UBN_precip:
Upper Blue Nile basin precipitation, June-Sept total in mm, 1961-2000


UBN_predictors:
Upper Blue Nile basin predictors for 1961-2000
Col1-5 are averages of March-May values
Col6-7 are May values

Col1: sea-level pressures index, Pacific Ocean
Col2: sea-surface temperatures index, Pacific Ocean and western India
Col3: outgoing longwave radiation, Indian Ocean
Col4: geopotential height (500mb), south Atlantic Ocean
Col5: air temperature index, Ethiopia and Sudan
Col6: Palmer drought severity index (PDSI), northern Ethiopia/Red Sea
Col7: PDSI, with upper Blue Nile basin, Lake Tana