Index Catalog // ScholarsArchive@OSU

On the abruptness of Bølling-Allerød warming

Creator:: Su, Zhan, Ingersoll, Andrew P., and He, Feng
Abstract:: Previous observations and simulations suggest that an approximate 3°–5°C warming occurred at intermediate depths in the North Atlantic over several millennia during Heinrich stadial 1 (HS1), which induces warm salty water (WSW) lying beneath surface cold freshwater. This arrangement eventually generates ocean convective available potential energy (OCAPE), the maximum potential...
Resource Type:: Article
Full Text:: Warming ZHAN SU AND ANDREW P. INGERSOLL Division of Geological and Planetary Sciences, California

Generalized Inversion of Tropical Atmosphere–Ocean Data and a Coupled Model of the Tropical Pacific

Creator:: Bennett, Andrew F., Chua, Boon S., Harrison, D. Ed, and McPhaden, Michael J.
Abstract:: It is hypothesized that the circulation of the tropical Pacific Ocean and atmosphere satisfies the equations of a simple coupled model to within errors having specified covariances, and that the Tropical Atmosphere–Ocean array (TAO) measures the circulation to within errors also having specified covariances. This hypothesis is tested by finding...
Resource Type:: Article
Full Text:: clim_11_808.1768_1792 1768 VOLUME 11J O U R N A L O F C L I M A T E q

Generalized Inversion of Tropical Atmosphere–Ocean (TAO) Data and a Coupled Model of the Tropical Pacific. Part II: The 1995–96 La Niña and 1997–98 El Niño

Creator:: Bennett, Andrew F., Chua, Boon S., Harrison, D. Ed, and McPhaden, Michael J.
Abstract:: The investigation of the consequences of trying to blend tropical Pacific observations from the Tropical Atmosphere–Ocean (TAO) array into the dynamical framework of an intermediate coupled ocean–atmosphere model is continued. In a previous study it was found that the model dynamics, the prior estimates of uncertainty in the observations, and...
Resource Type:: Article
Full Text:: clim_13_1607.2770_2785.tp 2770 VOLUME 13J O U R N A L O F C L I M A T E

Nonlinearity of carbon cycle feedbacks

Creator:: Zickfeld, Kirsten, Eby, Michael, Matthews, H. Damon, Schmittner, Andreas, and Weaver, Andrew J.
Abstract:: Coupled climate–carbon models have shown the potential for large feedbacks between climate change, atmospheric CO₂ concentrations, and global carbon sinks. Standard metrics of this feedback assume that the response of land and ocean carbon uptake to CO₂ (concentration–carbon cycle feedback) and climate change (climate–carbon cycle feedback) combine linearly. This study...
Resource Type:: Article
Full Text:: University, Montreal, Quebec, Canada ANDREAS SCHMITTNER Oregon State University, Corvallis, Oregon ANDREW

Evaluation of WRF and HadRM Mesoscale Climate Simulations over the U.S. Pacific Northwest

Creator:: Zhang, Yongxin, Dulière, Valérie, Mote, Philip W., and Salathé, Eric P.
Abstract:: This work compares the Weather Research and Forecasting (WRF) and Hadley Centre Regional Model (HadRM) simulations with the observed daily maximum and minimum temperature (Tmax and Tmin) and precipitation at Historical Climatology Network (HCN) stations over the U.S. Pacific Northwest for 2003–07. The WRF and HadRM runs were driven by...
Resource Type:: Article
Full Text:: of Energy (DOE) Atmospheric Model Intercomparison Project (AMIP)-II Reanalysis (R-2) data. The

Climate Sensitivity of the Community Climate System Model, Version 4

Creator:: Bitz, C. M., Shell, K. M., Gent, P. R., Bailey, D. A., Danabasoglu, G., Armour, K. C., Holland, M. M., and Kiehl, J. T.
Abstract:: Equilibrium climate sensitivity of the Community Climate System Model, version 4 (CCSM4) is 3.20 degrees C for 1 degrees horizontal resolution in each component. This is about a half degree Celsius higher than in the previous version (CCSM3). The transient climate sensitivity of CCSM4 at 1 degrees resolution is 1.72...
Resource Type:: Article
Full Text:: , Oregon P. R. GENT, D. A. BAILEY, AND G. DANABASOGLU National Center for Atmospheric Research, Boulder

Climate Feedbacks in CCSM3 under Changing CO₂ Forcing. Part I: Adapting the Linear Radiative Kernel Technique to Feedback Calculations for a Broad Range of Forcings

Creator:: Jonko, Alexandra K., Shell, Karen M., Sanderson, Benjamin M., and Danabasoglu, Gokhan
Abstract:: Climate feedbacks vary strongly among climate models and continue to represent a major source of uncertainty in estimates of the response of climate to anthropogenic forcings. One method to evaluate feedbacks in global climate models is the radiative kernel technique, which is well suited for model intercomparison studies because of...
Resource Type:: Article
Full Text:: Administration Bldg., Corvallis, OR 97331-5503. E-mail: ajonko@coas.oregonstate.edu 5260 J O U R N A L O F C L

The Evolution of Climate Sensitivity and Climate Feedbacks in the Community Atmosphere Model

Creator:: Gettelman, A., Kay, J. E., and Shell, K. M.
Abstract:: The major evolution of the National Center for Atmospheric Research Community Atmosphere Model (CAM) is used to diagnose climate feedbacks, understand how climate feedbacks change with different physical parameterizations, and identify the processes and regions that determine climate sensitivity. In the evolution of CAM from version 4 to version 5,...
Resource Type:: Article
Full Text:: . E-mail: andrew@ucar.edu 1 MARCH 2012 G E T T E L M A N E T A L . 1453 DOI: 10.1175/JCLI-D-11

Comparison of Short-Term and Long-Term Radiative Feedbacks and Variability in Twentieth-Century Global Climate Model Simulations

Creator:: Dalton, Meghan M. and Shell, Karen M.
Abstract:: The climate sensitivity uncertainty of global climate models (GCMs) is partly due to the spread of individual feedbacks. One approach to constrain long-term climate sensitivity is to use the relatively short observational record, assuming there exists some relationship in feedbacks between short and long records. The present work tests this...
Resource Type:: Article
Full Text:: –Southern Oscillation (ENSO) variability (Soden 1997) and the Mt. Pinatubo eruption (Forster and Collins

Using Relative Humidity as a State Variable in Climate Feedback Analysis

Creator:: Held, Isaac M. and Shell, Karen M.
Abstract:: An approach to climate change feedback analysis is described in which tropospheric relative humidity replaces specific humidity as the state variable that, along with the temperature structure, surface albedos, and clouds, controls the magnitude of the response of global mean surface temperature to a radiative forcing. Despite being simply a...
Resource Type:: Article
Full Text:: , NJ 08540. E-mail: isaac.held@noaa.gov 2578 J O U R N A L O F C L I M A T E VOLUME 25 DOI: 10.1175

ScholarsArchive@OSU

On the abruptness of Bølling-Allerød warming

Generalized Inversion of Tropical Atmosphere–Ocean Data and a Coupled Model of the Tropical Pacific

Generalized Inversion of Tropical Atmosphere–Ocean (TAO) Data and a Coupled Model of the Tropical Pacific. Part II: The 1995–96 La Niña and 1997–98 El Niño

Nonlinearity of carbon cycle feedbacks

Evaluation of WRF and HadRM Mesoscale Climate Simulations over the U.S. Pacific Northwest

Climate Sensitivity of the Community Climate System Model, Version 4

Climate Feedbacks in CCSM3 under Changing CO₂ Forcing. Part I: Adapting the Linear Radiative Kernel Technique to Feedback Calculations for a Broad Range of Forcings

The Evolution of Climate Sensitivity and Climate Feedbacks in the Community Atmosphere Model

Comparison of Short-Term and Long-Term Radiative Feedbacks and Variability in Twentieth-Century Global Climate Model Simulations

Using Relative Humidity as a State Variable in Climate Feedback Analysis

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