Results 41 to 50 of about 765 (166)

Multicriteria Selection of Elevation Control and Image Tie Points for Block Adjustment of ZY-3 Images and ICESat Data in Antarctica

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Integrating optical satellite images and laser altimetry data is essential to achieve high-accuracy mapping, especially in areas without ground control points.
Shijie Liu, Zhida Bai, Xiaofeng Gao, Huan Xie, Yanmin Jin, Hao Wu, Xiaohua Tong   +6 more
doaj   +1 more source

Lake gravity anomalies from ICESat-2 laser altimetry and geodetic radar altimetry

Advances in Space Research
In the current most accepted global geopotential model, EGM2008, there are often data gaps in the source data used to compute the model over inland water. As a result, EGM2008 may be less reliable over lakes. Satellite altimetry has the  potential to estimate gravity anomalies and update EGM2008 over lakes.
Franze, Sarah E., Andersen, Ole B., Nilsson, Bjarke, Nielsen, Karina   +3 more
openaire   +2 more sources

Laser altimetry surveying

, 2006
Sistem za snimanje iz vazduha poznat kao LiDAR sistem (Light Detection and Ranging), predstavalja relativno nov način za prikupljanje podataka koji obezbeđuje veliki broj informacija o objektima na površini zemlje kao i o zemljišnim oblicima sa velikom gustinom trodimenzionalnih koordinata tačaka, omogućavajući visoki kvalitet predstavljanja snimljene ...
Nestorov, Ivan, Beljin, Jugoslav, Martinović, Nebojša   +2 more
openaire   +1 more source

Surface elevation changes on Lachman Crags ice caps (north-eastern Antarctic Peninsula) since 1979 indicated by DEMs and ICESat data

Journal of Glaciology, 2019
The long-term warming on the Antarctic Peninsula in the second half of the 20th century prompted rapid retreat of glaciers on the peninsula and surrounding islands.
ZBYNĚK ENGEL, JAN KROPÁČEK, JANA SMOLÍKOVÁ   +2 more
doaj   +1 more source

Overview of the GF‐7 Laser Altimeter System Mission

Earth and Space Science, 2020
The Gao Fen 7 (GF‐7) satellite is China's first submeter, high‐resolution Earth observation and remote sensing satellite for natural resource monitoring, land surveying, and other industrial applications in China.
Xinming Tang, Junfeng Xie, Ren Liu, Genghua Huang, Chenguang Zhao, Ying Zhen, Hongzhao Tang, Xianhui Dou   +7 more
doaj   +1 more source

A Survey of ICESat Coastal Altimetry Applications: Continental Coast, Open Ocean Island, and Inland River

Terrestrial, Atmospheric and Oceanic Sciences, 2008
ICESat satellite laser altimetry provides an unprecedented set of global elevation measurements of the Earth, yielding great detail over ice, land and ocean surfaces.
Timothy J. Urban, Bob E. Schutz, Amy L. Neuenschwander   +2 more
doaj   +1 more source

GERAÇÃO DE MODELO DIGITAL DE TERRENO POR MEIO DA FILTRAGEM DE DADOS OBTIDOS POR VARREDURA A LASER UTILIZANDO UM MÉTODO BASEADO NO PRINCÍPIO DA DECLIVIDADE

Colloquium Exactarum, 2014
Due the advances in the technology of laser scanning systems, research in several countries have been initiated with the aim of exploring the recently technological resources developed.
Wallace Felipe Francisco Cardoso, Francisco Assis da Silva, Mário Augusto Pazoti   +2 more
doaj   +1 more source

On-Orbit Performance of the GF-7 Satellite Laser Altimetry System from 2020 to 2024 [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
The Gaofen-7 (GF-7) satellite represents China's first civil satellite equipped with a full waveform laser altimeter. This study aims to evaluate its on-orbit performance by analyzing the transmitting and receiving systems through the examination of ...
J. Peng, G. Li, G. Li, J. Chen, A. Guo
doaj   +1 more source

Assessment of Relative Accuracy of AHN-2 Laser Scanning Data Using Planar Features

Sensors, 2010
AHN-2 is the second part of the Actueel Hoogtebestand Nederland project, which concerns the acquisition of high-resolution altimetry data over the entire Netherlands using airborne laser scanning.
Kourosh Khoshelham, Sylvie Soudarissanane, Corné van der Sande   +2 more
doaj   +1 more source

Quantifying Surface-Height Change Over a Periglacial Environment With ICESat-2 Laser Altimetry. [PDF]

Earth Space Sci, 2021
Michaelides RJ, Bryant MB, Siegfried MR, Borsa AA.   +3 more
europepmc   +1 more source