Index Catalog // ScholarsArchive@OSU

Model projections of the North Atlantic thermohaline circulation for the 21st century assessed by observations

Creator:: Schmittner, Andreas, Latif, M., and Schneider, B.
Abstract:: Most climate models predict a weakening of the North Atlantic thermohaline circulation for the 21st century when forced by increasing levels of greenhouse gas concentrations. The model spread, however, is rather large, even when the forcing scenario is identical, indicating a large uncertainty in the response to forcing. In order...
Resource Type:: Article
Full Text:: thermohaline circulation for the 21st century assessed by observations A. Schmittner,1 M. Latif,2 and B

Evaluation of Different Methods to Assess Model Projections of the Future Evolution of the Atlantic Meridional Overturning Circulation

Creator:: Schneider, Birgit, Latif, M., and Schmittner, Andreas
Abstract:: Climate models predict a gradual weakening of the North Atlantic meridional overturning circulation (MOC) during the twenty-first century due to increasing levels of greenhouse gas concentrations in the atmosphere. Using an ensemble of 16 different coupled climate models performed for the Fourth Assessment Report (AR4) of the Intergovernmental Panel on...
Resource Type:: Article
Full Text:: des Sciences du Climat et de l’Environnement, Gif sur Yvette, France M. LATIF Ocean Circulation and

An observationally based constraint on the water-vapor feedback

Creator:: Gordon, N. D., Jonko, A. K., Forster, P. M., and Shell, K. M.
Abstract:: The increase in atmospheric concentrations of water vapor with global warming is a large positive feedback in the climate system. Thus, even relatively small errors in its magnitude can lead to large uncertainties in predicting climate response to anthropogenic forcing. This study incorporates observed variability of water vapor over 2002–2009...
Resource Type:: Article
Full Text:: , 2784–2795. Meehl, G. A., C. Covey, T. Delworth, M. Latif, B. McAvaney, J. F. B. Mitchell, R. J

Growth and behavioral responses to elevated temperatures by juvenile sablefish Anoplopoma fimbria and the interactive role of food availability

Creator:: Sogard, Susan M. and Olla, Bori L.
Abstract:: Larval and age-0 sablefish Anoplopoma fimbria reside in neustonic waters of the North Pacific during spring and summer. We estimated the potential impacts of elevated surface temperatures on ecological processes of growth, conversion efficiency, and behavior in early juvenile sablefish. Growth experiments tested a wide range of temperatures from 6...
Resource Type:: Article
Full Text:: temperatures by juvenile sablefish Anoplopoma fimbria and the interactive role of food availability Susan M

Eastern Pacific Warm Pool paleosalinity and climate variability: 0–30 kyr

Creator:: Benway, Heather M., Mix, Alan C., Haley, Brian A., and Klinkhammer, Gary P.
Abstract:: Multiproxy geologic records of δ18O and Mg/Ca in fossil foraminifera from sediments under the Eastern Pacific Warm Pool (EPWP) region west of Central America document variations in upper ocean temperature, pycnocline strength, and salinity (i.e., net precipitation) over the past 30 kyr. Although evident in the paleotemperature record, there is...
Resource Type:: Article
Full Text:: (2002), Stable isotope values of Costa Rican surface waters, J. Hydrol., 260, 135–150. Latif, M. (2001

Analysis of the present and future winter Pacific-North American teleconnection in the ECHAM5 global and RegCM3 regional climate models

Creator:: Allan, Andrea M., Hostetler, Steven W., and Alder, Jay R.
Abstract:: We use the NCEP/NCAR Reanalysis (NCEP) and the MPI/ECHAM5 general circulation model to drive the RegCM3 regional climate model to assess the ability of the models to reproduce the spatiotemporal aspects of the Pacific-North American teleconnection (PNA) pattern. Composite anomalies of the NCEP-driven RegCM3 simulations for 1982–2000 indicate that the...
Resource Type:: Article
Full Text:: States. J Clim 18:4545–4561 Jungclaus JH, Botzet M, Haak H, Keenlyside N, Luo J–J, Latif M, Marotzke J

Impact of climate forcing on ecosystem processes in the North Pacific Subtropical Gyre

Creator:: Corno, Guido, Karl, David M., Church, Matthew J., Letelier, Ricardo M., Lukas, Roger, Bidigare, Robert R., and Abbott, Mark R.
Abstract:: Measurements at the Hawaii Ocean Time-series (HOT) Station ALOHA (22 degrees 45'N, 158 degrees W) have revealed a significant, approximately 50% increase in euphotic zone depth-integrated rates of primary production ( PP; mol C fixed m(-2) d(-1)) based on in situ C-14 experiments. The character of the nearly two-decade increasing...
Resource Type:: Article
Full Text:: processes in the North Pacific Subtropical Gyre Guido Corno,1,2 David M. Karl,3 Matthew J. Church,3

Differing Pathways between Religiousness, Spirituality, and Health: A Self-Regulation Perspective

Creator:: Aldwin, Carolyn M., Park, Crystal, Jeong, Yu-Jin, and Nath, Ritwik
Abstract:: The literature on religiousness, spirituality (R/S), and health has increased dramatically in the past decade, but suffers from a lack of integrative theoretical models and well-defined constructs. Drawing on self-regulation theory, we hypothesized that the effects of religiousness (e.g., affiliation, service attendance) on health affects behavioral self-regulation of health habits;...
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Full Text:: , Spirituality, and Health: A Self-Regulation Perspective Aldwin, C. M., Park, C. L., Jeong, Y. J., & Nath, R

Using tracer observations to reduce the uncertainty of ocean diapycnal mixing and climate–carbon cycle projections

Creator:: Schmittner, Andreas, Urban, Nathan M., Keller, Klaus, and Matthews, Damon
Abstract:: What is the uncertainty of climate-carbon cycle projections in response to anthropogenic greenhouse gas emissions and how can we reduce this uncertainty? We address this question by quantifying the ability of available ocean tracer observations to constrain the values of diapycnal diffusivity in the pelagic ocean (Kv), a key uncertain...
Resource Type:: Article
Full Text:: uncertainty of ocean diapycnal 3 mixing and climate–carbon cycle projections 4 Andreas Schmittner,1 Nathan M

Effects of Mountains and Ice Sheets on Global Ocean Circulation

Creator:: Schmittner, Andreas, Silva, Tiago A. M., Fraedrich, Klaus, Kirk, Edilbert, and Lunkeit, Frank
Abstract:: The impact of mountains and ice sheets on the large-scale circulation of the world’s oceans is investigated in a series of simulations with a new coupled ocean–atmosphere model [Oregon State University–University of Victoria model (OSUVic)], in which the height of orography is scaled from 1.5 times the actual height (at...
Resource Type:: Article
Full Text:: Global Ocean Circulation* ANDREAS SCHMITTNER AND TIAGO A. M. SILVA1 Oregon State University, Corvallis

ScholarsArchive@OSU

Model projections of the North Atlantic thermohaline circulation for the 21st century assessed by observations

Evaluation of Different Methods to Assess Model Projections of the Future Evolution of the Atlantic Meridional Overturning Circulation

An observationally based constraint on the water-vapor feedback

Growth and behavioral responses to elevated temperatures by juvenile sablefish Anoplopoma fimbria and the interactive role of food availability

Eastern Pacific Warm Pool paleosalinity and climate variability: 0–30 kyr

Analysis of the present and future winter Pacific-North American teleconnection in the ECHAM5 global and RegCM3 regional climate models

Impact of climate forcing on ecosystem processes in the North Pacific Subtropical Gyre

Differing Pathways between Religiousness, Spirituality, and Health: A Self-Regulation Perspective

Using tracer observations to reduce the uncertainty of ocean diapycnal mixing and climate–carbon cycle projections

Effects of Mountains and Ice Sheets on Global Ocean Circulation

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