Results 91 to 100 of about 624,911 (207)

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

Geosynchronous synthetic aperture radar: design and applications [PDF]

, 2009
Synthetic Aperture Radar (SAR) imaging from geosynchronous orbit has significant potential advantages over conventional low-Earth orbit (LEO) radars, but also challenges to overcome.
Bruno, Davide
core   +2 more sources

BASIC RADAR ALTIMETRY TOOLBOX AND RADAR ALTIMETRY TUTORIAL: A NEW SET OF TOOLS FOR ALL ALTIMETRY USERS

, 2014
Since 1991, several altimetry satellites have been launched, each satellite coming with its own, specific, data format. Moreover, high-level data were developed, using yet other formats.
Joël Dor, Jérôme Benveniste, Nicolas Picot, Didier Earith, Olivier Lauret, Vinca Rosmorduc, Er Niemeijer   +6 more
core  

Inland radar altimetry for intermediate scale water bodies with nadir specular echoes and a constellation of small satellites

, 2020
We previously reported (COASTALT Workshop 8, Lake Konstanz, 2017; 25-years..., Ponta Delgada, 2018) on the prevalence of quasi-specular echoes from intermediate scale (50m to 250 m) inland water bodies.
Abileah R, Vignudelli S, Scozzari A
core  

Assessment of the Potential of Spaceborne GNSS-R Interferometric Altimetry for Monthly Marine Gravity Anomaly

Remote Sensing
The Earth’s time-variable gravity field holds significant research and application value. However, satellite gravimetry missions such as GRACE and GRACE-FO face limitations in spatial resolution when detecting monthly gravity fields, while traditional ...
Lichang Duan, Weihua Bai, Junming Xia, Zhenhe Zhai, Feixiong Huang, Cong Yin, Ying Long, Yueqiang Sun, Qifei Du, Xianyi Wang, Dongwei Wang, Yixuan Sun   +11 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

Altimetry with GNSS Bistatic Radar

, 2013
For the past two decades, Global Navigation Satellite System (GNSS) signals have been explored in terms of Earth remote sensing. Most work has been done on the Global Positioning System (GPS) signals. GNSS signals are reflected off the surface of the Earth and can be received using a left hand polarized antenna which could offer a low cost alternative ...
openaire   +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

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