| Alternate number: | W2-90 |
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| Platform: | 
WHITE HEATH |
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| Submersible: | |
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| Owner-Operator: | USCG-Boston, MA |
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| Captain: | Michael E. Frias, Chief Warrant Officer |
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| Center Principal: | Michael Bothner |
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Affiliate Principal
(if any): | |
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| Area of Operations: | Massachusetts Bay, Massachusetts, United States, North America, North Atlantic |
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| Bounding Coordinates | |
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| North: | 42.43 |
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| South: | 42.35 |
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| West: | -70.85 |
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| East: | -70.75 |
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| Start and End Dates: | Mar 27, 1990 to Mar 29, 1990 |
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| Start and End Ports: | from Boston CG Base, Boston, MA to Boston CG Base, Boston, MA |
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| Days at Sea: | 3 |
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| Project Number: | |
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| Project Title: | Circulation, Pollutant Transport - MA Coastal Water |
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| Cruise Funding Source: | joint funding - USGS and MA Water Resources Authority |
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| Contract: | |
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| Type of Activity: | Sampling
Mooring work
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| Objectives: | The objective of the program is to make long-term measurements of currents and sediment transport in the vicinity of the proposed ocean outfall in Massachusetts Bay. The purpose of this cruise was to recover and redeploy the instrumented moorings. Mooring design is shown in figure 2. Samples of bottom sediments are collected on each cruise required to service the instruments. This was the second in a series of six cruises during the 2 year period of the present Joint Funding Agreement between the Massachusetts Water Resources Authority and the USGS. |
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| Information to be derived: | Time series data
Samples and Chemical Analysis
Suspended Sediment Concentrations
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| Data Types (and Media) Produced: | |
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Scientific Party
(USGS): | Barbanti - mooring work, sampling; Dann Blackwood - mooring work, sampling; Michael Bothner - mooring work, sampling; Brad Butman - mooring work; Richard Rendigs - mooring work, sampling; William Strahle - mooring work; Adam Brown - sampling; Carol Parmenter - sampling |
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Scientific Party
(affiliate): | Wayne Spencer (WHOI) - tripod recovery diver; Lary Ball (WHOI) - tripod recovery diver |
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| Data Curator: | |
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| Scientific Equipment: | Mooring gear
Butman Tripod subsurface array VMCM LNB
Van Veen grab sampler
Hydraulically damped gravity corer
television camera - USGS, Branch of Pacific Marine Geology, Menlo Park, CA |
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| Navigation techniques used: | LNB, horizontal sextant angles, Loran C |
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| Summary of Results: | Moorings deployed: 2(#340,341 recovered #90016 WHITE HEATH July 10-11, 1990). Moorings recovered: 2 (#338, 339 deployed #89035 WHITE HEATH Dec. 5-6, 1989.) |
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| Number of Stations Occupied: | 3 |
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| Station Description: | |
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| Number of Submersible Dives: | |
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| Continuous Data (in Km): | |
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| Seismic Line Descriptions: | |
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| Track Plot: | |
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| Related Web Sites: | http://soundwaves.usgs.gov/2008/07/awards.html |
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| Remarks: | This cruise was extended to 3 days in order to recover the tripod which would not release its float on command. Using careful acoustic ranging and highly accurate triangulation, the position of the instrument was pinpointed. On the second day of the cruise (Mar. 28), divers from WHOI were placed within 50 ft of the instrument and attached a retrieval line. All our equipment was recovered without damage. The divers reported that the recovery rope canister was detached from the tripod. A piece of fishing net remained on the tripod suggesting how the rope canister might have been damaged. |
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| Contact: | Michael Bothner (mbothner@usgs.gov) |
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U.S. Department of the Interior |
U.S. Geological Survey