Global Elevation Inversion for Multiband Spaceborne Lidar: Predevelopment of Forest Canopy Height
Compared to single-band spaceborne lidars such as the global ecosystem dynamics investigation (GEDI) and Ice, Cloud and Land Elevation Satellite-2 (ICESat-2), multiband spaceborne lidars improve the detection of the canopy and ground. However, research on geographic elevation inversion with multi-ba...
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IEEE
2025-01-01
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| Series: | IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing |
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| Online Access: | https://ieeexplore.ieee.org/document/10815618/ |
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| author | Haowei Zhang Wei Gong Hu He Yue Ma Weibiao Chen Jiqiao Liu Ge Han Zhiyu Gao Wanqi Zhong Xin Ma |
| author_facet | Haowei Zhang Wei Gong Hu He Yue Ma Weibiao Chen Jiqiao Liu Ge Han Zhiyu Gao Wanqi Zhong Xin Ma |
| author_sort | Haowei Zhang |
| collection | DOAJ |
| description | Compared to single-band spaceborne lidars such as the global ecosystem dynamics investigation (GEDI) and Ice, Cloud and Land Elevation Satellite-2 (ICESat-2), multiband spaceborne lidars improve the detection of the canopy and ground. However, research on geographic elevation inversion with multi-band spaceborne lidars is limited, especially in developing algorithms that fully utilize multiple wavelengths for accurate measurements. A high-precision multiband fusion algorithm (MBFA) is proposed for global geographic elevation inversion for multiband spaceborne lidar of China's Daqi-1 satellite (DQ-1), enhancing the ranging capability of the 1572 nm channel by approximately 5 times. Compared with ICESat-2, GEDI and airborne scanning data in Finland, the geographic elevation results of MBFA showed average biases of –0.09, 0.1, and –0.95 m, with root mean square errors (RMSE) of 3.68, 4.51, and 7.70 m, respectively. Accurate forest canopy heights can be obtained using the decomposed signal approach in MBFA, which has been verified in Finland. The validation results (<italic>R</italic><sup>2</sup> = 0.72, RMSE = 1.38 m, BIAS = –0.75 m) demonstrate the DQ-1 satellite's effectiveness in measuring canopy height. The results indicate that the MBFA model has potential for global forest canopy height extraction and carbon sink research. The proposed MBFA can also provide guide for high-precision inversion of future multiband lidar satellites. |
| format | Article |
| id | doaj-art-b255822632ae4f1ca0f5f72a9455c9c1 |
| institution | Kabale University |
| issn | 1939-1404 2151-1535 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing |
| spelling | doaj-art-b255822632ae4f1ca0f5f72a9455c9c12025-01-21T00:00:38ZengIEEEIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing1939-14042151-15352025-01-01182928294110.1109/JSTARS.2024.352233010815618Global Elevation Inversion for Multiband Spaceborne Lidar: Predevelopment of Forest Canopy HeightHaowei Zhang0https://orcid.org/0000-0002-2660-6794Wei Gong1https://orcid.org/0000-0002-2276-8024Hu He2Yue Ma3https://orcid.org/0000-0003-1241-8650Weibiao Chen4https://orcid.org/0000-0001-7151-6926Jiqiao Liu5Ge Han6https://orcid.org/0000-0003-2561-3244Zhiyu Gao7Wanqi Zhong8https://orcid.org/0009-0005-9356-479XXin Ma9https://orcid.org/0000-0002-0969-2838School of Electronic Information, Wuhan University, Wuhan, ChinaSchool of Electronic Information, Wuhan University, Wuhan, ChinaChina Petroleum & Chemical Corporation Shengli Oilfield Branch Technical Inspection Center, Dongying, ChinaSchool of Electronic Information, Wuhan University, Wuhan, ChinaKey Laboratory of Space Laser Communication and Detection Technology, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai, ChinaKey Laboratory of Space Laser Communication and Detection Technology, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai, ChinaSchool of Remote Sensing and Information Engineering, Wuhan University, Wuhan, ChinaTianjin Institute of Marine Instrumentation, Tianjin, ChinaState Key Laboratory of Information Engineering in Surveying, Mapping, and Remote Sensing, Wuhan University, Wuhan, ChinaState Key Laboratory of Information Engineering in Surveying, Mapping, and Remote Sensing, Wuhan University, Wuhan, ChinaCompared to single-band spaceborne lidars such as the global ecosystem dynamics investigation (GEDI) and Ice, Cloud and Land Elevation Satellite-2 (ICESat-2), multiband spaceborne lidars improve the detection of the canopy and ground. However, research on geographic elevation inversion with multi-band spaceborne lidars is limited, especially in developing algorithms that fully utilize multiple wavelengths for accurate measurements. A high-precision multiband fusion algorithm (MBFA) is proposed for global geographic elevation inversion for multiband spaceborne lidar of China's Daqi-1 satellite (DQ-1), enhancing the ranging capability of the 1572 nm channel by approximately 5 times. Compared with ICESat-2, GEDI and airborne scanning data in Finland, the geographic elevation results of MBFA showed average biases of –0.09, 0.1, and –0.95 m, with root mean square errors (RMSE) of 3.68, 4.51, and 7.70 m, respectively. Accurate forest canopy heights can be obtained using the decomposed signal approach in MBFA, which has been verified in Finland. The validation results (<italic>R</italic><sup>2</sup> = 0.72, RMSE = 1.38 m, BIAS = –0.75 m) demonstrate the DQ-1 satellite's effectiveness in measuring canopy height. The results indicate that the MBFA model has potential for global forest canopy height extraction and carbon sink research. The proposed MBFA can also provide guide for high-precision inversion of future multiband lidar satellites.https://ieeexplore.ieee.org/document/10815618/Aerosol and carbon dioxide detection lidar (ACDL)active monitoringmultiband lidar |
| spellingShingle | Haowei Zhang Wei Gong Hu He Yue Ma Weibiao Chen Jiqiao Liu Ge Han Zhiyu Gao Wanqi Zhong Xin Ma Global Elevation Inversion for Multiband Spaceborne Lidar: Predevelopment of Forest Canopy Height IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing Aerosol and carbon dioxide detection lidar (ACDL) active monitoring multiband lidar |
| title | Global Elevation Inversion for Multiband Spaceborne Lidar: Predevelopment of Forest Canopy Height |
| title_full | Global Elevation Inversion for Multiband Spaceborne Lidar: Predevelopment of Forest Canopy Height |
| title_fullStr | Global Elevation Inversion for Multiband Spaceborne Lidar: Predevelopment of Forest Canopy Height |
| title_full_unstemmed | Global Elevation Inversion for Multiband Spaceborne Lidar: Predevelopment of Forest Canopy Height |
| title_short | Global Elevation Inversion for Multiband Spaceborne Lidar: Predevelopment of Forest Canopy Height |
| title_sort | global elevation inversion for multiband spaceborne lidar predevelopment of forest canopy height |
| topic | Aerosol and carbon dioxide detection lidar (ACDL) active monitoring multiband lidar |
| url | https://ieeexplore.ieee.org/document/10815618/ |
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