Calibration monitoring of the visible and near-infrared channels of the Along-Track Scanning Radiometer-2 by use of stable terrestrial sites

被引：55

作者：

Smith, DL ^{[1
]}

Mutlow, CT

Rao, CRN

机构：

[1] Rutherford Appleton Lab, Council Cent Lab Res Councils, Didcot OX11 0QX, Oxon, England

[2] NOAA, Natl Environm Satellite Data & Informat Serv, Off Res & Applicat, Washington, DC 20233 USA

来源：

APPLIED OPTICS | 2002年 / 41卷 / 03期

关键词：

D O I：

10.1364/AO.41.000515

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The Along-Track Scanning Radiometer-2 (ATSR-2) is equipped with visible and near-infrared channels at 1.6, 0.87, 0.66, and 0.56 mum. An in-flight visible calibration (VISCAL) system used to convert the raw signal to top-of-the-atmosphere reflectances is described. To monitor the long-term stability of the VISCAL, a number of large-area stable terrestrial sites have been employed. We describe the methods used to determine the long-term drifts in the ATSR-2 onboard calibration device and evaluate the suitability of the sites for calibration monitoring. (C) 2002 Optical Society of America.

引用

页码：515 / 523

页数：9

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