# Changes in the grasslands of the Caucasus based on Cumulative Endmember Fractions from the full 1987-2019 Landsat record

Vegetation change maps produced for the paper: Lewińska, K.E., Buchner, J., Bleyhl, B., Hostert, P., Yin, H., Kuemmerle, T., Radeloff, V.C., 2021, Changes in the grasslands of the Caucasus based on Cumulative Endmember Fractions from the full 1987-2019 Landsat record, Science of Remote Sensing 4, https://doi.org/10.1016/j.srs.2021.100035

data available at: http://silvis.forest.wisc.edu/data2/vegetation-change-grasslands-caucasus/

## Data description:
The complete dataset comprises six files with 32 bands each, where each band corresponds to a consecutive year in the 1988-2019 time series.
- LANDSAT_DegradationRate_D1_Stack: annual 1988-2019 mean rate of green vegetation loss (a shift from the green vegetation fraction to soil fraction)
- LANDSAT_DegradationRate_D2_Stack: annual 1988-2019 mean rate of desiccation (a shift from green vegetation to non photosynthetic vegetation fraction)
- LANDSAT_DegradationRate_D3_Stack: annual 1988-2019 mean rate of dry vegetation loss (a shift from non photosynthetic vegetation to soil fraction)
- LANDSAT_RevegetationRate_R1_Stack: annual 1988-2019 mean rate of  revegetating green fraction (a shift from soil to green vegetation)
- LANDSAT_RevegetationRate_R2_Stack: annual 1988-2019 mean rate of greening (a shift from non photosynthetic vegetation to green vegetation)
- LANDSAT_RevegetationRate_R3_Stack; annual 1988-2019 mean rate of revegetating dry fraction (a shift from soil to non photosynthetic vegetation)


`METADATA:
Driver: GTiff/GeoTIFF (ZSTD compression)
Size is 57120, 42877
Coordinate System is:
GEOGCS["WGS 84",
    DATUM["WGS_1984",
        SPHEROID["WGS 84",6378137,298.257223563,
            AUTHORITY["EPSG","7030"]],
        AUTHORITY["EPSG","6326"]],
    PRIMEM["Greenwich",0],
    UNIT["degree",0.0174532925199433],
    AUTHORITY["EPSG","4326"]]
Origin = (36.438901858910626,47.443174257846351)
Pixel Size = (0.000269494585236,-0.000269494585236)
Metadata:
  AREA_OR_POINT=Area
Image Structure Metadata:
  COMPRESSION=ZSTD
  INTERLEAVE=PIXEL
Corner Coordinates:
Upper Left  (  36.4389019,  47.4431743) ( 36d26'20.05"E, 47d26'35.43"N)
Lower Left  (  36.4389019,  35.8880549) ( 36d26'20.05"E, 35d53'17.00"N)
Upper Right (  51.8324326,  47.4431743) ( 51d49'56.76"E, 47d26'35.43"N)
Lower Right (  51.8324326,  35.8880549) ( 51d49'56.76"E, 35d53'17.00"N)
Center      (  44.1356672,  41.6656146) ( 44d 8' 8.40"E, 41d39'56.21"N)`


Complete methodology description and accuracy available in the paper.

### Disclaimer:
No commercial application is allowed. The authors accept no responsibility for errors or omissions in this work and shall not be liable for any damage caused by these.

### Please cite the data as:
Lewińska, K.E., Buchner, J., Bleyhl, B., Hostert, P., Yin, H., Kuemmerle, T., Radeloff, V.C., 2021, Changes in the grasslands of the Caucasus based on Cumulative Endmember Fractions from the full 1987-2019 Landsat record, Science of Remote Sensing 4, https://doi.org/10.1016/j.srs.2021.100035