Coastal & Marine Geology InfoBank

Home FACS Activities Atlas Geology School Related Sites More

USGS CMG InfoBank: Precise Navigation

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: 16:02 - 16:59 (00:57)
Source: Annenberg/CPB Resources - Earth Revealed - 4. The Sea Floor
Keywords: "global positioning system", GPS, satellite, "Michael Hamer", "Kaye Kinoshita", "James V. Gardner"

Our transcription: To accurately map an area of ocean floor using GLORIA technology requires very precise navigation.
The longitudes and latitudes of specific sites are determined with the assistance of earth orbiting satellites in communication with the research vessel.
This technique is termed "GPS," the "Global Positioning System."
Navigation is the most important of all the data we collect.
If we can't locate the image or a bit of the image exactly where it is on the surface of the sea floor on the map, then we haven't really done our job.
Someone must be able to go back after identifying something on a GLORIA mosaic, go back to that latitude and longitude and find that image piece on the sea floor, so we use global positioning.
We use GPS navigation, and it is the one thing that we pay more attention to on board the ship and after the cruise than anything else.
It's the cornerstone for everything we do.

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)