Acta Geodaetica et Cartographica Sinica ›› 2018, Vol. 47 ›› Issue (2): 180-187.doi: 10.11947/j.AGCS.2018.20170536

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Evaluation of Airborne LiDAR Bathymetric Parameters on the Northern South China Sea Based on MODIS Data

DING Kai1,2, LI Qingquan1,2, ZHU Jiasong1,2, WANG Chisheng1,2, GUAN Minglei1,2, CUI Yang1,2, YANG Chao1,2, XU Tian3   

  1. 1. Key Laboratory for Geo-Environment Monitoring of Coastal Zone of the National Administration of Surveying, Mapping and Geoinformation, Shenzhen University, Shenzhen 518060, China;
    2. Shenzhen Key Laboratory of Spatial Smart Sensing and Services, Shenzhen University, Shenzhen 518060, China;
    3. Surveying and Mapping Institute Lands and Resource Department of Guangdong Province, Guangzhou 510500, China
  • Received:2017-09-19 Revised:2017-12-13 Online:2018-02-20 Published:2018-03-02
  • Supported by:
    The National Natural Science Foundation of China (Nos. 41504004;91546106);The State Key Laboratory of Earthquake Dynamics Research Program (No. LED2016B03);The Shenzhen Future Industry Development Funding Program (No. 201507211219247860);The Special Program of Department of Land and Resources of Guangdong Province(No. GDGTKJ2016001);The Shenzhen Scientific Research and Development Funding Program(No. JCYJ20170302144002028);The Graduate Innovation and Development Funding Program of Shenzhen University (No. 00003327)

Abstract: In order to study the spatial distribution of maximum coastal zone mapping and imaging LiDAR(CZMIL)detectable depth in the northern South China Sea,we firstly research the existing Kd(490) inversion algorithm in the northern South China Sea.The relationship between the diffuse attenuation coefficient Kd(490) and Kd(532) is established based on the optical profile data measured,and the relationship between the diffuse attenuation coefficient Kd(532) and the maximum CZMIL detectable depth is summarized.Then,using the remote measurement data of the Aqua-MODIS,we obtain the spatial distribution of diffuse attenuation coefficient at 532 nm in the northern South China Sea in January,June and October,2014.It shows that June is more suitable for bathymetry operation than in October and January.Finally,we obtain the spatial distribution of maximum CZMIL detectable depth in June in the northern South China Sea.The results show that the CZMIL detectable water depths in the northern South China Sea are about 0~71.18 m.The study provides a reference for the time selection and flight scheme of LiDAR bathymetry operation in the northern South China Sea.

Key words: airborne LiDAR bathymetry, diffuse attenuation coefficient, South China Sea, coastal zone mapping and imaging LiDAR

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