types of drought Flashcards
meterological drought
less precipitation as a result of short term variability within the long term average
agricultural drought
rainfall deficiency leads to a deficiency of soil water storage , affects plant growth
famine drought
a humanitarian crisis where the widespread agricultural failure leads to food shortages
teleconnection
climate anomalies which relate to each other at league distances
serious rainfall deficiency
rainfall totals 10% of usual values for 3 months
severe rainfall deficiency
rainfall totals 5% of usual values for 3 months
physical causes of drought
low, highly variable levels of rainfall (climate is dominated by the subtropic high pressure belt)
El Niño
shift in rainfall patterns in eastern areas