Results 21 to 30 of about 165,753 (253)

Assimilating spaceborne lidar dust extinction can improve dust forecasts [PDF]

open access: yesAtmospheric Chemistry and Physics, 2022
Atmospheric mineral dust has a rich tri-dimensional spatial and temporal structure that is poorly constrained in forecasts and analyses when only column-integrated aerosol optical depth (AOD) is assimilated.
J. Escribano   +19 more
doaj   +2 more sources

Chlorophyll and POC in polar regions derived from spaceborne lidar

open access: yesFrontiers in Marine Science, 2023
Polar regions have the most productive ecosystems in the global ocean but are vulnerable to global climate changes. Traditionally, the long-term changes occurred in an ecosystem are studied by using satellite-derived estimates of passive ocean color ...
Zhenhua Zhang   +9 more
doaj   +2 more sources

The Nonlinear Effective Attenuation Coefficient of Spaceborne Oceanic Lidar Signal [PDF]

open access: yesEPJ Web of Conferences, 2020
Multiple scattering is an inevitable effect in spaceborne oceanic lidar because of the large footprint size and the high optical density of seawater. The effective attenuation coefficient klidar in oceanic lidar equation, which indicates the influence of
Liu Qun   +7 more
doaj   +1 more source

A Semianalytic Monte Carlo Simulator for Spaceborne Oceanic Lidar: Framework and Preliminary Results

open access: yesRemote Sensing, 2020
Spaceborne lidar (light detection and ranging) is a very promising tool for the optical properties of global atmosphere and ocean detection. Although some studies have shown spaceborne lidar’s potential in ocean application, there is no spaceborne lidar ...
Qun Liu   +7 more
doaj   +1 more source

Simulation and Error Analysis of Methane Detection Globally Using Spaceborne IPDA Lidar

open access: yesRemote Sensing, 2023
Methane (CH4) is recognized as the second most important greenhouse gas. An accurate and precise monitoring of methane gas globally has a vital role in studying the carbon cycle and global warming.
Xuanye Zhang   +4 more
doaj   +1 more source

Analysis and Correction of Water Forward-Scattering-Induced Bathymetric Bias for Spaceborne Photon-Counting Lidar

open access: yesRemote Sensing, 2023
The new spaceborne photon-counting lidar, i.e., ICESat-2, has shown great advantages in obtaining nearshore bathymetry at a global scale. The forward-scattering effect in the water column is one of the main error sources in airborne lidar bathymetry (ALB)
Jian Yang   +5 more
doaj   +1 more source

Spatially Continuous Mapping of Forest Canopy Height in Canada by Combining GEDI and ICESat-2 with PALSAR and Sentinel

open access: yesRemote Sensing, 2022
Continuous large-scale mapping of forest canopy height is crucial for estimating and reporting forest carbon content, analyzing forest degradation and restoration, or to model ecosystem variables such as aboveground biomass.
Camile Sothe   +4 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

Pointing Verification Method for Spaceborne Lidars [PDF]

open access: yesRemote Sensing, 2017
High precision acquisition of atmospheric parameters from the air or space by means of lidar requires accurate knowledge of laser pointing. Discrepancies between the assumed and actual pointing can introduce large errors due to the Doppler effect or a wrongly assumed air pressure at ground level.
Axel Amediek, Martin Wirth
openaire   +3 more sources

Spaceborne LiDAR reveals the effectiveness of European Protected Areas in conserving forest height and vertical structure

open access: yesCommunications Earth & Environment, 2023
The effectiveness of Protected Areas in conserving forest ecosystems has been examined at the continental scale using area-based habitat parameters, but knowledge of the three-dimensional structure of forest habitats is still lacking. Here, we assess the
G. Ceccherini   +9 more
semanticscholar   +1 more source

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