Date: Fri, 21 Dec 2001 12:37:30 -0700 From: Rick Wessels <rwessels@flagmail.wr.usgs.gov> X-Mailer: Mozilla 4.77 [en] (WinNT; U) X-Accept-Language: en To: Siri Jodha Singh Khalsa <sjsk@nsidc.org> Subject: Re: GLIMS ASTER data update

Hi,

username: glimsguest password: ber1ng789 (note that the middle character is a "one" and NOT a capital I : )

I hope you have a good long weekend... Rick

Siri Jodha Singh Khalsa wrote:

...

Hey Rick,

can I get the username, password for the how-to guides section of the glims website?

thanks

sjs khalsa

At 01:50 PM 5/11/2001 -0700, you wrote:

...

Dear GLIMS Colleagues,

We are pleased to announce that by the end of next week, glims.org will become our official website address. We will also be reached by glims.net, but glims.com is already use by a private software company. Several additions have been made to both our main GLIMS website and our protected website. The biggest addition is a link to a new web page with an interactive map showing ASTER scenes for all Regional Centers at: http://wwwflag.wr.usgs.gov/GLIMS/astermaps.html This map presents a web-based searchable version of our Flagstaff ASTER database in ArcView. For those of you who have the latest version of ArcView or ArcExplorer, you may also access this data as a map service to add the map layers to your existing ArcView maps. Please check the linked ArcIMS help files if you are unfamiliar with

ArcIMS or ArcView.

As reflected in the above map service, the ASTER scene lists by Regional Center have finally been updated for each regional center on our protected website (We have added a link to the protected site on the GLIMS homepage). As of April 25, there were over 9400 images over glaciers with 4100 acquired using GLIMS appropriate gain settings. Due to a major system upgrade at EDC, few scenes were added to the EDG since April 26. They should be back up to speed soon. We've also added a new example of ASTER data (in a gzipped HDF format) acquired with GLIMS gain settings from the North Patagonia Ice Field in Chile.

In addition to the image lists for each regional center, we've again posted a table (procrc.tab) that contains scene statistics for all glacier areas and

each Regional Center. The first entry of the procrc.tab file represents a count of all ASTER scenes listed at EDG that cover glacier areas(see below). This

entry is followed by a block for each RC. This file is the best place to find each area's RC number so that the appropriate RC#.tab file may be downloaded by individual groups.

File=/farm/hhk1/aster/GLIMS/searches/glacierbyregion_oct11-apr25.txt # scenes: total, 1A, 1B, other= 9435 8916 519 0 GLIMS=4101 OFF HIGH NORM LOW Low1 Low2 ON Sub 0 1 2 3 4 5 6 7 8 9 VNIR 0 4467 4831 75 0 0 62 0 0 0 3aft 62 37 9261 75 0 0 0 0 0 0 SWIR 62 4175 5123 0 0 75 0 0 0 0 TIR 62 0 0 0 0 0 9373 0 0 0 ----------------------------------------------------------

As we've stated before, many of these scenes may be cloud-covered. The listed cloud values in the image list are not dependable except that very low values often accurately reflect clear scenes.

PLEASE NOTE: The format for the ASTER image lists (RC#.tab) has changed slightly from the previous files. Instead of center lat/long and scene twist, we now list the four scene corners. This provides more accurate plotting of scene boundaries within GIS applications. We have also listed the four instrument gain settings as four numbers in the V3ST column. The file format and values are explained in theRC_header_description.txt file on the web page.

We are sorry for the delay in posting new data and any inconvenience we may

have caused for you. Please contact us if you have any questions.

Sincerely, -- Rick Wessels +++++++++++++++++++++++++++++++++++++++++++++++++++++ Rick Wessels, Ph.D. rwessels@flagmail.wr.usgs.gov U.S. Geological Survey Phone (520)-556-7022 2255 N. Gemini Drive FAX -7014 Flagstaff, AZ 86001 Main Office -7000 +++++++++++++++++++++++++++++++++++++++++++++++++++++

Siri Jodha Singh Khalsa, Ph.D. %%% Emergent Technology Services, Inc. ECS Science Coordinator for the National Snow and Ice Data Center Campus Box 449 / 1540 30th St. Boulder, CO 80309 Phone: (303) 492-1445 FAX: (303) 492-2468 http://spot.colorado.edu/~khalsa

-- ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Rick Wessels rwessels@flagmail.wr.usgs.gov U.S. Geological Survey Phone(928)-556-7022 <-- Note new area code 2255 N. Gemini Drive FAX -7014 as of June 2001 Flagstaff, AZ 86001 Main Office -7000 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

Siri Jodha Singh Khalsa, Ph.D. %%% Emergent Technology Services, Inc. ECS Science Coordinator for the National Snow and Ice Data Center Campus Box 449 / 1540 30th St. Boulder, CO 80309 Phone: (303) 492-1445 FAX: (303) 492-2468 http://spot.colorado.edu/~khalsa