Table 3 Exposure index variables and associated information.
From: Indexing climatic and environmental exposure of refugee camps with a case study in East Africa
Variable | Phenomenon | Units | Observation period | Spatial resolution | Source |
|---|---|---|---|---|---|
Climate and weather | |||||
 PDSI average | Drought | (unitless) | 2000–2020 | 0.04° | TerraClimate Palmer Drought Severity Index |
 Precipitation: change in annual accumulation | Drought/Flood | mm/pentad | 1981–2020 | 0.05° | UCSB CHIRPS Pentad Annual Average Precipitation change |
 Precipitation: interannual coefficient of variation | Drought/flood | mm/pentad | 1990–2020 | 0.05° | UCSB CHIRPS |
 Precipitation: maximum monthly anomaly in MAM (March–April–May) season (PMAX) | Flood | mm/pentad | 2000–2020 | 0.05° | UCSB CHIRPS |
 Temperature: annual daytime maximum surface temperature (TXx) | Drought | Kelvin | 2010–2020 | 2.5° | CFSV2: NCEP Climate Forecast System Version 2, 6-Hourly Products; Maximum temperature 2 m above ground, 6-h interval (12:00) |
Temperature: long-term anomaly (ΔT), | Drought | Kelvin | 1951–2020 | 2.5° | NCEP/NCAR Reanalysis Data, Surface Temperature |
Specific humidity (Q) | Drought | kg kg-1 | 2000–2020 | 0.1° | FLDAS: Famine Early Warning Systems Network |
Geophysical | |||||
Flow accumulation | Flood | (derived) | N/A | 0.004° | WWF HydroSHEDS Flow Accumulation |
Friction | Landslide | km/hr | N/A | 0.01° | Oxford Global Friction Surface 2019 |
Slope | Landslide | meters | N/A | 0.001° | SRTM Digital Elevation Data Version 4 |
Surface soil moisture (SSM) | Drought | mm | 2015–2020 | 0.1° | ASA-USDA Enhanced SMAP Global Soil Moisture Data Surface |
