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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
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MODIS Web sitehttp://modis.gsfc.nasa.gov/
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Discipline
• We are mostly interested in Land and Atmospheric data
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MODIS Vegetation Indiceshttp://modis-land.gsfc.nasa.gov/vi.htm
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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
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MODIS NDVI and EVI
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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
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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.
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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
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Order Data through the EOS Data Gateway
Please register and create your own account
http://edcimswww.cr.usgs.gov/pub/imswelcome/
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Enter as Registered User
• After registration
Enter the site as registered user
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Primary Data Search Tool
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By Discipline
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Choose Data set
16-day global 250m Sin grid V005
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Spatial Coverage
• For Bangladesh entire Dhaka coordinates
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Temporal coverage
• Select Date and time
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Annually Repeating Time Period
• Julian data January to March (001 to 090)
• From 2000 to 2007
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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
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Start search
• First Save Your search and save as file
• You can also restore search
• Finally start search
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Search in progress
• Will show partial results
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List result data set
• Click on List data granules
Click on Box
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Listing Data Granular
• Select All data and items selected in all pages
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Show Map coverage
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Zoom Spatial coverage
• North part of Bangladesh is in another spatial coverage
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Add selection to Cart
Choose order option
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Choose order option
• Select FtpPull
Every data granule
Click on OK!
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Order as FTP Pull
• Go to Step 2: Order form
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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!
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Order summary
Data summary
Billing
Click on submit order
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Order submitted
• You will receive an email of order notification
• That’s it! • It takes 2 hours to 2 months !
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Thank you!
Questions