NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Polarization Ray Trace Model of the MODIS InstrumentSunlight reflected from the earth is, to a certain extent, polarized. Radiometers, such as the MODIS instrument on board the TERRA and AQUA spacecraft, are to a certain extent polarizers. Accurate radiometric measurements must take into account both the polarization state of the scene and the polarization sensitivity of the measuring instrument. The measured polarization characteristics of the MODIS instruments are contained in various radiometric models. Continued use of these radiometric math models, over a number of years, have shown where these models can be improved. Currently a MODIS polarization ray trace model has been created which models the thin film structure on the optical elements. This approach is described and modeled and measured instrument polarization sensitivity results presented.
Document ID
20040171530
Acquisition Source
Goddard Space Flight Center
Document Type
Conference Paper
Authors
Waluschka, Eugene
Xiong, Jack
Esaias, Wayne E.
Voss, Kenneth
Souaidia, Nordine
Pellicori, Samuel
Moyer, David
Guenther, Bruce
Barnes, William
Date Acquired
August 22, 2013
Publication Date
January 1, 2004
Subject Category
Earth Resources And Remote Sensing
Meeting Information
Meeting: 2004 Conference on Characterization and Radiometry Calibration for Remote Sensing
Location: UT
Country: United States
Start Date: August 1, 2004
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

Available Downloads

There are no available downloads for this record.
No Preview Available