Results 41 to 50 of about 1,409 (159)

Assessment of SWOT for Monitoring Ice‐Marginal Lake Water Levels in Greenland

Geophysical Research Letters, Volume 53, Issue 5, 16 March 2026.
Abstract The Surface Water and Ocean Topography (SWOT) satellite mission provides a powerful data set for monitoring global surface water resources. However, its performance for monitoring ice‐marginal lakes in Greenland remains unknown. Due to the scarcity of in situ measurements, this study evaluated the reliability of ice‐marginal lake elevations ...
Xiaoyi Shen, Yubin Fan, Stephen J. Livingstone, Chang‐Qing Ke   +3 more
wiley   +1 more source

GEDI: A New LiDAR Altimetry to Obtain the Water Levels of More Lakes on the Tibetan Plateau

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2023
Remote sensing is an effective means for lake water level monitoring on the Tibetan Plateau (TP). The purpose of this study is to estimate water levels of lakes on the TP using the Global Ecosystem Dynamics Investigation (GEDI) and Cloud and Land ...
Juan Wu, Chang-Qing Ke, Yu Cai, Vahid Nourani, Jun Chen, Zheng Duan   +5 more
doaj   +1 more source

Quantifying river morphological changes using multi‐satellite observations and in situ measurements

Earth Surface Processes and Landforms, Volume 51, Issue 3, March 2026.
This study integrates optical, radar and altimetry satellite data with river gauge measurements to estimate periodically submerged riverbed topography and quantify morphological change. By linking how often water covers the riverbed with water‐level variations, erosion and deposition patterns are mapped across a reach of Jamuna River.
Tek Narayan Bhattarai, Antonio Moreno‐Rodenas, Sanjay Giri, Maarten Bakker, Amgad Omer, Allen Bateman   +5 more
wiley   +1 more source

Quantifying Surface‐Height Change Over a Periglacial Environment With ICESat‐2 Laser Altimetry

Earth and Space Science, 2021
We use Ice, Cloud, and land Elevation Satellite 2 (ICESat‐2) laser altimetry crossovers and repeat tracks collected over the North Slope of Alaska to estimate ground surface‐height change due to the seasonal freezing and thawing of the active layer.
R. J. Michaelides, M. B. Bryant, M. R. Siegfried, A. A. Borsa   +3 more
doaj   +1 more source

Local Geoid height calculations with GNSS, airborne, and spaceborne Lidar data

Egyptian Journal of Remote Sensing and Space Sciences, 2023
Determining the exact position of objects on the Earth’s surface is extremely important. The general purpose of this study is to calculate local geoid and orthometric heights of points obtained from ICESat-2/ATLAS, airborne LIDAR, and GNSS/CORS data and ...
Muge Agca, Ali Ihsan Daloglu
doaj   +1 more source

Sensitivity of Flood Extent and Population Exposure to Variations in Bathymetry Across a Shallow Continental Shelf Lagoon

Journal of Geophysical Research: Oceans, Volume 131, Issue 3, March 2026.
Abstract Bathymetry is a critical input to storm surge models on coastlines fronted by lagoon systems, yet few studies explore how variations in bathymetry influence flood impacts, flooded extent, and exposed population across these globally widespread morphologies.
Zaid Al‐Attabi, Siddharth Narayan, Anthony Campbell, Ananth Wuppukondur, Daystar Babanawo, Yicheng Xu, Nathan Thomas, Lola Fatoyinbo, David Lagomasino   +8 more
wiley   +1 more source

Impacts of Temperature‐ and Stress‐Dependent Rheology on Ice‐Shelf‐Front Bending

Journal of Geophysical Research: Earth Surface, Volume 131, Issue 3, March 2026.
Abstract Classical treatments of ice‐shelf bending suggest that shelf fronts should bend downwards, due to the distribution of hydrostatic water pressure at the front. However, LiDAR data show several instances of upward‐bending ice‐shelf fronts. While this phenomenon has often been attributed to a buoyant force from a submerged ice bench, recent work ...
Emily C. Glazer, W. Roger Buck
wiley   +1 more source

Towards global spaceborne lidar biomass: Developing and applying boreal forest biomass models for ICESat-2 laser altimetry data

Science of Remote Sensing
Space-based laser altimetry has revolutionized our capacity to characterize terrestrial ecosystems through the direct observation of vegetation structure and the terrain beneath it.
A. Neuenschwander, L. Duncanson, P. Montesano, D. Minor, E. Guenther, S. Hancock, M.A. Wulder, J.C. White, M. Purslow, N. Thomas, A. Mandel, T. Feng, J. Armston, J.R. Kellner, H.E. Andersen, L. Boschetti, P. Fekety, A. Hudak, J. Pisek, N. Sánchez-López, K. Stereńczak   +20 more
doaj   +1 more source

Using ICESat-2 to Estimate and Map Forest Aboveground Biomass: A First Example

Remote Sensing, 2020
National Aeronautics and Space Administration’s (NASA’s) Ice, Cloud, and land Elevation Satellite-2 (ICESat-2) provides rich insights over the Earth’s surface through elevation data collected by its Advanced Topographic Laser Altimeter System (ATLAS ...
Lana L. Narine, Sorin C. Popescu, Lonesome Malambo   +2 more
doaj   +1 more source

A noise removal algorithm based on adaptive elevation difference thresholding for ICESat-2 photon-counting data

International Journal of Applied Earth Observations and Geoinformation, 2023
Ice, Cloud, and Land Elevation Satellite-2 (ICESat-2) has shown great potential for near-shore bathymetry. Unavoidably, the photon data acquired has a lot of noise.
Bikang Wang, Yi Ma, Jingyu Zhang, Huanwei Zhang, Haitian Zhu, Zihao Leng, Xuechun Zhang, Aijun Cui   +7 more
doaj   +1 more source