Derivation of the MODIS Aqua Point-Spread Function for Ocean Color Bands

被引：4

作者：

Meister, Gerhard ^{[1
]}

Zong, Yuqin ^{[2
]}

McClain, Charles R. ^{[3
]}

机构：

[1] NASA, Goddard Space Flight Ctr, Ocean Biol Proc Grp, Futuretech Corp, Code 614-2, Greenbelt, MD 20771 USA

[2] NIST, Gaithersburg, MD 20899 USA

[3] NASA, Ocean Biol Proc Grp, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA

来源：

EARTH OBSERVING SYSTEMS XIII | 2008年 / 7081卷

关键词：

MODIS; point-spread function; scanner; characterization;

D O I：

10.1117/12.796980

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

The Moderate Resolution Imaging Spectroradiometer (MODIS) oil the Earth Observing System (EOS) Aqua platform has 9 spectral bands with center wavelengths from 412nm to 870nm that are used to produce the standard ocean color data products. Ocean scenes usually contain high contrast due to the presence of bright clouds over dark water. The MODIS has been characterized for straylight effects prelaunch. In this paper, we derive Point-Spread Functions for the MODIS Aqua ocean bands based on the prelaunch Near-Field Response measurements. We use Harvey-Shack coefficients derived by the system vendor Santa Barbara Remote Sensing. The crucial step in the derivation of the Point-Spread Function is the normalization of the Harvey-Shack coefficients relative to the center pixel. The straylight contamination of ocean scenes is evaluated based on artificial test scenes. Furthermore, the dependence of top-of-atmosphere radiances and ocean color products oil proximity to a cloud is analyzed, and a straylight correction algorithm is proposed.

引用

页数：12

共 16 条

[1] Prelaunch characteristics of the Moderate Resolution Imaging Spectroradiometer (MODIS) on EOS-AM1 [J].

Barnes, WL ;

Pagano, TS ;

Salomonson, VV .

IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING, 1998, 36 (04) :1088-1100

[2]

DERRICK P, 2002, PL3095N07881 RAYTH I

[3]

FRANZ BA, 2005, SPIE, V5882

[4] RETRIEVAL OF WATER-LEAVING RADIANCE AND AEROSOL OPTICAL-THICKNESS OVER THE OCEANS WITH SEAWIFS - A PRELIMINARY ALGORITHM [J].

GORDON, HR ;

WANG, MH .

APPLIED OPTICS, 1994, 33 (03) :443-452

[5]

HURT T, 2000, PL3095N07729 RAYTH I

[6] RESTORATION OF ASTRONOMICAL IMAGES BY ITERATIVE BLIND DECONVOLUTION [J].

JEFFERIES, SM ;

CHRISTOU, JC .

ASTROPHYSICAL JOURNAL, 1993, 415 (02) :862-874

[7] A SIMPLE, PHOTOMETRICALLY ACCURATE ALGORITHM FOR DECONVOLUTION OF OPTICAL-IMAGES [J].

KEEL, WC .

PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC, 1991, 103 (665) :723-729

[8] On the twilight zone between clouds and aerosols [J].

Koren, Ilan ;

Remer, Lorraine A. ;

Kaufman, Yoram J. ;

Rudich, Yinon ;

Martins, J. Vanderlei .

GEOPHYSICAL RESEARCH LETTERS, 2007, 34 (08)

[9] Preliminary remediation of scattered light in NEAR MSI images [J].

Li, H ;

Robinson, MS ;

Murchie, S .

ICARUS, 2002, 155 (01) :244-252

[10]

Nishihama M., 1997, MODIS LEVEL 1A EARTH

← 1 2 →