Zobrazeno 1 - 10
of 22
pro vyhledávání: '"John P. Greenhouse"'
Publikováno v:
Journal of Hydrology. 484:1-15
Summary The effectiveness of borehole profiling using a temperature probe for identifying hydraulically active fractures in rock has improved due to the combination of two advances: improved temperature sensors, with resolution on the order of 0.001
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a431c9a7c423bacfc64b50aba2ff5adc
https://doi.org/10.1016/j.jhydrol.2012.12.048
https://doi.org/10.1016/j.jhydrol.2012.12.048
Publikováno v:
Journal of Environmental and Engineering Geophysics. 12:307-322
We present a technique for placing a borehole into thermal dis-equilibrium, and thereby interpreting groundwater flow through fractures where it may have been previously undetected. Denoted as Active Line Source (ALS) logging, the method consists of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3c6547ed6aabc22aa912579bed60be09
https://doi.org/10.2113/jeeg12.4.307
https://doi.org/10.2113/jeeg12.4.307
Autor:
John P. Greenhouse, Anthony L. Endres
Publikováno v:
Ground Water. 34:283-292
Thermal neutron logging is used to determine water content by measuring the elastic scattering due to hydrogen present in rocks and soils. The response of a thermal neutron device is also affected by the radiative capture of thermal neutrons by all e
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::254943676186311abe8030998576c2fd
https://doi.org/10.1111/j.1745-6584.1996.tb01888.x
https://doi.org/10.1111/j.1745-6584.1996.tb01888.x
Autor:
Gary R. Olhoeft, A. P. Annan, John P. Greenhouse, M. L. Brewster, K. A. Sander, J. D. Redman, Bernard H. Kueper
Publikováno v:
Ground Water. 33:977-987
Seven hundred seventy liters of a dense nonaqueous phase liquid (DNAPL), tetrachloroethylene (PCE), were released into an isolated volume of a completely saturated natural sandy aquifer. The release was monitored over a period of 984 hours with a var
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::61a48fe0d43e797bcd87694d19962b23
https://doi.org/10.1111/j.1745-6584.1995.tb00043.x
https://doi.org/10.1111/j.1745-6584.1995.tb00043.x
Autor:
Barry Gough, John P. Greenhouse
Publikováno v:
Polar Record. 31:37-44
George Phillips, the naval stores officer at Esquimalt, British Columbia, was responsible for supplying from that base the Canadian Arctic Expedition (1913–1918) led by Vilhjalmur Stefansson. In addition to arranging details of supply in conjunctio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::df2f4cd6cd1ae410eaf4e3c121f731ae
https://doi.org/10.1017/s0032247400024840
https://doi.org/10.1017/s0032247400024840
Autor:
Aldo T. Mazzella, John P. Greenhouse, David Redman, Kathy Sander, George W. Schneider, Peter Annan, Gary R. Olhoeft, M. L. Brewster, Jeffrey E. Lucius
Publikováno v:
The Leading Edge. 12:261-267
The clearing in the central Ontario pine forest was hot, sandy, and busy as the two visitors stepped from the rental car and looked dubiously at the scene. A large metal‐clad building dominated the east side of the clearing which was about 50 m acr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f63d74811755b5ddd552cc2cf0a663ca
https://doi.org/10.1190/1.1436946
https://doi.org/10.1190/1.1436946
Publikováno v:
Ground water. 48(2)
In contaminant hydrogeology, investigations at fractured rock sites are typically undertaken to improve understanding of the fracture networks and associated groundwater flow that govern past and/or future contaminant transport. Conventional hydrogeo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::42359832c0e96466e187d44518863d48
https://pubmed.ncbi.nlm.nih.gov/19840124
https://pubmed.ncbi.nlm.nih.gov/19840124
Autor:
John P. Greenhouse, Peeter Pehme
Publikováno v:
Groundwater Monitoring & Remediation. 11:126-132
A device was developed to make fine-scale in situ measurements of formation and ground water conductivity at depths up to 10 meters in unconsolidated shallow aquifers. It consists of a casing that is left in place (“disposable”) and a probe that
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0a5770d6f476eaaf00213400196c72aa
https://doi.org/10.1111/j.1745-6592.1991.tb00399.x
https://doi.org/10.1111/j.1745-6592.1991.tb00399.x
Autor:
John P. Greenhouse
Publikováno v:
The Leading Edge. 10:32-34
This workshop, the publication later this year of the SEG’s three‐volume Geotechnical and Environmental Geophysics, and a number of other factors bring home to me the fact that geophysics and “the environment” are slowly discovering each othe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3d06b12e2c1175c9b99936d3fd40036e
https://doi.org/10.1190/1.1436775
https://doi.org/10.1190/1.1436775
Publikováno v:
5th EEGS Symposium on the Application of Geophysics to Engineering and Environmental Problems.
As part of a larger programme to understand the behaviour of dense non-aqueous phase liquids (DNAPLs) in the subsurface (Redman, 1992), a controlled release of 770 litres of perchloroethylene (PCE) into a 9 by 9 metre cell within a sandy aquifer was
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1937e653653229f3542d65a3994bf129
https://doi.org/10.3997/2214-4609-pdb.210.1992_038
https://doi.org/10.3997/2214-4609-pdb.210.1992_038