Coastal & Marine Geology InfoBank

Home FACS Activities Atlas Geology School Related Sites More

USGS CMG InfoBank: Mapping Sea Floor Features

Skip navigational links
Dictionaries: Our Mapping Systems   The USGS and Science Education   USGS Fact Sheets   Topics   Keywords   Data Dictionary   Metadata Dictionary   Computer Terminology   Digital Formats  
InfoBank Terms: Activity ID   activity overview   crew   digital data   formal metadata   lines   metadata   NGDC   port stops   project/theme   region   ship   stations   time   virtual globe   year  
Data Types: bathymetry   biological   geochemical   gravity   ground penetrating radar   imaging   LIDAR   logs   magnetics   metering equipment   navigation   samples   seismic   total station   definitions disclaimer  
Data Formats: ARC coverage   E00   FGDC metadata   gridded/image   imaging   material   scattered/swath   Shapefile   vector/polygon  
Comment: 15:16 - 16:02 (00:46)
Source: Annenberg/CPB Resources - Earth Revealed - 4. The Sea Floor
Keywords: seamount, canyon, channel, GLORIA, "James V. Gardner"

Our transcription: GLORIA itself is towed behind the ship, trailing 200 meters away, some 50 meters beneath the surface.
GLORIA changed our impression of the sea floor by at one time letting us view the entire sea floor, rather than viewing small patches beneath the ship, many, many tracks going every which way, and trying to interpolate between those tracks.
Now with GLORIA we can see the entire surface.
We can see where the seamounts are.
We can see exactly where the channels are, where the meanders are.
We can see where the canyons are, the gullies.
We know now the locations of all these features down to very small scale features.
In that respect, GLORIA was a complete revelation.

Geology School Keywords
Skip footer navigational links

Coastal and Marine Science Centers:  Pacific   St. Petersburg   Woods Hole  
InfoBank   Coastal and Marine Geology Program   Geologic Information   Ask-A-Geologist   USGS Disclaimer  

Accessibility FOIA Privacy Policies and Notices

Take Pride in America logo logo U.S. Department of the Interior | U.S. Geological Survey
Page Contact Information: InfoBank staff
Page Last Modified: Thu Oct 31 04:25:33 PDT 2013  (chd)