Articles | Volume 17, issue 21
https://doi.org/10.5194/amt-17-6301-2024
https://doi.org/10.5194/amt-17-6301-2024
Research article
 | 
30 Oct 2024
Research article |  | 30 Oct 2024

An improved geolocation methodology for spaceborne radar and lidar systems

Bernat Puigdomènech Treserras and Pavlos Kollias

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Revised manuscript under review for GMD
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Cited articles

Abrams, M., Tsu, H., Hulley, G., Iwao, K., Pieri D., Cudahy, T., and Kargel, J.: The Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) after fifteen years, Review of global products, Journal of Applied Earth Observation and Geoinformation, 38, 292–301, https://doi.org/10.1016/j.jag.2015.01.013, 2015. 
Abrams, M., Crippen, R., and Fujisada, H.: ASTER Global Digital Elevation Model (GDEM) and ASTER Global Water Body Dataset (ASTWBD), Remote Sens., 12, 1156, https://doi.org/10.3390/rs12071156, 2020. 
Bamber, J. L., Griggs, J. A., Hurkmans, R. T. W. L., Dowdeswell, J. A., Gogineni, S. P., Howat, I., Mouginot, J., Paden, J., Palmer, S., Rignot, E., and Steinhage, D.: A new bed elevation dataset for Greenland, The Cryosphere, 7, 499–510, https://doi.org/10.5194/tc-7-499-2013, 2013. 
Battaglia, A., and Kollias, P.: Using ice clouds for mitigating the EarthCARE Doppler radar mispointing, IEEE T. Geosci. Remote, 53, 2079–2085, https://doi.org/10.1109/TGRS.2014.2353219, 2014. 
Braun, B. M., Sweetser, T. H., Graham, C., and Bartsch, J.: CloudSat's A-Train Exit and the Formation of the C-Train: An Orbital Dynamics Perspective, IEEE Aerospace Conference, Big Sky, MT, USA, 2–9 March 2019, IEEE, 1–10, https://doi.org/10.1109/AERO.2019.8741958, 2019.​​​​​​​ 
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Short summary
The paper presents a comprehensive approach to improve the geolocation accuracy of spaceborne radar and lidar systems, crucial for the successful interpretation of data from the upcoming EarthCARE mission. The paper details the technical background of the presented methods and various examples of geolocation analyses, including a short period of CloudSat observations when the star tracker was not operating properly and lifetime statistics from the CloudSat and CALIPSO missions.