Constructing three dimensional model of Bowers Bank. C&GS marine geologist at work. Photo #1 of sequence

Constructing three dimensional model of Bowers Bank. C&GS marine geologist at work. Photo #2 of sequence

Constructing three dimensional model of Bowers Bank. C&GS marine geologist at work. Photo #3 of sequence

Trincomalee Canyon, Sri Lanka. Surveyed by PIONEER. Survey made during International Indian Ocean Expedition

Monterey Bay Case Study - Photo #1. First recorded soundings in Monterey Bay. Surveyed by Don Miguel de Costanso - only 17 soundings

Monterey Bay Case Study - Photo #2. Reconnaissance chart of California coast. Surveyed in 1852 by Captain James Alden on the C&GS Ship ACTIVE

Monterey Bay Case Study - Photo #3. Detail of Monterey Bay from 1852 C&GS survey. Note 0/120 in center of bay. Indicates that bottom was not reached with 120 fathom leadline

Monterey Bay Case Study - Photo #4. C&GS chart of Monterey harbor published in 1852

Monterey Bay Case Study - Photo #5. 1897 contoured map of Monterey "Submerged Valley". From George Davidson published paper in Proc. of Calif. Acad. of Sciences. Monterey Canyon was first noted in 1857 by James Alden of C&GS Ship ACTIVE . Alden termed the canyon a "submarine gulch"

Monterey Bay Case Study - Photo #6. Increasing detail of lower canyon including huge meander. From "Submarine Canyons" by Shepard and Dill

Monterey Bay Case Study - Photo #7. Profiles showing comparison of Monterey Canyon and Grand Canyon. From "Submarine Canyons" by Shepard and Dill

Monterey Bay Case Study - Photo #8. Upper Monterey Canyon as developed by multi-beam sounding systems. Surveyed by NOAA Ships DAVIDSON, DISCOVERER, and SURVEYOR. This was the smooth sheet for the first published NOAA multi-beam map

Monterey Bay Case Study - Photo #9. 3-D image of 9,000 square nautical miles. Shows Monterey Canyon, continental slope, Pioneer and Guide Seamounts, etc. This image was constructed from over 5,000,000 soundings

Mapping the Ocean Floor. Joint NOAA-USGS Exclusive Economic Zone Project Office. NOAA responsible for multi-beam bathymetric mapping program

3-D image from NOAA Exclusive Economic Zone Mapping Project. Norfolk Canyon off Chesapeake Bay. Image is 30 nautical miles by approximately 50 nautical miles

3-D image from NOAA Exclusive Economic Zone Mapping Project. Sigsbee Escarpment and bizarre topography of Texas-Louisiana Slope. Image shows approximately 9,000 square nautical miles

3-D image NOAA Exclusive Economic Zone Mapping Project. Mitchell Basin image showing small portion of Sigsbee Escarpment. Image is 30 nautical miles by approximately 50 nautical miles

Map from NOAA Exclusive Economic Zone Mapping Project. Mitchell Basin map showing small portion of Sigsbee Escarpment. Image is 30 nautical miles by approximately 50 nautical miles

Map from NOAA Exclusive Economic Zone Mapping Project. Small portion of Sigsbee Escarpment north of Green Knoll

3-D image from NOAA Exclusive Economic Zone Mapping Project. Mitchell Dome map - diapiric structures discovered by NOAA EEZ mapping. Southeast of Mississippi Passes

3-D image from NOAA Exclusive Economic Zone Mapping Project. Mitchell Dome and surrounding diapiric features. Image is 30 nautical miles by approximately 50 nautical miles

3-D image from NOAA Exclusive Economic Zone Mapping Project. Detail of NE corner of Mitchell Dome map

3-D image from NOAA Exclusive Economic Zone Mapping Project. Mitchell Dome in center of image. Very similar to Mickey Mouse appearance. Sometimes referred to as "Mickey Mouse Domes"

3-D image from NOAA Exclusive Economic Zone Mapping Project. Mitchell Dome in center of image. Very similar to Mickey Mouse appearance. Sometimes referred to as "Mickey Mouse Domes"

3-D image from NOAA Exclusive Economic Zone Mapping Project. Chandeleur Valley image - valley is in upper left of image. Image is 30 nautical miles by approximately 50 nautical miles

3-D image from NOAA Exclusive Economic Zone Mapping Project. Basins on the Texas-Louisiana Slope

3-D image from NOAA Exclusive Economic Zone Mapping Project. Basins on the Texas-Louisiana Slope

3-D image from NOAA Exclusive Economic Zone Mapping Project. Davidson Seamount and continental slope. Image is 30 nautical miles by approximately 50 nautical miles. Looking to northeast

3-D image from NOAA Exclusive Economic Zone Mapping Project. Davidson Seamount looking towards Pacific basin. Image is 30 nautical miles by approximately 50 nautical miles. Looking to northwest

3-D image from NOAA Exclusive Economic Zone Mapping Project. Upper reaches of Monterey Canyon

3-D image from NOAA Exclusive Economic Zone Mapping Project. Monterey Canyon floor south of Santa Cruz

3-D image from NOAA Exclusive Economic Zone Mapping Project. Monterey Canyon floor south of Santa Cruz

3-D image from NOAA Exclusive Economic Zone Mapping Project. Shepard Meander of Monterey Canyon looking to southwest

3-D image from NOAA Exclusive Economic Zone Mapping Project. Shepard Meander of Monterey Canyon looking to northeast

3-D image from NOAA Exclusive Economic Zone Mapping Project. Shepard Meander of Monterey Canyon looking to northeast. Note dune structures south (to right) of meander

3-D image from NOAA Exclusive Economic Zone Mapping Project. Guide Seamount looking to northeast

3-D image from NOAA Exclusive Economic Zone Mapping Project. Guide Seamount looking to northeast

3-D image from NOAA Exclusive Economic Zone Mapping Project. Guide Seamount looking to northwest

3-D image from NOAA Exclusive Economic Zone Mapping Project. Pioneer Seamount and Pioneer Canyon

3-D image from NOAA Exclusive Economic Zone Mapping Project. Ridge to south of Pioneer Seamount. Turbidity currents debouch from Pioneer Canyon, strike ridge, and are deflected . Huge dune structures are formed which extend many miles to the south.

3-D image from NOAA Exclusive Economic Zone Mapping Project. Ridge to south of Pioneer Seamount. Turbidity currents debouch from Pioneer Canyon, strike ridge, and are deflected . Huge dune structures are formed which extend many miles to the south

3-D image from NOAA Exclusive Economic Zone Mapping Project. Ridge to south of Pioneer Seamount. Turbidity currents debouch from Pioneer Canyon, strike ridge, and are deflected . Huge dune structures are formed which extend many miles to the south

3-D image from NOAA Exclusive Economic Zone Mapping Project. Fault block structures on the Oregon continental slope. Image is 30 nautical miles by approximately 50 nautical miles

3-D image from NOAA Exclusive Economic Zone Mapping Project. Fault block structures on the Oregon continental slope. Image is 30 nautical miles by approximately 50 nautical miles

3-D image from NOAA Exclusive Economic Zone Mapping Project. Heceta Escarpment - Fault block structures on the Oregon continental slope. Image is 30 nautical miles by approximately 50 nautical miles

3-D image from NOAA Exclusive Economic Zone Mapping Project. Astoria Channel - to the west of Oregon continental slope. Note small ridge-like structures running left to right in image. These are artifacts of sounding system and common on flat bottom. These artifacts are parallel to survey ship tracks

3-D image from NOAA Exclusive Economic Zone Mapping Project. Looking to north along Heceta Escarpment. See image "theb3858.htm" for comparison

3-D image from NOAA Exclusive Economic Zone Mapping Project. Blowup of area right at base of Oregon continental slope. Note oblique lineations at base of continental slope. These are real features as sounding system artifacts are farther to west (left)

3-D image from NOAA Exclusive Economic Zone Mapping Project. Seamounts south of Hawaiian Islands. Image is 30 nautical miles by approximately 50 nautical miles. View #1 of Cook Seamount area

3-D image from NOAA Exclusive Economic Zone Mapping Project. Seamounts south of Hawaiian Islands. Image is 30 nautical miles by approximately 50 nautical miles. View #2 of Cook Seamount area