Infrared and Laser Engineering, Volume. 49, Issue 11, 20200233(2020)
Discussion on the development of laser altimetry satellite for tri-polar regions observation
Figures & Tables(5)
Fig. 2. Elevation profile data of the first track obtained by the GF-7 in the polar region(captured time：21st Nov, 2019)
Fig. 3. Changes in the freeboard height of the Arctic Ocean sea ice from October 2018 to March 2019 obtained using ICESat-2 laser altimetry data[10]
Fig. 4. ICESat-2 trajectory in the Tibet Plateau lake (red line) and the obtained water level information of Qinghai Lake [13]
Table 1.
Main technical indicators and uses of major laser height measurement loads at home and abroad
国内外主要激光测高载荷主要技术指标与用途
View tableView in ArticleTable 1.
Main technical indicators and uses of major laser height measurement loads at home and abroad
国内外主要激光测高载荷主要技术指标与用途
Satellite name Launch time Collecting method Beam number Footprint diameter/m Footprint spacing/m Polar observation capability Main applications ICESat-1 2003 Full wave-form 1 70 170 Within 86° Polar change monitoring, terrain and forest height measurement, etc ICESat-2 2018 Single photon 6 10 0.7 Within 88° Polar change monitoring, terrain and forest height measurement, etc GEDI 2018 Full wave-form 4 25 60 Within 51.6° Forest biomass estimation LIST 2025 Single photon 1 000 5 0.7 / High precision measurement of surface elevation ZY3-02 2016 Full wave-form 1 75 3 600 Within 83° Laser altimetry experimental load GF-7 2019 Full wave-form 2 < 30 2 400 Within 83° Elevation control point acquisition Landcarbon monitor 2021 Full wave-form 5 25-30 200 / Forest carbon storage monitoring, elevation control point acquisition
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Xiaoming Gao, Guoyuan Li, Jinquan Guo, Sida Ouyang, Wenfeng Fan. Discussion on the development of laser altimetry satellite for tri-polar regions observation[J]. Infrared and Laser Engineering, 2020, 49(11): 20200233
Paper Information
Category: Issue-Space-borne laser altimetry technology
Received: Jun. 12, 2020
Accepted: --
Published Online: Jan. 4, 2021
The Author Email: Li Guoyuan (ligy_lasac@foxmail.com)
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