262S11+PP_7+Navigating+Google+Earth

262S11+PP_7+Navigating+Google+Earth -...

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Unformatted text preview: Note
the
push‐pins
 and
the
photo
sweeps
.
 You
can
construct
a
 flythrough
of
marked
 sites
 Pop:
c.
80M;
 90%
along
Nile
 and
in
delta
on
 4%
of
land
area
 50‐60%
are
 fellahin
(rural
 peasants)
 Entire
country
is
 very
heavily
 dependent
on
 Nile
for
water;
 rainfall
is
 negligible
 Aswan
High
Dam,
completed
1970

 reservoir
filled
by
1976.
Regulates
river

 flow
of
world’s
longest
river,
generates

 hydroelectric
power.
 Lake
Nasser:
340
miles
long,
stretches
 
into
Sudan,
traps
sediment
(that
used
 to
fertilize
downstream
fields)
as
well
as
 water.
 Agricultural
expansion
into
lands

 outside
the
floodplain
of
the
Nile
 between
2002
(next
slide)
and
2010.

 Town
lies
outside
floodplain;
feeder

 Canal
from
Nile.
 The
town
of
Aulad
Salama
lies
at
the
junction
of
the
Nile
floodplain
and
the
desert
margin.

 The
floodplain
receives
water
from
irrigation
canals
on
a
regular
basis;
places
outside
the
 
floodplain
rely
on
wells
and
other
sources.
Many
other
places
along
the
Nile
valley
show

 similar
expansion
of
cultivated
areas.
Although
population
growth
rates
have
decreased

 in
recent
years
Egypt
needs
to
increase
the
amount
of
cultivated
land
by
50%
over
the

 next
10‐20
years
just
to
keep
pace
with
demands
for
higher
rural
incomes
and
better

 nutrition.
 Note
the
diversion
of
water
from
Lake
Nasser
into
desert
 depressions
after
1997
(next
slide)
and
subsequent
reductions

 as
Lake
Nasser’s
level
fell
 ...
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This document was uploaded on 10/27/2011 for the course GEO 262 at Rutgers.

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