Different SPI time scales |
SPI-1 |
Monthly precipitation data |
Iowa
Mesonet website (https://mesonet.agron.iastate.edu/rainfall/) and
climate data centers (NOAA |
(McKee et al., 1993) |
|
SPI-3 |
|
|
|
|
SPI-6 |
|
|
|
|
SPI-12 |
|
|
|
Different SPEI time scales |
SPEI-1 |
Monthly precipitation and
temperature data |
Iowa Mesonet website
(https://mesonet.agron.iastate.edu/)
and climate data centers (NOAA) |
(Vicente-Serrano et al.,
2010) |
|
SPEI-3 |
|
|
|
|
SPEI-6 |
|
|
|
|
SPEI-12 |
|
|
|
PDSI |
Monthly precipitation and temperature data, soil water holding
capacity |
Iowa Mesonet website
(https://mesonet.agron.iastate.edu/)
and climate data centers (NOAA) |
(Palmer, 1965) |
|
EDDI |
Temperature, relative humidity, wind speed, and solar radiation
data |
Iowa Mesonet website
(https://mesonet.agron.iastate.edu/
) and climate data centers (NOAA) |
(Hobbins et al., 2016) |
|
CMI |
Weekly precipitation and temperature data |
Iowa Mesonet website
(https://mesonet.agron.iastate.ed.u/)
and climate data centers (NOAA) |
(Palmer, 1968) |
|
NDVI |
Satellite imagery data (visible and near-infrared light) |
Satellite data providers (NASA’s MODIS) |
(Rouse Jr et al., 1974) |
|