SVS Archived Story: /svs/db/stories/Landsat/mt st helens.html

Mt. St. Helens


Mt. St. Helens Crater (TM 321)	Mt. St. Helens Crater (TM 542)

Mt. St. Helens, Toutle River (TM 321)	Mt. St. Helens, Toutle River (TM 542)

These scenes from Mt. St. Helens show the mountain in May of 1992 as seen by the Landsat 5 satellite's Thematic Mapper instrument. Two different colour combinations have been used to create these images. The "Natural Colour" images use the red, green, and blue channels (TM bands 3, 2, and 1 respectively), the other set uses a combination that spans the widest range of spectral data, with shortwave infrared (TM band 5), infrared (TM band 4), and visible green (TM band 2) channels mapped to red, green, and blue respectively. All images are draped over digital elevation model (DEM) data with a x 2 vertical exaggeration.

Images:

Mt. St. Helens Crater (TM 321)
	JPG (18.5 kB) GIF (56 kB) High resolution TIFF [2560 x 1920] (10.2 MB)
Mt. St. Helens Crater (TM 542)
	JPEG (235 kB) Medium resolution TIFF [1280 x 960] (3.3 MB) High resolution TIFF [2560 x 1920] (12.7 MB)
Toutle River (TM 321)
	JPEG (17.6 kB) GIF (56 kB) High resolution TIFF [2560 x 1920] (9.2 MB)
Toutle River (TM 542)
	JPEG (244 kB) Medium resolution TIFF [1280 x 960] (3.2 MB) High resolution TIFF [2560 x 1920] (12.5 MB)

Technical notes:
Rendered: March 1999
Data source: Landsat 5
Data date: 6 May 1992
For: The Landsat Project and GSFC Public Affairs Office