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Circulation and Physical Processes within the San Gabriel River Estuary During Summer 2005
Entry ID: USGS_OFR_2007_1011

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Summary

Abstract: The Southern California Coastal Water Research Project (SCCWRP) is developing a
hydrodynamic model of the SGR estuary, which is part of the comprehensive
water-quality model of the SGR estuary and watershed investigated by SCCWRP and
other local agencies. The hydrodynamic model will help understanding of 1) the
exchange processes between the estuary and coastal ocean; 2) the circulation
patterns in the estuary; 3) upstream natural runoff and the cooling discharge
from PGS.

Like all models, the SGR hydrodynamic model is only useful after it is fully
calibrated and validated. In May 2005, SCCWRP requested the assistance of the
U.S. geological Survey (USGS) Coastal and Marine Geology team (CMG) in
collecting data on the hydrodynamic conditions in the estuary during the summer
dry season. The summer was chosen for field data collection as this was assumed
to be the season with the greatest potential for chronic degraded water quality
due to low river flow and high thermal stratification within the estuary (due
to both higher average air temperature and PGS output). Water quality can be
degraded in winter as well, when higher river discharge events bring large
volumes of water from the Los Angeles basin into the estuary. The objectives of
this project were to 1) collect hydrodynamic data along the SGR estuary; 2)
study exchange processes within the estuary through analysis of the
hydrodynamic data; and 3) provide field data for model calibration and
validation. As the data only exist for the summer season, the results herein
only apply to summer conditions.

Related URL

Link: GET DATA
Description: Report on the Circulation and Physical Processes within the San Gabriel River
Estuary During Summer 2005.

Link: VIEW PROJECT HOME PAGE
Description: The Southern California Coastal Water Research Project.

Geographic Coverage

N: 34.0 S: 33.0 E: -118.0 W: -119.0

Data Set Citation

Dataset Originator/Creator: Kurt J. Rosenberger, Jingping Xu, Eric D. Stein, Marlene A. Noble, and Anne L. Gartner
Dataset Title: Circulation and Physical Processes within the San Gabriel River Estuary During Summer 2005
Dataset Series Name: USGS Open File Report
Dataset Release Date: 2007
Dataset Release Place: Reston, VA
Dataset Publisher: U.S. Geological Survey
Version: 1.0
Online Resource: http://pubs.usgs.gov/of/2007/1011/

Temporal Coverage

Start Date: 2005-05-01

Location Keywords

CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > CALIFORNIA

ISO Topic Category

BIOTA
ENVIRONMENT

GEOSCIENTIFIC INFORMATION
INLAND WATERS
OCEANS

Platform

SHIPS [Information]

Instrument

GPS RECEIVERS [Information]

ADCP >Acoustic Doppler Current Profiler [Information]

Keywords

USGS

OFR

Open File Report

Estuary

Coastal Circulation

Tidal Circulation

Flow Rate

Data Set Progress

COMPLETE

Originating Center

USGS

Data Center

Western Region CMG, Coastal and Marine Geology, U.S. Geological Survey, U.S. Department of the Interior [Information]
Data Center URL: http://walrus.wr.usgs.gov/

Data Center Personnel

Name: USGS WESTERN PUBLICATIONS GROUP
Phone: 650-329-5057
Contact Address:
U.S. Geological Survey
345 Middlefield Rd, MS 951
City: Menlo Park
Province or State: CA
Postal Code: 94025
Country: USA

Distribution

Distribution_Media: Online
Distribution_Format: PDF
Fees: No fees

Personnel

KURT ROSENBERGER
Role: INVESTIGATOR
Phone: (831) 427-4735
Fax: (650) 329-5435
Email: krosenberger at usgs.gov
Contact Address:
USGS Pacific Science Center
400 Natural Bridges Drive
City: Santa Cruz
Province or State: CA
Postal Code: 95060
Country: USA

JINGPING XU
Role: INVESTIGATOR
Phone: (650) 329-5283
Fax: (650) 329-519
Email: jpx at usgs.gov
Contact Address:
USGS
345 Middlefield Road, m.s. 999
City: Menlo Park
Province or State: CA
Postal Code: 94025
Country: USA

Creation and Review Dates

DIF Creation Date: 2007-02-12

Last DIF Revision Date: 2007-02-12

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