Results 41 to 50 of about 4,466 (225)

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

Evaluation of the Global Multi-Resolution Terrain Elevation Data 2010 (GMTED2010) Using ICESat Geodetic Control [PDF]

, 2011
Supported by NASA's Earth Surface and Interior (ESI) Program, we are producing a global set of Ground Control Points (GCPs) derived from the Ice, Cloud and land Elevation Satellite (ICESat) altimetry data.
Boy, Jean-Paul, Carabajal, Claudia C., Danielson, Jeffrey J., Gesch, Dean B., Harding, David J., Suchdeo, Vijay P.   +5 more
core   +4 more sources

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

Observation and Coordination Needs for Current, Near‐Future, and Next Generation Earth‐Observing SAR Systems

Earth and Space Science, Volume 13, Issue 5, May 2026.
Abstract This paper summarizes an evaluation by experts of how coordination of Earth‐observing Synthetic Aperture Radar (SAR) missions among the world's space agencies could advance toward game‐changing scientific discoveries and fully realizing SAR's practical capability to address many issues facing society.
Cathleen E. Jones, Ake Rosenqvist, Björn Rommen, Magdalena Fitrzyk, Eric Rignot, Bernd Scheuchl, Yujie Zheng, Andrew Hooper, Mark Simons, Tomokazu Kobayashi, Paul Siqueira, Maurizio Santoro, Takeo Tadono, Laura Hess, Heather McNairn, Laura Frulla, Malin Johansson, Wolfgang Dierking, Line Rouyet, Annett Bartsch, Paco Lopez Dekker, Johnny A. Johannessen   +21 more
wiley   +1 more source

Evaluating and comparing the performance of ICESat-2 and GEDI data for estimating aboveground biomass in mangroves

International Journal of Digital Earth
The launch of the ICESat-2 and GEDI spaceborne LiDAR missions has provided new opportunities for large-scale estimation of mangrove aboveground biomass density (AGBD); however, their footprint-scale performance remains unclear.
Jianan Yu, Sheng Nie, Wenjie Liu, Zhongyi Sun, Cheng Wang, Xiaohuan Xi, Xiaoxiao Zhu, Mengyang Fang   +7 more
doaj   +1 more source

ICESat GLAS Altimetry Measurements: Received Signal Dynamic Range and Saturation Correction [PDF]

, 2017
NASAs Ice, Cloud, and land Elevation Satellite (ICESat), which operated between 2003 and 2009, made the first satellite-based global lidar measurement of Earths ice sheet elevations, sea-ice thickness and vegetation canopy structure.
Abshire, James B., Borsa, Adrian A., Brunt, Kelly M., Dimarzio, John P., Fricker, Helen A., Harding, David J., Neumann, Gregory A., Paolo, Fernando S., Sun, Xiaoli, Yi, Donghui   +9 more
core   +2 more sources

Mechanisms of Surface Meltwater Ponding and Drainage on the Greenland Ice Sheet Revealed Using SkySat Imagery and Deep Learning

AGU Advances, Volume 7, Issue 2, April 2026.
Abstract Surface meltwater impacts Greenland Ice Sheet mass balance indirectly by reducing albedo and promoting hydrofracture. However, fully understanding both processes requires accurate mapping of small‐scale features such as ponds, channels, and moulins that govern meltwater formation and drainage. Here we investigate surface water dynamics at high
J. C. Ryan, R. T. Datta, S. W. Cooley
wiley   +1 more source

Biases Analysis and Calibration of ICESat-2/ATLAS Data Based on Crossover Adjustment Method

Remote Sensing, 2022
The new-generation photon-counting laser altimeter aboard the Ice, Cloud, and Land Elevation Satellite-2 (ICESat-2) has acquired unprecedented high-density laser data on the global surface.
Tao Wang, Yong Fang, Shuangcheng Zhang, Bincai Cao, Zhenlei Wang   +4 more
doaj   +1 more source

Radiative Transfer Through Clouds and Its Applications in Support of the Ice, Cloud, and Land Elevation Satellite-2 (ICESat-2) Mission [PDF]

, 2012
The Greenland and Antarctic ice sheets, which contain enough ice to raise sea level by about 7 and 60 m, respectively, are losing mass at an increasing rate.
Marshak, Alexander, Yang, Yuekui
core   +1 more source

Runoff Capture by Sea Level Rise Alters the Area, Geometry, and Quantity of Coastal Catchments

Water Resources Research, Volume 62, Issue 4, April 2026.
Abstract Coastal catchments, which drain directly to the sea, mediate material fluxes across the land‐sea interface and support species diversity and economic activity in coastal zones. Here, we explore the evolution of coastal catchment divides at the local to global scale from 2000 to 2120 under multiple SLR scenarios using state‐of‐the‐art digital ...
James W. Heiss, Christopher J. Russoniello   +1 more
wiley   +1 more source