Index Catalog // ScholarsArchive@OSU

Creator:: Roperch, Pierrick and Duncan, Robert A.
Abstract:: We report the behavior of the earth's magnetic field for a transition recorded in lavas at the volcanic island of Huahine in French Polynesia, south-central Pacific Ocean. Detailed intermediate fields are observed that record an apparent N-N excursion. The available K-Ar ages indicate that most volcanic rocks of the southern...
Resource Type:: Article
Full Text:: Zijl et al., 1962; Clement and Kent, 1984; Hoffman, 1986] and new data are necessary to provide

Creator:: Chauvin, Annick, Roperch, Pierrick, and Duncan, Robert A.
Abstract:: A volcanic sequence almost 700 meters thick has been sampled in the Punaruu valley on the island of Tahiti, southern central Pacific Ocean. Detailed paleomagnetic results have been obtained from 123 sites. Three reversals are recorded in this sequence. Age determinations (K-Ar) indicate that the youngest reversal corresponds to the...
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Full Text:: number 89JB03452 0148-0227/90/89JB-03452505.00 symmetry were then proposed by Hoffman [1977] and

Creator:: Ersek, Vasile, Mix, Alan C., and Clark, Peter U.
Abstract:: We examine the relation between δ¹⁸O in rainwater collected in southwestern Oregon and climate variables including temperature, parcel trajectory, precipitation amount, and specific humidity. Local surface air temperature at the time of sample collection explains a large proportion of δ¹⁸O variability, suggesting that paleoclimatic archives that are related to rainfall...
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Full Text:: precipitation data. We also thank Jeremy Shakun for help- ing with the initial setup of the trajectory model

Creator:: Haas, Kevin A., Svendsen, I. A., Haller, Merrick C., and Zhao, Qun
Abstract:: The focus of the paper is the analysis of the flow in rip current systems generated by channels in longshore bars on a beach. The horizontal variations of rip current systems are described through the use of the quasi-three-dimensional nearshore circulation model SHORECIRC. Model predictions are compared to laboratory measurements...
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Full Text:: S0ab � Z z �ho Tabdz " # þ t S a r � t B a r ; ð8Þ Figure 1. Definition sketch. 10 - 2 HAAS ET

Creator:: Twohy, Cynthia, Petters, Markus D., Snider, Jefferson R., Stevens, Bjorn, Tahnk, William, Wetzel, Melanie, Russell, Lynn, and Burnet, Frédéric
Abstract:: Data from nine stratocumulus clouds in the northeastern Pacific Ocean were analyzed to determine the effect of aerosol particles on cloud microphysical and radiative properties. Seven nighttime and two daytime cases were included. The number concentration of below-cloud aerosol particles (> 0.10 μm diameter) was highly correlated with cloud droplet...
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Full Text:: entrainment velocities ranged from about 0.3 to 0.7 m s�1 [Faloona et al., 2005]. [7] Each research flight

Creator:: Thomas, Christoph, Law, Beverly E., Irvine, James, Martin, Jonathan, Pettijohn, J. Cory, and Davis, Kent J.
Abstract:: We analyzed 7 years (2002–2008) of micrometeorological and concurrent biological observations of carbon and water fluxes at a mature ponderosa pine forest in central Oregon in a semiarid climate. We sought to evaluate the extent that gross primary productivity, net ecosystem exchange, ecosystem respiration, net primary productivity, net ecosystem productivity,...
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Full Text:: ) were carried out at the top of the main meteorological tower 32 m agl at a sampling rate of 10 s and

Creator:: Landry, Michael R., Brown, Susan L., Selph, Karen E., Abbott, Mark R., Letelier, Ricardo M., Christensen, Stephanie, Bidigare, Robert R., and Casciotti, K.
Abstract:: During austral summer 1997, satellite imagery revealed enhanced chlorophyll associated with the Antarctic Polar Front at 170°W. Phytoplankton growth conditions during the early stages of the spring increase were investigated on the Antarctic Environment and Southern Ocean Process Study Survey I cruise using flow cytometry (FCM) and microscopy to characterize...
Resource Type:: Article
Full Text:: - 2) were expressed in terms of quanta using the relationship 1W = 2.77 x 10 •8 quanta s -• from Kirk

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