New GLIMS ASTER L1B data available via ftp

[Rick Wessels]

Hi all,

As I may have mentioned in earlier notes, the folks at Eros Data Center have 
specially processed 2818 L1A scenes over glaciers to L1B for us as a test of 
their capability.  While there are still an abundant number of cloudy scenes in 
this new batch of L1Bs, each region should be able to find some good ones too.

John Dwyer has been placing these new L1B scenes and manual cloud assessment 
stats onto the ftp site that also houses the free Landsat ETM+ data. 
Currently, these data are sorted by regional center number.  John gives further 
details in his note below.

We are working on creating a map based interface for finding data, but I don't 
want to make you wait for that in order to get the data!

Enjoy!
Rick

+++++++++++++++++++++++++++++++++++++++++++++++++++
Rick Wessels, Ph.D.            rwessels at usgs.gov
Arizona State University / U.S. Geological Survey
2255 N. Gemini Drive          Phone(928)-556-7022
Flagstaff, AZ 86001           FAX           -7014

After May 1, 2003
Alaska Volcano Observatory    rwessels at usgs.gov
U.S. Geological Survey Alaska Science Center
4200 University Drive
Anchorage,  AK 99508
voice: 907-786-7492    fax: 907-786-7425
+++++++++++++++++++++++++++++++++++++++++++++++++++


-------- Original Message --------
Subject: GLIMS ASTER Data Status
Date: Mon, 28 Apr 2003 13:10:47 -0500
From: "John L Dwyer" <dwyer at usgs.gov>
To: "Jeffrey S Kargel" <jkargel at usgs.gov>,"Rick Wessels" <rwessels at usgs.gov>
CC: braup at nsidc.org


Jeff and Rick -

We're continuing to populate the ftp directoties with ASTER Level-1B data:

1.    ftp edcsgs16.cr.usgs.gov
2.    User=anonymous, Password=Your_email_address
3.    cd /orders/glims
4.    ls (to list the Regional Center subdirectories)
5.    cd RC__  (to the RC of interest)
6.    cd to ASTER, Landsat7, or MRLC

We are also putting summary information in the form of an Excel spreadsheet
and JPEGs of the scenes
in a different directory.  To get .zip files of JPEGs and the Excel
spreadsheet:

1.    ftp edcsgs16.cr.usgs.gov
2.    User=anonymous, Password=Your_email_address
3.    cd /glims_aster

1to240.zip  -- this file contains JPEGs of scenes that were suspected to
have problems but which may still
be useful.  We leave determination of their usefulness up to the PI.

Row numbers on spreadsheet correlating with jpegs in 1to240.zip file are:
                  32, 43, 55, 65, 91, 97, 155, 176, 180, 196, 200, 210, 213,
225, 226 and 236

L1BfromL1A_GLIMS_list_042503.xls.zip ? this file is an Excel spreadsheet
containing the entire list of 2800 ASTER scenes
processed to Level-1B by the LP DAAC.  This spreadsheet contains the ECS
database-id that is returned by the EOS Data Gateway,
the corresponding ASTER Level-1B filename, the Regional Number (i.e. the RC
subdirectory under which the data are located for ftp-pull),
Acquisition Date, Acquisition Time, Center Latitude, Center Longitude,
Cloud Cover estimate from manual inspection, and Comments.

The following .zip files contain JPEG images for each of the GLIMS ASTER
Level-1B scenes; the numbers embedded in the file names
correspond to the row numbers in the spreadsheet.

VpMZA_002to038.zip
UNrTB_039to076.zip
QzB_077to114.zip
ESNFLC_115to153.zip
DNOb_154to190.zip
Njavb_191to225.zip
242to281.zip
282to321.zip

Currently, there are two granules that have problems and have been referred
to our ASTER Science Data Specialist,
Bhaskar Ramachandran, for further investigation.

                02  SC:AST_L1B.001:2009644664
AST_L1B_00108282001181327_12302002204253
              318  SC:AST_L1B.0012009641604
AST_L1B_00107022001150437_12302002185356


Please pass this information along to our Regional Center colleagues.  Our
goal is to update the spreadhseet,
add more JPEGs, and move the Level-1B data to the approapriate RC
subdirectory on a weekly basis until we
have gotten through all 2800 scenes.

Please let me know if there are any questions.

Cheers,

John


John Dwyer
Project Scientist, Land Processes DAAC
SAIC
USGS EROS Data Center
Sioux Falls, SD 57198
Voice:  605 594-6060
FAX:    605 594-6567
Email: dwyer at usgs.gov
http://edcdaac.usgs.gov