Ground_surveying_in_Surprise_Valley,_California.jpg


Summary

Description
English: Ground surveying in Surprise Valley, Cedarville, California, United States. U.S. Geological Survey researcher Noah Athens secures a magnetometer pack (Geometrics G-858) onto Stanford graduate student Melissa Pandika, who blogged the team’s first year’s research for USGS in Surprise Valley, Modoc County, Calif., in 2012. Traditionally, magnetometric surveying has been done on foot or by all-terrain vehicle, and the Surprise Valley team’s aerial data is still ground-truthed this way. However, human-powered ground surveying methods are time-consuming and less precise than aerial surveys, and cannot be performed on dangerous or inaccessible ground.
Date
Source http://gallery.usgs.gov/photos/09_03_2013_ptk7NBy44H_09_03_2013_1#.VChZdWddUtB
Author Jonathan Glen, USGS

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This work is in the public domain in the United States because it is a work prepared by an officer or employee of the United States Government as part of that person’s official duties under the terms of Title 17, Chapter 1, Section 105 of the US Code . Note : This only applies to original works of the Federal Government and not to the work of any individual U.S. state , territory , commonwealth, county, municipality, or any other subdivision. This template also does not apply to postage stamp designs published by the United States Postal Service since 1978 . (See § 313.6(C)(1) of Compendium of U.S. Copyright Office Practices). It also does not apply to certain US coins; see The US Mint Terms of Use .

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28 September 2014