Results 91 to 100 of about 2,974 (193)

First In-Orbit Validation of Interferometric GNSS-R Altimetry: Mission Overview and Initial Results

open access: yesRemote Sensing
Sea surface height (SSH) serves as a fundamental geophysical parameter in oceanographic research. In 2023, China successfully launched the world’s first spaceborne interferometric GNSS-R (iGNSS-R) altimeter, which features dual-frequency multi-beam ...
Yixuan Sun   +16 more
doaj   +1 more source

Enhancing reservoir water level time series in the Mekong river basin by improving area-elevation curves and integrating multi-source satellite data

open access: yesJournal of Hydrology: Regional Studies
Study region: Mekong River Basin. Study focus: Accurately constructing long-term, high-frequency reservoir water levels is challenging due to limited altimetry data, frequent cloud contamination of optical imagery, and large biases in area-elevation (AE)
Yaoliang Chen   +6 more
doaj   +1 more source

Improved Bathymetry Estimation Using Satellite Altimetry-Derived Gravity Anomalies and Machine Learning in the East Sea

open access: yesJournal of Marine Science and Engineering
This study aims to improve the accuracy of bathymetry predicted by gravity-geologic method (GGM) using the optimal machine learning model selected from machine learning techniques.
Kwang Bae Kim, Jisung Kim, Hong Sik Yun
doaj   +1 more source

An investigation of the on-board microwave radiometer of satellite Altimetry for studying the atmosphere variability

open access: yesEarth, Planets and Space
Since its first launching, the ability of satellite Altimetry in providing reliable and accurate ocean geophysical information of the sea surface height (SSH), significant wave height (SWH), and wind speed has been proven by numerous researchers, as it ...
Noor Nabilah Abdullah   +6 more
doaj   +1 more source

Satellite altimetry for hydrological purpose

open access: yes, 2011
As a new spatial measuring technic developed in 1970s, altimetry was designed to determine the sea surface height based on spatial technology, electronic technology and microwave technology. It also plays an important role in geodesy and oceanography; meanwhile, it can provide all-weather and repetitious measurements in global region for the studying ...
openaire   +2 more sources

Observing the tidal pulse of rivers from wide-swath satellite altimetry. [PDF]

open access: yesNature
Hart-Davis MG   +8 more
europepmc   +1 more source

Improving coastal water level estimation by merging nadir-only satellite altimetry data into a hydrodynamic model. [PDF]

open access: yesEnviron Monit Assess
Bhuiyan SA   +5 more
europepmc   +1 more source

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