Niger discharge from radar altimetry: bridging gaps between gauge and altimetry time series [PDF]
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 +5 more sources
Altimetry Method for an Interferometric Radar Altimeter Based on a Phase Quality Evaluation [PDF]
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
Evaluation of historic and operational satellite radar altimetry missions for constructing consistent long-term lake water level records [PDF]
A total of 13 satellite missions have been launched since 1985, with different types of radar altimeters on board. This study intends to make a comprehensive evaluation of historic and currently operational satellite radar altimetry missions for lake ...
S. Shu +8 more
doaj +1 more source
Joint analysis of coastal altimetry and high-frequency (HF) radar data: observability of seasonal and mesoscale ocean dynamics in the Bay of Biscay [PDF]
Land-based coastal high-frequency (HF) radar systems provide operational measurements of coastal surface currents (within 1–3 m depth) with high spatial (300 m–10 km) and temporal ( ≤ 1 h) sampling resolutions, while the ...
I. Manso-Narvarte +4 more
doaj +1 more source
Satellite radar altimetry for monitoring small rivers and lakes in Indonesia [PDF]
Remote sensing and satellite geodetic observations are capable of hydrologic monitoring of freshwater resources. Although satellite radar altimetry has been used in monitoring water level or discharge, its use is often limited to monitoring large rivers (
Y. B. Sulistioadi +7 more
doaj +1 more source
Time-evolving mass loss of the Greenland Ice Sheet from satellite altimetry [PDF]
Mass changes of the Greenland Ice Sheet may be estimated by the input–output method (IOM), satellite gravimetry, or via surface elevation change rates (dH/dt).
R. T. W. L. Hurkmans +6 more
doaj +1 more source
Combining satellite radar altimetry, SAR surface soil moisture and GRACE total storage changes for hydrological model calibration in a large poorly gauged catchment [PDF]
The availability of data is a major challenge for hydrological modelling in large parts of the world. Remote sensing data can be exploited to improve models of ungauged or poorly gauged catchments.
C. Milzow +2 more
doaj +1 more source
Radar altimeters are instruments carried on space missions and allow for determination of heights, particularly in oceans and ice sheets. The use of altimetry data on continental waters involves several challenges, such as the revisit frequency ...
Luana Kessia Lucas Alves Martins +3 more
doaj +1 more source
Real-time remote sensing driven river basin modeling using radar altimetry [PDF]
Many river basins have a weak in-situ hydrometeorological monitoring infrastructure. However, water resources practitioners depend on reliable hydrological models for management purposes. Remote sensing (RS) data have been recognized as an alternative to
S. J. Pereira-Cardenal +6 more
doaj +1 more source
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 +1 more source

