Zobrazeno 1 - 10
of 16
pro vyhledávání: '"John Sogade"'
Autor:
Weiqun Shi, William Rodi, Francesca Scira-Scappuzzo, Yervant Vichabian, John Sogade, Frank Dale Morgan, David P. Lesmes
Publikováno v:
GEOPHYSICS. 71:B75-B84
Several laboratory and scaled model investigations suggest that organic contaminants affect the surface electrical properties of exposed soils/rocks and therefore produce measurable induced polarization (IP) signatures. However, there is little field
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3deb0c01d453cb9ef3e756e69e55f6a6
https://doi.org/10.1190/1.2196873
https://doi.org/10.1190/1.2196873
Autor:
R. C. Fleming, Frank Dale Morgan, Elizabeth Jensen, James R. Arrell, Pieter Vermeesch, Christopher DesAutels, Heather Hooper, Yervant Vichabian, Darrell Coles, John Sogade, Lorraine Lisiecki, Toby J. Kessler, Victoria Briggs
Publikováno v:
Geothermics. 33:277-308
Over several decades, the Saint Lucian Government and several international organizations have assessed the geothermal resource within the Qualibou Caldera, Saint Lucia. Over that period of time, nine exploratory wells were drilled to find an ideal l
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c018c4176cf0975f2fd26df8b19b328e
https://doi.org/10.1016/j.geothermics.2003.07.012
https://doi.org/10.1016/j.geothermics.2003.07.012
Autor:
A. Vandiver, John Sogade, Yervant Vichabian, Darrell Coles, Frank Dale Morgan, Phillip M. Reppert
Publikováno v:
IEEE Transactions on Geoscience and Remote Sensing. 42:754-763
This paper presents the principle, design, construction, and methodology for an electromagnetic (EM) system to be used in the detection/location and mapping of underground cavities using surface measurements. The EM instrument consists of a loop-loop
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::13a2c0f4383a88227922d02d0bdc4842
https://doi.org/10.1109/tgrs.2003.819882
https://doi.org/10.1109/tgrs.2003.819882
Publikováno v:
The Leading Edge. 21:1199-1202
Saint Lucia is part of the Lesser Antilles volcanic island arc in the eastern Caribbean (Figure 1). Volcanic activity has been concentrated in the southern half of the island for the last several million years (Wohletz et al., 1986). The Sulphur Spri
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6e992064ceb3c8fdabc28ae39d9773fa
https://doi.org/10.1190/1.1536133
https://doi.org/10.1190/1.1536133
Publikováno v:
Water Resources Research. 43
[1] Self-potential (SP) data are collected over an area of approximately 250 m2 at the Department of Energy Savannah River Site where there is known subsurface dense nonaqueous phase liquid (DNAPL) contamination. Nonpolarizing electrodes are used to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3663d7830a1cde33043342bf33771d41
https://doi.org/10.1029/2005wr003996
https://doi.org/10.1029/2005wr003996
Publikováno v:
Journal of Geophysical Research. 112
[1] The self-potential (SP) method has long been used for a variety of geophysical applications because of its ease of acquisition, but has suffered from difficulty in interpretation of the data. Self-potential signals result from a source term that
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9a8faa47df9b0fd0d4c8127a923ee6e4
https://doi.org/10.1029/2006jb004262
https://doi.org/10.1029/2006jb004262
Autor:
Michael Lambert, Frank Dale Morgan, J. Rossabi, Burke J. Minsley, Brian D. Riha, Darrell Coles, John Sogade, Phil Reppert, Victoria Briggs, Weiqun Shi
Publikováno v:
17th EEGS Symposium on the Application of Geophysics to Engineering and Environmental Problems.
In-situ complex resistivity (CR) or Induced Polarization (IP) data are collected using a 3D array of surface and borehole electrodes, over an area known to be contaminated with DNAPLs (Dense Non- Aqueous Phase Liquids). The contaminants include Tetra
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::aee0f34e8b626f3557bed60ad8a43330
https://doi.org/10.3997/2214-4609-pdb.186.dna04
https://doi.org/10.3997/2214-4609-pdb.186.dna04
Autor:
Michael Lambert, Victoria Briggs, Darrell Coles, Brian D. Riha, John Sogade, Phil Reppert, Weiqun Shi, Frank Dale Morgan, Joseph Rossabi, Burke J. Minsley
Publikováno v:
17th EEGS Symposium on the Application of Geophysics to Engineering and Environmental Problems.
Self-potential (SP) data are collected using a 3D array of non-polarizing electrodes, consisting of a surface grid and four borehole arrays, over an area known to be contaminated with DNAPLs (Dense Non-Aqueous Phase Liquids). The self-potential metho
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5f527b20b734f8d466d05f3abc8c336b
https://doi.org/10.3997/2214-4609-pdb.186.dna03
https://doi.org/10.3997/2214-4609-pdb.186.dna03
Publikováno v:
12th EEGS Symposium on the Application of Geophysics to Engineering and Environmental Problems.
The principle, design, and construction of an instrument for remote location of position and depth of a transmitter in a cave will be presented. Two people can use the system to map a cave location on the ground surface. The instrument consists of an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::434d3090c31f611badf59a7de2cb6aee
https://doi.org/10.3997/2214-4609-pdb.202.1999_035
https://doi.org/10.3997/2214-4609-pdb.202.1999_035