Trask Richard P.

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Arabian Sea mixed layer dynamics experiment : mooring deployment cruise report R/V Thomas Thompson cruise number 46, 14 April-29 April 1995

(Woods Hole Oceanographic Institution, 1995-07) Trask, Richard P. ; Weller, Robert A. ; Ostrom, William M.

This report describes in a general manner the work that took place during the R/V Thomas Thompson cruise number 46 which was the mooring turnaround cruise for the moored array program. A detailed description of the WHOI surface mooring and its instrumentation is provided. Information about the XBT and CTD data and near-surface temperature data collected during the cruise is also included.
The Subduction experiment : cruise report RRS Charles Darwin cruise number 73 subduction 3 mooring deployment and recovery cruise, 30 September-26 October 1992

(Woods Hole Oceanographic Institution, 1993-03) Trask, Richard P. ; Jenkins, William J. ; Sherman, Jeffrey ; McPhee, Neil M. ; Ostrom, William M. ; Payne, Richard E.

Subduction is the mechanism by which water masses formed in the mixed layer and near the surface of the ocean find their way into the upper thermocline. The subduction process and its underlying mechanisms were studied through a combination of Eulerian and Langrangian measurements of velocity, measurements of tracer distrbutions and hydrographic properties and modeling. An array of five surface moorings carrying meteorological and oceanographic instrumentation were deployed for a period of two years beginning in June 1991 as part of an Office of Naval Research (ONR) funded Subduction experiment. Three eight month deployments were planned. The moorings were deployed at 18°N 34°W, 18°N 22°W, 25.5°N 29°W, 33°N 22°W and 33°N 34°W. A Vector Averaging Wind Recorder (VAWR) and an Improved Meteorological Recorder (IMET) collected wind speed and wind direction, sea surface temperature, air temperature, short wave radiation, barometric pressure and relative humidity. The IMET also measured precipitation. The moorings were heavily instrumented below the surface with Vector Measuring Current Meters (VMCM), and single point temperature recorders. Expendable bathythermograph (XBT) data were collected and meteorological observations were made while transitting between mooring locations. In addition a series of 59 cm stations were made and water samples taken to be analyzed for tritium levels, salinity and dissolved oxygen content. This report describes the work that took place during RRS Charles Darwin cruise number 73 which was the third scheduled Subduction mooring cruise. During this cruise the second setting of the moorings were recovered and redeployed for a third eight month period. This report includes a description of the instrumentation that was deployed and recovered, has information about the underway measurements (XBT and meteorological observations) that were made including plots of the data, includes a description of the work conducted in conjunction with the tracer/hydrography program and presents a chronology of the cruise events.
The Subduction experiment : cruise report R/V Oceanus : cruise number 240 leg 3 : subduction 1 mooring deployment cruise, 17 June-5 July 1991

(Woods Hole Oceanographic Institution, 1993-03) Trask, Richard P. ; Brink, Nancy J.

Subduction is the mechanism by which water masses formed in the mixed layer and near the surface of the ocean find their way into the upper thermocline. The subduction process and its underlying mechanisms were studied through a combination of Eulerian and Langrangian measurements of velocity, measurements of tracer distributions and hydrographic properties and modeling. An array of five surface moorings carrying meteorological and oceanographic instrumentation were deployed for a period of two years beginning in June 1991 as part of an Office of Naval Research (ONR) funded Subduction experiment. Three eight month deployments were planned. The initial deployment of five surface moorings took place during the third leg of R/V Oceanus cruise number 240. The moorings were deployed at 18°N 34°W, 18°N 22°W, 25.5°N 29°W, 33°N 22°W and 33°N 34°W. A Vector Averaging Wind Recorder (VAWR) and an Improved Meteorological Recorder (IMET) collected wind speed and wind direction, sea surface temperature, air temperature, short wave radiation, long wave radiation, barometric pressure and relative humidity. The IMET also measured precipitation. The moorings were heavily instrumented below the surface with Vector Measuring Current Meters (VMCM) and single point temperature recorders. Expendable bathythermograph (XBT) data were collected and meteorological observations were made while transitting between moonng locations. This report describes the work that took place during R/V Oceanus cruise 240 leg 3. It includes a description of the instrumentation that was deployed,information about the XBT data collected and plots of the data as well as a chronology of the cruise events.
Preliminary acoustic and oceanographic observations from the ASIAEX 2001 South China Sea Experiment

(Woods Hole Oceanographic Institution, 2001-09) Newhall, Arthur E. ; Costello, Lawrence ; Duda, Timothy F. ; Dunn, James M. ; Gawarkiewicz, Glen G. ; Irish, James D. ; Kemp, John N. ; McPhee, Neil M. ; Liberatore, Stephen P. ; Lynch, James F. ; Ostrom, William M. ; Schroeder, Ted ; Trask, Richard P. ; von der Heydt, Keith

The Asian Seas International Experiment (ASIAEX) was a very successful scientific collaboration between the United States of America (USA), the People’s Republic of China (PRC), Taiwan (ROC), the Republic of Korea (ROK), Japan, Russia, and Singapore. Preliminary field experiments associated with ASIAEX began in spring of 2000. The main experiments were performed in April-August, 2001. The scientific plan called for two major acoustics experiments, the first a bottom interaction experiment in the East China Sea (ECS) and the second a volume interaction experiment in the South China Sea (SCS). In addition to the acoustics efforts, there were also extremely strong physical oceanography and geology and geophysics components to the experiments. This report will concentrate on describing the moored component of the South China Sea portion of ASIAEX 2001 performed from the Taiwan Fisheries research vessel FR1 (Fisheries Researcher 1). Information on the environmental moorings deployed from the Taiwanese oceanographic research vessel OR1 (Oceanographic Researcher 1) will also be listed here for completeness, so that the reader can pursue later analyses of the data. This report does not pursue any data analyses per se.
The Subduction experiment : mooring field program and data summary ; Sub 1 June 1991-February 1992 ; Sub 2 February 1992-October 1992 ; Sub 3 October 1992-June 1993

(Woods Hole Oceanographic Institution, 1995-06) Brink, Nancy J. ; Moyer, Kerry A. ; Trask, Richard P. ; Weller, Robert A.

An array of five surface moorings carrying meteorological and oceanographic instrumentation was deployed for a period of two years beginning in June 1991 as part of an Office of Naval Research (ONR) funded Subduction experiment. Three eight month deployments were carried out. The five mooring locations were 18°N 34°W, 18°N 22°W, 25.5°N 29°W, 33°N 22°W and 33°N 34°W. Two Woods Hole Oceanographic Institution (WHOI) and three Scripps Institution of Oceanography (SIO) moorings collected oceanographic and meteorological data, using a 3-meter discus or 2-meter toroid buoy and multiple Vector Measuring Current Meters (VMCMs), an Acoustic Doppler Current Profiler (ADCP) and Brancker temperature recorders (tpods). The surface buoys carried a Vector Averaging Wind Recorder (VAWR) and, on four of the five moorings, an Improved Meteorological Recorder (IMET) which measured wind speed and wind direction, sea surface temperature, air temperature, short wave radiation, barometric pressure and relative humidity. The IMET also measured precipitation. The VMCMs, ADCP and tpods, placed at depths 1 m to 3500 m, measured oceanic velocities and temperatures. This report presents meteorological and oceanographic data from the WHOI Upper Ocean Processes Group (UOP) and the SIO Instrument and Development Group (lDG) instruments and contains summaries of the instruments used, their depths, mooring positions, mooring deployment and recovery times, and data return. Appendices contain information on supplementary Subduction data sets.
The horizontal mooring : a two-dimensional array, description of the array, components, instrumentation, deployment and recovery operations

(Woods Hole Oceanographic Institution, 1999-09) Trask, Richard P. ; Anderson, Steven P. ; Way, Bryan S. ; Ostrom, William M. ; Paul, Walter ; Grosenbaugh, Mark A. ; Gobat, Jason I. ; Weller, Robert A.

A moored two-dimensional array with instrumentation distributed both horizontally and vertically was deployed for 27 days in August 1998 at an 85 meter deep site in Massachusetts Bay near Stellwagon basin. The horizontal mooring consisted of a 160- meter long horizontal element positioned at a depth of 20 meters between two subsurface moorings. Suspended below the horizontal member were five 25-meter long vertical strings. The vertical strings had a horizontal separation of 30 meters and each had instruments at depths of 20, 25, 30, 35, 40 and 45 meters. Instrumentation deployed on the two-dimensional array included acoustic current meters, temperature sensors, conductivity measuring instruments, pressure sensors and motion monitoring packages. This report includes a detailed description of the two-dimensional array, the anchoring system and the instrumentation that were deployed. Also included is a description of the deployment and recovery techniques that were employed as well as an assessment of the performance of the array.
Pan American Climate Study (PACS) mooring deployment cruise report : R/V Roger Revelle cruise number Genesis 4, 9 April-5 May 1997

(Woods Hole Oceanographic Institution, 1998-04) Way, Bryan S. ; Ostrom, William M. ; Weller, Robert A. ; Ware, Jonathan D. ; Trask, Richard P. ; Cole, Rick ; Donovan, Jeff

Three surface moorings were deployed in the eastern equatorial Pacifc from the R/V Roger Revelle as part of the Pan American Climate Study (PACS). PACS is a NOAA-funded study with the goal of investigating links between sea surface temperature varabilty in the tropical oceans near the Americas and climate over the American continents. The three moorings were deployed near 125°W, spanning the strong meridional sea surface temperature gradient associated with the cold tongue south of the equator and the warmer ocean north of the equator, near the northernmost, summer location of the Intertropical Convergence Zone. The mooring deployment was done to improve understading of the air-sea fluxes and of the processes that control the evolution of the sea surface temperature field in the region. Two surface moorings of the Upper Ocean Processes Group at the Woods Hole Oceanographic Institution (WHOI) were deployed-one at 3°S, 125°W and the other at lO°N, 125°W. One mooring from the Ocean Circulation Group (R. Weisberg) at the University of South Florida (USP) was deployed on the equator at 128°W. The buoys of the two WHOI moorings were each equipped with meteorological instrmentation, including a Vector Averaging Wind Recorder, and an Improved Meteorological (IMET) system. The WHOI moorings also carried Vector Measurng Current Meters, single-point temperature recorders, and conductivity and temperature recorders located in the upper 200 meters of the mooring line. In addition to the instrumentation noted above, a variety of other instruments, including an acoustic current meter, acoustic doppler current meters, bio-optical instrument packages and an acoustic rain gauge, were deployed during the PACS field program. The USF mooring had an IMET system on the surface buoy and for oceanographic instrumentation, two RD Instruments acoustic doppler current profilers, single-point temperature recorders, and conductivity and temperature recorders. Conductivity-temperature-depth (CTD) profiles were made at each mooring site and during the transit between mooring locations. This report describes, in a general manner, the work that took place durig the Genesis 4 cruise aboard the R/V Roger Revelle. The three surface moorings deployed during this cruise will be recovered and re-deployed after approximately nine months, with a final recovery planned for 17 months after the first setting. Details of the mooring designs and preliminary data from the CT profies are included.
FASINEX (Frontal Air-Sea Interaction Experiment) moored instrumentation

(Woods Hole Oceanographic Institution, 1989-02) Trask, Richard P. ; Dean, Jerome P. ; Valdes, James R. ; Marquette, Craig D.

In 1986, FASINEX, a Frontal Air-Sea Interaction Experiment, a multi-investigator cooperative experiment, was conducted to study the role of horizontal variability in air-sea interaction in the persistent front formed in the subtropical convergence zone south of Bermuda. Aimed at investigating all aspects of the atmospheric and oceanic variables related to the formation and maintenance of the front, an array of meteorological and current meter moorings was deployed by the Woods Hole Oceanographic Institution Buoy Group in 5400 meters of water . Two subsurface current meter moorings were deployed in October, 1984; five surface meteorological and current meter moorings and four Profiling Current Meter (PCM) moorings were set in January 1986 . All except one PCM mooring, which was lost, were recovered in June 1986. This report discusses the extensive preparations of, and modifications to, the Woods Hole Oceanographic Institution Buoy Group instruments placed on the five surface moorings. The equipment included 30 vector measuring current meters, ten vector averaging current meters and five vector averaging wind recorders .
Arabian Sea mixed layer dynamics experiment mooring recovery cruise report : R/V Thomas Thompson Cruise Number 52, 14 October-25 October 1995

(Woods Hole Oceanographic Institution, 1996-09) Ostrom, William M. ; Way, Bryan S. ; Weller, Robert A. ; Ware, Jonathan D. ; Trask, Richard P.

An array of surface and subsurface moorings was deployed in the Arabian Sea to provide high quality time series of local forcing and upper ocean currents, temperature, and conductivity in order to investigate the dynamics of the ocean's response to the monsoonal forcing characteristic of the area. The moored array was first deployed during R/V Thomas Thompson cruise number 40; recovered and redeployed during R/V Thomas Thompson cruise number 46 and recovered to conclude the deployment during R/V Thomas Thompson cruise number 52. The array was part of the Office of Naval Research (ONR) funded Arabian Sea experiment. This report describes, in a general manner, the work that took place during the R/V Thomas Thompson cruise number 52. A detailed description of the Woods Hole Oceanographic Institution (WHOI) surface mooring and its instrumentation is provided. Information about the XBT and CTD data and near surface temperature data collected during the cruise is also included.
Arabian Sea mixed layer dynamics experiment : mooring deployment cruise report R/V Thomas Thompson cruise number 40, 11 October-25 October 1994

(Woods Hole Oceanographic Institution, 1995-01) Trask, Richard P. ; Way, Bryan S. ; Ostrom, William M. ; Allsup, Geoffrey P. ; Weller, Robert A.

An array of surface and subsurface moorings were deployed in the Arabian Sea to provide high quality time series of local forcing and upper ocean currents, temperature, and conductivity in order to investigate the dynamics of the ocean's response to the monsoonal forcing characteristic of the area. The moored array was deployed during R/V Thomas Thompson cruise number 40, One Woods Hole Oceanographic Institution (WHOI) surface mooring, two Scripps Institution of Oceanography (SIO) surface moorings and two University of Washington (UW) Profiling Current Meter moorings were deployed. The moorings were deployed for a period of one year beginning in October 1994 as part of the Office of Naval Research (ONR) funded Arabian Sea experiment. Two six month deployments were planned. The moorings were deployed at 15.5°N 61.5°E (WHOI), 15.7°N 61.3°E (SIO), 15.3°N 61.3°E (SIO), 15.7°N 61.7°E (UW), and 15.3°N 61.7°E (UW). The WHOI surface mooring was outfitted with two meteorological data collection systems. A Vector Averaging Wind Recorder (VAWR) and an IMET system made measurements of wind speed and direction, sea surface temperature, air temperature, short wave radiation, long wave radiation, barometric pressure, relative humidity and precipitation. Subsurface instrumentation included Vector Measuring Current Meters (VMCMs), Multi-Variable Moored Systems (MVMS), conductivity and temperature recorders and single point temperature recorders. Expendable bathythermograph (XBT) data and CTD data were collected while in transit to the site and between mooring locations. This report describes in a general manner the work that took place during R/V Thomas Thompson cruise number 40 which was the initial deployment cruise for this moored array. A detailed description of the WHOI surface mooring and its instrumentation is provided. Information about the XBT and CTD data collected during the cruise is also included.
The subduction experiment : cruise report R/V Knorr : cruise number 138 leg XV : subduction 3 mooring recovery cruise, 13-30 June 1993

(Woods Hole Oceanographic Institution, 1993-12) Trask, Richard P. ; Galbraith, Nancy R. ; Robbins, Paul E. ; Ostrom, William M. ; Regier, Lloyd ; Pezzoli, Glenn ; McPhee, Neil M.

Subduction is the mechanism by which water masses formed in the mixed layer and near the surface of the ocean find their way into the upper thermocline. The subduction process and its underlying mechanisms were studied though a combination of Eulerian and Langrangian measurements of velocity, measurements of tracer distributions and hydrographic properties and modeling. An array of five surface moorings carrying meteorological and oceanographic instrumentation were deployed for a period of two years beginning in June 1991 as part of an Office of Naval Research (ONR) funded Subduction experiment. Three eight month deployments were planned. The moorings were deployed at 18°N 34°W, 18°N 22°W, 25.5°N 29°W, 33°N 22°W and 33°N 34°W. A Vector Averaging Wind Recorder (VAWR) and an Improved Meteorological Recorder (IMET) collected wind speed and wind direction, sea surface temperature, air temperature, short wave radiation, barometric pressure and relative humidity. The IMET also measured precipitation. The moorings were heavily instrumented below the surface with Vector Measuring Current Meters (VMCM) and single point temperature recorders. Expendable bathythermograph (XBT) data were collected and meteorological observations were made while transmitting between mooring locations. This report describes the work that took place during R/V Knorr cruise number 138 leg XV which was the fourth scheduled Subduction mooring cruise. During this cruise the moorings previously deployed for a third and final eight month period were recovered. This report includes a description of the moorings and instrumentation that were recovered, has information about the underway measurements (XBT and meteorological observations) that were made including plots of the data, and presents a chronology of the cruise events.
The Long Term Upper Ocean Study (Lotus) : cruise summary and hydrographic data report, Oceanus 119 - May 1982

(Woods Hole Oceanographic Institution, 1983-02) Trask, Richard P. ; Briscoe, Melbourne G.

OCEANUS cruise number 119 (6-14 May, 1982) was the seventh in a series of cruises to the Long Term Upper Ocean Study (LOTUS) area centered at 34°N, 70°W. During this cruise five moorings were set at the LOTUS site; four for the LOTUS experiment and one, a profiling current meter mooring, for C.S. Draper Labs - MIT. In addition an engineering mooring was set at 39°30'N, 70°W. Two XBT sections were made along 70°W between 40°N and 33°N during the trip to and from the LOTUS site. Five CTD stations were also completed in the LOTUS area. Part I of this report is a summary of the major cruise activities and part II presents the hydrographic data (CTD and XBT) collected during the cruise.
The Long Term Upper Ocean Study (Lotus) : cruise summary and hydrographic data report, Oceanus 129--October 1982

(Woods Hole Oceanographic Institution, 1983-08) Trask, Richard P. ; Briscoe, Melbourne G.

OCEANUS cruise number 129 (28 October-4 November, 1982) was the eighth in a series of cruises to the Long Term Upper Ocean Study (LOTUS) area centered at 34°N, 70°W. In the LOTUS area seven SOFAR floats were launched, two moorings were recovered (a LOTUS surface mooring and a C. S. Draper Labs profiling current meter mooring), and a surface mooring which replaced the one recovered was set. Seven CTD stations were also completed in the LOTUS area. Outside the LOTUS area a subsurface mooring was set in the Gulf Stream in cooperation with H. Bryden's (WHOI) Gulf Stream Observations project, and a WHOI engineering mooring at Site D was recovered, examined and redeployed. In addition several XBT sections were made, one along 70°W between 40°N and 34°N, a second surveyed a cold core ring discovered during the trip to the LOTUS area and a third was made in the vicinity of the Gulf Stream Observations mooring. Part I of this report is a summary of the major cruise activities and part II presents the hydrographic data (CTD and XBT) collected during the cruise.
The Long Term Upper Ocean Study (Lotus) : cruise summary and hydrographic data report : Endeavor 97, April 1983

(Woods Hole Oceanographic Institution, 1983-10) Trask, Richard P. ; Briscoe, Melbourne G.

ENDEAVOR cruise number 97 (8-19 April, 1983) was the ninth scheduled cruise to the Long Term Upper Ocean Study (LOTUS) area centered at 34°N, 70°W. During the cruise three LOTUS moorings (a near-surface and two subsurface moorings) deployed eleven months earlier were recovered and replaced by a nearly identical set of moorings. The new array will remain in the water during the final year of LOTUS field work. The LOTUS surface mooring, scheduled to be recovered during ENDEAVOR 97, had been partially recovered one month earlier after the mooring parted and drifted off station. The lower portion of the surface mooring which went to the bottom when the mooring failed was successfully recovered during ENDEAVOR 97. A new surface mooring replacing the one that parted and a C. S. Draper Labs profiling current meter mooring were also set during the cruise. Non-mooring work included deploying three satellite tracked drifter buoys and completing five CTD stations in the LOTUS area. Several inter-comparisons between shipborne meteorological sensors and similar sensors on the LOTUS surface buoy and the drifter buoys were made. An XBT section was also completed along 70°W between 40°N and 34°N. Part I of this report is a summary of the major cruise activities and part II presents the hydrographic data (CTD and XBT) collected during the cruise.
Pan American Climate Study (PACS) mooring recovery and deployment cruise report : R/V Thomas Thompson cruise number 73, 28 November to 26 December 1997

(Woods Hole Oceanographic Institution, 1998-08) Trask, Richard P. ; Weller, Robert A. ; Ostrom, William M. ; Way, Bryan S.

Three surface moorings were recovered and redeployed during R/V Thomas Thompson cruise number 73 in the eastern equatorial Pacific as pan of the Pan American Climate Study (PACS). PACS is a NOAA-funded study with the goal of investigating links between sea-surface temperature variability in the tropical oceans near the Americas and climate over the American continents. The three moorings were deployed near 125°W, spanning the strong meridional sea-surface temperature gradient associated with the cold tongue south of the equator and the warmer ocean north of the equator, near the northernmost, summer location of the Intertopical Convergence Zone. The moored array was deployed to improve the understanding of air-sea fluxes and of the processes that control the evolution of the sea surface temperature field in the region. Two surface moorings, located at 3°S, 125°W and lO°N, 125°W, belonging to the Upper Ocean Processes (UOP) Group at the Woods Hole Oceanographic Institution (WHOI), were recovered after being on station for eight months and redeployed. Two eight-month deployments were planned. A third mooring deployed at the equator and 128°W by the Ocean Circulation Group at the University of South Florida (USF) was also recovered and redeployed. The USF mooring, unfortunately, had to be recovered immediately following redeployment due to a problem with the buoy and instrumentation. The buoys of the two WHOI moorings were each equipped with meteorological instrumentation, including a Vector Averaging Wind Recorder (VAWR), and an Improved Meteorological (IMET) system. The WHOI moorings also carried Vector Measuring Current Meters, single point temperature recorders, and conductivity and temperature recorders located in the upper 200 meters of the mooring line. In addition to the instrumentation noted above, a variety of other instruments, including an acoustic current meter, acoustic doppler current meters, bio-optical instrument packages and an acoustic rain gauge, were deployed during the PACS field program. The USF mooring had an IMET system on the surface buoy and for oceanographic instrumentation, two RD Instruments acoustic doppler current profilers (ADCPs), single-point temperature recorders, and conductivity and temperature recorders. Conductivity-temperature-depth (CTD) profiles were made at each mooring site and during the transit between mooring locations. This report describes, in a general manner, the work that took place during R/V Thomas Thompson cruise number 73. A description of the WHOI moored array and instrumentation is provided. Details of the mooring designs and preliminary data from the CTD profies are included.
Cyclic fatigue testing of surface mooring hardware for the Arabian Sea mixed layer dynamics experiment

(Woods Hole Oceanographic Institution, 1995-12) Trask, Richard P. ; Weller, Robert A.

The Arabian Sea is strongly forced by monsoon winds. Surface moorings deployed in the Arabian Sea are exposed to high winds and large waves. The waves, generated by strong wind events, impose a dynamic load on all mooring components. The dynamic cycling of mooring components can be so severe that ultimate strength considerations are superseded by the fatigue properties of the standard hardware components. Concerns about all in-line mooring components and their fatigue endurance dictated the need for an independent series of cyclic fatigue tests. The components tested included shackles of various sizes and configurations, wire rope, instrument cages, chain, and a variety of interconnecting links such as weldless sling links and end links. The information gained from these tests was used in the design of the surface moorings deployed in the Arabian Sea by the Upper Ocean Processes group of the Woods Hole Oceanographic Institution. The results of the cyclic fatigue tests conducted in support of the Arabian Sea surface mooring design effort are presented in this report. Recommendations are made with regard to all in-line components for surface moorings where dynamic conditions might be encountered for extended periods. The fatigue test results from shackles, and sling links were compiled to generate an SIN diagram where the cyclic stress amplitude is plotted versus the number of cycles to failure. In addition, the wire rope test results were compiled with historical wire rope data from US steel to generate a SIN diagram for torque balanced 3x19 wire rope. These results can be used in conjunction with future design efforts.
Long Term Upper Ocean Study (Lotus) : a summary of the historical data and engineering test data

(Woods Hole Oceanographic Institution, 1982-12) Trask, Richard P. ; Briscoe, Melbourne G. ; Pennington, Nancy J.

Plans for the Long Term Upper Ocean Study evolved over several years. As the plans became more definite a two year period was devoted to engineering tests at the LOTUS site (34°N, 70°W). Many aspects of the proposed plans were implemented during this period in order to evaluate the performance of the equipment and instrumentation. This report presents a summary of the planning and testing periods up to but not including the first science deployments in May 1982. Historical data collected at the LOTUS site prior to the engineering tests and the data collected as part of the engineering tests are presented.
Arabian Sea mixed layer dynamics experiment data report

(Woods Hole Oceanographic Institution, 1997-07) Baumgartner, Mark F. ; Brink, Nancy J. ; Ostrom, William M. ; Trask, Richard P. ; Weller, Robert A. ; Dickey, Thomas D. ; Marra, John F.

The Arabian Sea is characterized by strong, large-scale atmospheric forcing during the summer (southwest) and winter (northeast) monsoons. To investigate air-sea interactions related to this unique surface forcing, a moored array was deployed from 15 October 1994 to 19 October 1995 just south of a region that experiences the climatological maximum winds during the summer monsoon. The array consisted of two Scripps Institution of Oceanography surface toroid buoys, two University of Washington subsurface moorings and a surface 3 m discus buoy deployed by the Woods Hole Oceanographic Institution (WHOI). The WHOI buoy carried redundant meteorological packages to measure wind speed and direction, air temperature, relative humidity, barometrc pressure, incoming short- and long-wave radiation and precipitation. Oceanographic instrumentation was deployed on the WHOI buoy's bridle and mooring line to collect time series of temperatue, salinity and velocity at various depths. Four multi-varable moored systems (MVMS) were also deployed along the mooring line by the Lamont-Doherty Earth Observatory and the University of California at Santa Barbara to record both bio-optical and physical parameters. This report describes the instrumentation deployed on the WHOI buoy and the processing and editing of the returned data. The data are then summarized in graphical and tabular formats.
TOGA COARE mooring deployment, mooring check-out and mooring recovery cruises : R/V Wecoma 7 October-1 November 1992, R/V Le Noriot 2 December-15 December 1992, R/V Wecoma 27 February-11 March 1993

(Woods Hole Oceanographic Institution, 1993-05) Plueddemann, Albert J. ; Trask, Richard P. ; Ostrom, William M. ; Weller, Robert A. ; Way, Bryan S. ; Anderson, Steven P. ; Bogue, Neil M. ; Shilingford, J. ; Hill, S.

The Tropical Ocean - Global Atmosphere Coupled Ocean - Atmosphere Response Experiment (TOGA COARE) was conceived in order to improve understanding of the principal processes responsible for coupling of the ocean and atmosphere in the western Pacific warm pool region. Field work for TOGA COARE was concentrated in an Intensive Flux Array (IFA) and included a variety of atmospheric and oceanic platforms. The Upper Ocean Processes Group (UOPG) was involved in TOGA COARE through the preparation, deployment, and recovery of a heavily instrumented surface mooring for the observation of air-sea fluxes and oceanic temperature, salinity, and currents in the upper 300 m. The mooring was deployed at 1°,45.27'S, 155°,59.73'E on 21 October 1992 in 1744 m of water. An instrument check-out cruise was undertaken in December of 1992 in order to evaluate the meteorological systems on the buoy. The mooring was recovered on 4 March 1993. This report describes mooring deployment operations, the instrument check-out cruise, and the mooring recovery. UOPG personnel also assisted with the deployment and recovery of five other moorings as a part of the COARE IFA and these operations are discussed.
Mechanical and operational details of a Neil Brown Instrument Systems internally recording conductivity, temperature, depth (CTD) profiler

(Woods Hole Oceanographic Institution, 1981-09) Trask, Richard P.

The purpose of this report is to discuss the use of a Neil Brown Instrument Systems internal recording CTD. The components of the instrument are described along with the advantages and disadvantages of the internal recording system. Calibration of the pressure and temperature sensors in the laboratory and the method used for in situ calibration of the conductivity sensor is described. A step by step description of the use of the CTD/IR at sea is also included.

Trask Richard P.

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