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Wrong James Gardner?

James E. Gardner

Chief of Pacific Seafloor Mapping

U.S. Geological Survey

HQ Phone:  (703) 648-4000


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U.S. Geological Survey

12201 Sunrise Valley Drive

Reston, Virginia,20192

United States

Company Description

The USGS lunar calibration program provides radiometric calibration and sensor stability monitoring for space-based remote sensing instruments using the Moon as a reference source. This is a unique on-orbit calibration technique for solar reflectance wavelengt...more

Background Information

Employment History

Graduate Researcher

University of Texas at Austin

Senior Geologist

Paramount Resources Ltd.

Geologist: Sedimentologist and Stratigrapher

BP p.l.c

REU Intern

Cornell University @ Arecibo Observatory

Associate Editor

American Geophysical Union

Chief Scientist and Head


Assistant Professor of Volcanology

University of Alaska

Senior Geologist

Beringer Energy Inc

Research Associate

Rochester Institute of Technology



Committee Member


Committee Member

School of Geosciences

Honorary Associate

The University of Sydney

Honorary Associate



Southern Methodist University



Washington University


University of Rhode Island Graduate School of Oceanography

Web References(66 Total References)

Andrew Safer - Creative Content Solutions [cached]

Marine Geologist Jim Gardner, Chief of Pacific Seafloor Mapping for the US Geological Survey in Menlo Park, California, uses the Fledermaus to do geological interpretations onscreen.
"It's an intuitive view of massive amounts of data," he exclaims. "I can smoothly progress right through the data sets looking at the highest resolution, and I can process it on screen, and interrogate. What's the acoustical backscatter, what are the volume calculations? Identifying sediment waves of a certain height and length in a zone of low backscatter, for example, might point to a 90 per cent probability of finding mud. Other metrics might point to sand of a particular grain size. Gardner points out there is "a great need" to identify benthic habitats on the seafloor. After a landslide caved in the western wall at Lake Tahoe, using the Fledermaus, Gardner was able to demonstrate that the site had collapsed. What made the difference was the ability to measure distances, heights and volumes. "Without being able to measure," says Gardner, "it would have been much more difficult." In the pre-Fledermaus days, he would have created mosaic images on a computer, then lay them on a table, put a piece of tracing paper over it, trace the outlines of the features and then digitized the outline.

The seamount was discovered in August when James Gardner, research professor in the UNH-NOAA Center for Coastal and Ocean Mapping/Joint Hydrographic Center, was leading a mapping mission aimed at helping delineate the outer limits of the U.S. continental shelf.
Working aboard the R/V Kilo Moana, an oceanographic research ship owned by the U.S. Navy and operated by the University of Hawaii, Gardner and his team were using multibeam echosounder technology to create detailed images of the seafloor when, late at night, the seamount appeared "out of the blue. The team was able to map the conical seamount in its entirety. The yet-unnamed seamount, located about 300 kilometers southeast of the uninhabited Jarvis Island, lies in one of the least explored areas of the central Pacific Ocean. Because of that, Gardner was not particularly surprised by the discovery. "These seamounts are very common, but we don't know about them because most of the places that we go out and map have never been mapped before," he says. Since only low-resolution satellite data exists for most of the Earth's seafloor, many seamounts of this size are not resolved in the satellite data but advanced multibeam echosounder missions like this one can resolve them. "Satellites just can't see these features and we can," Gardner adds. "It's probably 100 million years old," Gardner says, "and it might have something in it we may be interested in 100 years from now." A world-renowned marine geologist, Gardner leads CCOM/JHC's mapping efforts in support of U.S. claims to an extended continental shelf under the United Nations Law of the Sea Convention. He has participated in mapping cruises in the Atlantic, eastern and western Pacific, Gulf of Mexico, Gulf of Alaska and Beaufort Sea and published more than 200 scientific papers. Before joining UNH in 2003, he led the U.S. Geological Survey's Pacific Mapping Group.

Committee on Tsunami Community Research [cached]

Jim Gardner, US Geological Survey

SEA BEAM News [cached]

"We know what the surface of the moon is better than we know what the surface of the sea floor is," said James Gardner, an oceanographer with the U.S. Geological Survey who flew up from Menlo Park, Calif., on short notice to take part in the survey.The Puyallup delta of Tacoma is one of three major port sites, including Olympia and later this month, Seattle, being studied not only for immediate evidence of submerged damage to port structures, but more important to begin making a record for future use.The ship won't be peeking at the whole Sound however, a process that would take months."We're not sure we will learn anything about the earthquake itself," Gardner said yesterday, from a room just off the ship's bridge ringed by computer screens yesterday."The value of doing this is that now we will have a base-line snapshot of what the front of the delta looks like ... so that after the next earthquake -- and there will be a next earthquake -- we can look at the chart and say, 'This is what happened."'The 231-foot long, 34-year-old Rainier was assigned the duty only a week ago, diverted from a course leading eventually to Alaska when its parent, the National Oceanic and Atmospheric Administration, ordered the quick turnaround at the behest of the USGS.The urgency was caused by a need recognized by the USGS to get a picture of what the area's submarine terrain looked like shortly after the quake, since Puget Sound's powerful tides can quickly erode and alter the evidence the earthquake might have left behind.Gardner expects to take much of the data gathered in the next two weeks back to Menlo Park to be studied with a team of submarine experts.Gardner said there is no reason to suspect there were any submarine fault lines after the quake Feb. 28."There were no tsunamis," he said, which would have occurred if a fault rose or dropped underwater.Gardner and Herlihy said the high-tech findings yield renewed admiration for the skills and tenacity of early explorers and surveyors.

Committee on Tsunami Community Research [cached]

Jim Gardner , US Geological Survey

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