | 6 | 235 | 378 | 623 |
| 47 | Transportation | 8 | 230 | 605 | 587 |
| 48 | Electronics | 10 | 229 | 2.8K | 2.9K |
| 49 | Landslides | 7 | 221 | 52 | 100 |
| 50 | Computer Graphics | 9 | 211 | 288 | 405 |
| 51 | big data | 2 | 209 | 358 | 86 |
| 52 | Public Health | 3 | 203 | 18.3K | 11.4K |
| 53 | Geography | 11 | 188 | 910 | 1.9K |
| 53 | natural disasters | 9 | 188 | 253 | 581 |
| 55 | Radio | 6 | 187 | 893 | 1.1K |
| 56 | environmental protection | 4 | 180 | 4.7K | 4.7K |
| 57 | Water pollution | 7 | 179 | 1.8K | 3.3K |
| 58 | Biology | 7 | 178 | 35.6K | 55.1K |
| 59 | Computational Biology | 8 | 173 | 4.3K | 8.9K |
| 60 | atmospheric models | 11 | 167 | 189 | 466 |
| 61 | water supply | 6 | 165 | 708 | 1.2K |
| 62 | Information Technology | 14 | 156 | 321 | 1.2K |
| 63 | multimedia | 6 | 152 | 110 | 32 |
| 63 | Interactive multimedia | 6 | 152 | 116 | 37 |
| 65 | Renewable Energy Sources | 2 | 150 | 2.2K | 2.5K |
| 66 | Oceanography | 20 | 148 | 378 | 1.8K |
| 66 | Neural circuitry | 5 | 148 | 800 | 1.1K |
| 68 | Medical Laboratory Science | 2 | 147 | 5.7K | 3.7K |
| 69 | Imaging systems | 10 | 142 | 52 | 53 |
| 70 | Entropy | 8 | 141 | 279 | 373 |
| 71 | Public Policy | 4 | 137 | 1.4K | 1.4K |
| 71 | Systems Analysis | 4 | 137 | 665 | 435 |
| 73 | Systems Engineering | 4 | 135 | 2.3K | 1.6K |
| 74 | cryosphere | 7 | 133 | 105 | 212 |
| 75 | Computer Science | 6 | 126 | 1.1K | 964 |
| 75 | hygiene | 1 | 126 | 1.6K | 440 |
| 77 | Automation | 6 | 124 | 1.8K | 2.3K |
| 78 | Glaciology | 10 | 121 | 87 | 191 |
| 78 | glaciers | 10 | 121 | 86 | 188 |
| 80 | bioclimatology | 7 | 109 | 269 | 678 |
| 81 | Economic History | 4 | 103 | 2.7K | 1.8K |
| 81 | Environmental Law | 2 | 103 | 2.2K | 3.1K |
| 81 | Human Geography | 4 | 103 | 668 | 715 |
| 84 | Natural history | 18 | 101 | 2.6K | 28.6K |
| 85 | Computer-Aided Design | 2 | 97 | 1.5K | 964 |
| 86 | Astronomy | 19 | 96 | 1.4K | 3.3K |
| 87 | Computational Intelligence | 3 | 94 | 801 | 558 |
| 88 | Telecommunication | 7 | 93 | 1.6K | 2.2K |
| 89 | emergency management | 1 | 92 | 1.7K | 450 |
| 90 | Chemical Engineering | 2 | 91 | 11.1K | 9.5K |
| 91 | hazard mitigation | 7 | 89 | 221 | 697 |
| 92 | Engineering Mathematics | 5 | 88 | 3.1K | 2.4K |
| 92 | computer networks | 8 | 88 | 923 | 1.5K |
| 94 | Climate | 3 | 84 | 313 | 509 |
| 94 | weather | 3 | 84 | 303 | 466 |
| 96 | Wireless Communication Systems | 11 | 81 | 1.0K | 2.1K |
| 97 | Bioinformatics | 5 | 79 | 4.9K | 11.3K |
| 98 | Chemistry | 4 | 78 | 49.3K | 64.9K |
| 99 | Marine Biology | 2 | 75 | 4.9K | 4.6K |
| 99 | Diagnostic Imaging | 7 | 75 | 2.5K | 6.7K |
| 99 | Marine Pollution | 2 | 75 | 1.2K | 1.6K |
| 102 | Water quality management | 3 | 71 | 2.3K | 2.5K |
| 103 | Social Sciences | 2 | 70 | 6.5K | 4.1K |
| 103 | Sociology | 2 | 70 | 5.1K | 5.2K |
| 103 | Geology | 8 | 70 | 2.1K | 4.4K |
| 103 | Quality of life | 2 | 70 | 3.1K | 3.4K |
| 103 | Navigation | 8 | 70 | 75 | 192 |
| 108 | Spectrum analysis | 3 | 69 | 6.8K | 7.7K |
| 109 | Radiation | 5 | 68 | 1.2K | 2.4K |
| 110 | Mobile Computing | 7 | 67 | 414 | 947 |
| 111 | Communication | 3 | 66 | 1.2K | 2.0K |
| 112 | lasers | 2 | 65 | 3.3K | 2.4K |
| 113 | Fisheries | 1 | 63 | 3.0K | 1.8K |
| 114 | Biodiversity conservation | 2 | 62 | 3.7K | 6.1K |
| 115 | Stochastic Processes | 3 | 61 | 939 | 856 |
| 116 | Land use | 6 | 60 | 218 | 1.0K |
| 117 | Climate change | 1 | 59 | 3.8K | 5.0K |
| 117 | Eutrophication | 1 | 59 | 3.4K | 4.9K |
| 119 | Developing countries | 2 | 58 | 2.9K | 2.9K |
| 120 | global environmental change | 1 | 53 | 1.2K | 1.1K |
| 120 | polar regions | 6 | 53 | 305 | 981 |
| 120 | environmental issues | 1 | 53 | 621 | 511 |
| 123 | soil conservation | 5 | 52 | 379 | 1.3K |
| 123 | Reservoirs | 1 | 52 | 250 | 87 |
| 123 | land degradation | 5 | 52 | 179 | 855 |
| 123 | North America | 1 | 52 | 1.4K | 907 |
| 123 | degradation | 5 | 52 | 179 | 855 |
| 128 | Mobile Commerce | 2 | 49 | 249 | 79 |
| 129 | Database Management | 1 | 47 | 555 | 449 |
| 130 | plasma | 1 | 43 | 204 | 76 |
| 131 | Fuzzy systems | 4 | 42 | 1.4K | 1.9K |
| 132 | Biophysics | 3 | 41 | 35.5K | 49.4K |
| 132 | Civil Engineering | 2 | 41 | 2.6K | 1.9K |
| 132 | Medical Physics | 3 | 41 | 3.9K | 7.0K |
| 135 | space environment | 8 | 38 | 65 | 256 |
| 136 | city planning | 3 | 37 | 1.4K | 2.4K |
| 137 | Surveying | 5 | 35 | 42 | 115 |
| 137 | United States | 5 | 35 | 9.6K | 23.6K |
| 139 | Marine Engineering | 1 | 34 | 1.5K | 271 |
| 139 | Naval Architecture | 1 | 34 | 1.4K | 253 |
| 139 | Ocean Engineering | 1 | 34 | 904 | 664 |
| 142 | Aerial Photography | 14 | 32 | 2 | 4 |
| 142 | biological evolution | 2 | 32 | 6.4K | 12.9K |
| 144 | radar | 5 | 31 | 75 | 299 |
| 144 | Sonar | 5 | 31 | 65 | 253 |
| 146 | Mathematics | 3 | 30 | 11.5K | 12.7K |
| 147 | Seismology | 4 | 28 | 362 | 803 |
| 147 | Ethnology | 1 | 28 | 2.8K | 2.2K |
| 147 | Tropical Medicine | 1 | 28 | 6.3K | 6.3K |
| 150 | color | 2 | 27 | 249 | 406 |
| 151 | Robotics | 2 | 26 | 3.0K | 4.3K |
| 152 | Architecture | 1 | 25 | 1.6K | 1.1K |
| 152 | Plant Ecology | 2 | 25 | 3.0K | 6.4K |
| 152 | construction | 1 | 25 | 158 | 303 |
| 155 | Geomorphology | 1 | 24 | 1.1K | 1.6K |
| 155 | Data Mining | 3 | 24 | 1.2K | 4.6K |
| 155 | Control Theory | 2 | 24 | 3.3K | 4.4K |
| 155 | Radio waves | 3 | 24 | 765 | 1.6K |
| 155 | Geospatial data | 2 | 24 | 20 | 45 |
| 160 | Physical Geography | 6 | 23 | 192 | 835 |
| 160 | Information Retrieval | 2 | 23 | 263 | 700 |
| 160 | Evolution | 1 | 23 | 9.4K | 12.8K |
| 163 | Petroleum Engineering | 1 | 22 | 649 | 719 |
| 163 | World Wide Web | 1 | 22 | 432 | 334 |
| 165 | Industrial Engineering | 1 | 21 | 7.7K | 9.2K |
| 165 | Telecommunication Systems | 2 | 21 | 2.4K | 3.1K |
| 165 | Waste management | 2 | 21 | 2.3K | 4.4K |
| 165 | Radio wave propagation | 4 | 21 | 571 | 1.5K |
| 165 | Maps | 3 | 21 | 74 | 269 |
| 170 | Environmental Chemistry | 1 | 20 | 8.8K | 12.0K |
| 170 | visualization | 2 | 20 | 5.7K | 5.0K |
| 170 | biological monitoring | 1 | 20 | 1.3K | 1.9K |
| 173 | Electromagnetism | 1 | 19 | 2.5K | 3.0K |
| 173 | Boundary Value Problems | 1 | 19 | 1.4K | 1.2K |
| 173 | Antenna Arrays | 1 | 19 | 758 | 938 |
| 176 | Hydrogeology | 1 | 18 | 2.2K | 2.7K |
| 176 | Optical Communications | 2 | 18 | 1.1K | 1.7K |
| 176 | Photonics | 2 | 18 | 5.2K | 10.0K |
| 176 | Engineering Geology | 1 | 18 | 2.5K | 3.1K |
| 180 | Biogeochemical cycles | 1 | 17 | 1.1K | 2.5K |
| 180 | Geobiology | 1 | 17 | 1.2K | 1.9K |
| 180 | Nervous system | 1 | 17 | 17.1K | 26.6K |
| 180 | Mountains | 1 | 17 | 786 | 648 |
| 184 | Information visualization | 1 | 16 | 310 | 244 |
| 184 | Ecosystem management | 2 | 16 | 768 | 2.1K |
| 184 | Ultrasonics | 1 | 16 | 2.6K | 4.7K |
| 184 | Ferroelectricity | 1 | 16 | 2.2K | 1.8K |
| 184 | Aquatic ecosystems | 2 | 16 | 153 | 333 |
| 184 | Sound | 1 | 16 | 2.2K | 2.3K |
| 184 | Earthquakes | 2 | 16 | 302 | 602 |
| 184 | Ultrasound | 1 | 16 | 1.3K | 2.0K |
| 184 | Radio frequency | 1 | 16 | 1.0K | 1.2K |
| 184 | Aquatic ecology | 2 | 16 | 1.2K | 3.3K |
| 194 | Software Engineering | 1 | 15 | 1.5K | 1.7K |
| 195 | Information Theory | 1 | 14 | 3.2K | 4.1K |
| 195 | Genetic algorithms | 1 | 14 | 522 | 1.0K |
| 195 | Evolutionary Computation | 1 | 14 | 559 | 1.1K |
| 198 | Petroleum | 1 | 13 | 372 | 384 |
| 198 | natural gas | 1 | 13 | 198 | 228 |
| 200 | Hydraulic Engineering | 2 | 12 | 747 | 2.0K |
| 200 | pollutants | 1 | 12 | 6.4K | 12.4K |
| 200 | Environmental pollutants | 1 | 12 | 9.3K | 16.5K |
| 203 | Engineering | 3 | 11 | 7.9K | 22.6K |
| 203 | Human-Computer Interaction | 2 | 11 | 1.6K | 4.9K |
| 203 | Water Purification | 1 | 11 | 3.3K | 4.9K |
| 203 | Radioisotopes | 1 | 11 | 2.8K | 3.8K |
| 203 | Isotopes | 1 | 11 | 188 | 409 |
| 208 | Aerospace Engineering | 3 | 10 | 189 | 697 |
| 208 | Natural resources | 2 | 10 | 736 | 1.8K |
| 208 | optical pattern recognition | 1 | 10 | 186 | 201 |
| 208 | Flow cytometry | 1 | 10 | 1.7K | 4.0K |
| 212 | Genetics | 1 | 9 | 32.4K | 53.5K |
| 212 | Statistics | 2 | 9 | 6.5K | 12.3K |
| 212 | Systems Biology | 2 | 9 | 5.4K | 15.3K |
| 212 | Genomics | 2 | 9 | 15.0K | 37.9K |
| 212 | Cognitive Science | 1 | 9 | 5.1K | 9.4K |
| 217 | Structural Engineering | 1 | 8 | 2.6K | 3.6K |
| 217 | Architectural Design | 1 | 8 | 1.1K | 1.9K |
| 217 | East Asia | 1 | 8 | 864 | 1.1K |
| 217 | Roads | 2 | 8 | 1.1K | 2.4K |
| 221 | Mechanical Engineering | 1 | 7 | 6.7K | 8.3K |
| 221 | Higher Education | 2 | 7 | 492 | 1.9K |
| 221 | Marine Meteorology | 1 | 7 | 493 | 827 |
| 221 | Educational Technology | 1 | 7 | 3.1K | 5.8K |
| 221 | Aviation | 1 | 7 | 199 | 279 |
| 221 | Hazardous waste | 1 | 7 | 1.9K | 5.4K |
| 221 | Ecological disturbances | 1 | 7 | 49 | 145 |
| 221 | educational innovations | 1 | 7 | 775 | 1.5K |
| 221 | Environmental disasters | 1 | 7 | 49 | 145 |
| 221 | Muscle contraction | 1 | 7 | 646 | 841 |
| 231 | Electrical Engineering | 2 | 6 | 7.1K | 10.4K |
| 231 | Wireless Communication | 1 | 6 | 702 | 1.2K |
| 233 | Transportation Engineering | 1 | 5 | 639 | 1.5K |
| 233 | Nuclear Physics | 2 | 5 | 7.5K | 14.1K |
| 233 | Mathematical Physics | 1 | 5 | 6.4K | 8.0K |
| 233 | Hydrometeorology | 1 | 5 | 353 | 949 |
| 233 | water reuse | 2 | 5 | 268 | 1.4K |
| 233 | Statistical physics | 1 | 5 | 11.1K | 16.6K |
| 239 | Visual Communication | 1 | 3 | 138 | 393 |
| 239 | Optoelectronics | 1 | 3 | 810 | 1.3K |
| 239 | Coastal zone management | 1 | 3 | 395 | 1.2K |
| 239 | Image enhancement | 1 | 3 | 25 | 136 |
| 239 | Earthquake prediction | 1 | 3 | 85 | 172 |
| 239 | technical education | 1 | 3 | 1.3K | 3.0K |
| 245 | Urban Policy | 1 | 2 | 573 | 1.8K |
| 245 | Quantum Gravity | 1 | 2 | 2.8K | 4.1K |
| 245 | Geodynamics | 3 | 2 | 42 | 407 |
| 245 | Adaptive control systems | 1 | 2 | 1.4K | 2.9K |
| 245 | Fractals | 1 | 2 | 792 | 1.9K |
| 245 | atmosphere | 1 | 2 | 491 | 1.2K |
| 251 | Sustainable Development | 1 | 1 | 4.0K | 10.4K |
| 251 | Landscape Ecology | 1 | 1 | 967 | 2.3K |
| 251 | Travel | 1 | 1 | 1.8K | 5.3K |
| 251 | Luminescence | 2 | 1 | 921 | 3.7K |
| 251 | data collection | 1 | 1 | 2.6K | 7.1K |
| 251 | bioluminescence | 2 | 1 | 666 | 2.7K |
| 251 | Africa | 1 | 1 | 5.1K | 11.6K |
| 251 | Agriculture | 1 | 1 | 7.4K | 15.8K |
| 259 | Cloud Computing | 1 | 0 | 486 | 1.3K |
| 259 | Photography | 1 | 0 | 893 | 2.3K |
| 259 | Astrodynamics | 1 | 0 | 27 | 68 |
| 259 | Sun | 1 | 0 | 533 | 896 |
| 259 | Solar System | 1 | 0 | 614 | 1.1K |
