Please use this identifier to cite or link to this item:
http://hdl.handle.net/2122/5671
Authors: | Embriaco, D.* Carmisciano, C.* Caratori Tontini, F.* Stefanelli, P.* Cocchi, L.* Locritani, M.* De Marte, M.* |
Title: | Environmental magneto-gradiometric marine survey in a highly anthropic noisy area | Journal: | Annals of Geophysics | Series/Report no.: | 5/52 (2009) | Publisher: | INGV | Issue Date: | Oct-2009 | Keywords: | environmental reclamation anthropic noise magneto-gradiometric survey |
Subject Classification: | 04. Solid Earth::04.01. Earth Interior::04.01.99. General or miscellaneous 04. Solid Earth::04.05. Geomagnetism::04.05.99. General or miscellaneous 04. Solid Earth::04.05. Geomagnetism::04.05.09. Environmental magnetism |
Abstract: | We describe a magneto-gradiometric survey performed in the «Mar Piccolo» of Taranto, Italy in May 2005 for environmental purposes. This region, which is a noisy harbour environment, provides a challenging test for magnetic methods. To reduce spurious noise signals, with both temporal and spatial origins, we used two Geometrics G880 model caesium magnetometers towed in a transverse gradient configuration. We show how, in shallow waters, this gradiometric configuration allows us to distinguish anomalies due to small metallic bodies near the seabed from the induced noise due to the anthropic contribution and geomagnetic field variations. A direct visual inspection confirmed that the peculiarities highlighted in the gradient anomaly map were due to abandoned metallic objects found on the seabed. |
Appears in Collections: | Article published / in press |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
Embriaco_HiRes.pdf | 21.56 MB | Adobe PDF | View/Open |
Page view(s) 50
526
checked on Apr 24, 2024
Download(s) 50
183
checked on Apr 24, 2024