Results 81 to 90 of about 2,359 (214)
Analysis and Accuracy Assessment of a New Global Nearshore ICESat‐2 Bathymetric Data Product
Earth and Space Science, Volume 12, Issue 8, August 2025.Abstract Although designed primarily for cryospheric science objectives, NASA's ICESat‐2 satellite, which launched in 2018, quickly became recognized as the world's first spaceborne bathymetric lidar. Initially, there was no dedicated bathymetric data product for the mission, so researchers interested in using ICESat‐2 bathymetry developed their own ...
Christopher E. Parrish +5 more
wiley +1 more source
Global Assessment of Lake Surface Morphology and Its Impact on Water Volume Estimation
Water Resources Research, Volume 61, Issue 7, July 2025.Abstract Lake surface morphology, an essential yet underexplored feature of hydrological systems, remains poorly understood, including its effects on water volume estimation. This study investigates north‐south surface profiles of 147 lakes worldwide using ICESat‐2 altimetry data (2018–2024).
Jing Zhang +3 more
wiley +1 more source
DFHRS-based computation of quasi-geoid of Latvia
Geodesy and Cartography, 2013 In geodesy, civil engineering and related fields high accuracy coordinate determination is needed, for that reason GNSS technologies plays important role.
Inese Janpaule +4 more
doaj +1 more source
Detection of Landslide‐Generated Tsunami by Shipborne GNSS Precise Point Positioning
Geophysical Research Letters, Volume 52, Issue 8, 28 April 2025.Abstract Precise point positioning (PPP) of ships using Global Navigation Satellite System (GNSS) data reveals the precise movements of marine vessels. This method may quantify anomalies in sea surface height with implications for oceanographic monitoring, exploration, and tsunami warning. The GNSS PPP data from the R/V Sikuliaq, a research ship of the
Adam E. Manaster +4 more
wiley +1 more source
Measuring the Water Level Datum Relative to the Ellipsoid During Hydrographic Survey [PDF]
, 2011 Hydrographic surveys are referenced vertically to a local water level “chart” datum. Conducting a survey relative to the ellipsoid dictates a datum transformation take place before the survey is used for current navigational products.
Rice, Glen, Riley, Jack
core +1 more source
Monitoring Water From Space: An Illustration in Death Valley, California
Geophysical Research Letters, Volume 52, Issue 5, 16 March 2025.Abstract Climate change and human activity are dramatically reshaping how water is distributed on Earth. High quality observations and products that bridge the gap between low‐level data and actionable information are needed to support the understanding of current and future water availability. Two new developments are addressing these needs.
B. Buzzanga +6 more
wiley +1 more source
Comments on hydrographic and topographic LIDAR acquisition and merging with multibeam sounding data acquired in the Olympic Coast National Marine Sanctuary [PDF]
, 2006 In April 2005, a SHOALS 1000T LIDAR system was used as an efficient alternative for safely acquiring data to describe the existing conditions of nearshore bathymetry and the intertidal zone over an approximately 40.7 km2 (11.8 nm2) portion of hazardous ...
Intelmann, Steven S.
core
Species‐By‐Species Pattern Analysis of Coastal Dune Vegetation
Journal of Geophysical Research: Biogeosciences, Volume 130, Issue 2, February 2025.Abstract Vegetation is crucial for stabilizing and developing coastal dunes. Different plant species exhibit different spatial distributions which reflect their environmental role and adaptation strategy. This study aims to provide a fine‐scale species‐by‐species analysis of vegetation spatial patterns on coastal dunes within the San Rossore–Migliarino–
D. Demichele +3 more
wiley +1 more source
FUTY Journal of the Environment, 2011 As a result of wide spread use of satellite based positioning techniques, especially Global Positioning System (GPS), a greater attention has been focused on precise determination of geoid models with an aim to replace the classical leveling with Global Navigation Satellite System (GNSS) measurements.
Opaluwa, YD, Adejare, QA
openaire +3 more sources
Earth Surface Processes and Landforms, Volume 50, Issue 1, January 2025.An updated model of ice thickness is retrieved for the Indren Glacier (Northwestern Italian Alps) through GPR data constraints. Remote sensing data and temperature analyses are used to reconstruct the ice thickness variations over the last two decades approximately.
Valeria Strallo +4 more
wiley +1 more source