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Tokyo
Sydney
Lima
Cairo
Seoul
DelhiDhaka
Lagos
Paris
Osaka
Manila
TehranLahore
Mumbai
Bogota
London
Moscow
Madras
Beijing
Bangkok
Karachi
Jakarta
Chicago
TianjinNew York Istanbul
Calcutta
Shanghai
Santiago
Kinshasa
Shenyang
Hyderabad
Sao Paulo
Hong Kong
Bangalore
Mexico City
Los Angeles
Buenos Aires
Rio de Janeiro
St. Petersburg
Groundwater Resources of the World
© BGR Hannover / UNESCO Paris 20080 1000 2000 3000 4000 5000 km
extra
cted f
rom: W
orld-w
ide H
ydrog
eolog
ical M
appin
g and
Ass
essm
ent P
rogram
me (W
HYMA
P); w
ww.w
hyma
p.org
Groundwater resources
in major groundwater basinsin areas withcomplex hydrogeological structurein areas with local and shallow aquifers
groundwater recharge (mm/a)very high high medium low very low
0220100300
180° 0° 30° 60° 90° 120° 150°30°60°90°120°150°
0°0°
30°30°
60°60°
30°30°
60°60°
Surface water & Geography
continuous ice sheet
large freshwater lakelarge saltwater lake
major river selected city!
country boundary