Results 21 to 30 of about 17,653,975 (206)

NASA ICESat-2: Space-Borne LiDAR for Geological Education and Field Mapping of Aeolian Sand Dune Environments

open access: yesRemote Sensing, 2023
Satellites are launched frequently to monitor the Earth’s dynamic surface processes. For example, the Landsat legacy has thrived for the past 50 years, spanning almost the entire application spectrum of Earth Sciences. On the other hand, fewer satellites
Khushbakht Rehman   +2 more
doaj   +1 more source

REVIEW OF NOISE FILTERING ALGORITHM FOR PHOTON DATA [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2020
As a continuation of Ice, Cloud, and Land Elevation Satellite-1 (ICESat-1)/Geoscience Laser Altimeter System (GLAS), the Ice, Cloud, and Land Elevation Satellite-2 (ICESat-2) , which is equipped with the Advanced Topographic Laser Altimeter (ATLAS ...
J. P. Huang, Y. Q. Xing, L. Qin
doaj   +1 more source

Radiometric Assessment of ICESat-2 over Vegetated Surfaces [PDF]

open access: yesRemote Sensing, 2022
The ice, cloud, and land elevation satellite-2 (ICESat-2) is providing global elevation measurements to the science community. ICESat-2 measures the height of the Earth’s surface using a photon counting laser altimeter, ATLAS (advanced topographic laser altimetry system).
Amy Neuenschwander   +4 more
openaire   +3 more sources

Effect of leaf-on and leaf-off canopy conditions on forest height retrieval and modelling with ICESat-2 data

open access: yesInternational Journal of Digital Earth, 2023
Ice, Cloud, and land Elevation Satellite-2 (ICESat-2) provides effective photon-counting light detection and ranging (LiDAR) data for estimating forest height across extensive geographical areas.
Jialu Zhou   +6 more
doaj   +1 more source

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 ALTIMETRY AS GEODETIC CONTROL [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2020
Abstract. Digital elevation models (DEMs) are of fundamental importance for a large variety of scientific and commercial applications. Many geoscience studies require the most precise and current information about the Earth’s topography. Independent quality assessments of these DEMs are crucial to their appropriate use in land process studies, as ...
Carabajal, C., Boy, Jean-Paul
openaire   +3 more sources

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

ICESat-2 ????????? ????????? ????????? ????????? ?????? ????????? ?????? [PDF]

open access: yes, 2021
As the Arctic melt ponds play an important role in determining the interannual variation of the sea ice extent and changes in the Arctic environment, it is crucial to monitor the Arctic melt ponds with high accuracy.
Kim, Young Jun   +7 more
core   +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

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