From: Maize yield forecast using GIS and remote sensing in Kaffa Zone, South West Ethiopia
Types of data | Description | Source | Purpose |
---|---|---|---|
DEM | Aster 30 m resolution | United States Geological Survey(USGS) | For maize elevation generates |
Pan sharpened SPOT 6 image | Spatial resolution of 1.5 m,Panchromatic and 6 m Multispectral, 12 bit Radiometric resolution, 1 days Temporal resolution &Path/raw—170/55 | Ethiopian Geospatial Information Agency (EGIA) | In order to perform supervised LULC classification, |
CHERIPS rainfall | Spatial resolution:(0.050*0.050), Frequency: dekadal, Archive:2008–2017& Format:netCDF | Downloading from https://data.chc.ucsb.edu/products/CHIRPS-2.0/africa_dekad/tifs/ | Used to calculate yearly average rainfall to correlate it with maize yield |
potential evaporation(pet) | 1 km*1 km Spatial resolution, Frequency: dekadal, Archive: 2008–2017& Format:netCDF | National Meteorology Agency of Ethiopia(NMA) | Used to calculate WRSI to correlate it with maize yield |
eMODIS NDVI | 250 m*250 m special resolution, 12bits radiometric resolution, 1–2 days Temporal resolution, Frequency: dekadal& Archive:2008–2017 | Downloading from https://earlywarning.usgs.gov/fews/datadownloads/East%20Africa/eMODIS%20NDVI%20C6 | Used To calculate yearly average NDVI to correlate it with maize yield |
Eta (actual evaporation) | 1 km*1 km special resolution,8 bit spectral resolution, 16 days Temporal resolution, Frequency: dekadal & Archive: 2008–2017 | downloaded freely from https://earlywarning.usgs.gov/fews/datadownloads/Continental%20Africa/Monthly%20ET%20Anomaly | Used to calculate yearly average Eta,Eta total and WRSI to correlate these variables with maize yield |
Maize yield(qt/ht) | Archive data from 2008 to 2017 | Central Statistical Agency annual agricultural report, 2018 | To calibrate the developed model with historical crop yield statistics |
Ground Truth and Accuracy Assessment Points | Using HH GPS Garmin62, generate random coordinates from each land use | Bonga University | For accuracy assessment of the supervised classification |
Study area boundary | Shape file | Central Statistics Agency of Ethiopia (CSA), 2007 | Used to demarcate the study area boundary |