Index Catalog // ScholarsArchive@OSU

Creator:: Dale, Andrew C. and Barth, John A.
Abstract:: Upwelling jets flow alongshore in approximate geostrophic balance with the onshore pressure gradient induced by coastal upwelling. Observations of such jets have shown that they often move offshore downstream of capes, leaving a pool of upwelled water inshore. Comparisons are made between this behavior and the hydraulic transition of a...
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Full Text:: , b(y, t), W(y)) and pressure p0(y, b(y, t), W(y)) satisfy ]y ]y ]p0 0 01 y 1 5 0, (39)0]t ]y ]y

Creator:: Barth, John A., Bogucki, Darek, Pierce, Stephen D., and Kosro, P. Michael, 1951-
Abstract:: Evidence for secondary circulation associated with a shelfbreak front is obtained from a high‐resolution, cross‐shelf section of hydrographic, optical and velocity fields. Convergence in the bottom boundary layer on the inshore side of the front and subsequent upwelling into the interior is evident by a mid‐water region of suspended bottom...
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Full Text:: extending to within 35 m of the surface, 80 m above bottom. Downwelling on the off- shore side of the

Creator:: Aguirre, Catalina, Pizarro, Oscar, Strub, Paul T., Garreaud, Rene, and Barth, John A.
Abstract:: The seasonal cycle of the near-surface circulation off central Chile was analyzed using satellite altimetry and an oceanic model. To evaluate the role of the wind stress curl on the circulation we performed two identical simulations except for the wind-forcing: the "control run" used long-term monthly mean wind stress and...
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Full Text:: observations at OCEMOS (�30°S–73.3°W) and Concepción (�37°S–78.4°W). Horizontal lines indicate 80% and 95

Creator:: Barth, John A., Hebert, Dave, Dale, Andrew C., and Ullman, David S.
Abstract:: By mapping the three-dimensional density field while simultaneously tracking a subsurface, isopycnal float, direct observations of upwelling along a shelfbreak front were made on the southern flank of Georges Bank. The thermohaline and bio-optical fields were mapped using a towed undulating vehicle, and horizontal velocity was measured with a shipboard...
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Full Text:: float was released near the foot of the shelfbreak front (95–100-m isobath) and moved 15 km seaward as

Creator:: Mazzini, Piero L. F., Risien, Craig M., Barth, John A., Pierce, Stephen D., Erofeev, Anatoli, Dever, Edward P., Kosro, P. Michael, Levine, Murray D., Shearman, R. Kipp, and Vardaro, Michael F.
Abstract:: From mid-May to August 2011, extreme runoff in the Columbia River ranged from 14,000 to over 17,000 m³/s, more than two standard deviations above the mean for this period. The extreme runoff was the direct result of both melting of anomalously high snowpack and rainfall associated with the 2010–2011 La Niña....
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Full Text:: with monthly salinity minima (r = 0.44, 95% confidence level of 0.39), and a regression is shown in

Creator:: Kirincich, Anthony R. and Barth, John A.
Abstract:: The spatial and temporal variability of inner-shelf circulation along the central Oregon coast during the 2004 upwelling season is described using a 70-km-long array of moorings along the 15-m isobath. Circulation at three stations located onshore of a submarine bank differed from that of a station north of the bank,...
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Full Text:: given were tested for significance using a 95% confidence interval as noted in the text and table

Creator:: Kirincich, Anthony R., Lentz, Steven J., and Barth, John A.
Abstract:: Recent work by S. Lentz et al. documents offshore transport in the inner shelf due to a wave-driven return flow associated with the Hasselmann wave stress (the Stokes–Coriolis force). This analysis is extended using observations from the central Oregon coast to identify the wave-driven return flow present and quantify the...
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Full Text:: - erages composed of 40 (80) pings, using a ping rate of 1.5 s, and 0.5- (1) m vertical bin spacing. For

Creator:: Barth, John A., Menge, Bruce A., Lubchenco, Jane, Chan, Francis, Bane, John M., Kirincich, Anthony R., McManus, Margaret A., Nielsen, Karina J., Pierce, Stephen D., and Washburn, Libe
Abstract:: Wind-driven coastal ocean upwelling supplies nutrients to the euphotic zone near the coast. Nutrients fuel the growth of phytoplankton, the base of a very productive coastal marine ecosystem [Pauly D, Christensen V (1995) Nature 374:255–257]. Because nutrient supply and phytoplankton biomass in shelf waters are highly sensitive to variation in...
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Full Text:: 2005 (F), the long-term climatological mean (E) with 95% C.I. (bars), and 2005 anomalies from the mean

Creator:: Kirincich, Anthony R. and Barth, John A.
Abstract:: The event-scale variability of across-shelf transport was investigated using observations made in 15 m of water on the central Oregon inner shelf. In a study area with intermittently upwelling-favorable winds and significant density stratification, hydrographic and velocity observations show rapid across-shelf movement of water masses over event time scales of...
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Full Text:: time series were tested for significance using the 95% confidence interval for the level of

Creator:: Pierce, Stephen D., Barth, John A., Thomas, Rebecca E., and Fleischer, Guy W.
Abstract:: In the northern California Current, the onset of the 2005 upwelling season was five weeks later than usual, and well established upwelling with a cold surface signature did not occur until about seven weeks after this. As part of the joint US-Canada Pacific hake survey, from 14–16 July 2005 we...
Resource Type:: Article
Full Text:: previous years. We find that 80% of July surface layer (0–30 m) interannual temperature variance can be

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