Results 81 to 90 of about 1,535 (174)

Assessing canopy height measurements from ICESat-2 and GEDI orbiting LiDAR across six different biomes with G-LiHT LiDAR

Environmental Research: Ecology
The height of woody plants is a defining characteristic of forest and shrubland ecosystems because height responds to climate, soil and disturbance history.
Qiuyan Yu, Michael G Ryan, Wenjie Ji, Lara Prihodko, Julius Y Anchang, Njoki Kahiu, Abid Nazir, Jingyu Dai, Niall P Hanan   +8 more
doaj   +1 more source

Analysis of ICESat‐2 Data Acquisition Algorithm Parameter Enhancements to Improve Worldwide Bathymetric Coverage

Earth and Space Science
A major advance in global bathymetric observation occurred in 2018 with the launch of NASA’s ICESat‐2 satellite, carrying a green‐wavelength, photon‐counting lidar, the Advanced Topographic Laser Altimeter System (ATLAS). Although bathymetric measurement
James T. Dietrich, Ann Rackley Reese, Aimée Gibbons, Lori A. Magruder, Christopher E. Parrish   +4 more
doaj   +1 more source

Quantifying Volumetric Scattering Bias in ICESat‐2 and Operation IceBridge Altimetry Over Greenland Firn and Aged Snow

Earth and Space Science
The Ice, Cloud, and Land Elevation Satellite‐2 (ICESat‐2) mission has collected surface elevation measurements for over 5 years. ICESat‐2 carries an instrument that emits laser light at 532 nm, and ice and snow absorb weakly at this wavelength.
Zachary Fair, Mark Flanner, Tom Neumann, Carrie Vuyovich, Benjamin Smith, Adam Schneider   +5 more
doaj   +1 more source

Creation of ICESat-2 Footprint Level Global Geodetic Control Points Using Crossover Analysis

Remote Sensing
Precise measurements of the Earth’s surface are possible using satellite laser altimetry data, as demonstrated by NASA’s ICEsat-2 mission. Recently, the vertical accuracy of ICESat-2 data has been validated to
Amy Neuenschwander, Eric Guenther, Lori Magruder, Jonathan Sipps   +3 more
doaj   +1 more source

Characterizing ICESat‐2 Snow Depths Over the Boreal Forests and Tundra of Alaska in Support of the SnowEx 2023 Campaign

Water Resources Research
Recent studies show that the Ice, Clouds, and Land Elevation Satellite‐2 (ICESat‐2) can achieve decimeter‐level accuracy over forested and mountainous sites in the western United States, as well as over the glaciers of Alaska.
Zachary Fair, Carrie Vuyovich, Thomas Neumann, Chrisopher F. Larsen, Svetlana Stuefer, Megan Mason, Lora May   +6 more
doaj   +1 more source

Assessing Vertical Accuracy and Spatial Coverage of ICESat-2 and GEDI Spaceborne Lidar for Creating Global Terrain Models

Remote Sensing
Digital Elevation Models (DEMs) are a necessity for modelling many large-scale environmental processes. In this study, we investigate the potential of data from two spaceborne lidar altimetry missions, ICESat-2 and GEDI—with respect to their vertical ...
Maarten Pronk, Marieke Eleveld, Hugo Ledoux   +2 more
doaj   +1 more source

Substantial potential of ICESat-2 photon-counting laser altimetry for reconstructing the lake water depth on the Tibetan Plateau

International Journal of Digital Earth
The littoral zone is crucial in the aquatic ecosystem of lakes, and water depth is often insufficient when using the traditional zigzag echo-sounding method.
Baojin Qiao, Tianjiao Du, Jianting Ju, Liping Zhu   +3 more
doaj   +1 more source

Optimization of automated sea-ice melt-pond-depth determination in ICESat-2 altimeter data with the Density-Dimension Algorithm for bifurcating sea-ice reflectors using airborne campaign data. [PDF]

J Glaciol
Trantow T, Herzfeld U, Vanderwilt M, Saylam K, Kurtz N, Han H, Tilling R.   +6 more
europepmc   +1 more source

Global marine gravity field models at 1-arcminute resolution derived from optimized fusion of ICESat-2 along-track and cross-track measurements. [PDF]

Sci Data
Liu X, Xu Y, Peng H, Li Z, Bian S.
europepmc   +1 more source

Investigating ICESat-2 ATL08 Terrain Height Estimation Performance and Affecting Factors: The Impact of Land Cover, Slope, and Acquisition Time. [PDF]

Sensors (Basel)
Akturk E, Altunel AO, Dogan S.
europepmc   +1 more source