Measures of turbidity in coastal waters, Coconut Island, Oahu, Hawaii, August 31 - September 2, 2005: workshop proceedings

Alliance for Coastal Technologies (2005) Measures of turbidity in coastal waters, Coconut Island, Oahu, Hawaii, August 31 - September 2, 2005: workshop proceedings. Solomons, MD, Alliance for Coastal Technologies, (ACT 05-08, UMCES CBL 06-026)

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Abstract

A three day workshop on turbidity measurements was held at the Hawaii Institute of Marine Biology from August 3 1 to September 2, 2005. The workshop was attended by 30 participants from industry, coastal management agencies, and academic institutions. All groups recognized common issues regarding the definition of turbidity, limitations of consistent calibration, and the large variety of instrumentation that nominally measure "turbidity." The major recommendations, in order of importance for the coastal monitoring community are listed below: 1. The community of users in coastal ecosystems should tighten instrument design configurations to minimize inter-instrument variability, choosing a set of specifications that are best suited for coastal waters. The IS0 7027 design standard is not tight enough. Advice on these design criteria should be solicited through the ASTM as well as Federal and State regulatory agencies representing the majority of turbidity sensor end users. Parties interested in making turbidity measurements in coastal waters should develop design specifications for these water types rather than relying on design standards made for the analysis of drinking water. 2. The coastal observing groups should assemble a community database relating output of specific sensors to different environmental parameters, so that the entire community of users can benefit from shared information. This would include an unbiased, parallel study of different turbidity sensors, employing a variety of designs and configuration in the broadest range of coastal environments. 3. Turbidity should be used as a measure of relative change in water quality rather than an absolute measure of water quality. Thus, this is a recommendation for managers to develop their own local calibrations. See next recommendation. 4. If the end user specifically wants to use a turbidity sensor to measure a specific water quality parameter such as suspended particle concentration, then direct measurement of that water quality parameter is necessary to correlate with 'turbidity1 for a particular environment. These correlations, however, will be specific to the environment in which they are measured. This works because there are many environments in which water composition is relatively stable but varies in magnitude or concentration. (pdf contains 22 pages)

Item Type: Monograph or Serial Issue
Title: Measures of turbidity in coastal waters, Coconut Island, Oahu, Hawaii, August 31 - September 2, 2005: workshop proceedings
Corporate Creator/Author: Alliance for Coastal Technologies
Series Name: ACT 05-08, UMCES CBL 06-026
Date: 2005
Publisher: Alliance for Coastal Technologies
Place of Publication: Solomons, MD
Projects: Alliance for Coastal Technologies, CBL/UMCES
Funders: NOAA
Event Type: Workshop
Issuing Agency: University of Maryland Center for Environmental Science. Chesapeake Biological Laboratory
Subjects: Oceanography
Engineering
Environment
Item ID: 3120
Depositing User: Kathleen Heil
Date Deposited: 29 Apr 2010 19:32
Last Modified: 29 Sep 2011 17:52
URI: http://aquaticcommons.org/id/eprint/3120

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