Results 51 to 60 of about 9,341 (230)
Geophysical Research Letters, Volume 53, Issue 18, 28 September 2026.Abstract Surface Water and Ocean Topography (SWOT) provides water surface elevation (WSE) that can constrain river hydraulics through data assimilation (DA), but basin‐scale impacts of assimilating real observations remain uncertain under heterogeneous availability and regulation.
Yeosang Yoon +4 more
wiley +1 more source
Technology Transfer of As-Built and Preliminary Surveys Using GPS, Soft Photogrammetry, and Video Logging; TR-446, 2002 [PDF]
, 2002 This research involved two studies: one to determine the local geoid to obtain mean sea level elevation from a global positioning system (GPS) to an accuracy of ±2 cm, and the other to determine the location of roadside features such as mile posts and ...
core
The Mexican gravimetric geoid: GGM06
, 2006 GGM06 is a gravimetric geoid model for Mexico calculated from a smaller but more reliable database of terrestrial gravimetry than the one used for its predecessor GGM05.
Sosa Gaytán, Manuel +3 more
core +1 more source
ETH-GQS: An estimation of geoid-to-quasigeoid separation over Ethiopia
Geodesy and Geodynamics, 2022 The determination of accurate orthometric or normal heights remains one of the main challenges for the geodetic community in Ethiopia. These heights are required for geodetic and geodynamic scientific research as well as for extensive engineering ...
Ephrem Y. Belay +3 more
doaj +1 more source
SWOT Observations Reveal Basin‐Scale Reservoir Operating Patterns
Geophysical Research Letters, Volume 53, Issue 18, 28 September 2026.Abstract The construction and operation of reservoirs have fundamentally modified the natural hydrograph globally. However, complex seasonal operating patterns remain opaque due to data scarcity, limiting the accuracy of hydrological modeling and water management.
Tan Chen +6 more
wiley +1 more source
The Mexican gravimetric geoid: GGM05
, 2005 GGM05 is the second gravimetric geoid model created by INEGI for Mexico with the main improvement of input data cleaning and the use of a more recent reference gravity field.
Sosa Gaytán, Manuel +3 more
core +1 more source
Reviews of Geophysics, Volume 64, Issue 3, September 2026.Abstract Understanding the coastal zone of the Antarctic Ice Sheet (AIS), where it interacts with the Southern Ocean and warmer air masses, is crucial for predicting Antarctica's influence on the global climate and sea level. This region has multiple tipping mechanisms that could trigger large, rapid, and potentially irreversible changes in the AIS ...
Kenichi Matsuoka +79 more
wiley +1 more source
Determination of a Gravimetric Geoid Model of Greece Using the Method of KTH
, 2010 The main purpose of this study is to compute a gravimetric geoid model of Greece using the least squares modification method developed at KTH. In regional gravimetric geoid determination, the modified Stokes' formula that combines local terrestrial data ...
J. D. Fairhead +7 more
core +1 more source
FITTING OF A TRANSFORMATION GEOID MODEL TO THE GRAVIMETRIC-GEOMETRIC GEOID MODEL OF BENIN CITY
FUDMA JOURNAL OF SCIENCES, 2022 The application of the transformation geoid model in Benin City has necessitated its fitting to the existing gravimetric-geometric geoid model of the study area. The transformation geoid model was determined using the Kotsakis (2008) model for the transformation of global geoid heights to local geoidal undulations. To obtain its accuracy, the root mean
Oduyebo, O. F., Ono, M. N., Eteje, S. O.
openaire +2 more sources
Assessing SWOT's Measurement Capabilities in the Complex Paraná River
Earth and Space Science, Volume 13, Issue 9, September 2026.Abstract Estimating water surface elevation (WSE) is crucial for understanding hydrological processes; however, many rivers remain insufficiently monitored due to the limitations of in situ gauge networks. The Surface Water and Ocean Topography (SWOT) mission, equipped with Synthetic Aperture Radar technology, enables global monitoring of WSE with high
E. Walker +7 more
wiley +1 more source