Vegetation Index Visualization of individual composite period. The tool provides a color coded grid display of the subset region. The tool provides time.

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Presentation transcript:

Vegetation Index Visualization of individual composite period. The tool provides a color coded grid display of the subset region. The tool provides time series plots, color coded image display for individual composite periods, ASCII files of the pixel values along with quality information, average and standard deviations of the pixels for the area selected, and a GeoTIFF file that can be imported directly into GIS software. The tool provides MODIS Land cover data for the subset region. Hyperlinks to maps and documentation are provided. MODIS Vegetation Index for area in Yosemite National Park, CA This web-based interface facilitates the creation of subsets 1x1 km up to 201x201 km of MODIS Land Products for user-selected areas worldwide and for user-selected time periods during the MODIS record. Many visualization and download options are also provided. Web Site:  User selects MODIS Land Product, center coordinates or site, areal extent, and period of interest  Processing of request takes 10 to 60 minutes for most products  User receives an with URL to download data files and view graphics MODIS Land Product Subsets for Globe For additional information contact Suresh Kumar Oak Ridge National Laboratory Distributed Active Archive Center The tool provides MODIS land cover subsets for the area requested by the user. Data Download Options Comma Separated Value (CSV) ASCII file QC filtered ASCII file GeoTIFF GIS image file with reprojection capability Statistical data of the subset Programmatically retrieve subsets Real time data delivery Integrate with client side tools ################ # ORNL DAAC MODIS Web service - Perl client ################# use SOAP::Lite -> service(‘WSDL_URL') -> xmlschema(' -> getsubset(lat,lon,product,start_date,end_date,size); MOD11A2.A h26v Clear_sky_days,MOD11A2,A ,Lat3 7.7Lon110Samp1Line1, ,Clear_ sky_days,NA,0.000,2 MOD11A2.A h26v Clear_sky_nights,MOD11A2,A ,Lat 37.7Lon110Samp1Line1, ,Clear _sky_nights,NA,0.000,254 MODIS Web Service : Server SOAP Client Code/Workflow

The ORNL DAAC prepares and distributes subsets of selected MODIS (Moderate Resolution Imaging Spectroradiometer) Land Products in a scale and format useful for field researchers. MODIS Collection 5 subsets are offered for more than 1000 sites worldwide. Subsets are provided at 0.25, 0.5 or 1-km resolution for 7 x 7 km (ASCII) or 25 x 25 km (GeoTIFF) areas at each of the field or flux tower sites. Land Surface Temperature, Walker Branch,TN Web Site: MODIS Land Product Subsets for Selected Field Sites MODIS Land Products Subsetted Surface Reflectance Surface Temperature Land Cover Phenology (Winter 2009) NDVI / EVI LAI / fPAR Net Photosynthesis Annual NPP Albedo (Model and Calculated) Reflectance – BRDF Adjusted Several methods to obtain Subsets are offered:  Pick lists  MODIS Product Table  WebGIS Tool  GeoTIFF Images  Google Earth  FTP download Site PixelMean Value of Pixels Percent of Pixels that meet QC Criteria MODIS GeoTIFF subsets MODIS Composite Period Grid Visualization and Subset information in MODIS Tile Mapper For additional information contact Suresh Kumar Oak Ridge National Laboratory Distributed Active Archive Center 1,147 Subset Sites