Results 51 to 60 of about 119,207 (215)
Definition and Realization of a Global Vertical Datum [PDF]
, 1994 The requirements for defining and realizing a global vertical datum (GVD) with a precision on the dm - or even cm - level has become essential now, due to the improved measurement accuracy provided by the space geodetic techniques.
Balasubramania, Nagarajan
core
Issues of terrestrial geodetic datum definition in VLBI data analysis
, 2023 The geodetic datum describes the absolute location, orientation and scale of the observed system with respect to a target frame. Since Very Long Baseline Interferometry (VLBI) observations only provide information on the relative relationships between ...
Böhm, Johannes; orcid: +4 more
core +2 more sources
Water Resources Research, Volume 62, Issue 10, October 2026.Abstract Wetlands play a crucial role in maintaining the global ecosystem balance, and determining the inundation dynamics is of great significance for understanding wetland ecosystems. Hydrodynamic models are effective tools for mapping the inundation dynamics; however, they are affected by uncertainties arising from environmental changes, including ...
Siyang Yao +6 more
wiley +1 more source
, 2012 This collaborative research data management planning project (hereafter the RDMP project) sought to help a collaborative group of researchers working on an EU FP7 staff exchange project (hereafter the EU project) to define and implement good research ...
Childs, Sue, McLeod, Julie
core
Unification of Geodetic Datum in international boundaries a case study of Malawi, Mozambique and Zambian boundaries [PDF]
, 2019 ThesisThe diversity of datums in use today and the technological advancements that have made possible global positioning measurements with sub-meter accuracies, require careful datum selection and careful conversion between coordinates in different ...
Silwembe, Andrew Mwalimu
core +1 more source
Transformation of GPS measurements in the Koice hollow into the national geodetic grid [PDF]
Acta Montanistica Slovaca, 1999 The paper deals with transformation procedures observed GPS (Global Positioning System) data from the World Geodetic System WGS-84 into the national grid datum S-JTSK and Bpv. GPS measurements are realized on the geodetic network in the Koice-hollow for
Molèíková Soòa +2 more
doaj
Evaluating SWOT Satellite Data With Gage Information in the United States and Canada
Water Resources Research, Volume 62, Issue 10, October 2026.Abstract The Surface Water and Ocean Topography (SWOT) satellite mission represents a transformative approach to water resources management, offering high‐resolution data on water‐surface elevations (WSE) and extents. This study evaluates SWOT WSE accuracy in the United States and Canada with in situ streamgage and lake and reservoir gage data.
M. E. Harlan +15 more
wiley +1 more source
Geodesy and Cartography, 2020 Machine learning algorithms have emerged as a new paradigm shift in geoscience computations and applications. The present study aims to assess the suitability of Group Method of Data Handling (GMDH) in coordinate transformation.
Bernard Kumi-Boateng, Yao Yevenyo Ziggah
doaj +1 more source
Impact of Global Warming‐Induced Sea‐Surface Salt Concentration Changes on Island Groundwater System
Water Resources Research, Volume 62, Issue 10, October 2026.Abstract Global warming is altering sea‐surface salt concentration (SSC) through intensified evaporation, shifted precipitation patterns, and accelerated melting of polar ice. Subsurface freshwater in oceanic islands is typically shaped like a thin lens due to limited land area and recharge, often the primary freshwater source for local communities and
Weijiang Yu, Yipeng Zhang
wiley +1 more source
Water Resources Research, Volume 62, Issue 10, October 2026.Abstract The 2024 Amazonian drought presented an unprecedented hydroclimatic anomaly. While prior research focused on atmospheric drivers and river impacts, the response of Amazon fluvial lake system (AFLs) has lacked large‐scale quantification. This study investigates the hydrological response of 838 fluvial lakes to the 2024 drought by integrating ...
Qicheng Liu +7 more
wiley +1 more source