An official website of the United States government
The Irminger Sea Profiler Mooring is co-located with Irminger Sea Surface Mooring at the Apex site. Two identical Flanking Moorings make up the equidistant sides of a triangle of Moorings (20 km) from the Apex site. The Profiler Mooring is located in 2,800 meters of water southeast of Greenland in the North Atlantic. The triangular configuration moorings provide unique spatial array through which instruments fixed to moorings continuously collect data through time and gliders sample the area between the moorings. The Irminger Sea site is one of four high latitude open ocean locations in the OOI that provide observations to gain better insight into global ocean circulation and climate.\nThe Irminger Sea Profiler Mooring contains one Wire-Following Profiler that houses instrumentation. The Wire-Following Profiler moves through the water column along the mooring riser, continuously sampling ocean characteristics at a high vertical resolution over a specified depth interval (240-2,400 meters).
more »
« less
Near-full-depth profile observations of water properties and currents at four deep-ocean sites
The Ocean Observatory Initiative (OOI) funded by the U.S. National Science Foundation established four deep ocean observing sites between summer 2013 and spring 2015: Argentine Basin (42˚ 58.9’ S, 42˚ 29.9’ W, water depth 5200 m), Southern Ocean (54 ˚ 28.1’ S, 89˚ 22.1’ W, 4800 m), Station Papa (50˚ 4.2’ N, 144˚ 47.9 W, 4219 m), and Irminger Sea (59˚ 58.5’ N, 39 ˚ 28.9’ W, 2800 m). Each site was instrumented with four closely-spaced moorings of various design supporting a variety of sensors. As no single OOI mooring in these arrays provides temperature, salinity and horizontal velocity information over the full water column, observations from two or more moorings were combined to produce vertical profiles at ½-dbar vertical resolution of sea water temperature, salinity, east and north velocity and vertical displacement. These profile data are reported here.
more »
« less
- Award ID(s):
- 2244833
- PAR ID:
- 10627730
- Publisher / Repository:
- Woods Hole Oceanographic Institution
- Date Published:
- Format(s):
- Medium: X
- Sponsoring Org:
- National Science Foundation
More Like this
-
-
The Ocean Observatories Initiative (OOI) Coastal Pioneer Mooring Array recorded hydrographic, meteorological, and bulk air-sea flux variables at a variety of moorings across the Southern New England shelfbreak front between late 2014 and November 2022. Here, we provide low-level quality-controlled one- to two-dimensional time series datasets from all OOI Coastal Pioneer Moorings on a uniform spatio-temporal grid, covering the timeframe 2015-01-01 to 2022-06-01. Hydrography data (temperature T, salinity S, pressure P, and potential density (p=0)) is either provided as i) one-dimensional time series or ii) two-dimensional pressure-time data series: i) The static surface buoys, near-surface instrument frames (NSIF), and multi-function bottom nodes (MFBN) of all three surface moorings cover the surface and bottom boundary layer, respectively, and lead to one-dimensional time series at roughly constant pressure levels. ii) The mid-range water column is covered by the Array’s profiler moorings leading to interpolated two-dimensional data varying across pressure and time. Meteorological variables (wind at 3m height, sea level pressure, sea surface humidity, shortwave and longwave radiation, and precipitation) are measured by the three surface buoys. Remaining air-sea buoyancy fluxes are inferred from bulk formulae using COARE3.5 (Edson et al., 2013). The input data is published on the OOI Data Explorer ERDDAP server (erddap.dataexplorer.oceanobservatories.org) and publicly available for download. The Ocean Observatory Initiative (OOI) is a major facility fully funded by the National Science Foundation (NSF) under Cooperative Agreement No. 1743430 and comes with its own conditions for data usage (https://oceanobservatories.org/wp-content/uploads/2022/12/1102-00020_Data_User_Terms_Conditions_OOI_2019-01-02_Ver_2-00.pdf; May 13, 2022).more » « less
-
The highly biologically productive northern California Current, which includes the Oregon continental shelf, is an archetypal eastern boundary region with summertime upwelling driven by prevailing equatorward winds and wintertime downwelling driven by prevailing poleward winds. Between 1960 and 1990, monitoring programs and process studies conducted off the central Oregon coast advanced the understanding of many oceanographic processes, including coastal trapped waves, seasonal upwelling and downwelling in eastern boundary upwelling systems, and seasonal variability of coastal currents. Starting in 1997, the U.S. Global Ocean Ecosystems Dynamics – Long Term Observational Program (GLOBEC-LTOP) continued those monitoring and process study efforts by conducting routine CTD (Conductivity, Temperature, and Depth) and biological sampling survey cruises along the Newport Hydrographic Line (NHL; 44.652°N, 124.1 – 124.65°W), located west of Newport, Oregon. Additionally, GLOBEC-LTOP maintained a mooring slightly south of the NHL, nominally at 44.64°N, 124.30°W, on the 81-meter isobath. This location is referred to as NH-10, as it is located 10 nautical miles or 18.5 km west of Newport. A mooring was first deployed at NH-10 in August 1997. This subsurface mooring collected water column velocity data using an upward-looking acoustic Doppler current profiler. A second mooring with a surface expression was deployed at NH-10 starting in April 1999. This mooring included velocity, temperature and conductivity measurements throughout the water column as well as meteorological measurements. GLOBEC-LTOP and the Oregon State University (OSU) National Oceanographic Partnership Program (NOPP) provided funding for the NH-10 moorings from August 1997 to December 2004. Since June 2006, the NH-10 site has been occupied by a series of moorings operated and maintained by OSU with funding from the Oregon Coastal Ocean Observing System (OrCOOS), the Northwest Association of Networked Ocean Observing Systems (NANOOS), the Center for Coastal Margin Observation & Prediction (CMOP), and most recently the Ocean Observatories Initiative (OOI). While the objectives of these programs differed, each program contributed to long-term observing efforts with moorings routinely measuring meteorological and physical oceanographic variables. This article provides a brief description of each of the six programs, their associated moorings at NH-10, and our efforts to combine over twenty years of temperature, practical salinity, and velocity data into one coherent, hourly averaged, quality-controlled data set. Additionally, the data set includes best-fit seasonal cycles calculated at a daily temporal resolution for each variable using harmonic analysis with a three-harmonic fit to the observations.more » « less
-
The Irminger Sea array has two identical Flanking Moorings that make up the equidistant sides of a triangle of Moorings (20 km) from the co-located Profiler and Surface Moorings. They are located in 2,800 meters of water southeast of Greenland in the North Atlantic. The triangular configuration moorings provide unique spatial array through which instruments fixed to moorings continuously collect data through time and gliders sample the area between the moorings. The Irminger Sea site is one of four high latitude open ocean locations in the OOI that provide observations to gain better insight into global ocean circulation and climate.\nLike other Flanking Subsurface Moorings, the Irminger Sea Flanking Subsurface Moorings contain instruments fixed at specific depths along the mooring riser throughout the water column to a depth of 2,600 meters. The flotation buoy for these subsurface moorings is located 30 meters below the sea surface. As they have no surface expression, these moorings communicate and send data to shore via an acoustic link to nearby gliders.more » « less
-
The Irminger Sea array has two identical Flanking Moorings that make up the equidistant sides of a triangle of Moorings (20 km) from the co-located Profiler and Surface Moorings. They are located in 2,800 meters of water southeast of Greenland in the North Atlantic. The triangular configuration moorings provide unique spatial array through which instruments fixed to moorings continuously collect data through time and gliders sample the area between the moorings. The Irminger Sea site is one of four high latitude open ocean locations in the OOI that provide observations to gain better insight into global ocean circulation and climate.\nLike other Flanking Subsurface Moorings, the Irminger Sea Flanking Subsurface Moorings contain instruments fixed at specific depths along the mooring riser throughout the water column to a depth of 2,600 meters. The flotation buoy for these subsurface moorings is located 30 meters below the sea surface. As they have no surface expression, these moorings communicate and send data to shore via an acoustic link to nearby gliders.more » « less
