Results 11 to 20 of about 436,480 (263)
Niger discharge from radar altimetry: bridging gaps between gauge and altimetry time series [PDF]
Hydrology and Earth System Sciences, 2019 The Niger River represents a challenging target for deriving discharge from spaceborne radar altimeter measurements, particularly since most terrestrial gauges ceased to provide data during the 2000s. Here, we propose deriving altimetric rating curves by
S. Schröder +7 more
doaj +6 more sources
Remote Sensing, 2021 Radar altimetry is now commonly used to provide long-term monitoring of inland water levels in complement to or for replacing disappearing in situ networks of gauge stations.
Frédéric Frappart +7 more
doaj +4 more sources
Global coastal attenuation of wind-waves observed with radar altimetry [PDF]
Nat Commun, 2021 Coastal studies of wave climate and evaluations of wave energy resources are mainly regional and based on the use of computationally very expensive models or a network of in-situ data.
M. Passaro +5 more
semanticscholar +2 more sources
Research on Radio Altimetry in Urban Environments Based on Electromagnetic Simulation Echo Modeling Technology [PDF]
SensorsAs the low-altitude economy develops rapidly, precise radar altimetry is crucial for ensuring the safety and reliability of drone flights. In the context of urban radio detection, the presence of numerous buildings and ground surfaces gives rise to ...
Jian Xiong +4 more
doaj +2 more sources
Estimation of Arctic Sea Ice Thickness from Chinese HY-2B Radar Altimetry Data
Remote Sensing, 2023 Sea ice thickness (SIT) is an important parameter in the study of climate change. During the past 20 years, satellite altimetry has been widely used to observe sea ice thickness.
Maofei Jiang +3 more
doaj +2 more sources
Greenland Ice Sheet Mass Balance (1992–2020) From Calibrated Radar Altimetry
Geophysical Research Letters, 2021 We present the first 1992–2020 record of Greenland Ice Sheet (GrIS) mass balance derived from multisatellite Ku‐band altimetry. We employ an empirical approach as an alternative detailed to radar‐propagation modeling, and instead convert elevation ...
S. Simonsen +3 more
semanticscholar +3 more sources
Remote Sensing, 2018 Radar altimetry provides unique information on water stages of inland hydro-systems. In this study, the performance of seven altimetry missions, among the most commonly used in land hydrology (i.e., European Remote-Sensing Satellite-2 (ERS-2 ...
Cassandra Normandin +8 more
doaj +2 more sources
Altimetry Method for an Interferometric Radar Altimeter Based on a Phase Quality Evaluation [PDF]
Sensors, 2023 A radar altimeter (RA) is useful to improve autonomous functions such as landing guidance or navigation control of an aircraft. To ensure more precise and safer flights by aircraft, an interferometric RA (IRA) capable of measuring the angle of a target ...
Jong-Soo Ha, Sung-Yong Hong
doaj +2 more sources
Remote Sensing, 2018 Radar altimetry is now commonly used for the monitoring of water levels in large river basins. In this study, an altimetry-based network of virtual stations was defined in the quasi ungauged Ogooué river basin, located in Gabon, Central Africa, using ...
Sakaros Bogning +10 more
doaj +2 more sources
Arctic Ocean Sea Level Record from the Complete Radar Altimetry Era: 1991-2018
Remote Sensing, 2019 In recent years, there has been a large focus on the Arctic due to the rapid changes of the region. Arctic sea level determination is challenging due to the seasonal to permanent sea-ice cover, lack of regional coverage of satellites, satellite ...
S. Rose +4 more
semanticscholar +3 more sources