Search Results - "Rotstayn, Leon"

On the attribution of changing pan evaporation by Roderick, Michael L., Rotstayn, Leon D., Farquhar, Graham D., Hobbins, Michael T.

“…Evaporative demand, measured by pan evaporation, has declined in many regions over the last several decades. It is important to understand why. Here we use a…”
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Spatial patterns of radiative forcing and surface temperature response by Shindell, Drew T., Faluvegi, Greg, Rotstayn, Leon, Milly, George

“…Examination of effective radiative forcing (ERF), a measure of changes in Earth's energy balance, facilitates understanding the role of various drivers of…”
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Why Does Aerosol Forcing Control Historical Global-Mean Surface Temperature Change in CMIP5 Models? by Rotstayn, Leon D., Collier, Mark A., Shindell, Drew T., Boucher, Olivier

“…Linear regression is used to examine the relationship between simulated changes in historical global-mean surface temperature (GMST) and global-mean aerosol…”
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Tropical Rainfall Trends and the Indirect Aerosol Effect by Rotstayn, Leon D., Lohmann, Ulrike

“…An atmospheric global climate model coupled to a mixed layer ocean model is used to study changes in tropical rainfall due to the indirect effects of…”
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Evaluation of cloud and water vapor simulations in CMIP5 climate models using NASA "A-Train" satellite observations by Jiang, Jonathan H., Su, Hui, Zhai, Chengxing, Perun, Vincent S., Del Genio, Anthony, Nazarenko, Larissa S., Donner, Leo J., Horowitz, Larry, Seman, Charles, Cole, Jason, Gettelman, Andrew, Ringer, Mark A., Rotstayn, Leon, Jeffrey, Stephen, Wu, Tongwen, Brient, Florent, Dufresne, Jean-Louis, Kawai, Hideaki, Koshiro, Tsuyoshi, Watanabe, Masahiro, LÉcuyer, Tristan S., Volodin, Evgeny M., Iversen, Trond, Drange, Helge, Mesquita, Michel D. S., Read, William G., Waters, Joe W., Tian, Baijun, Teixeira, Joao, Stephens, Graeme L.

“…Using NASA's A‐Train satellite measurements, we evaluate the accuracy of cloud water content (CWC) and water vapor mixing ratio (H2O) outputs from 19 climate…”
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A simple pan-evaporation model for analysis of climate simulations: Evaluation over Australia by Rotstayn, Leon D., Roderick, Michael L., Farquhar, Graham D.

“…We show that a simple model of pan evaporation (“PenPan”) can be used to analyze monthly mean output from a global climate model (GCM). PenPan is based on a…”
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Improved simulation of Australian climate and ENSO‐related rainfall variability in a global climate model with an interactive aerosol treatment by Rotstayn, Leon D., Collier, Mark A., Dix, Martin R., Feng, Yan, Gordon, Hal B., O'Farrell, Siobhan P., Smith, Ian N., Syktus, Jozef

“…We assess the simulation of Australian mean climate and rainfall variability in a new version of the CSIRO coupled ocean–atmosphere global climate model (GCM)…”
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Projected effects of declining anthropogenic aerosols on the southern annular mode by Rotstayn, Leon D

“…Declining emissions of anthropogenic aerosols have been shown to contribute to global warming in climate projections from the Coupled Model Intercomparison…”
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Cloud droplet spectral dispersion and the indirect aerosol effect: Comparison of two treatments in a GCM by Rotstayn, Leon D., Liu, Yangang

“…Two parameterizations of cloud droplet spectral dispersion and their impact on the indirect aerosol effect are compared in a global climate model. The earlier…”
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Have Australian rainfall and cloudiness increased due to the remote effects of Asian anthropogenic aerosols? by Rotstayn, Leon D., Cai, Wenju, Dix, Martin R., Farquhar, Graham D., Feng, Yan, Ginoux, Paul, Herzog, Michael, Ito, Akinori, Penner, Joyce E., Roderick, Michael L., Wang, Minghuai

“…There is ample evidence that anthropogenic aerosols have important effects on climate in the Northern Hemisphere but little such evidence in the Southern…”
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Declining Aerosols in CMIP5 Projections: Effects on Atmospheric Temperature Structure and Midlatitude Jets by Rotstayn, Leon D., Plymin, Emily L., Collier, Mark A., Boucher, Olivier, Dufresne, Jean-Louis, Luo, Jing-Jia, von Salzen, Knut, Jeffrey, Stephen J., Foujols, Marie-Alice, Ming, Yi, Horowitz, Larry W.

“…The effects of declining anthropogenic aerosols in representative concentration pathway 4.5 (RCP4.5) are assessed in four models from phase 5 the Coupled Model…”
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On the "tuning" of autoconversion parameterizations in climate models by Rotstayn, Leon D.

“…Autoconversion is a highly nonlinear process, which is usually evaluated in global climate models (GCMs) from the mean in‐cloud value of the liquid‐water…”
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Forcing of anthropogenic aerosols on temperature trends of the sub-thermocline southern Indian Ocean by Cowan, Tim, Cai, Wenju, Purich, Ariaan, Rotstayn, Leon, England, Matthew H.

“…In the late twentieth century, the sub-thermocline waters of the southern tropical and subtropical Indian Ocean experienced a sharp cooling. This cooling has…”
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Sensitivity of the First Indirect Aerosol Effect to an Increase of Cloud Droplet Spectral Dispersion with Droplet Number Concentration by Rotstayn, Leon D., Liu, Yangang

“…Observations show that an increase in anthropogenic aerosols leads to concurrent increases in the cloud droplet concentration and the relative dispersion of…”
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Indirect forcing by anthropogenic aerosols: A global climate model calculation of the effective-radius and cloud-lifetime effects by Rotstayn, Leon D.

“…A global climate model (GCM) that includes a physically based cloud scheme is used to calculate the indirect radiative forcing due to the modification of…”
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Possible impacts of anthropogenic and natural aerosols on Australian climate: a review by Rotstayn, Leon D., Keywood, Melita D., Forgan, Bruce W., Gabric, Albert J., Galbally, Ian E., Gras, John L., Luhar, Ashok K., McTainsh, Grant H., Mitchell, Ross M., Young, Stuart A.

“…A review is presented of the aerosol–climate interaction with specific focus on the Australian region. The uncertainties associated with this interaction are…”
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Anthropogenic aerosol forcing and the structure of temperature trends in the southern Indian Ocean by Cai, Wenju, Cowan, Tim, Dix, Martin, Rotstayn, Leon, Ribbe, Joachim, Shi, Ge, Wijffels, Susan

“…Over the past decades surface warming in the southern subtropical Indian Ocean (IO) has been greater than that in other oceans. The warming penetrates to a…”
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Indirect Aerosol Forcing, Quasi Forcing, and Climate Response by Rotstayn, Leon D., Penner, Joyce E.

“…The component of the indirect aerosol effect related to changes in precipitation efficiency (the second indirect or Albrecht effect) is presently evaluated in…”
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A smaller global estimate of the second indirect aerosol effect by Rotstayn, Leon D., Liu, Yangang

“…Global estimates of the indirect aerosol effect much larger than 1 W m−2 in magnitude are difficult to reconcile with observations, yet climate models give…”
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Intercomparison and evaluation of cumulus parametrizations under summertime midlatitude continental conditions by Xie, Shaocheng, Xu, Kuan‐Man, Cederwall, Richard T., Bechtold, Peter, Genio, Anthony D. Del, Klein, Stephen A., Cripe, Douglas G., Ghan, Steven J., Gregory, David, Iacobellis, Sam F., Krueger, Steven K., Lohmann, Ulrike, Petch, Jon C., Randall, David A., Rotstayn, Leon D., Somerville, Richard C. J., Sud, Yogesh C., Salzen, Knut Von, Walker, Gregory K., Wolf, Audrey, Yio, J. John, Zhang, Guang Jun, Zhang, Minghua

“…This study reports the Single‐Column Model (SCM) part of the Atmospheric Radiation Measurement (ARM)/the Global Energy and Water Cycle Experiment (GEWEX) Cloud…”
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