Klamath Network July Enhanced Vegetation Index (EVI)
Duff AA, Duff A, Duff AA. 2004. Klamath Network July Enhanced Vegetation Index (EVI). Boston University and the University of Montana under contract with the National Aeronautic and Space Administration
This Dataset Consists of Monthly Composite NDVI (Normalized Difference Vegetation Index ) and EVI (Enhanced Vegetation Index) (MOD1A3) for July 2004 in the Klamath Network. Data is an monthly average for July (Day 183). This dataset has been adjusted to represent real values. Three granules were obtained, converted from HDF-EOS format into tifs and projected to UTM NAD83. Datasets were mosiaced then masked to the modis mask. Data has a 1000 m spatial resolution. For more information see the modis user guide in this directory or on the WWW at http://cybele.bu.edu/modismisr/products/modis/userguide.pdf. This product uses, as input, the 16 days MODIS Vegetation Index and composited surface reflectance (MOD13A2 product). All available 16 days MODIS VI products (a maximum of 3) that overlap the calendar month are used. A temporal averaging scheme is used to generate the monthly product. Each 16 day product is weighted by the number of actual days that overlap the month being processed. Two vegetation index (VI) algorithms are produced globally for land. One is the standard normalized difference vegetation index (NDVI), which is referred to as the "continuity index" to the existing NOAA-AVHRR derived NDVI. The other is an 'enhanced' vegetation index with improved sensitivity into high biomass regions and improved vegetation monitoring through a de-coupling of the canopy background signal and a reduction in atmosphere influences. The two VIs compliment each other in global vegetation studies and improve upon the extraction of canopy biophysical parameters.
- Type
- Geospatial Dataset
- Authors
- Duff, Andrew; Duff, Andrew; Duff, Andrew
- Date of Issue
- 2004
- Publisher
- Boston University and the University of Montana under contract with the National Aeronautic and Space Administration
- Units
- CRLA , KLMN , LABE , LAVO , ORCA , REDW , WHIS
- Keywords
- California, Crater Lake National Park, CRLA, EVI (Enhanced Vegetation Index), Geoscientific Information, Klamath Network, Klamath Network Network, KLMN, LABE, Land Use / Cover, Lassen Volcanic National Park, Lava Beds National Monument, LAVO, MODIS, NDVI (Normalized Difference Vegetation Index), ORCA, Oregon, Oregon Caves National Monument, REDW, Redwood National and State Parks, WHIS, Whiskeytown National Recreation Area