[UW-GIS-L] Imagery For Everyone (fwd)

[A. Zald]

Attached is a news release from the USGS announcing that their 35 year 
archive of Landsat imagery is on a fast track for free online distribution 
by the end of January 2009.  If the attachment doesn't come through it is 
also posted in the news section of http://wagda.lib.washington.edu/

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Anne Zald
Map Collection & Cartographic Information Services
University of Washington Libraries
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SILS Information Bulletin 



Number:  08-09 Imagery for Everyone? 

Timeline Set to Release Entire USGS Landsat Archive at No Charge. 

Date:        April 23, 2008



RESTON, VA ? The USGS Landsat archive is an unequaled 35-year record of 

the Earth?s surface that is valuable for a broad range of uses, ranging 

from climate change science to forest management to emergency response, 

plus countless other user applications.  Under a transition toward a 

National Land Imaging Program sponsored by the Secretary of the Interior, 

the USGS is pursuing an aggressive schedule to provide users with 

electronic access to any Landsat scene held in the USGS-managed national 

archive of global scenes dating back to Landsat 1, launched in 1972.  By 

February 2009, any archive scene selected by a user ? with no restriction 

on cloud cover ? will be processed automatically to a standard product 

recipe, using such parameters as the Universe Transverse Mercator 

projection, and staged for electronic retrieval.  In addition, newly 

acquired scenes meeting a cloud cover threshold of 20% or below will be 

processed to the standard recipe and placed on line for at least six 

months, after which they will remain available for selection from the 

archive.



Newly acquired, minimally cloudy Landsat 7 Enhanced Thematic Mapper Plus 

(ETM+) data covering North America and Africa are already being 

distributed by the USGS over the Internet at no charge, with expansion to 

full global coverage of incoming Landsat 7 data to be completed by July 

2008 (see timeline below).  The full archive of historical Landsat 7 ETM+ 

data acquired by the USGS since launch in 1999 will become available for 

selection and downloading by the end of September 2008.  At that time, all 

Landsat 7 data purchasing options from the USGS, wherein users pay for 

on-demand processing to various parameters will be discontinued. 



By the end of December of 2008, both incoming Landsat 5 Thematic Mapper 

(TM) data and all Landsat 5 TM data acquired by the USGS since launch 

(1984) will become available, with all Landsat 4 TM (1982-1985) and 

Landsat 1-5 Multi-Spectral Scanner (MSS) (1972-1994) data becoming 

available by the end of January 2009.  All Landsat data purchasing options 

from the USGS will be discontinued by February 2009, once the entire 

Landsat archive can be accessed at no charge. 



Landsat scenes can be previewed and downloaded using the USGS Global 

Visualization Viewer at:  http://glovis.usgs.gov [under ?Select 

Collection? choose Landsat archive: L7 SLC-off (2003-present)].  Scenes 

can also be selected using the USGS Earth Explorer tool at 

http://earthexplorer.usgs.gov [under ?Select Your Dataset? choose Landsat 

Archive: L7 SLC-off (2003-present)].  For further information on Landsat 

satellites and products, see http://landsat.usgs.gov





For further information on USGS Land Remote Sensing please visit our 

website: landremotesensing at usgs.gov



Sheryle Girk-Jackson 303 202 4176, FAX 303 202 4633, email: 

sjjackson at usgs.gov 





















Sheryle J. Girk-Jackson

Technical Information Specialist/Business Acquisitions

USGS/ESIC





 
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