| Observing Earth's atmosphere with radio occultation measurements using the Global Positioning System ER Kursinski, GA Hajj, JT Schofield, RP Linfield, KR Hardy Journal of Geophysical Research: Atmospheres 102 (D19), 23429-23465, 1997 | 1669 | 1997 |
| Effects of antenna orientation on GPS carrier phase JT Wu, SC Wu, GA Hajj, WI Bertiger, SM Lichten Astrodynamics 1991, 1647-1660, 1992 | 945 | 1992 |
| A technical description of atmospheric sounding by GPS occultation GA Hajj, ER Kursinski, LJ Romans, WI Bertiger, SS Leroy Journal of Atmospheric and solar-terrestrial physics 64 (4), 451-469, 2002 | 543 | 2002 |
| Ionospheric electron density profiles obtained with the Global Positioning System: Results from the GPS/MET experiment GA Hajj, LJ Romans Radio Science 33 (1), 175-190, 1998 | 539 | 1998 |
| The application of spaceborne GPS to atmospheric limb sounding and global change monitoring WG Melbourne, ES Davis, CB Duncan, GA Hajj, KR Hardy, ER Kursinski, ... | 472 | 1994 |
| CHAMP and SAC‐C atmospheric occultation results and intercomparisons GA Hajj, CO Ao, BA Iijima, D Kuang, ER Kursinski, AJ Mannucci, ... Journal of Geophysical Research: Atmospheres 109 (D6), 2004 | 438 | 2004 |
| Initial results of radio occultation observations of Earth's atmosphere using the Global Positioning System ER Kursinski, GA Hajj, WI Bertiger, SS Leroy, TK Meehan, LJ Romans, ... Science 271 (5252), 1107-1110, 1996 | 420 | 1996 |
| The GPS radio occultation technique ER Kursinski, GA Hajj, SS Leroy, B Herman Terrestrial Atmospheric and Oceanic Sciences 11 (1), 53-114, 2000 | 362 | 2000 |
| Higher-order ionospheric effects on the global positioning system observables and means of modeling them S Bassiri, GA Hajj Manuscripta geodaetica 18, 280-280, 1993 | 338 | 1993 |
| The effect of the second order GPS ionospheric correction on receiver positions S Kedar, GA Hajj, BD Wilson, MB Heflin Geophysical research letters 30 (16), 2003 | 336 | 2003 |
| First spaceborne observation of an Earth-reflected GPS signal ST Lowe, JL LaBrecque, C Zuffada, LJ Romans, LE Young, GA Hajj Radio Science 37 (1), 1-28, 2002 | 287 | 2002 |
| Imaging the ionosphere with the Global Positioning System GA Hajj, R Ibanez‐Meier, ER Kursinski, LJ Romans International Journal of imaging systems and Technology 5 (2), 174-187, 1994 | 260 | 1994 |
| Demonstrating soil moisture remote sensing with observations from the UK TechDemoSat‐1 satellite mission C Chew, R Shah, C Zuffada, G Hajj, D Masters, AJ Mannucci Geophysical Research Letters 43 (7), 3317-3324, 2016 | 255 | 2016 |
| Sporadic E morphology from GPS‐CHAMP radio occultation DL Wu, CO Ao, GA Hajj, M de La Torre Juarez, AJ Mannucci Journal of Geophysical Research: Space Physics 110 (A1), 2005 | 228 | 2005 |
| Theoretical description of a bistatic system for ocean altimetry using the GPS signal GA Hajj, C Zuffada Radio Science 38 (5), 10-1-10-19, 2003 | 215 | 2003 |
| Lower troposphere refractivity bias in GPS occultation retrievals CO Ao, TK Meehan, GA Hajj, AJ Mannucci, G Beyerle Journal of Geophysical Research: Atmospheres 108 (D18), 2003 | 209 | 2003 |
| COSMIC GPS ionospheric sensing and space weather GA Hajj, LC Lee, X Pi, LJ Romans, WS Schreiner, PR Straus, C Wang Terrestrial atmospheric and oceanic sciences 11 (1), 235-272, 2000 | 204 | 2000 |
| Development of the global assimilative ionospheric model C Wang, G Hajj, X Pi, IG Rosen, B Wilson Radio Science 39 (1), 1-11, 2004 | 167 | 2004 |
| Development and application of GPS signal multipath simulator SH Byun, GA Hajj, LE Young Radio science 37 (6), 1-23, 2002 | 155 | 2002 |
| Data assimilation of ground GPS total electron content into a physics-based ionospheric model by use of the Kalman filter GA Hajj, BD Wilson, C Wang, X Pi, IG Rosen Radio Science 39 (1), 1-17, 2004 | 139 | 2004 |
Anthony MannucciJet Propulsion Laboratory, California Institute of TechnologyVerified email at jpl.nasa.gov