Results 51 to 60 of about 17,653,975 (206)

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

Calculation of Deflection of Vertical and Gravity Anomalies Over the South China Sea Derived from ICESat-2 Data

Frontiers in Earth Science, 2021
The Ice, Cloud, and land Elevation Satellite-2 (ICESat-2) satellite uses a synchronized multi-beam photon-counting method to collect data from three pairs of synchronous ground tracks.
Defu Che, Hang Li, Shengjun Zhang, Baodong Ma   +3 more
doaj   +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

Improved workflow for customized ICESat-2 ATL06 elevations captures seasonal mountain snow depths at sub-kilometer scale [PDF]

The Cryosphere
Mountain snowpacks are a critical global water resource, providing freshwater to more than a billion people worldwide. Estimates of snow distribution across mountain watersheds are dependent on sparse in situ observations and spatio-temporally limited ...
K. Zikan, E. M. Enderlin, H.-P. Marshall, S. O'Neel   +3 more
doaj   +1 more source

Observing Waves in Sea Ice With ICESat‐2

Geophysical Research Letters, 2020
AbstractThe coupled interaction of ocean surface waves and sea ice is important in determining the thermodynamic and dynamic properties of sea ice and its relationship to the ocean and atmosphere. Wave‐ice interactions create the marginal ice zone (MIZ), a region critically important for ecology, transportation, and the polar energy budget.
C. Horvat, Ed Blanchard‐Wrigglesworth, A. Petty   +2 more
openaire   +1 more source

The Potential of ICESat-2 to Identify Carbon-Rich Peatlands in Indonesia [PDF]

Remote Sensing, 2020
Peatlands in Indonesia are one of the primary global storages for terrestrial organic carbon. Poor land management, drainage, and recurrent fires lead to the release of huge amounts of carbon dioxide. Accurate information about the extent of the peatlands and its 3D surface topography is crucial for assessing and quantifying this globally relevant ...
Anna Berninger, Florian Siegert
openaire   +2 more sources

Ensuring globally the TanDEM-X height accuracy: Analysis of the reference data sets ICESat, SRTM and KGPS-tracks

, 2009
The TanDEM-X mission will derive a global digital elevation model (DEM) with satellite SAR interferometry. Height references play an important role to ensure the required height accuracy of 10m absolute and 2m relative for 90% of the data.
Roth, Achim, M. Huber, Felbier, Andreas, Huber, Martin, A. Felbier, A. Wendleder, Habermeyer, Martin, Wendleder, Anna, B. Wessel, D. Kosmann, M. Habermeyer, V. Schwieger, A. Roth, Wessel, Birgit, Kosmann, Detlev, Schwieger, Volker   +15 more
core   +1 more source

Advancing High‐Resolution Lake Bathymetry Reconstruction Through Geomorphologically Informed Deep Learning in High Mountain Asia

Water Resources Research, Volume 62, Issue 7, July 2026.
Abstract Accurate three‐dimensional (3D) lake bathymetry reconstruction is critical for water resources assessment and hydrological modeling yet remains constrained by data scarcity and oversimplified geometric assumptions. To address these challenges, we propose the Geomorphologically informed deep learning (GIDL) framework for high‐resolution 3D lake
Minglei Hou, Jiamu Chen, Jiahua Wei, Yang Shi, Wenqian Zhang, Shengling Hou, Zhen Qiao, Jianshi Zhao   +7 more
wiley   +1 more source

On‐Orbit Radiometric Performance on ICESat‐2

Earth and Space Science, 2021
NASA's ICESat‐2 mission measures Earth's elevation with the Advanced Topographic Laser Altimeter System (ATLAS), a 6‐beam photon‐counting laser altimeter.
Aimée Gibbons, Thomas Neumann, David Hancock, Kaitlin Harbeck, Jeffrey Lee   +4 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