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This
portal
provides
information
on
how
we
use
water
on
an
everyday
basis.
Users
can
choose
from
some
general
water-use
topics
on
the
left
side
of
the
graphic,
or
from
the
categories
of
water
use
on
the
right
side.
A
text
menu
of
the
topics
is
provided
below
the
graphic.
Topics
include
groundwater,
surface
water,
domestic
versus
commercial
consumption,
irrigation
and
livestock,
and
industrial
uses.
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Choosing & Using this resource...
Educational standards associated with this resource:
National Science Education Standards (NSES): Read
Related resources and collections
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This four-page fact sheet provides a brief summary of the analysis of land use in urban environments. Topics include the rapid growth in urban populations, some of the methods used to analyze land use change (mapping, databases, time series documents), and some of the concerns and possible consequences created by the rapid shift of human populations to urban centers.
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Choosing & Using this resource...
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This preliminary assessment of urban growth in the Central Valley of California is intended to illustrate the dramatic changes to the Central Valley landscape over the past 100 years. Data products include an urban growth timeline for the years 1900 to 1996, an animated version of the same timeline, and graphs showing the increase in population and built-up land for the same period.
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Choosing & Using this resource...
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This
on-line
publication
illustrates
the
spatial
history
of
urban
growth
and
corresponding
land
use
change
in
sixteen
areas
around
the
United
States.
It
features
pairs
of
images
of
selected
urban
regions
from
across
the
nation
which
are
intended
to
show
the
transformation
that
these
areas
have
undergone
over
two
decades,
specifically
increases
in
the
extent
of
urban
land.
Each
pair
is
composed
of
...
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Choosing & Using this resource...
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This
report,
part
of
a
series
that
analyzes
population
and
housing
data
collected
from
the
census
of
2000,
highlights
population
size
and
distribution
changes
between
1990
and
2000
in
regions,
states,
counties,
and
large
cities.
Data,
maps,
and
discussion
are
used
to
examine
the
size
of
the
population
increase,
which
states
and
regions
experienced
the
largest
growth,
where
the
largest
proportion
of
...
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Choosing & Using this resource...
Related resources and collections
This resource is included in the following collections:
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These
maps
can
be
used
as
reference
materials
or
as
base
maps
for
the
addition
of
content
as
needed.
There
are
a
variety
of
maps
of
North
America,
the
United
States,
and
of
each
state.
They
are
available
in
a
number
of
color
and
labeling
schemes:
colored
or
uncolored;
unlabeled
or
labeled
with
states,
capitals,
rivers,
and
lakes.
State
maps
are
listed
alphabetically,
and
are
available
with
county
...
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Choosing & Using this resource...
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This resource is part of :
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This
database
contains
an
extensive
selection
of
digital
data
and
imagery
of
the
San
Francisco
Bay
Area.
Products
include
Digital
Elevation
Models
(DEMs),
Digital
Line
Graphs
(DLGs),
Digital
Raster
Graphics
(DRGs),
Digital
Orthophotos
(DOQs),
and
historical
maps.
Most
of
these
items
are
available
at
a
scale
of
1:24,000;
other
scales
are
available
for
some.
Metadata
and
links
to
documents
outlining
...
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Choosing & Using this resource...
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This resource is included in the following collections:
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This
site
contains
maps
published
in
the
1970
edition
of
the
National
Atlas
of
the
United
States
of
America.
The
maps
are
sorted
into
three
categories:
maps
available
online,
reprints
and
updates
of
thematic
maps,
and
reprints
and
updates
of
reference
maps.
Although
the
1970
edition
of
the
National
Atlas
of
the
United
States
of
America,
published
by
the
United
States
Geological
Survey
(USGS),
is
out
...
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Choosing & Using this resource...
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This resource is part of :
This resource is included in the following collections:
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This catalog features samples of popular United States Geological Survey (USGS) maps that are frequently used by educators. Users can click on any of twelve themes (topography, geology, culture and history, etc.) to browse a selection of maps under that theme. Downloadable, printable versions are available for most maps; hardcopies may be purchased. Ordering information is provided.
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Choosing & Using this resource...
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This resource is included in the following collections:
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This collection of historic topographic maps goes back to the late 19th century. Comparison of maps of the same area from different times allows users to observe changes in land use over time. The maps can be searched by using list of available quadrangles, by clicking on an interactive index map, or by a word search of feature names.
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Choosing & Using this resource...
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This resource is included in the following collections:
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