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Anomalous seafloor spreading of the Southeast Indian Ridge near the Amsterdam-St. Paul Plateau

Creator:: Scheirer, Daniel S., Forsyth, Donald W., Conder, James A., Eberle, MichaelA., Hung, Shu-Huei, Johnson, Kevin, and Graham, David W.
Abstract:: The Amsterdam-St. Paul Plateau is bisected by the intermediate-rate spreading Southeast Indian Ridge, and numerous geophysical and tectonic anomalies arise from the interactions of the Amsterdam-St. Paul hotspot and the spreading center. The plate boundary geometry on the hotspot platform evolves rapidly (on timescales <1 Myr), off-axis volcanism is abundant,...
Resource Type:: Article
Full Text:: AMSTERDAM-ST. PAUL distance from Antarctica-Australia pole of opening (") ~ ~ ~ ~ M ~ ~ ~ ~ ~ ro n n

Seasonal dynamics of the near-surface alongshore flow off central Chile

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...
Resource Type:: Article
Full Text:: Aguirre,1 Óscar Pizarro,2 Paul T. Strub,3 René Garreaud,1 and John A. Barth3 Received 13 June 2011

Surface stress in offshore flow and quasi-frictional decoupling

Creator:: Mahrt, Larry, Vickers, Dean, Sun, Jielun, Crawford, Timothy L., Crescenti, Gennaro, and Frederickson, Paul
Abstract:: Aircraft data collected at approximately 15 m above the sea surface in the coastal zone are analyzed to examine the spatial distribution of surface stress. Advection of stronger turbulence from land dominates the near-surface turbulence for the first few kilometers offshore. With offshore flow of warm air over cold water,...
Resource Type:: Article
Full Text:: , 2 Timothy L. Crawford, 3 Gennaro Crescenti, 3 and Paul Frederickson 4 Abstract. Aircraft data

Turbulence variability at the equator in the central Pacific at the beginning of the 1991-1993 El Nino

Creator:: Lien, R.-C., Caldwell, Douglas R., Gregg, M.C., and Moum, James N.
Abstract:: A 38-day, 5990-cast microstructure study on the equator performed during the onset of the 1991-1993 El Nino shows the effect on small-scale activity at 140°W of an equatorial Kelvin wave. By using two ships, data were taken continuously from November 4 to December 12, 1991, near the National Oceanic and...
Resource Type:: Article
Full Text:: at the beginning of the 1991-1993 E1 Nifio • M. C. Gregg 1 and J. N. Moum • R.-C. Lien, 1 D. R

A record of atmospheric CO₂ during the last 40,000 years from the Siple Dome, Antarctica ice core

Creator:: Ahn, Jinho, Wahlen, Martin, Deck, Bruce L., Brook, Edward J., Mayewski, Paul A., Taylor, Kendrick C., and White, James W. C.
Abstract:: We have measured the CO₂ concentration of air occluded during the last 40,000 years in the deep Siple Dome A (hereafter Siple Dome) ice core, Antarctica. The general trend of CO₂ concentration from Siple Dome ice follows the temperature inferred from the isotopic composition of the ice and is mostly...
Resource Type:: Article
Full Text:: ,2 Paul A. Mayewski,3 Kendrick C. Taylor,4 and James W. C. White5 Received 3 December 2003; revised

Observation of playa salts as nuclei in orographic wave clouds

Creator:: Pratt, Kerri A., Twohy, Cynthia, Murphy, Shane M., Moffet, Ryan C., Heymsfield, Andrew J., Gaston, Cassandra J., DeMott, Paul J., Field, Paul R., Henn, Tobias R., Rogers, David C., Gilles, Mary K., Seinfeld, John H., and Prather, Kimberly A.
Abstract:: During the Ice in Clouds Experiment‐Layer Clouds (ICE‐L), dry lakebed, or playa, salts from the Great Basin region of the United States were observed as cloud nuclei in orographic wave clouds over Wyoming. Using a counterflow virtual impactor in series with a single‐particle mass spectrometer, sodium‐potassium‐magnesium‐calcium‐chloride salts were identified as...
Resource Type:: Article
Full Text:: . Heymsfield,7 Cassandra J. Gaston,8 Paul J. DeMott,9 Paul R. Field,10 Tobias R. Henn,6,11 David C. Rogers,12

Convective distribution of tropospheric ozone and tracers in the Central American ITCZ region: Evidence from observations during TC4

Creator:: Avery, Melody, Twohy, Cynthia, McCabe, David, Joiner, Joanna, Severance, Kurt, Atlas, Eliot, Blake, Donald, Bui, T. P., Crounse, John, Dibb, Jack, Diskin, Glenn, Lawson, Paul, McGill, Matthew, Rogers, David, Sachse, Glen, Scheuer, Eric, Thompson, Anne M., Trepte, Charles, Wennberg, Paul, and Ziemke, Jerald
Abstract:: During the Tropical Composition, Clouds and Climate Coupling (TC4) experiment that occurred in July and August of 2007, extensive sampling of active convection in the ITCZ region near Central America was performed from multiple aircraft and satellite sensors. As part of a sampling strategy designed to study cloud processes, the...
Resource Type:: Article
Full Text:: Crounse,3 Jack Dibb,9 Glenn Diskin,10 Paul Lawson,11 Matthew McGill,12 David Rogers,2 Glen Sachse,13 Eric

Examinations of ice formation processes in Florida cumuli using ice measurements of anvil ice crystal particle residues

Creator:: Prenni, Anthony J., DeMott, Paul J., Twohy, Cynthia, Poellot, Michael R., Kreidenweis, Sonia M., Rogers, David C., Brooks, Sarah D., Richardson, Matthew S., and Heymsfield, Andrew J.
Abstract:: A continuous flow diffusion chamber (CFDC) was used to measure ice formation by cloud particle residuals during the Cirrus Regional Study of Tropical Anvils and Cirrus Layers-Florida Area Cirrus Experiment. These measurements were directed toward determining the relative contributions of homogeneous nucleation, heterogeneous nucleation, and secondary ice formation processes to...
Resource Type:: Article
Full Text:: cumuli using ice nuclei measurements of anvil ice crystal particle residues Anthony J. Prenni,1 Paul J

Spatial and interannual variability in mesoscale circulation in the northern California Current System

Creator:: Keister, Julie Eileen and Strub, P. Ted
Abstract:: We used wavelet analyses of sea surface height (SSH) from >13 years of satellite altimeter data to characterize the variability in mesoscale circulation in the northern California Current (35°N–49°N) and explore the mechanisms of variability. We defined ‘‘mesoscale’’ circulation as features, such as eddies and filaments, which have 50- to...
Resource Type:: Article
Full Text:: variability in mesoscale circulation in the northern California Current (35�N–49�N) and explore the mechanisms

A model-data comparison of gross primary productivity: Results from the North American Carbon Program site synthesis

Creator:: Schaefer, Kevin, Schwalm, Christopher R., Williams, Chris, Arain, M. Altaf, Barr, Alan, Chen, Jing M., Davis, Kenneth J., Dimitrov, Dimitre, Hilton, Timothy W., Hollinger, David Y., Humphreys, Elyn, Poulter, Benjamin, Raczka, Brett M., Richardson, Andrew D., Sahoo, Alok, Thornton, Peter, Vargas, Rodrigo, Verbeeck, Hans, Anderson, Ryan, Baker, Ian, Black, T. Andrew, Bolstad, Paul, Chen, Jiquan, Curtis, Peter S., Desai, Ankur R., Dietze, Michael, Dragoni, Danilo, Gough, Christopher, Grant, Robert F., Gu, Lianhong, Jain, Atul, Kucharik, Chris, Law, Beverly, Liu, Shuguang, Lokipitiya, Erandathie, Margolis, Hank A., Matamala, Roser, McCaughey, J. Harry, Monson, Russ, Munger, J. William, Oechel, Walter, Peng, Changhui, Price, David T., Ricciuto, Dan, Riley, William J., Roulet, Nigel, Tian, Hanqin, Tonitto, Christina, Torn, Margaret, Weng, Ensheng, and Zhou, Xiaolu
Abstract:: Accurately simulating gross primary productivity (GPP) in terrestrial ecosystem models is critical because errors in simulated GPP propagate through the model to introduce additional errors in simulated biomass and other fluxes. We evaluated simulated, daily average GPP from 26 models against estimated GPP at 39 eddy covariance flux tower sites...
Resource Type:: Article
Full Text:: Ryan Anderson,19 Ian Baker,20 T. Andrew Black,21 Paul Bolstad,22 Jiquan Chen,23 Peter S. Curtis,24

ScholarsArchive@OSU

Anomalous seafloor spreading of the Southeast Indian Ridge near the Amsterdam-St. Paul Plateau

Seasonal dynamics of the near-surface alongshore flow off central Chile

Surface stress in offshore flow and quasi-frictional decoupling

Turbulence variability at the equator in the central Pacific at the beginning of the 1991-1993 El Nino

A record of atmospheric CO₂ during the last 40,000 years from the Siple Dome, Antarctica ice core

Observation of playa salts as nuclei in orographic wave clouds

Convective distribution of tropospheric ozone and tracers in the Central American ITCZ region: Evidence from observations during TC4

Examinations of ice formation processes in Florida cumuli using ice measurements of anvil ice crystal particle residues

Spatial and interannual variability in mesoscale circulation in the northern California Current System

A model-data comparison of gross primary productivity: Results from the North American Carbon Program site synthesis

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