EM 1110-2-2907
1 October 2003
d. There are several commercial companies that do GPR surveys, such as Blackhawk
Geometrics and Geosphere Inc., found on the web at http://www.blackhawkgeo.com, and
3-16 Match to the Corps 9--Civil Works Business Practice Areas. Match to
the Corps business practice areas presupposes that everything about remote sensing for a
particular ground or water parameter is known or works. However, this is not the case.
Mapping for the amount of visible detail for a particular business area can be and has
been readily listed in the National Imagery Interpretability Rating Scale (NIIRS). An ap-
proximate match between NIIRS level and GSD is given in the following.
a. Navigation Needs--lock and dam modification and construction, harbor facilities
construction, channel dredging.
(1) How can remote sensing help in the maintenance, dredging, and planning for
new construction?
(2) Remote sensing match:
Hydrographic surveys creating maps of underwater depth and obstructions.
Maps of original land and water area to be converted.
Elevation profiles of the areas.
Maps of the surrounding area to meet requirement of no net loss of wetlands.
See Paragraph 3-3.
b. Flood Damage Reduction Needs--levee, dam, jetty, and seawall construction and
beach sand re-nourishment projects, installation of flood warning systems.
(1) How can remote sensing help in planning for construction, for beach sand re-
nourishment projects, and for the installation of flood warning systems?
(2) Remote sensing match:
Maps of construction and surrounding areas.
Elevation profiles of the areas.
Beach maps and elevation profiles and near shore bathymetry.
Levee top elevations for flood warning systems.
See Paragraph 3-3.
wildlife habitat, water quality monitoring, wetland creation, radioactive and abandoned
mine lands (AML) cleanup.
(1) How can remote sensing help in planning for ecosystem restorations, monitor-
ing forest and wildlife habitat and water quality, and for wetland creation and AML
cleanup?
3-15
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