Estimations of inherent optical properties of the St. Lawrence estuary using airborne hyperspectral data
- 页数：129 p. :
- 第一责任说明：Ana Silio Calzada.
- 分类号：a225 ; a625
- ISBN：0612829553(ebk.) :
MARC全文
62h0020803 20140522144631.0 cr un||||||||| 101019s2003 xx ||||f|||d||||||||eng | 0612829553(ebk.) : CNY371.35 (UnM)AAIMQ82955 UnM UnM NGL a225 ; a625 Silio Calzada, Ana. Estimations of inherent optical properties of the St. Lawrence estuary using airborne hyperspectral data [electronic resource] / Ana Silio Calzada. 129 p. : digital, PDF file. Adviser: John R. Miller. ; Source: Masters Abstracts International, Volume: 42-02, page: 0560. Thesis (M.Sc.) -- York University (Canada), 2003. For this study, the CAM5S atmospheric correction procedure was applied to low altitude (600 m.) water scenes to retrieve above water reflectance. This remote sensing reflectance (Rrs) was then interpreted in terms of its components: the sky and the sun glint component and the subsurface water volume reflectance Rrs w. Using stations with coincident hyperspectral airborne sensor (CASI) and ship data the algorithms for separating, R rsw from the surface components are evaluated. The next step was to estimate bulk water optical properties and compare these to in-situ measurements. The backscatter to absorption ratio (b b/a) was estimated from calculated subsurface volume reflectances via the model of Jerome et al (1995). Validation comparisons are made with values derived from in-water data.;These estimates of intrinsic (bulk) optical parameters are then used to establish a water type classification, differentiating Case 1 from Case 2 waters, as well as those transitional ones. A three-wavelength (437, 565, 671 nm) relationship is set up between the bb/ a ratios that allow the determination of the principal water component present in the medium, and consequently, the water type characteristic of each of the stations under study, plus variations along transect lines. (Abstract shortened by UMI.). Estuaries ; Remote sensing. Saint Lawrence River. Saint Lawrence River Estuary (Québec) aMiller, John R. aCN bNGL http://pqdt.bjzhongke.com.cn/Detail.aspx?pid=yXXvGHCwv8E%3d NGL Bs664 rCNY371.35 ; h1 xhbs1003