Geophysical Intelligence
(US Army Field Manual 2-0) defines geophysical intelligence as a branch of MASINT. "it involves phenomena transmitted through the earth (ground, water, atmosphere) and manmade structures including emitted or reflected sounds, pressure waves, vibrations, and magnetic field or ionosphere disturbances."
Read more about this topic: National Technical Means Of Verification
Famous quotes containing the word intelligence:
“Napoleon has not been conquered by men. He was greater than any of us. God punished him because he relied solely on his own intelligence until that incredible instrument was so strained that it broke.”
—Jean Baptiste Bernadotte (1763–1844)