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The NDVIEVI_SPA functions in two modes: Standalone, or as an IPOPP plug-in.
The DRL has packaged this Science Processing Algorithm (SPA) with Version 1 of the algorithm wrapper. The algorithm wrapper provides a common command and execution interface to encapsulate multi-discipline, multi-mission SPAs. The wrapper also provides a structured, standardized technique for packaging new or updated algorithms with minimal effort.
This Normalized Difference Vegetation Index (NDVI)/Enhanced Vegetation Index (EVI) algorithm uses all three MODIS Level 1B files (1KM, HKM and QKM) and outputs NDVI and EVI in a single HDF file. NDVI/EVI is a daytime only product. The algorithm is applied on corrected reflectances in MODIS bands 1, 2 and 3.
Download the NDVIEVI_2.2_SPA_1.0.tar.gz and NDVIEVI_2.2_SPA_1.0_testdata.tar.gz (optional) files into the same directory.
Decompress and un-archive the NDVIEVI_2.2_SPA_1.0.tar.gz and NDVIEVI_2.2_SPA_1.0_testdata.tar.gz (optional) files:
$ tar -xzf NDVIEVI_2.2_SPA_1.0.tar.gz
$ tar -xzf NDVIEVI_2.2_SPA_1.0_testdata.tar.gz
See the PDF document included within the software package for more details.
The program may be executed using the run scripts, or by modifying the run-ndvievi script in the testscripts directory. See the PDF document included within the software package for more details.