Global Systems Flashcards
How much ice is Greenland losing?
270 billion tons a year
How much ice is Antarctica losing?
150 billion tons a year
How much are sea levels rising by?
3.6mm a year
How much will sea levels rise by?
55cm by 2100
What will sink and when?
Maldives by 2100
How much will delta flooding increase by?
50%
Why is Bangladesh vulnerable?
Situated in the Ganges-Brahmaputra delta
173 million people
How much rainfall does the summer monsoon bring?
75% of annual Indian rainfall
2/3rds of annual rainfall in Mangalore comes within 3 months
How often does ENSO occur?
Every 3 to 7 years
What were the effects of the 2023 ENSO?
Droughts in Latin America and Australia
Wetter conditions in the American South
When was the GRACE satellite?
Gravity Recovery and Climate Experiment
NASA in 2002
What is SEOF?
Saturation Excess Overland Flow
Antecedent rainfall raises water tables - restricting infiltration
What is IEOF?
Infiltration Excess Overland Flow
Precipitation intensity exceeds infiltration capacity
Flows in the Water cycle
Precipitation
Through fall
Stem flow
Infiltration
Percolation
Transpiration ^
Evaporation ^
Evapotranspiration ^
Surface runoff <
Throughflow <
Baseflow <
How much rainfall does the river Exe drainage basin receive?
How much is runoff?
1,300 mm a year
65% runoff