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Results 1
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6 of
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To
commemorate
the
200th
anniversary
of
the
Lewis
and
Clark
Expedition
and
the
125th
anniversary
of
the
United
States
Geological
Survey
(USGS),
the
USGS
National
Center
for
Earth
Resources
Observation
and
Science
(EROS)
has
assembled
a
collection
of
satellite
images
that
provides
a
contemporary
view
of
the
route
that
Lewis
and
Clark
took
from
St.
Louis,
Missouri,
to
the
Pacific
Coast.
The
twenty-two
...
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Choosing & Using this resource...
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This
interactive
viewer
provides
access
to
satellite
imagery
for
virtually
any
point
on
the
Earth.
Users
can
select
a
satellite
and
sensor
and
either
type
in
latitude
and
longitude
or
click
on
a
point
on
the
index
map.
The
viewer
will
show
a
mosaic
of
the
most
recent
cloud-free
satellite
browse
images
around
the
point
selected.
It
will
appear
in
a
new
window
along
with
some
metadata,
including
path,
...
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This
is
an
e-book
of
before-and-after
Landsat
images
(1972-present),
showing
recent
environmental
events
and
introducing
the
concept
of
remote
sensing.
Some
changes
are
due
to
natural
causes
and
some
are
due
to
human
causes.
Image
topics
include
agriculture,
cities,
deserts,
disasters,
and
geology.
Each
set
of
images
includes
a
detailed
description,
photographs
and
maps,
a
list
of
references,
and
...
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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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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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This
site
is
the
homepage
of
the
United
States
Geological
Survey's
(USGS)
Coastal
and
Marine
Geology
Program.
Materials
available
here
include
links
to
news
articles
and
publications,
topics
of
study,
and
regions
of
study.
Search
choices
include
topic,
region
or
content
type
(research
project,
educational
material,
datasets,
etc.).
Study
topics
are
grouped
by
coastal
issues,
marine/
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Results 1
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6 of
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