Results 11 to 20 of about 1,335 (132)

First Assessment of ICESat‐2 Summer Sea Ice Freeboard With Airborne Validation

open access: yesGeophysical Research Letters
ICESat‐2 has demonstrated solid performance in retrieving sea ice freeboard during winter, when sea ice surface types are well‐defined and leads provide reliable sea surface height references.
Ellen M. Buckley   +6 more
doaj   +2 more sources

ICESat‐2 Precision Orbit Determination

open access: yesEarth and Space Science, 2021
The ICESat‐2 Precision Orbit Determination (POD) system computes the precise position of the laser altimeter instrument in inertial space, a measurement necessary for accurate geolocation of individual photon surface returns.
T. C. Thomas   +4 more
doaj   +1 more source

ICESat-2 Bathymetric Signal Reconstruction Method Based on a Deep Learning Model with Active–Passive Data Fusion

open access: yesRemote Sensing, 2023
When carrying out SDB (satellite-derived bathymetry) in island area based on ICESat-2 (Ice, Cloud, and land Elevation Satellite 2) data, it is often found that the ICESat-2 bathymetric signals are partially missing due to the influence of thick aerosols ...
Zihao Leng   +3 more
doaj   +1 more source

Uncertainties on the combined use of ICESat and ICESat-2 observations to monitor lake levels

open access: yesFrontiers in Water, 2023
Lake water level is an important variable to indicate lake hydrological balances and climate change impacts. Benefiting from the launch of the laser altimeters ICESat and ICESat-2, higher spatial-resolution elevation measurements have opened new ...
Shuangxiao Luo   +4 more
doaj   +1 more source

ICE SHEET ELEVATION MAPPING AND CHANGE DETECTION WITH THE ICE, CLOUD AND LAND ELEVATION SATELLITE-2 [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2019
On September 15, 2018, ICESat-2 (Ice, Cloud, and land Elevation satellite) was successfully launched to measure ice sheet and glacier elevation change, sea ice freeboard, and vegetation.
B. M. Csatho, A. F. Schenk, T. Neumann
doaj   +1 more source

Leaf area index retrieval with ICESat-2 photon counting LiDAR

open access: yesInternational Journal of Applied Earth Observations and Geoinformation, 2021
This is the first study to inverse leaf area index (LAI) with photon counting LiDAR (i.e., Ice, Cloud, and Land Elevation Satellite-2/Advanced Topographic Laser Altimeter System, ICESat-2/ATLAS). A new framework composed of three major steps was applied:
Jie Zhang   +8 more
doaj   +1 more source

Improving ICESat‐2‐based boreal forest height estimation by a multivariate sample quality control approach

open access: yesMethods in Ecology and Evolution, 2023
Boreal forest heights are associated with global carbon stocks and energy budgets. The launch of the Advanced Topographic Laser Altimeter System (ATLAS) onboard the NASA's Ice, Cloud and Land Elevation Satellite (ICESat‐2) enables canopy vertical ...
Tianqi Zhang, Desheng Liu
doaj   +1 more source

Aboveground biomass mapping by integrating ICESat-2, SENTINEL-1, SENTINEL-2, ALOS2/PALSAR2, and topographic information in Mediterranean forests

open access: yesGIScience & Remote Sensing, 2022
The Ice, Cloud, and Land Elevation Satellite-2 (ICESat-2) provides an extraordinary opportunity to support global large-scale forest carbon mapping, but further research is needed in order to obtain wall-to-wall forest aboveground biomass (AGB) maps with
Juan Guerra-Hernández   +8 more
doaj   +1 more source

Comparing elevation and backscatter retrievals from CryoSat-2 and ICESat-2 over Arctic summer sea ice [PDF]

open access: yesThe Cryosphere, 2023
The CryoSat-2 radar altimeter and ICESat-2 laser altimeter can provide complementary measurements of the freeboard and thickness of Arctic sea ice. However, both sensors face significant challenges for accurately measuring the ice freeboard when the sea ...
G. J. Dawson, J. C. Landy
doaj   +1 more source

Estimating Terrain Slope from ICESat-2 Data in Forest Environments

open access: yesRemote Sensing, 2020
The global digital elevation measurement (DEM) products such as SRTM DEM and GDEM have been widely used for terrain slope retrieval in forests. However, the slope estimation accuracy is generally limited due to the DEMs’ low vertical accuracy over ...
Xiaoxiao Zhu   +8 more
doaj   +1 more source

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