Index Catalog // ScholarsArchive@OSU

Creator:: Shell, Karen M. and Somerville, Richard C. J.
Abstract:: An idealized global climate model is used to explore the response of the climate to a wide range of dust radiative properties and dust layer heights. The top-of-the-atmosphere (TOA) shortwave forcing becomes more negative as the broadband shortwave single scattering albedo increases and the broadband shortwave asymmetry parameter decreases, but...
Resource Type:: Article
Full Text:: dust optical properties in an idealized model Karen M. Shell1,2 and Richard C. J. Somerville1

Creator:: Shell, Karen M. and Somerville, Richard C. J.
Abstract:: Airborne mineral dust can influence the climate by altering the radiative properties of the atmosphere, but the magnitude of the effect is uncertain. An idealized global model is developed to study the dust-climate system. The model determines the dust longwave and shortwave direct radiative forcing, as well as the resulting...
Resource Type:: Article
Full Text:: in a simple aerosol climate model Karen M. Shell1,2 and Richard C. J. Somerville1 Received 13

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...
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Full Text:: Zone at 170øW Michael R. Landry, 1 Susan L. Brown, 1 Karen E. Selph, 1 M.R. Abbott, 2 R.M. Letelier

Creator:: Mace, Gerald G., Benson, Sally, Sonntag, Karen E., Kato, Seiji, Min, Qilong, Minnis, Patrick, Twohy, Cynthia, Poellot, Michael R., Dong, Xiquan, Long, Charles, Zhang, Quiqing, and Doelling, David R.
Abstract:: It has been hypothesized that continuous ground-based remote sensing measurements from collocated active and passive remote sensors combined with regular soundings of the atmospheric thermodynamic structure can be combined to describe the effects of clouds on the clear sky radiation fluxes. We critically test that hypothesis in this paper and...
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Full Text:: satellite-derived diagnostic quantities Gerald G. Mace,1 Sally Benson,1 Karen L. Sonntag,1,2 Seiji Kato,3

Creator:: Tréhu, Anne Martine, Stakes, Debra S., Bartlett, Cindy D., Chevallier, Johanna, Duncan, Robert A., Goffredi, Shana K., Potter, Susan M., and Salamy, Karen A.
Abstract:: Seismic data and seafloor samples indicate the presence of free gas, gas hydrate, and fluid seeps south of the Gorda Escarpment, a topographic feature that marks the eastern end of the Gorda/Pacific transform plate boundary southwest of Cape Mendocino, California. In spite of high sedimentation rates and high biological productivity,...
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Full Text:: . Potter,1 and Karen A. Salamy2 Received 27 November 2001; revised 5 July 2002; accepted 29 January 2003

Creator:: Duncan, Robert A., Fisk, Martin R., White, William M., and Nielsen, Roger L.
Abstract:: The island of Tahiti, the largest in French Polynesia, comprises two major volcanoes aligned NW-SE, parallel with the general trend of the Society Islands hotspot track. Rocks form this volcanic system are basalts transitional to tholeiites, alkali basalts, basanites, picrites, and evolved lavas. Through K-Ar radiometric dating we have established...
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Full Text:: Geological Sciences, Cornell University, Ithaca, New York Roger L. Nielsen College of Oceanic and

Creator:: Power, H. E., Holman, R. A., and Baldock, T. E.
Abstract:: Optical remote sensing is used to measure flow patterns in the swash zone. Timestack images are analyzed to measure the asymmetry and the relative duration of the inflow into the swash zone. This varies significantly between individual swashes, contrary to the classical analytical swash model for runup induced by bores,...
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Full Text:: swash‐by‐swash basis [Waddell, 1976; Baldock, 2009; Turner et al., 2009]. [4] The Shen‐Meyer solution

Creator:: White, William M., McBirney, Alexander R., and Duncan, Robert A.
Abstract:: We report new major element, trace element, isotope ratio, and geochronological data on the Galapagos Archipelago. Magmas erupted from the large western volcanos are generally moderately fractionated tholeiites of uniform composition; those erupted on other islands are compositionally diverse, ranging from tholeiites to picritic basanitoids. While these volcanoes do not...
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Full Text:: available on microfiche. l) Five oxides and CaO/A1203 are shown •Table of analyses is available with the

Creator:: Taylor, John Ryan, Falkner, Kelly, Schauer, Ursula, and Meredith, Mike
Abstract:: Dissolved barium (Ba) was measured along transects across Fram and Denmark Straits as part of the 1998 ARK-XIV/2 Polarstern expedition. Results are combined with other available tracer observations to analyze water mass composition at Fram Strait. A combination of Pacific water and Eurasian river runoff dominated (>80% and >10% of...
Resource Type:: Article
Full Text:: is also available. Water samples were obtained using a 24-position rosette comprising 12-L Ocean Test

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