Results of a high-resolution airborne TEM system demonstration for unexploded ordnance detection

Autor:	William E. Doll, James L. C. Lee, T. Jeffrey Gamey, Jacob R. Sheehan, Les P. Beard, Raye Lahti, J. Scott Holladay, Andri Hanson, Jeannemarie Norton
Rok vydání:	2010
Předmět:	Unexploded ordnance Geophysics Geochemistry and Petrology Magnetometer law High resolution Mineralogy Geology law.invention Remote sensing
Zdroj:	GEOPHYSICS. 75:B211-B220
ISSN:	1942-2156 0016-8033
Popis:	Airborne geophysical sensor systems using boom-mounted configurations now play an important role in characterizing ordnance-contaminated defense sites. Most of the systems developed to date have been magnetometer systems. These have proven ineffective at sites where basalt or other magnetic geologic units or soils have caused unacceptable noise in the data. Electromagnetic (EM) systems have been developed as an alternative to magnetometer systems for such sites. Recent evaluation of New Mexico field results from the new TEM-8 time-domain EM system has shown successful detection of emplaced blind-seeded ordnance items. Overall, 109 of 110 items were detected, some as small as [Formula: see text] mortars at an area with moderately magnetic geology. The TEM-8 system was also effective in mapping ordnance at a bombing target with severe geologic interference due to basalt, where a previous airborne magnetometer survey proved ineffective. Data and performance metrics for both survey areas are presented and evaluated.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::14cc69535c8a46c732537ad57dde4f36 https://doi.org/10.1190/1.3505817 Zobrazit plný text záznamu