Abstract：Compared with traditional ocean acoustic detection system, airborne LiDAR sounding system has the advantages of high speed, high coverage and strong flexibility. The inversion analysis of the depth measurement performance of the current international airborne LiDAR sounding system ( CZMIL) , which also combined MODIS product data, was aimed to provide reference for the use of the equipment in similar areas. According to the Water Optics data measured in the Yellow, East China coastal area, the empirical relationship model between the 490 nm diffuse attenuation coefficient and the 532 nm diffuse attenuation coefficient was built in the corresponding sea area. The measuring ability of the advanced airborne hydrographic LiDAR system was analyzed in the Yellow, East China coastal area based on the quarterly average data of the MODIS 490 nm diffuse attenuation coefficient in 2003. The results showed that: ( 1) the sounding ability of CZMIL was influenced by meteorological conditions, and the main reason was that the optical characteristics of the water body presented different characteristics in different seasons; ( 2) the summer was the best season for the depth measuring of the airborne hydrographic LiDAR system in the Yellow, East China coastal area, and the range of the depth measuring was within 75 meters.

Keyword：diffuse attenuation coefficient;airborne hydrographic LiDAR;CZMIL;MODIS;