Results 31 to 40 of about 6,073 (210)

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

A Path to Better Science Through Co‐Creation and Open Infrastructure

Perspectives of Earth and Space Scientists, Volume 7, Issue 1, December 2026.
Abstract Proprietary development solutions are often perceived as being delivered more quickly and easily than open methods, fueling the misconception that they inherently produce better overall outcomes. However, we argue that open development practices can lead to both efficient and maximally impactful outcomes.
Tasha Snow, Christopher Holdgraf, Wilson Sauthoff, Jessica Scheick, Ellianna Abrahams, Joanna Millstein, Sanjay Bhangar, Carl Boettiger, James Colliander, Luis Alberto Lopez Espinosa, Elizabeth Holmes, Joseph H. Kennedy, Julia S. Lowndes, Alex I. Mandel, P. Yuvi, Fernando Pérez, Joe‐Paul Swinski, Andy Teucher, Matthew R. Siegfried   +18 more
wiley   +1 more source

Interannual Variations of Precipitation Events at Dome Fuji Station, Antarctica

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 10, 28 May 2026.
Abstract Precipitation is key to the water budget of inland Antarctica, with extreme precipitation events strongly influencing snowfall and surface climatology. To investigate the contribution and trends of such events at Dome Fuji station (DF) in inland Antarctica, this study analyzed precipitation variability using the ERA5 product validated against ...
Kyohei Yamada, Jun Inoue, Naohiko Hirasawa, Kazutoshi Sato   +3 more
wiley   +1 more source

Performance of ICESat‐2 Precision Pointing Determination

Earth and Space Science, 2021
Global elevations are critical to understanding the Earth's dynamic processes and changing climate. These measurements are best acquired from a space‐based vantage point and are most accurate using laser altimetry technology.
Sungkoo Bae, Benjamin Helgeson, Michael James, Lori Magruder, Jonathan Sipps, Scott Luthcke, Taylor Thomas   +6 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

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

A First Look at the Snow/Ice Penetration Effect of SWOT Observations on Water Level of Global Glacial Lakes

Geophysical Research Letters, Volume 53, Issue 9, 16 May 2026.
Abstract The Surface Water and Ocean Topography (SWOT) mission promises quasi‐global monitoring of glacial lakes, yet the elevation difference arising from its Ka‐band radar penetrating lake snow/ice cover remains unquantified. This poses a challenge to assessing their level changes.
Shuangxiao Luo, Chunqiao Song, Pengfei Zhan, Jiayi Li, Li Peng   +4 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

Toward Constraining Ocean Estimates in Ice‐Covered Regions Using Sea Level Altimetry Data

Earth and Space Science, Volume 13, Issue 5, May 2026.
Abstract Estimates of ice‐covered oceans are difficult to constrain using in situ observations, particularly if one needs broad spatiotemporal coverage of subsurface properties. Here we explore the value of sea level (ζ $\zeta $) data from the laser altimeter on ICESat‐2 and multi‐mission radar altimeter products distributed by the Archiving ...
Rui M. Ponte, Mengnan Zhao, Ian Fenty, Ichiro Fukumori, Ou Wang   +4 more
wiley   +1 more source