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  • 1
    Publication Date: 2022-05-26
    Description: 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.
    Description: Funding was provided by the National Oceanic and Atmospheric Administration under Contract No. NA66GP0130.
    Keywords: Air-sea interaction ; Moored instrument measurements ; PACS: eastern tropical Pacific ; Roger Revelle (Ship) Cruise Genesis 4
    Repository Name: Woods Hole Open Access Server
    Type: Technical Report
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  • 2
    Publication Date: 2022-05-26
    Description: 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.
    Description: Funding was provided by the Office of Naval Research through Grant No. NOOOI4-94-1-0161.
    Keywords: Air-sea interaction ; Moored instruments ; Arabian Sea ; Thomas G. Thompson (Ship) Cruise TN52
    Repository Name: Woods Hole Open Access Server
    Type: Technical Report
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  • 3
    Publication Date: 2022-05-26
    Description: 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.
    Description: Funding was provided by the Office of Naval Research under Grant No. N00014-94-1-0161.
    Keywords: Air-sea interaction ; Moored instruments ; Arabian Sea ; Thomas G. Thompson (Ship) Cruise TN40
    Repository Name: Woods Hole Open Access Server
    Type: Technical Report
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  • 4
    Publication Date: 2022-05-26
    Description: The Northwest Tropical Atlantic Station (NTAS) was established to address the need for accurate air-sea flux estimates and upper ocean measurements in a region with strong sea surface temperature anomalies and the likelihood of significant local air–sea interaction on interannual to decadal timescales. The approach is to maintain a surface mooring outfitted for meteorological and oceanographic measurements at a site near 15°N, 51°W by successive mooring turnarounds. These observations will be used to investigate air–sea interaction processes related to climate variability. Deployment of the first (NTAS-1), second (NTAS-2) and third (NTAS-3) moorings were documented in previous reports (Plueddemann et al., 2001; 2002; 2003). This report documents recovery of the NTAS-3 mooring and deployment of the NTAS-4 mooring at the same site. Both moorings used 3-meter discus buoys as the surface element. These buoys were outfitted with two Air–Sea Interaction Meteorology (ASIMET) systems. Each system measures, records, and transmits via Argos satellite the surface meteorological variables necessary to compute air–sea fluxes of heat, moisture and momentum. The upper 150 m of the mooring line were outfitted with oceanographic sensors for the measurement of temperature and velocity. The mooring turnaround was done on the NOAA ship Ronald H. Brown, Cruise RB-04-01, by the Upper Ocean Processes Group of the Woods Hole Oceanographic Institution. The cruise took place between 12 and 25 February 2004. The NTAS-3 buoy was found adrift and recovered on 19 February at 14°53.7’N, 51°22.8’W. Deployment of the NTAS-4 mooring was on 21 February at approximately 14°44.4’N, 50°56.0’W in 5038 m of water. A 30-hour intercomparison period followed, after which dragging operations to recover the lower portion of the NTAS-3 mooring commenced. This report describes these operations, as well as other work done on the cruise and some of the pre-cruise buoy preparations.
    Description: Funding was provided by the National Oceanic and Atmospheric Administration under Grant No. NA17RJ1223 and the Cooperative Institute for Climate and Ocean Research (CICOR).
    Keywords: Air-sea interaction ; Tropical Atlantic ; Moored instrumentation ; Ronald H. Brown (Ship) Cruise RB04-01
    Repository Name: Woods Hole Open Access Server
    Type: Technical Report
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  • 5
    Publication Date: 2022-05-26
    Description: The Woods Hole Oceanographic Institution (WHOI) Hawaii Ocean Timeseries (HOT) Site (WHOTS), 100 km north of Oahu, Hawaii, is intended to provide long-term, high-quality air-sea fluxes as a coordinated part of the HOT program and contribute to the goals of observing heat, fresh water and chemical fluxes at a site representative of the oligotrophic North Pacific Ocean. This report documents recovery of the WHOTS-1 mooring, deployed in August 2004 near 22.75°N, 158°W, and deployment of the WHOTS-2 mooring at the same site. Both moorings were outfitted with Air-Sea Interaction Meteorology (ASIMET) systems to measure, record, and transmit the surface meteorological variables necessary to compute air-sea fluxes of heat, moisture and momentum. In cooperation with R. Lukas of the University of Hawaii, the upper 155 m of the moorings were outfitted with oceanographic sensors for the measurement of temperature, conductivity and velocity. The WHOTS mooring turnaround was done on the Scripps Institution of Oceanography Ship Melville, Cruise TUIM-10MV. The cruise took place between 23 and 30 July 2005.
    Description: Funding was provided by the National Oceanic and Atmospheric Administration under Grant No. NA17RJ1223 and the Cooperative Institute for Climate and Ocean Research (CICOR).
    Keywords: Air-sea interaction ; Tropical Atlantic ; Moored instrumentation ; Melville (Ship) Cruise TUIM-10MV
    Repository Name: Woods Hole Open Access Server
    Type: Technical Report
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  • 6
    Publication Date: 2022-05-26
    Description: Numerical weather forecasting model products were acquired for use in the Coastal Mixing and Optics (CMO) Experiment to augment in situ observations of meteorological parameters (e.g., wind speed and direction, air temperature and relative humidity) at a moored array of buoys in the Middle Atlantic Bight. In this report, the Eta and Rapid Update Cycle (RUC) regional models are described and the two methods of acquisition via the Internet, the Internet Data Distribution (IDD) system and file transfer (FTP) from the NOAA Information Center's data server, are discussed. Processing and archival of the model data are also addressed. Data from the CMO central mooring and six National Data Buoy Center (NDBC) buoys in the Middle Atlantic bight were used to evaluate the accuracy of the model products. Comparisons between model and in situ wind speed, wind direction, barometrc pressure, air temperature and sea surface temperature were possible for all seven of the buoys. Since no moisture measurement was made from the NDBC buoys, comparisons of relative and specific humidity were only possible at the CMO buoy. Sensible and latent heat fluxes and global (net) radiation from the models were compared to estimates of heat fluxes and net radiation from the CMO central buoy.
    Description: Funding provided by the Office of Naval Research under Contract No. NOO014-95-1-0339.
    Keywords: Air-sea interaction ; Moored data ; Numerical weather forecasting models ; Coastal Mixing and Optics (CMO) Experiment
    Repository Name: Woods Hole Open Access Server
    Type: Technical Report
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  • 7
    Publication Date: 2022-05-26
    Description: 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.
    Description: Funding was provided by the Office of Naval Research under contract N00014-90-J-1490.
    Keywords: Air-sea interaction ; Moored instruments ; Subduction ; Charles Darwin (Ship) Cruise CD73
    Repository Name: Woods Hole Open Access Server
    Type: Technical Report
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  • 8
    Publication Date: 2022-05-26
    Description: 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.
    Description: Funding provided by the National Science Foundation under grants OCE-9110554 and OCE-9110559.
    Keywords: Air-sea interaction ; Moored data ; Western Pacific warm pool ; Wecoma (Ship) Cruise WE92-10A ; Wecoma (Ship) Cruise WE93-02A ; le Noroit (Ship) Cruise
    Repository Name: Woods Hole Open Access Server
    Type: Technical Report
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  • 9
    Publication Date: 2022-05-26
    Description: The Marine Light - Mixed Layer experiment took place in the sub-Arctic North Atlantic ocean, approximately 275 miles south of Reykjavik, Iceland. The field program included a central surface mooring to document the temporal evolution of physical, biological and optical properties. The surface mooring was deployed at approximately 59°N, 21°W on 29 April 1991 and recovered on 6 September 1991. The Upper Ocean Processes Group of the Woods Hole Oceanographic Institution was responsible for design, preparation, deployment, and recovery of the mooring. The Group's contrbution to the field measurements included four different types of sensors: a meteorological observation package on the surface buoy, a string of 15 temperature sensors along the mooring line, an acoustic Doppler current profiler, and four instruments for measuring mooring tension and accelerations. The observations obtained from the mooring are sufficient to describe the air-sea fluxes and the local physical response to surface forcing. The objective in the analysis phase will be to determine the factors controlling this physical response and to work towards an understanding of the links among physical, biological, and optical processes. This report describes the deployment and recovery of the mooring, the meteorological data, and the subsurface temperature and current data.
    Description: Funding was provided by the Office of Naval Research under Contract N00014-89-J-1683.
    Keywords: Air-sea interaction ; Upper ocean structure ; Re-stratification ; Endeavor (Ship: 1976-) Cruise EN224 ; Endeavor (Ship: 1976-) Cruise EN227
    Repository Name: Woods Hole Open Access Server
    Type: Technical Report
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  • 10
    Publication Date: 2022-05-26
    Description: The surface mooring component of the NOAA Pan American Climate Study (PACS) took place from April 1997 to September 1998 in the eastern tropical Pacific. PACS was 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. Two air-sea interaction surface moorings were deployed along 125°W, spanning a strong meridional sea-surface temperature gradient. One mooring site was located in the cold tongue south of the equator, and the other site was in the region of warm ocean found north of the equator, near the northernmost summer location of the Intertropical Convergence Zone. The moorings were deployed to improve our understanding of air-sea fluxes and the procsses that control the evolution of the sea surface temperature field in the region. Four air-sea interaction buoys were deployed to occupy two sites for a period of 17 months. The sites were along 125°W near 3°S and 10°N. The Upper Ocean Processes Group at WHOI deployed the first two moorings in April 1997. These moorings were replaced with a second pair of moorings in December 1997. The final recovery occurred in September 1998. Each of these buoys on these moorings were equipped with meteorological instrumentation, including a Vector Averaging Wind Recorder (VAWR) and an Improved METeorological (IMET) system. The moorings also carried Vector Measuring Current Meters (VMCMS), single point temperature recorders and a few conductivity sensors on the mooring line to monitor the upper 200m of the ocean. In addition to the traditional instruments, several other experimental instruments were deployed with limited success on the mooring line including acoustic current meters, acoustic rain gauges and bio-optical instrument packages. This report describes the instrumentation deployed on the PACS surface moorings, along with information on the processing and quality control of the returned data. It presents a detailed overview of the meteorological and physical oceanographic data including time series plots, statistics and spectra of key parameters. It also presents analysis of the estimated air-sea heat, moisture and momentum fluxes.
    Description: Funding was provided by the National Oceanic and Atmospheric Administration Contract No. NA96GP0428.
    Keywords: Air-sea interaction ; Moored instrument measurements ; PACS: eastern tropical Pacific ; Roger Revelle (Ship) Cruise ; Thomas G. Thompson (Ship) Cruise
    Repository Name: Woods Hole Open Access Server
    Type: Technical Report
    Format: 7428827 bytes
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