USGS/EROS eMODIS Status Report
**UPDATE NOTICE 10/12/2011**

On November 1, 2011, USGS/EROS will:
1) REMOVE FTP ACCESS for eMODIS COMPOSITE PRODUCTS
2) IMPLEMENT PRODUCT FILE NAME CHANGES


USGS FTP REMOVAL

NOTE: Data access will be supported through HTTP only starting November 1, 2011:
http:/dds.cr.usgs.gov/emodis/

A U.S. Department of Interior/USGS security policy calls for the 
elimination of all anonymous FTP service.  As a result, USGS/EROS 
is replacing FTP delivery methods with HTTP capabilities.

Through October 2011, USGS/EROS will support tandem access of FTP 
and HTTP for customers; FTP through emodisftp.cr.usgs.gov and 
HTTP through dds.cr.usgs.gov.  This will provide data users the transition 
time needed for changing necessary data access modifications in FTP 
scripting to the new HTTP data distribution server.

For replacing command line FTP capabilities in data access and scripting 
changes, there is an open source function called wget that is supported 
in several environments, including Microsoft Windows, Linux, Mac, OpenVMS, 
and AmigaOS.  For wget information and download instructions, please see the 
GNU Web site at http://www.gnu.org/software/wget

Example of Windows wget for downloading a directory:
wget -nd -r http://dds.cr.usgs.gov/emodis/CONUS/historical/TERRA/2011/comp_171


PRODUCT FILE NAME CHANGE

A slight change is being made to the product file names, and will 
include a region identifier.  This will impact expedited and forward 
processing starting on November 1, 2011.  An additional metadata file and 
browse file will be included in the NDVI product as well.  The composite product 
areas are Conterminous U.S., Africa, Central Asia, Central America/Caribbean: 
US, AF, CA, CC are the region identifiers, respectively.  We will also begin 
re-packaging the historical products in November.  Alaska production will 
start soon and will include the region identifier as well.

Examples of zip and internal tif file names, respectively:
CC_eMTE_NDVI.2011.274-283.QKM.COMPRES.005.2011032033700.zip
CC_eMTE_NDVI.2011.274-283.QKM.VI_NDVI.005.2011032033700.tif

CC      = Central America/Caribbean (or AK, AF, CA, US)
eM      = eMODIS 
T       = Terra (or A for Aqua)
E       = Expedited (or H for Historical)
NDVI    = band (or REFL for Reflective bands)
2011    = year
274-283 = Julian composite dates
QKM     = 250m (or HKM for 500m, or 1KM for 1000m)
COMPRES or VI_NDVI = zipped or band type
005     = Version of input source data
2011032033700 = YYYYJJJHHMMSS

The CONUS products require additional changes regarding consistency in file names:
OLD =  composite250m_TERRA_NDVI_2011_276.zip
OLD =  MT3RG_2011_270-276_250m_composite_ndvi.tif
NEW =  US_eMTE_NDVI.2011.270-276.QKM.COMPRES.005.2011032033700.zip
NEW =  US_eMTE_NDVI.2011.270-276.QKM.VI_NDVI.005.2011032033700.tif


OTHER NEWS

Starting in the fall of 2011, the forward and historical eMODIS composite areas of 
Alaska, Conterminous U.S., Africa, Central Asia and Central America/Caribbean 
will be available through EarthExplorer at http://earthexplorer.usgs.gov

USGS/EROS is encouraging the use of EarthExplorer for accessing 
USGS data sets including the eMODIS composites.

If you have questions regarding these changes, or if you would like 
to be added to an eMODIS email list for future information, please 
contact us at lta@usgs.gov