Measuring Ganymede’s Librations with Laser Altimetry [PDF]
Geosciences, 2019 Jupiter’s moon Ganymede might be in possession of a subsurface ocean located between two ice layers. However, from Galileo data it is not possible to unambiguously infer the thickness and densities of the individual layers.
Gregor Steinbrügge +4 more
doaj +8 more sources
Satellite Laser Altimetry Data-Supported High-Accuracy Mapping of GF-7 Stereo Images
Remote Sensing, 2022 GaoFen 7 (GF-7) is China’s first submeter high-resolution stereo mapping satellite with dual-linear-array cameras and a laser altimeter system onboard for high-precision mapping.
Changru Liu +7 more
doaj +3 more sources
Remote Sensing, 2021 To ensure the accuracy of large-scale optical stereo image bundle block adjustment, it is necessary to provide well-distributed ground control points (GCPs) with high accuracy. However, it is difficult to acquire control points through field measurements
Guo Zhang +4 more
doaj +3 more sources
Remote SensingFor small-satellite imagery, traditional image points derived from the direct back-projection of laser altimetry points onto the imagery often exhibit deviations of tens of pixels or more, owing to the relatively limited attitude and orbit determination ...
Wenping Song +8 more
doaj +2 more sources
Global marine gravity field models at 1-arcminute resolution derived from optimized fusion of ICESat-2 along-track and cross-track measurements [PDF]
Scientific DataSatellite altimetry is a primary source for deriving the global marine gravity field. Leveraging Ice, Cloud and Land Elevation Satellite-2 (ICESat-2) multi-beam laser altimetry, this study constructs global 1-arcminute gridded models of marine deflection
Xin Liu +4 more
doaj +2 more sources
Signal Photon Extraction Method for ICESat-2 Data Using Slope and Elevation Information Provided by Stereo Images [PDF]
Sensors, 2023 Laser altimetry data from the Ice, Cloud, and land Elevation Satellite-2 (ICESat-2) contain a lot of noise, which necessitates the requirement for a signal photon extraction method.
Linyu Gu +5 more
doaj +2 more sources
Laser altimetry reveals complex pattern of Greenland Ice Sheet dynamics [PDF]
Proceedings of the National Academy of Sciences of the United States of America, 2014 Kyle Duncan +2 more
exaly +2 more sources
OVERVIEW OF THE TERRESTRIAL ECOSYSTEM CARBON MONITORING SATELLITE LASER ALTIMETER [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2022 The Terrestrial Ecosystem Carbon Monitoring satellite will be the first satellite of China with multi-beams laser altimeter and repetition frequency equal to GLAS on the world first laser altimetry satellite ICESat, but smaller diameter than GLAS.
G. Li +8 more
doaj +1 more source
ICESAT-2 LASER ALTIMETRY DATA-GUIDED HIGH-ACCURACY POSITIONING OF SATELLITE STEREO IMAGES [PDF]
ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2022 Positioning accuracy is a key indicator that restricts the accuracy of satellite image mapping. Laser altimetry acquires surface height in decimeters or higher accuracy, providing high-accuracy topographic information for satellite photogrammetry.
S. Zou +5 more
doaj +1 more source
Cloud Detection and Centroid Extraction of Laser Footprint Image of GF-7 Satellite Laser Altimetry [PDF]
Journal of Geodesy and Geoinformation Science, 2021 The laser altimeter loaded on the GaoFen-7(GF-7) satellite is designed to record the full waveform data and footprint image, which can obtain high-precision elevation control points for stereo image.
Jiaqi YAO,Guoyuan LI,Jiyi CHEN,Genghua HUANG,Xiongdan YANG,Shuaitai ZHANG
doaj +1 more source