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Pacific Southwest Research Station
800 Buchanan Street
West Annex Building
Albany, CA 94710-0011

(510) 559-6300
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Research Topics

Watershed & Watersheds: Turbidity Threshold Sampling

^ Main Topic | Caspar Creek Watershed Study | Fine Sediment in Pools Kings River Turbidity Threshold Sampling Study | CALFED |

Upper Jacoby Creek Hydrologic Data:
Location Information
The Jacoby Creek watershed is located in northern California on the City of Arcata's land, at N 40° 47' 30" latitude, W 124° 00' 10" longitude. This region receives on average about 50 inches of rain per year, occurring mostly between the months of November to April. Local sediments are derived from the Franciscan Formation, which dates from Jurassic to Cretaceous times. The most common bedrock types are greywacke sandstone and silty shale. The local vegetation consists of coastal redwood, alder, Douglas-fir, and other conifers.

Data Available
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Data Format

Contact Information

Related Information and Publications
  • Arcata Community Forest & Jacoby Creek Forest Management Plan
    By Mark Andre
  • Long Term Improvement of the Jacoby Creek Watershed
    Compiled and written by Robert C. Wunner
  • A Study of the Jacoby Creek Watershed, Humboldt County, California
    By Alison Murray and Robert C. Wunner, Jacoby Creek Canyon Community, Inc. Bayside, CA.

Upper Jacoby Creek Photo Gallery

A pool created by a large boulder and bedrock outcrop just upstream of the gaging site.

The shelter houses the Campbell data logger, ISCO pumping sampler, and power supply. The boom positions the turbidity probe and sampler intake just upstream of the weir.

A pool upstream from the gaging site.

The turbidity probe is mounted in a housing attached to the articulating boom, and the pressure transducer is mounted in conduit on the downstream edge of the staff plate.

Last updated on April 3, 2003, by Rand Eads

Research is being conducted by:
  • Cumulative Effects of Forest Mgmt on Hillslope Processes, Fishery Resources, and Downstream Environments (RWU-4351)

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    Last Modified: Aug 28, 2008 06:47:13 AM