吸收系数和衰减系数是水体的固有光学量，也是水色遥感的基本参数，对于水色遥感建模和反演具有重要的作用.高光谱水体吸收衰减测量仪则是目前国际上原位测量水体吸收和衰减系数的主要仪器.本文详细阐述了该仪器数据处理的原理、方法及步骤，并且将之应用于2009年冬季东海航次的测量数据，获得了原位的东海冬季水体吸收和衰减系数分布特征.本文方法可以较好地剔除异常数据，获得高精度的水体吸收和衰减系数数据，可为水色遥感模型开发与验证提供可靠的现场测量数据.

The absorption and attenuation coefficients are the inherent optical properties (IOPs) of water,and also the fundamental parameters for the ocean color remote sensing,which play an important role in ocean color remote sensing algorithm development and information retrieval.The hyperspectral water absorption and attenuation meter (AC-S) is the primary instrument which could in-suit measure the attenuation and absorption coefficients of water,in the world.In this paper,the principle,method and steps of the data processing for the AC-S are described in detail.Using the developed method,the in-situ AC-S dataset of the winter cruise of 2009 in the East China Sea are processed,and the in-situ distributions of the water absorption and attenuation coefficients in the East China Sea are derived.The method developed in this paper,could detect and remove the abnormal data efficiently,and obtain accuracy data of the water absorption and attenuation coefficients,which could provide the high quality data for the algorithm development and validation of the ocean color remote sensing.