Results 61 to 70 of about 9,341 (230)
A Simple Method to Improve the Geoid from a Global Geopotential Model (or Coarse Geoid Estimation Using Only the Innermost Zone Contribution of Stokes's Formula) [PDF]
, 2002 This paper presents the results of curiosity-driven experiments to determine how well, if at all, only the innermost zone contribution of Stoke's formula can model the geoid for GPS height transformation.
Featherstone, Will
core
The Mexican gravimetric geoid: GGM10
, 2010 GGM10 is a gravimetric geoid model for Mexico computed by the General Direction of Geography and Environment at the INEGI. It covers the region from 14° to 33° in latitudes and from 86° to 119° in west longitude, with a grid resolution of 2.5 arc-minutes.
Sosa Gaytán, Manuel +2 more
core +1 more source
MARINE GEOID UNDULATION ASSESSMENT OVER SOUTH CHINA SEA USING GLOBAL GEOPOTENTIAL MODELS AND AIRBORNE GRAVITY DATA [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2016 Global geopotential models (GGMs) are vital in computing global geoid undulations heights. Based on the ellipsoidal height by Global Navigation Satellite System (GNSS) observations, the accurate orthometric height can be calculated by adding precise and ...
N. M. Yazid +6 more
doaj +1 more source
Journal of Advances in Modeling Earth Systems, Volume 18, Issue 9, September 2026.Abstract Global Navigation Satellite System (GNSS) airborne radio occultation (ARO) observations, collected during Atmospheric River Reconnaissance (AR Recon) campaigns, enhance AR sampling beyond traditional dropsondes. Assimilating ARO bending angles requires a forward operator accounting for ARO geometry and proper integration in a data assimilation
Ivette Hernández Baños +5 more
wiley +1 more source
The hybrid geoid of Bhutan: DRUKGEOID2022
, 2022 DRUKGEOID2022 is the official geoid model of Bhutan, covering the area from 88.5°E to 92.5°E in longitude and from 26.5°N to 28.5°N in latitude with a grid resolution of 0.02°.
Fernandes, Rui M. S., Bos, Machiel S.
core +1 more source
Near-zone Direct and Indirect Topographic Effects Based on the Rectangular Prism and Surface Element [PDF]
Journal of Geodesy and Geoinformation Science, 2019 Helmert’s second method of condensation is an effective method for terrain reduction in the geoid and quasi-geoid determinations. Condensing the masses outside the geoid to a surface layer on the geoid produces several forms of topographic effects ...
Jian MA,Ziqing WEI,Zhenghui YANG,Xiaogang LIU,Jianfeng JI
doaj +1 more source
Earth's Future, Volume 14, Issue 9, September 2026.Abstract Sea‐level rise is a major consequence of anthropogenic climate change, yet the timing when regional sea‐level change becomes detectable above natural variability depends on internal ocean dynamics. Most estimates of the time of emergence (ToE) rely on coarse‐resolution global climate models (GCMs), which may underestimate mesoscale and ...
Yu‐Kyeong Kang +6 more
wiley +1 more source
Mapping Global GNSS Vertical Velocities to Solid Earth Figure Change
Journal of Geophysical Research: Solid Earth, Volume 131, Issue 9, September 2026.Abstract The Earth's figure evolves in response to glacial isostatic adjustment (GIA), surface‐mass redistribution, and rotational and mantle‐driven processes. While temporal changes in the geoid's flattening are monitored through low‐degree gravity field harmonics, the geometric response of the solid Earth can be assessed independently from GNSS ...
C. Kotsakis
wiley +1 more source