Results 31 to 40 of about 436,480 (263)

Combining satellite radar altimetry, SAR surface soil moisture and GRACE total storage changes for hydrological model calibration in a large poorly gauged catchment [PDF]

open access: yesHydrology and Earth System Sciences, 2011
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

Quality analysis of water level series obtained by altimetric radar satellite along the São Francisco River

open access: yesRBRH, 2021
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]

open access: yesHydrology and Earth System Sciences, 2011
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

Arctic sea ice radar freeboard retrieval from the European Remote-Sensing Satellite (ERS-2) using altimetry: toward sea ice thickness observation from 1995 to 2021

open access: yesThe Cryosphere, 2023
. Sea ice volume's significant interannual variability requires long-term series of observations to identify trends in its evolution. Despite improvements in sea ice thickness estimations from altimetry during the past few years thanks to CryoSat-2 and ...
M. Bocquet   +6 more
semanticscholar   +1 more source

Satellite altimetry for Indian reservoirs

open access: yesWater Science and Engineering, 2021
Satellite radar altimetry has immense potential for monitoring fresh surface water resources and predicting the intra-seasonal, seasonal, and inter-annual variability of inundated surface water over large river basins.
Kaushlendra Verma   +4 more
doaj   +1 more source

River ice phenology and thickness from satellite altimetry: potential for ice bridge road operation and climate studies [PDF]

open access: yesThe Cryosphere, 2021
River ice is a key component of the cryosphere. Satellite monitoring of river ice is a rapidly developing area of scientific enquiry, which has wide-ranging implications for climate, environmental and socioeconomic applications.
E. Zakharova   +6 more
doaj   +1 more source

Unmanned Aerial System (UAS) observations of water surface elevation in a small stream: Comparison of radar altimetry, LIDAR and photogrammetry techniques

open access: yesRemote Sensing of Environment, 2020
Water Surface Elevation (WSE) is an important hydrometric observation, useful to calibrate hydrological models, predict floods, and assess climate change. However, the number of in-situ gauging stations is in decline worldwide.
Filippo Bandini   +7 more
semanticscholar   +1 more source

Automatic Detection of Inland Water Bodies along Altimetry Tracks for Estimating Surface Water Storage Variations in the Congo Basin

open access: yesRemote Sensing, 2021
Surface water storage in floodplains and wetlands is poorly known from regional to global scales, in spite of its importance in the hydrological and the carbon balances, as the wet areas are an important water compartment which delays water transfer ...
Frédéric Frappart   +9 more
doaj   +1 more source

River monitoring from satellite radar altimetry in the Zambezi River basin [PDF]

open access: yes, 2012
Satellite radar altimetry can be used to monitor surface water levels from space. While current and past altimetry missions were designed to study oceans, retracking the waveforms returned over land allows data to be retrieved for smaller water bodies or
Bauer-Gottwein, Peter   +4 more
core   +3 more sources

Satellite Remote Sensing of the Greenland Ice Sheet Ablation Zone: A Review

open access: yesRemote Sensing, 2019
The Greenland Ice Sheet is now the largest land ice contributor to global sea level rise, largely driven by increased surface meltwater runoff from the ablation zone, i.e., areas of the ice sheet where annual mass losses exceed gains.
Matthew G. Cooper, Laurence C. Smith
doaj   +1 more source

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