| Abstract: | Integration of geophysical data obtained at various scales can bridge the gap between localized data from boreholes and site-wide data from regional survey profiles. Specific approaches to such analysis include: 1) comparing geophysical measurements in boreholes with the same measurement made from the surface; 2) regressing geophysical data obtained in boreholes with water-sample data from screened intervals; 3) using multiple, physically independent measurements in boreholes to develop multivariate response models for surface geophysical surveys; 4) defining subsurface cell geometry for most effective survey inversion methods; and 5) making geophysical measurements in boreholes to serve as independent verification of geophysical interpretations. Integrated analysis of surface electromagnetic surveys and borehole geophysical logs at a study site in south Florida indicates that salinity of water in the surficial aquifers is controlled by a simple wedge of seawater intrusion along the coast and by a complex pattern of upward brine seepage from deeper aquifers throughout the study area. This interpretation was verified by drilling three additional test boreholes in carefully selected locations. |
| Genre: | Conference Paper |
| ProdID: | 70023989 |
| Citation Author: | Paillet, F. L. |
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| Citation Editor: | Singhroy V.H.Hansen D.T.Pierce R,R,Johnson A.I. |
| Citation End Page: | 91 |
| Citation Issue: | 1420 |
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| Citation Language: | English |
| Citation Larger Work Title: | ASTM Special Technical Publication |
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| Citation Number Of Pages: | 15 |
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| Citation Search Results Text: | Spatial scale analysis in geophysics - Integrating surface and borehole geophysics in groundwater studies; 2002; Conference Paper; ASTM Special Technical Publication; Paillet, F. L. |
| Citation Start Page: | 77 |
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| Citation Year: | 2002 |
| Type: | citation/reference |
| Text: | Spatial scale analysis in geophysics - Integrating surface and borehole geophysics in groundwater studies; 2002; Conference Paper; ASTM Special Technical Publication; Paillet, F. L. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg |
| Date Other: | Tue, 1 Jan 2002 00:00 -0600 |
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