U.S. GLOBEC Georges Bank long-term moored program : part 1 - mooring configuration

Irish, James D.; Sieh, Kerry; Fucile, Paul D.; Beardsley, Robert C.; Lord, Jeffrey; Brink, Kenneth H.

doi:10.1575/1912/510

Cited by 3 publications

(5 citation statements)

References 8 publications

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“…Finally, bottom pressure was measured from a separate bottom instrument frame that isolated the sensor from contaminating mooring motion. The SF instrument deployment and data return are summarized in Figure 2, and by Irish et al (2005).…”

Section: Array Design and The Moored Data Setmentioning

confidence: 99%

“…Finally, a lightly instrumented mooring (CR) was deployed briefly at the top (crest) of the Bank in 43 m of water, but the resulting data are not used here. The NEP and CR data return is summarized in Figure 2 and by Irish et al (2005).…”

Section: Array Design and The Moored Data Setmentioning

confidence: 99%

“…The overall GLOBEC moored time series data set is described in greater detail by Irish et al (2005Irish et al ( , 2006.…”

Section: Array Design and The Moored Data Setmentioning

confidence: 99%

“…Aspects of the field program included multiple, roughly monthly, hydrographic and shipboard acoustic current surveys (e.g., Flagg and Dunn, 2003), extended drifter studies (e.g., Brink et al, 2003), focused process studies (such as of the onset of springtime stratification, e.g., Lentz et al, 2003a), and a moored array which is the subject of this study. The GLOBEC long-term moored array (Irish et al, 2005) was intended to provide continuous Eulerian time series measurements (during the seasons of biological interest) of currents, stratification and water mass properties. From a broader perspective, the time series were intended to document any anomalies that could correlate with biological shifts.…”

Section: Introductionmentioning

confidence: 99%

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Long-term moored array measurements of currents and hydrography over Georges Bank: 1994–1999

Brink

Beardsley

Limeburner

et al. 2009

Progress in Oceanography

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Abstract:In conjunction with the GLOBEC (Global Ocean Ecosystems Dynamics) program, measurements of moored currents, temperature and salinity were made during 1994-1999 at locations in 76 m of water along the Southern Flank of Georges Bank and at the Northeastern Peak. The measurements concentrate on the biologically crucial winter and spring periods, and coverage during the fall is usually poorer.Current time series were completely dominated by the semidiurnal M 2 tidal component, while other tidal species (including the diurnal K 1 component) were also important. There was a substantial wind-driven component of the flow, which was linked, especially during the summer, to regional-scale response patterns. The current response at the Northeast Peak was especially strong in the 3-4 day period band, and this response is shown to be related to an amplifying topographic wave propagating eastward along the northern flank. Monthly mean flows on the southern flank are southwestward throughout the year, but strongest in the summertime. The observed tendency for summertime maximum along-bank flow to occur at depth is rationalized in terms of density gradients associated with a near-surface freshwater tongue wrapping around the Bank.Temperature and salinity time series demonstrate the presence, altogether about 25% of the time, of a number of intruding water masses. These intrusions could last anywhere from a couple days up to about a month. The sources of these intrusions can be broadly classified as the Scotian Shelf (especially during the winter), the Western Gulf of Maine (especially during the summer), and the deeper ocean south of Georges Bank (throughout the year). On longer time scales, the temperature variability is dominated by seasonal temperature changes. During the spring and summer, these changes are balanced by local heating or cooling, but wintertime cooling involves advective lateral transports as well. Salinity variations have weak, if any, seasonal variability, but are dominated by interannual changes that are related to regional-or basin-scale changes.All considered, Georges Bank temperature and salinity characteristics are found to be highly dependent on the surrounding waters, but many questions remain, especially in terms of whether intrusive events leave a sustained impact on Bank waters.Regional Index Terms: Northeast US shelf; Gulf of Maine; Georges Bank

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Section: Array Design and The Moored Data Setmentioning

confidence: 99%

Section: Array Design and The Moored Data Setmentioning

confidence: 99%

“…The overall GLOBEC moored time series data set is described in greater detail by Irish et al (2005Irish et al ( , 2006.…”

Section: Array Design and The Moored Data Setmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Long-term moored array measurements of currents and hydrography over Georges Bank: 1994–1999

Brink

Beardsley

Limeburner

et al. 2009

Progress in Oceanography

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“…In that time the number of currentmeter records of more than 6-month duration in the MAB has increased substantially as a result of several major field programs including the Nantucket Shoals Flux Experiment (NSFE) (Beardsley et al 1985), the Shelf Edge Exchange Processes (SEEP-I and SEEP-II) studies (Walsh et al 1988;Aikman et al 1988;Biscaye et al 1994;Shaw et al 1994), the Coastal Mixing and Optics (CMO) study , the Minerals Management Service Hatteras Study off North Carolina (Churchill and Berger 1998), and the Global Ocean Ecosystems Dynamics (GLOBEC) Georges Bank study (Werner et al 2003;Irish et al 2005). Additional long-term current observations over the inner shelf have been made at the Martha's Vineyard Coastal Observatory (MVCO) (Austin et al 2002) and the Long-term Ecosystem Observatory (LEO-15) off New Jersey (Schofield et al 2002).…”

Section: Introductionmentioning

confidence: 99%

Observations and a Model of the Mean Circulation over the Middle Atlantic Bight Continental Shelf

Lentz

2008

Journal of Physical Oceanography

160

239

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Analyses of current time series longer than 200 days from 33 sites over the Middle Atlantic Bight continental shelf reveal a consistent mean circulation pattern. The mean depth-averaged flow is equatorward, alongshelf, and increases with increasing water depth from 3 cm s Ϫ1 at the 15-m isobath to 10 cm s Ϫ1at the 100-m isobath. The mean cross-shelf circulation exhibits a consistent cross-shelf and vertical structure. The near-surface flow is typically offshore (positive, range Ϫ3 to 6 cm s Ϫ1). The interior flow is onshore and remarkably constant (Ϫ0.2 to Ϫ1.4 cm s Ϫ1). The near-bottom flow increases linearly with increasing water depth from Ϫ1 cm s Ϫ1 (onshore) in shallow water to 4 cm s Ϫ1 (offshore) at the 250-m isobath over the slope, with the direction reversal near the 50-m isobath.A steady, two-dimensional model (no along-isobath variations in the flow) reproduces the main features of the observed circulation pattern. The depth-averaged alongshelf flow is primarily driven by an alongshelf pressure gradient (sea surface slope of 3.7 ϫ 10 Ϫ8 increasing to the north) and an opposing mean wind stress that also drives the near-surface offshore flow. The alongshelf pressure gradient accounts for both the increase in the alongshelf flow with water depth and the geostrophic balance onshore flow in the interior. The increase in the near-bottom offshore flow with water depth is due to the change in the relative magnitude of the contributions from the geostrophic onshore flow that dominates in shallow water and the offshore flow driven by the bottom stress that dominates in deeper water.

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CO<inf>2</inf> gas exchange and ocean acidification studies in the coastal Gulf of Maine

Irish

Vandemark

Shellito

et al. 2010

Oceans 2010 MTS/Ieee Seattle

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U.S. GLOBEC Georges Bank long-term moored program : part 1 - mooring configuration

Cited by 3 publications

References 8 publications

Long-term moored array measurements of currents and hydrography over Georges Bank: 1994–1999

Long-term moored array measurements of currents and hydrography over Georges Bank: 1994–1999

Observations and a Model of the Mean Circulation over the Middle Atlantic Bight Continental Shelf

CO<inf>2</inf> gas exchange and ocean acidification studies in the coastal Gulf of Maine

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