G. A. Hajj
- Astronomy and Astrophysics top 0.5%
- Aerospace Engineering top 0.1%
- Oceanography top 0.5%
- Atmospheric Science top 1%
- Global and Planetary Change top 2%
- Co-authors
- E. R. KursinskiL.J. RomansKenneth R. HardyJ. T. SchofieldR. P. LinfieldWilly BertigerS. S. LeroyA. J. Mannucci
- Topics
- GNSS positioning and interference (55 papers)Ionosphere and magnetosphere dynamics (54 papers)Geophysics and Gravity Measurements (43 papers)
- Partner nations
- United StatesUnited KingdomGermany
In The Last Decade
G. A. Hajj
73 papers receiving 5.4k citations
Hit Papers
Peers
Comparison fields: 5 of 65
- Astronomy and Astrophysics 4.2k
- Aerospace Engineering 3.4k
- Oceanography 2.5k
- Atmospheric Science 2.0k
- Global and Planetary Change 806
Countries citing papers authored by G. A. Hajj
This map shows the geographic impact of G. A. Hajj's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by G. A. Hajj with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites G. A. Hajj more than expected).
Fields of papers citing papers by G. A. Hajj
This network shows the impact of papers produced by G. A. Hajj. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by G. A. Hajj. The network helps show where G. A. Hajj may publish in the future.
Co-authorship network of co-authors of G. A. Hajj
This figure shows the co-authorship network connecting the top 25 collaborators of G. A. Hajj. A scholar is included among the top collaborators of G. A. Hajj based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with G. A. Hajj. G. A. Hajj is excluded from the visualization to improve readability, since they are connected to all nodes in the network.
All Works
| # | Work | Indexed citations |
|---|---|---|
| 1 | 3 | |
| 2 | Assessment of GPS Reflectometry from TechDemoSat-1 for Scatterometry and Altimetry Applications | 4 |
| 3 | A Chapman-Layers Ionspheric Model for Mars | 2 |
| 4 | An Assessment of the Scientific Potential and Operational Feasibility of Mars Crosslink Radio Science Observations | 3 |
| 5 | Evaluation of Moisture Retrievals Based on Open-Loop Radio Occultation Data from COSMIC and SAC-C | 1 |
| 6 | 51 | |
| 7 | 174 | |
| 8 | USC/JPL GAIM: A Real-Time Global Ionospheric Data Assimilation Model | 1 |
| 9 | 3-Dimensional Assimilative Ionospheric Modeling for Regions of Large TEC Gradient | 4 |
| 10 | 24 | |
| 11 | 22 | |
| 12 | Single Frequency Processing of GPS Radiooccultations | 1 |
| 13 | 74 | |
| 14 | Sensing the Atmosphere From a Low-Earth Orbiter Tracking GPS: Early Results and Lessons From the GPS/MET Experiment | 5 |
| 15 | 47 | |
| 16 | Higher-Order Ionospheric Effects on the GPS Observables and Means of Modeling Them | 18 |
| 17 | Accuracies of Atmospheric Profiles Obtained from GPS Occultations | 12 |
| 18 | Ionospheric Imaging from a Low Earth Orbiter Tracking GPS | 1 |
| 19 | 122 | |
| 20 | Effects of antenna orientation on GPS carrier phasebreakdown → | 520 |
About G. A. Hajj
G. A. Hajj is a scholar working on Oceanography, Astronomy and Astrophysics and Aerospace Engineering, having authored 76 papers that have together received 5.7k indexed citations. Recurring topics across this work include GNSS positioning and interference (55 papers), Ionosphere and magnetosphere dynamics (54 papers) and Geophysics and Gravity Measurements (43 papers). The work is most often cited by research in Astronomy and Astrophysics (4.2k citations), Oceanography (2.5k citations) and Aerospace Engineering (3.4k citations). G. A. Hajj has collaborated with scholars based in United States, United Kingdom and Germany. Frequent co-authors include E. R. Kursinski, L.J. Romans, Kenneth R. Hardy, J. T. Schofield, R. P. Linfield, Willy Bertiger, S. S. Leroy, A. J. Mannucci, Cinzia Zuffada and C. O. Ao. Their work appears in journals such as Science, Journal of Geophysical Research Atmospheres and Geophysical Research Letters.
Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.