How to Download MODIS Images Dr. A.K.M. Saiful Islam, IWFM, BUET Dr. Sujit Kumar Bala, IWFM, BUET Mr. M. Golam Mahboob, BARI December 2007

MODIS Web site

Discipline We are mostly interested in Land and Atmospheric data

MODIS Vegetation Indices

MODIS/Terra Vegetation Indices 16-Day L3 Global 250m SIN Grid V005 EDG Data Set NameShortName MODIS/Terra Vegetation Indices 16-Day L3 Global 250m SIN Grid V005 MOD13Q1 Versi on Acquisition Range Science Quality Status 003 August 29, 2002 – October 7, 2002 ProvisionalProvisional from 11/01/ February 24, 2000 – December 31, 2006 Validated Stage 1Validated Stage 1 from 04/06/ February 24, Validated Stage 2Validated Stage 2 from 02/18/2000

MODIS NDVI and EVI

Data Characteristics Area: ~10 degrees x 10 degrees lat/long Dimensions: 4800 x 4800 rows/columns File Size: ~ MB Resolution: 250 meters Projection: Sinusoidal Data Format: HDF-EOS Science Data Sets (SDS HDF Layers): 1212

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 PoolLP DAAC Data Pool 2.Via Search Tool: b=esdt&esdt=MOD13Q1.5&group=MOLT b=esdt&esdt=MOD13Q1.5&group=MOLT 3.Via FTP Directory: ftp://e4ftl01u.ecs.nasa.gov/MOLT/MOD13Q1.005/ ftp://e4ftl01u.ecs.nasa.gov/MOLT/MOD13Q1.005/ 4.Order Data through the EOS Data Gateway ( EOS Data Gateway Search Tips Data 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: to present

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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 ( ) = 48 data version 005

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Zoom Spatial coverage North part of Bangladesh is in another spatial coverage

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