Four-years of on-orbit spectral characterization results for Aqua MODIS reflective solar bands

X. Xiong; N. Che; Y. Xie; D. Moyer; W. Barnes; B. Guenther; V. Salomonson

doi:10.1117/12.687163

3 October 2006 Four-years of on-orbit spectral characterization results for Aqua MODIS reflective solar bands

X. Xiong, N. Che, Y. Xie, D. Moyer, W. Barnes, B. Guenther, V. Salomonson

Proceedings Volume 6361, Sensors, Systems, and Next-Generation Satellites X; 63610S (2006) https://doi.org/10.1117/12.687163
Event: SPIE Remote Sensing, 2006, Stockholm, Sweden

Abstract

The Moderate Resolution Imaging Spectroradiometer (MODIS) flight model 1 (FM-1) was launched on-board NASA's EOS Aqua spacecraft on May 04, 2002. MODIS has 20 reflective solar bands (RSB) with wavelengths from 0.41 to 2.2μm and 16 thermal emissive bands (TEB) with wavelengths from 3.7 to 14.4μm. Typical sensor spectral characterization includes measurements of in-band (IB) and out-of-band (OOB) relative spectral responses (RSR) or spectral response functions (SRF), center wavelengths (CW) and bandwidths (BW). During MODIS instrument pre-launch calibration and characterization, these parameters were measured using a spectral measurement assembly (SpMA) by the instrument vendor. In addition to its on-orbit radiometric calibration capability, MODIS has a unique on-board calibrator, spectro-radiometric calibration assembly (SRCA) that can be used to monitor RSB on-orbit spectral performance. This paper presents an overview of MODIS spectral characterization methodologies, from pre-launch to on-orbit. It describes Aqua MODIS SRCA operational activities in spectral mode, summarizes the results from its four-years of on-orbit spectral measurements, and discusses lessons learned for future sensor design and development. The results show that on-orbit changes of Aqua MODIS RSB center wavelengths and bandwidths have been very small, typically less than 0.5nm for the CW and less than 1nm for the BW.

Citation Download Citation

X. Xiong, N. Che, Y. Xie, D. Moyer, W. Barnes, B. Guenther, and V. Salomonson "Four-years of on-orbit spectral characterization results for Aqua MODIS reflective solar bands", Proc. SPIE 6361, Sensors, Systems, and Next-Generation Satellites X, 63610S (3 October 2006); https://doi.org/10.1117/12.687163

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available