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פותח על ידי קלירמאש פתרונות בע"מ -
Line-Source Multi-Tracer Test for Assessing High Groundwater Velocity
Year:
2010
Source of publication :
Ground Water
Authors :
קורצמן, דניאל
;
.
Volume :
48
Co-Authors:
Magal, E., Geological Survey of Israel, 30 Malkhe Israel St., Jerusalem 95501, Israel
Weisbrod, N., Geological Survey of Israel, 30 Malkhe Israel St., Jerusalem 95501, Israel
Yakirevich, A., Geological Survey of Israel, 30 Malkhe Israel St., Jerusalem 95501, Israel
Kurtzman, D., Institute of Soil, Water and Environmental Sciences, Agricultural Research Organization, Volcani Center, Bet Dagan 50250, Israel
Yechieli, Y., Geological Survey of Israel, 30 Malkhe Israel St., Jerusalem 95501, Israel
Facilitators :
From page:
892
To page:
897
(
Total pages:
6
)
Abstract:
Segmented line-source multi-tracer injection is suggested as an effective method for assessing groundwater velocities and flow directions in subsurfaces characterized by high water flux. Modifying the common techniques of injecting a tracer into a well became necessary after point-source natural and forced gradient tracer tests ended with no reliable information on the local groundwater flow. The tracer's line-source increases the likelihood of success of the test and could provide additional information regarding the lateral heterogeneity of the aquifer.In a field experiment conducted in the northwestern part on the Dead Sea coast, tracers were injected into an 8-m-long line injection system perpendicular to the assumed flow direction. The injection system was divided into four separate segments with four different tracers. An array of five boreholes located within a 10 × 10 m area downstream was used for monitoring the tracers' transport. Two dye tracers (uranine and Na naphthionate) were injected in a long pulse of several hours into two of the injection pipe segments. Two other tracers (Rhenium oxide and Gd-DTPA) were instantaneously injected into the other two segments. The tracers were detected 0.7 to 2.3 h after injection in four of the five observation wells, located 2.3 to 10 m away from the injection system.The groundwater velocity was determined to be ~80 to 170 m/d, based on the recoveries of the tracers. The groundwater flow direction was derived based on the arrival of the tracers and was found to be quite consistent with the apparent direction of the hydraulic gradient. Copyright © 2010 The Author(s). Journal compilation © 2010 National Ground Water Association.
Note:
Related Files :
aquifers
Injection systems
Israel
Lateral heterogeneity
Observation wells
Water injection
עוד תגיות
תוכן קשור
More details
DOI :
10.1111/j.1745-6584.2010.00707.x
Article number:
Affiliations:
Database:
סקופוס
Publication Type:
מאמר
;
.
Language:
אנגלית
Editors' remarks:
ID:
22053
Last updated date:
02/03/2022 17:27
Creation date:
16/04/2018 23:49
You may also be interested in
Scientific Publication
Line-Source Multi-Tracer Test for Assessing High Groundwater Velocity
48
Magal, E., Geological Survey of Israel, 30 Malkhe Israel St., Jerusalem 95501, Israel
Weisbrod, N., Geological Survey of Israel, 30 Malkhe Israel St., Jerusalem 95501, Israel
Yakirevich, A., Geological Survey of Israel, 30 Malkhe Israel St., Jerusalem 95501, Israel
Kurtzman, D., Institute of Soil, Water and Environmental Sciences, Agricultural Research Organization, Volcani Center, Bet Dagan 50250, Israel
Yechieli, Y., Geological Survey of Israel, 30 Malkhe Israel St., Jerusalem 95501, Israel
Line-Source Multi-Tracer Test for Assessing High Groundwater Velocity
Segmented line-source multi-tracer injection is suggested as an effective method for assessing groundwater velocities and flow directions in subsurfaces characterized by high water flux. Modifying the common techniques of injecting a tracer into a well became necessary after point-source natural and forced gradient tracer tests ended with no reliable information on the local groundwater flow. The tracer's line-source increases the likelihood of success of the test and could provide additional information regarding the lateral heterogeneity of the aquifer.In a field experiment conducted in the northwestern part on the Dead Sea coast, tracers were injected into an 8-m-long line injection system perpendicular to the assumed flow direction. The injection system was divided into four separate segments with four different tracers. An array of five boreholes located within a 10 × 10 m area downstream was used for monitoring the tracers' transport. Two dye tracers (uranine and Na naphthionate) were injected in a long pulse of several hours into two of the injection pipe segments. Two other tracers (Rhenium oxide and Gd-DTPA) were instantaneously injected into the other two segments. The tracers were detected 0.7 to 2.3 h after injection in four of the five observation wells, located 2.3 to 10 m away from the injection system.The groundwater velocity was determined to be ~80 to 170 m/d, based on the recoveries of the tracers. The groundwater flow direction was derived based on the arrival of the tracers and was found to be quite consistent with the apparent direction of the hydraulic gradient. Copyright © 2010 The Author(s). Journal compilation © 2010 National Ground Water Association.
Scientific Publication
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