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An investigation of coastal groundwa...

Volpi, Christina M.

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An investigation of coastal groundwater discharge and associated nutrient inputs using electrical resistivity, temperature, and geochemical tracers in Pescadero Lagoon, California.

Record Type:	Electronic resources : Monograph/item
Title/Author:	An investigation of coastal groundwater discharge and associated nutrient inputs using electrical resistivity, temperature, and geochemical tracers in Pescadero Lagoon, California./
Author:	Volpi, Christina M.
Description:	62 p.
Notes:	Source: Masters Abstracts International, Volume: 53-03.
Contained By:	Masters Abstracts International53-03(E).
Subject:	Marine geology. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=1560896
ISBN:	9781321047363

An investigation of coastal groundwater discharge and associated nutrient inputs using electrical resistivity, temperature, and geochemical tracers in Pescadero Lagoon, California.
Volpi, Christina M.

An investigation of coastal groundwater discharge and associated nutrient inputs using electrical resistivity, temperature, and geochemical tracers in Pescadero Lagoon, California. - 62 p.

Source: Masters Abstracts International, Volume: 53-03.

Thesis (M.S.)--San Jose State University, 2014.

This item must not be sold to any third party vendors.

Pescadero Lagoon is a complex lagoon system located on the central California coast in San Mateo County. Over the last decade, external stressors such as degraded water quality, restricted circulation, heightened groundwater withdrawals, changes in the fluvial geomorphology that affect surface water runoff, and widespread agriculture in the watershed have impacted the lagoon. The lagoon system is bounded on the marine side by an ephemeral sand berm that is seasonally closed and so hinders open exchange with the ocean. This berm and the Mediterranean-type climate play an important role in the lagoon's circulation and water quality. The most high-profile and deleterious effect of reduced ocean-lagoon exchange and restricted water circulation is the occurrence of bottom-water low oxygen events that can trigger seasonal fish kills. This project employed a suite of geophysical and geochemical techniques to better understand the role of groundwater on lagoon water and constituent balances. The main objective of this research was to quantify groundwater seepage rates into Pescadero Lagoon across broad spatial and temporal scales using electrical resistivity, temperature, and Radon-222 (222Rn) as tracers of groundwater movement. Resulting seepage rate estimates were then used to derive associated nutrient flux estimates, which can be compared to atmospheric and riverine nutrient load estimates to yield more comprehensive nutrient budgets.

ISBN: 9781321047363Subjects--Topical Terms:

3173821
Marine geology.

An investigation of coastal groundwater discharge and associated nutrient inputs using electrical resistivity, temperature, and geochemical tracers in Pescadero Lagoon, California.
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020 $a 9781321047363
035 $a (MiAaPQ)AAI1560896
035 $a AAI1560896
040 $a MiAaPQ $c MiAaPQ
100 1 $a Volpi, Christina M. $3 3173843
245 1 3 $a An investigation of coastal groundwater discharge and associated nutrient inputs using electrical resistivity, temperature, and geochemical tracers in Pescadero Lagoon, California.
300 $a 62 p.
500 $a Source: Masters Abstracts International, Volume: 53-03.
500 $a Adviser: Erika McPhee-Shaw.
502 $a Thesis (M.S.)--San Jose State University, 2014.
506 $a This item must not be sold to any third party vendors.
520 $a Pescadero Lagoon is a complex lagoon system located on the central California coast in San Mateo County. Over the last decade, external stressors such as degraded water quality, restricted circulation, heightened groundwater withdrawals, changes in the fluvial geomorphology that affect surface water runoff, and widespread agriculture in the watershed have impacted the lagoon. The lagoon system is bounded on the marine side by an ephemeral sand berm that is seasonally closed and so hinders open exchange with the ocean. This berm and the Mediterranean-type climate play an important role in the lagoon's circulation and water quality. The most high-profile and deleterious effect of reduced ocean-lagoon exchange and restricted water circulation is the occurrence of bottom-water low oxygen events that can trigger seasonal fish kills. This project employed a suite of geophysical and geochemical techniques to better understand the role of groundwater on lagoon water and constituent balances. The main objective of this research was to quantify groundwater seepage rates into Pescadero Lagoon across broad spatial and temporal scales using electrical resistivity, temperature, and Radon-222 (222Rn) as tracers of groundwater movement. Resulting seepage rate estimates were then used to derive associated nutrient flux estimates, which can be compared to atmospheric and riverine nutrient load estimates to yield more comprehensive nutrient budgets.
590 $a School code: 6265.
650 4 $a Marine geology. $3 3173821
650 4 $a Hydrologic sciences. $3 3168407
650 4 $a Geology. $3 516570
690 $a 0556
690 $a 0388
690 $a 0372
710 2 $a San Jose State University. $b Marine Science. $3 3169799
773 0 $t Masters Abstracts International $g 53-03(E).
790 $a 6265
791 $a M.S.
792 $a 2014
793 $a English
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=1560896