Share Email Print
cover

Proceedings Paper

Development of an automated classification scheme for detection of polar stratospheric clouds over Antarctica using AVHRR imagery
Author(s): Patricia S. Foschi; Kathy L. Pagan; Oswaldo Garcia; Deborah K. Smith; Steven E. Gaines; R. Stephen Hipskind
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

Although polar stratospheric clouds (PSCs) are a critical component in the ozone depletion process, their timing, duration, geographic extent, and annual variability are not well understood. The goal of this study is the development of an automated classification scheme for detecting PSCs using NOAA AVHRR data. Visual interpretation, density slicing, and standard multispectral classification detect most optically thick PSCs, but only some thin PSCs. Two types of automated techniques for detecting thin PSCs are being investigated: namely, multispectral classification methods, including the use of texture and other imagederived features, and back-propagation neural networks, including the use of hyperspatial and hypertemporal data. UARS CLAES temperature and aerosol extinction coefficient data are being used as a verification dataset. If successful, this classification scheme will be used to process the entire record of AVHRR data in order to assemble a long-term PSC climatology.

Paper Details

Date Published: 27 December 1995
PDF: 9 pages
Proc. SPIE 2578, Passive Infrared Remote Sensing of Clouds and the Atmosphere III, (27 December 1995); doi: 10.1117/12.228960
Show Author Affiliations
Patricia S. Foschi, San Francisco State Univ. (United States)
Kathy L. Pagan, San Francisco State Univ. (United States)
Oswaldo Garcia, San Francisco State Univ. (United States)
Deborah K. Smith, San Francisco State Univ. (United States)
Steven E. Gaines, Sterling Software (United States)
R. Stephen Hipskind, NASA Ames Research Ctr. (United States)


Published in SPIE Proceedings Vol. 2578:
Passive Infrared Remote Sensing of Clouds and the Atmosphere III
David K. Lynch; Eric P. Shettle, Editor(s)

© SPIE. Terms of Use
Back to Top