Results 51 to 60 of about 1,060 (148)

Nanosats for Radar Altimetry

, 2015
Radar altimeters such as TOPEX/Poseidon and Jason-2 measure the sea surface height as well as wave height and wind speed, providing key information about the ocean. The U.S. Navy previously launched the Geodesic Satellite (GEOSAT) and the GEOSAT Follow On (GFO), and has considered developing other missions.
Mroczek, Austin, Jacobs, Gregg
openaire   +1 more source

Global coastal attenuation of wind-waves observed with radar altimetry. [PDF]

Nat Commun, 2021
Passaro M, Hemer MA, Quartly GD, Schwatke C, Dettmering D, Seitz F.   +5 more
europepmc   +1 more source

Beyond Exact Repeat Missions: Embracing Geodetic Altimetry for Inland Water Monitoring and Modeling

Journal of Remote Sensing
Satellite radar altimetry has become an essential tool for hydrological research over the past 2 decades. Unlike imagery that quantifies the water dynamics from the horizontal dimension, altimetry observations deliver vertical information, which is ...
Liguang Jiang, Karina Nielsen, Ole B. Andersen   +2 more
doaj   +1 more source

Retrieving Sea Level and Freeboard in the Arctic: A Review of Current Radar Altimetry Methodologies and Future Perspectives

Remote Sensing, 2019
Spaceborne radar altimeters record echo waveforms over all Earth surfaces, but their interpretation and quantitative exploitation over the Arctic Ocean is particularly challenging. Radar returns may be from all ocean, all sea ice, or a mixture of the two,
Graham D. Quartly, Eero Rinne, Marcello Passaro, Ole B. Andersen, Salvatore Dinardo, Sara Fleury, Amandine Guillot, Stefan Hendricks, Andrey A. Kurekin, Felix L. Müller, Robert Ricker, Henriette Skourup, Michel Tsamados   +12 more
doaj   +1 more source

GNSS Reflectometry-Based Ocean Altimetry: State of the Art and Future Trends

Remote Sensing
For the past 20 years, Global Navigation Satellite System reflectometry (GNSS-R) technology has successfully shown its potential for remote sensing of the Earth’s surface, including ocean and land surfaces.
Tianhe Xu, Nazi Wang, Yunqiao He, Yunwei Li, Xinyue Meng, Fan Gao, Ernesto Lopez-Baeza   +6 more
doaj   +1 more source

Inland Water Level Monitoring from Satellite Observations: A Scoping Review of Current Advances and Future Opportunities

Remote Sensing
Inland water level and its dynamics are key components in the global water cycle and land surface hydrology, significantly influencing climate variability and water resource management.
Stylianos Kossieris, Valantis Tsiakos, Georgios Tsimiklis, Angelos Amditis   +3 more
doaj   +1 more source

Along‐Track Marine Geoid Resolution Enhancement With SWOT

Earth and Space Science
Satellite altimetry has been the major data source for marine geoid determination·and gravity recovery in recent decades. In general, altimetry‐derived geoid and gravity anomaly models are typically released with a 1' × 1' gridding interval.
Xu Chen, Shengjun Zhang, Ole Baltazar Andersen, Yongjun Jia   +3 more
doaj   +1 more source

River Water Level and Water Surface Slope Measurement From Spaceborne Radar and LiDAR Altimetry: Evaluation and Implications for Hydrological Studies in the Ganga River

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Satellite altimetry has revolutionized river monitoring, particularly for hydrologists working on river flow monitoring in sparsely or ungauged areas. Despite this, there is a lack of a comprehensive evaluation of radar and LiDAR altimeters with varying ...
Pankaj R. Dhote, Ankit Agarwal, Gaurish Singhal, Stephane Calmant, Praveen K. Thakur, Hind Oubanas, Adrien Paris, Raghavendra P. Singh   +7 more
doaj   +1 more source

Slope Correction for Ocean SAR Altimetry

Earth and Space Science
Since the 2010 launch of Cryosat‐2, a new generation of altimeters, referred to as SAR altimetry, has emerged and partially replaced the previous conventional altimeters known as Low Resolution Mode (LRM) altimetry.
Juliette Gamot, Marie‐Isabelle Pujol, Philippe Schaeffer, François Bignalet‐Cazalet, Emeline Cadier, Thomas Moreau   +5 more
doaj   +1 more source

Enhancing Chashma Barrage water level estimations with sentinel 3 radar altimetry

Discover Water
Satellite Radar altimetry has emerged as a powerful tool for monitoring inland water bodies including rivers, lakes, and coastal regions. However, challenges persist regarding its accuracy, particularly over complex terrains.
Tauqeer Ali, Arjumand Zaidi, Jasra Rehman, Saif Haider, Stefano Vignudelli, Farkhanda Noor, Shahryar Jamali, Muhammad Rashid, Muhammad Atiq Ur Rehman Tariq   +8 more
doaj   +1 more source