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Orthophotos combine the image characteristics of a photograph with the geometric qualities of a map. The primary digital orthophotoquad (DOQ) is a 1-meter ground resolution, quarter-quadrangle (3.75-minutes of latitude by 3.75-minutes of longitude) image cast on the Universal Transverse Mercator Projection (UTM) on the North American Datum of 1983 (NAD83).The geographic extent of the DOQ is equivalent to a quarter-quad plus The overedge ranges a minimum of 50 meters to a maximum of 300 meters beyond the extremes of the primary and secondary corner points. The overedge is included to facilitate tonal matching for mosaicking and for the placement of the NAD83 and secondary datum corner ticks. The normal orientation...
Slide description and index card: Aerial view of Mount St. Helens southwest flank: "Two-Fingers" lava flow left of center, "Mitten" lava flow right of center. Skamania County, Washington. September 28, 1979. (Part of plane visible in upper left corner).
Aerial view of Simpson Desert. Pans holding both salt (right) and water (left) but few dunes; near Oodnadatta. Australia. 1976.
(Roll 2, Frame 9). Aerial view of south end of Fairview Peak looking southwest. Churchill County, Nevada. Sept 19, 1974.
Vertical aerial view of Venus Lake before the eruption. Photo courtesy Washington Game Department. Skamania County, Washington.n.d. Portion is figure 9 in U.S. Geological Survey. Circular 850-G. 1981.
Categories: Image;
Tags: Aerial,
Washington Game Department Dion N.P. Collection Mount St. Helens msh1980,
photo print
Effects of Hurricane Katrina in Mississippi. Aerial view of the ruins of the Grand Casino barges. Note the barges have been moved from water to inland across north side of Highway 90. Biloxi, Mississippi. September 11, 2005. (Effects of Hurricane Katrina in Mississippi images have been donated to the Photographic Library by USGS employees, FEMA contractors, the National Guard, the U.S. Military, local police and state patrols, and public citizens.)
Unzen Volcano, Japan, 1991. Aerial view of Mayuyama dome and Shimabara city. In foreground is path of pyroclastic flows and mudflow of June 30,1991 in Mizunashi drainage. Photo by: T. Kobayashi, Univ. Kagoshima. Japan, Nov. 5, 1991.
Index card: Oblique aerial view showing Mount St. Helens and South Fork Toutle River mudflow after the May 25, 1980 ash eruption. Note the large gully in the upper center of the view. Skamania and Cowlitz Counties, Washington. 1980.
Aerial view taken from about 1500 feet from point over marginal escarpment due north of Stevens Village southward across the Yukon Flats toward Yukon River. Yukon Flats district, Yukon region, Alaska. August 7, 1949.
Mount Pinatubo, Philippines. Aerial view of Abacan river channel as it passes through Angeles city near Clark Air Base. Mudflow associated with June 15 eruption casued collapse of main bridges across the Abacan river. Note makeshift bridges for pedestrians. USGS photo by T. J. Casadevall. August 12, 1991.
Categories: Image;
Tags: Casadevall, T.J. Collection,
Mount Pinatubo volcano,
Philippines,
Photographers,
Volcanoes,
These slides of the July 22, 1980 eruption of Mount St. Helens. Jim Vallance was in a U.S. Forest Service fixed wing aircraft and Mike Doukas, Harry Glicken, and Rick Hoblitt were in a U.S. Geological Survey helicopter. There were three major eruptive pulses on July 22, 1980. They begin at 17:14, 18:30 and 19:02 PDT. 19:09 third eruptive pulse, view from west. Skamania County, Washington. (Photo by H. Glicken, USGS)
Categories: Image;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: Glicken, H.X. Collection,
Mount St. Helens Collection,
Photographers,
Skamania County, Washington,
Volcanoes,
Album caption: Oblique aerial view from north looking across landscape into crater; steaming dome in center. Spirit Lake at left. Skamania County, Washington. May 24, 1982. (Photo 82-S1-145 by Robert Krimmel) Index card unavailable.
Categories: Image;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: Mount St. Helens Collection,
Photographers,
Skamania County, Washington,
Volcanoes,
aerial,
Index card (47ct-52ct, 54ct-55ct): Oblique aerial views looking down at dome and adjacent areas of crater floor. Skamania County, Washington. 1980.
Categories: Image;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: Friedman, J.D. Collection,
Mount St. Helens Collection,
Photographers,
Skamania County, Washington,
Volcanoes,
Aerial view of Toutle River debris flow surface. Mount St. Helens, Cowlitz County, Washington. 1980.
Index card: Aerial view of Toutle River debris flow surface. Cowlitz County, Washington. August 10, 1980.
Categories: Image;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: Cowlitz County, Washington,
Embree, G.F. Collection,
Mount St. Helens Collection,
Photographers,
Volcanoes,
Typed caption accompanying slide: Stereopair with slide no. 64 taken at 19:11. The plume encounters an atmospheric boundary and is planed off into an anvil shape at about 60,000 feet. Skamania County, Washington. (Photo by J. Vallance) Note: Slide numbers 43 - 50 were taken at 19:01 and show the pyroclastic flow as it advances northward. Skamania County, Washington. July 22, 1980. Slide number 51 was taken at 19:02. Slide numbers 52 - 55 were taken at 19:03. Slide numbers 56 - 57 were taken at 19:04. Slide numbers 58 and 59 were taken at 19:04 and 19:05. Slide numbers 60 - 62 are views of the eruption and were taken at 19:06. Slide no. 52, msh_vjw00052_ct, is highlighted in this photo record. Slide no....
Categories: Image;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: Mount St. Helens Collection,
Photographers,
Skamania County, Washington,
Vallance, J.W. Collection,
Volcanoes,
Slide description and index card: Aerial view of Mount St. Helens summit region, with Goat Rocks dome near center. Skamania County, Washington. September 28, 1979.
Categories: Image;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: Hoblitt, R.P. Collection,
MSH-Hoblitt, R.P. Collection,
Mount St. Helens Collection,
Photographers,
Skamania County, Washington,
Index card: Aerial view of part of Castle Creek Lake. Cowlitz County, Washington. June 25, 1980.
Categories: Image;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: Casadevall, T.J. Collection,
Cowlitz County, Washington,
Mount St. Helens Collection,
Photographers,
Volcanoes,
Index card: Aerial view southeast of approximately upper half of Mount St. Helens; lower half and surrounding countryside obscured by cloud cover. View shows bulge, summit crater, ashfall on slopes. Skamania County, Washington. (End of plane wing visible in lower left).
Categories: Image;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: Christiansen, R.L. Collection,
Mount St. Helens Collection,
Photographers,
Skamania County, Washington,
Volcanoes,
Slide description: Nearer aerial view of summit of Mount St. Helens, looking toward the northeastward of the two craters; septum still exists between the two. Skamania County, Washington. April 2, 1980. No index card available.
Categories: Image;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: Hoblitt, R.P. Collection,
MSH-Hoblitt, R.P. Collection,
Mount St. Helens Collection,
Photographers,
Skamania County, Washington,
Slide description and index card: Aerial view of Mount St. Helens, looking south over "Floating Island" lava flow. Skamania County, Washington. September 28, 1979.
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