文章基本信息

标题：Use of MODIS imagery for the optical characterization of Western Mediterranean waters
本地全文：下载
作者：Luca Massi ; Carolina Santini ; Maurizio Pieri 等
期刊名称：Italian Journal of Remote Sensing
印刷版ISSN：1129-8596
电子版ISSN：2039-7879
出版年度：2011
卷号：43
页码：19-37
DOI：10.5721/ItJRS20114332
出版社：Associazione Italiana di Telerilevamento (AIT)
摘要：MODIS data have been widely used for the study of marine waters and particularly for the estimation of chlorophyll concentration [CHL]. The [CHL] retrieval algorithms which are applied to MODIS imagery show various degrees of accuracy depending on the presence of Case 1 and Case 2 waters (C1W and C2W). The current paper presents the adaptation of a recently proposed algorithm based on Spectral Angle Mapping (SAM) to characterize water types using MODIS data. The algorithm is applied to 26 MODIS images taken over the Western Mediterranean basin from 2003 to 2009. The value of a SAM indicator of proximity to Case 1 waters is first assessed towards in situ measurements collected during the same period. The results confirm that the fuzzy categorization into C1-C2W can be used to guide the application of different algorithms. In this way, the accuracy of [CHL] estimation is decidedly enhanced both in oceanic and coastal areas.
关键词：Sea colour; Optical constituents; MODIS-Aqua; Mediterranean Sea.