Results 61 to 70 of about 10,644 (229)

DeepRec: Global Terrestrial Water Storage Reconstruction Since 1941 Using Spatiotemporal‐Aware Deep Learning Model

open access: yesJournal of Geophysical Research: Machine Learning and Computation, Volume 3, Issue 1, February 2026.
Abstract Terrestrial water storage (TWS) plays an important role in describing the Earth system, as water availability is decisive for ecosystems and human development. Since 2002, the Gravity Recovery and Climate Experiment (GRACE) and its Follow‐On (GRACE‐FO) mission have measured TWS anomalies with unprecedented accuracy, enabling a leap in ...
Luis Q. Gentner   +5 more
wiley   +1 more source

Lake gravity anomalies from ICESat-2 laser altimetry and geodetic radar altimetry

open access: yesAdvances in Space Research
In the current most accepted global geopotential model, EGM2008, there are often data gaps in the source data used to compute the model over inland water. As a result, EGM2008 may be less reliable over lakes. Satellite altimetry has the  potential to estimate gravity anomalies and update EGM2008 over lakes.
Franze, Sarah E.   +3 more
openaire   +2 more sources

Advancing Near‐Real‐Time Flood Inundation Mapping in Australia

open access: yesWater Resources Research, Volume 62, Issue 2, February 2026.
Abstract Floods are the second‐most deadly natural hazard in Australia, following heatwaves. Monitoring flood extent and depth in near real‐time (NRT) is crucial to minimize loss of life and socio‐economic impacts. This study leverages advanced computing, data management systems, and high‐quality data, including river gauge data APIs and Australian ...
Jiawei Hou   +5 more
wiley   +1 more source

Mercury's Internal Structure [PDF]

open access: yes, 2018
We describe the current state of knowledge about Mercury's interior structure. We review the available observational constraints, including mass, size, density, gravity field, spin state, composition, and tidal response.
Hauck II, Steven A.   +4 more
core   +3 more sources

Comparing Snow Water Equivalent Estimations From Long Short‐Term Memory Networks and Physics‐Based Models in the Western United States

open access: yesWater Resources Research, Volume 62, Issue 2, February 2026.
Abstract In snowmelt‐dominated regions like the western U.S., mountain snowpacks supply 50%–70% of the total runoff. Accurate estimation of snow water equivalent (SWE) is critical for informed management of water resources, including reservoir operations, flood risk assessments, and drought mitigation. However, the spatial variability and complexity of
Madeleine C. Burns, Reed M. Maxwell
wiley   +1 more source

The Skylab radar altimeter [PDF]

open access: yes, 1972
A summary of the significant hardware characteristics of the S-193 altimeter experiment portion of the 1973 Skylab Mission is presented. A detailed discussion of the altimetry, oceanographic, and instrumentation technology objectives are presented along ...
Mcgoogan, J. T., Stanley, H. R.
core   +1 more source

Dynamic Boundaries of Antarctic Active Subglacial Lakes Reveal Underestimated Water Volume Change and Overestimated Lakebed Active Area

open access: yesGeophysical Research Letters, Volume 53, Issue 2, 28 January 2026.
Abstract This study revisited 158 documented active subglacial lakes across Antarctica, applying a height‐change anomaly delineation algorithm to CryoSat‐2 and ICESat‐2 satellite altimetry data to assemble a 14.75‐year (2010.5–2025.25) time series of active subglacial lake dynamics.
W. Sauthoff   +3 more
wiley   +1 more source

InSAR observations of ice elevation and velocity fluctuations at the Flade Isblink ice cap, eastern North Greenland [PDF]

open access: yes, 2010
The 8500 km(2) Flade Isblink ice cap (FIIC) (81 degrees 15'N, 15 degrees 0'W) is the largest ice cap in Greenland. We use repeat-pass interferometric synthetic aperture radar (InSAR) techniques to investigate the form and flow of the FIIC.
Andrew Shepherd   +46 more
core   +1 more source

Laser altimetry surveying

open access: yes, 2006
Sistem za snimanje iz vazduha poznat kao LiDAR sistem (Light Detection and Ranging), predstavalja relativno nov način za prikupljanje podataka koji obezbeđuje veliki broj informacija o objektima na površini zemlje kao i o zemljišnim oblicima sa velikom gustinom trodimenzionalnih koordinata tačaka, omogućavajući visoki kvalitet predstavljanja snimljene ...
Nestorov, Ivan   +2 more
openaire   +1 more source

The Geoscience Laser Altimetry/Ranging System (GLARS) [PDF]

open access: yes
The Geoscience Laser Altimetry Ranging System (GLARS) is a highly precise distance measurement system to be used for making extremely accurate geodetic observations from a space platform.
Abshire, J. B.   +4 more
core   +1 more source

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