Sentences with phrase «airborne survey showed»
By marking out a surveyed grid (with altitudes) and using a sensitive magnetometer, the natural field was mapped, usually at an area where airborne survey showed a discrete anomaly.
https://wattsupwiththat.com/
13 April 2017... Mashable (Quoted): Arctic ice in retreat: NASA's airborne survey shows how global warming is transforming the Arctic
Not exact matches
The team combined field surveys with airborne mapping and high - resolution satellite monitoring to show that the geographic extent of mining has increased 400 % from 1999 to 2012 and that the average annual rate of forest loss has tripled since the Great Recession of 2008.