Fwd: Re: GLIMS ASTER data update
Siri Jodha Singh Khalsa
sjsk at nsidc.org
Wed Jan 30 11:34:53 MST 2002
>X-Authentication-Warning: bur.wr.usgs.gov: rwessels owned process doing -bs
>Date: Thu, 27 Dec 2001 00:21:03 -0700 (MST)
>From: "Rick Wessels (ASTRO) (928) 556-7022" <rwessels at flagmail.wr.usgs.gov>
>To: Siri Jodha Singh Khalsa <sjsk at nsidc.org>
>cc: Rick Wessels <rwessels at flagmail.wr.usgs.gov>
>Subject: Re: GLIMS ASTER data update
>
>Hi,
>
>The "V3ST" column gives the gain settings. Thes specific values are
>described in the readme at
>http://www.glims.org/usgsdist/rc_data/RC_header_description.txt
>
>Talk to you later.
>Rick
>
>On Fri, 21 Dec 2001, Siri Jodha Singh Khalsa wrote:
>
> > Rick,
> > Thanks. Question: in the granule listing, is there something indicating
> > the gain settings? Is it in these: "Scenecc","V3st","Raddb"?
> >
> > sjs
> >
> > At 12:37 PM 12/21/2001 -0700, you wrote:
> > >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 at 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 at 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
> >
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
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