How to Download MODIS Images

Dr. A.K.M. Saiful Islam, IWFM, BUETDr. Sujit Kumar Bala, IWFM, BUET

Mr. M. Golam Mahboob, BARI

December 2007

MODIS Web sitehttp://modis.gsfc.nasa.gov/

Discipline

• We are mostly interested in Land and Atmospheric data

MODIS Vegetation Indiceshttp://modis-land.gsfc.nasa.gov/vi.htm

MODIS/Terra Vegetation Indices 16-Day L3 Global 250m SIN Grid V005

EDG Data Set Name ShortName

MODIS/Terra Vegetation Indices 16-Day L3 Global 250m SIN Grid V005

MOD13Q1

Version

Acquisition RangeScience Quality Status

003August 29, 2002 – October 7, 2002

Provisional from 11/01/2000

004February 24, 2000 – December 31, 2006

Validated Stage 1 from 04/06/2000

005 February 24, 2000 -  Validated Stage 2 from 02/18/2000

MODIS NDVI and EVI

Data Characteristics

• Area: ~10 degrees x 10 degrees lat/longDimensions: 4800 x 4800 rows/columnsFile Size: ~ 5 - 270 MBResolution: 250 metersProjection: SinusoidalData Format: HDF-EOSScience Data Sets (SDS HDF Layers): 12

Product Description

• Global MODIS vegetation indices are designed to provide consistent spatial and temporal comparisons of vegetation conditions. Blue, red, and near-infrared reflectances, centered at 469-nanometers, 645-nanometers, and 858-nanometers, respectively, are used to determine the MODIS daily vegetation indices.

• The MODIS NDVI and EVI products are computed from atmospherically corrected bi-directional surface reflectances that have been masked for water, clouds, heavy aerosols, and cloud shadows.

• Version-5 MODIS/Terra Vegetation Indices products are Validated Stage 2, meaning that accuracy has been assessed over a widely distributed set of locations and time periods via several ground-truth and validation efforts.  Although there may be later improved versions, these data are ready for use in scientific publications.

Download Retrieve the MOD13Q1.5 MODIS product through the

1. LP DAAC Data Pool2. Via Search Tool:

http://e4eil01u.ecs.nasa.gov:22000/WebAccess/drill?attrib=esdt&esdt=MOD13Q1.5&group=MOLT

3. Via FTP Directory: ftp://e4ftl01u.ecs.nasa.gov/MOLT/MOD13Q1.005/

4. Order Data through the EOS Data Gateway(http://edcimswww.cr.usgs.gov/pub/imswelcome/)

• EOS Data Gateway Search TipsData Center:LPDAACSensor:MODISDataset:MODIS/Terra Vegetation Indices 16-Day L3 Global 250m SIN Grid V005Spatial:HORIZONTALTILENUMBER Max/Min VERTICALTILENUMBER Max/MinGeographic Extent:Type Lat/Long Range or Draw on MapTemporal Extent:2000-02-18 to present

Order Data through the EOS Data Gateway

Please register and create your own account

http://edcimswww.cr.usgs.gov/pub/imswelcome/

Enter as Registered User

• After registration

Enter the site as registered user

Primary Data Search Tool

By Discipline

Choose Data set

16-day global 250m Sin grid V005

Spatial Coverage

• For Bangladesh entire Dhaka coordinates

Temporal coverage

• Select Date and time

Annually Repeating Time Period

• Julian data January to March (001 to 090)

• From 2000 to 2007

Additional Search Options

• Thermal data : you may select day or night

You can change from default 100 to desire no of data granular

Each year 6 (16 day) x 8 years (2000-2007) = 48 data version 005

Start search

• First Save Your search and save as file

• You can also restore search

• Finally start search

Search in progress

• Will show partial results

List result data set

• Click on List data granules

Click on Box

Listing Data Granular

• Select All data and items selected in all pages

Show Map coverage

Zoom Spatial coverage

• North part of Bangladesh is in another spatial coverage

Add selection to Cart

Choose order option

Choose order option

• Select FtpPull

Every data granule

Click on OK!

Order as FTP Pull

• Go to Step 2: Order form

Review order form

• At the end of the order form

• Please click on Go to Step 3: Review order summary Before submitting order

• OR, you can directly Submit Order Now!

Order summary

Data summary

Billing

Click on submit order

Order submitted

• You will receive an email of order notification

• That’s it! • It takes 2 hours to 2 months !

Thank you!

Questions