2 edition of atmospheric response to a stratospheric dust cloud as simulated by a general circulation model found in the catalog.
atmospheric response to a stratospheric dust cloud as simulated by a general circulation model
E. S. Batten
|Statement||E. S. Batten.|
|Series||Rand Corporation. Rand report] -- R-1324-ARPA., R (Rand Corporation) -- R-1324., R (Rand Corporation) -- R-1324-ARPA.|
|The Physical Object|
|Pagination||17 p. ;|
|Number of Pages||17|
Project Description The Goddard chemistry climate model, GEOSCCM, is based on the NASA/GMAO general circulation model integrated with various chemical packages. We have completed a series of experiments with the coupled model designed to understand potential feedbacks between the atmosphere's composition and the state of the climate. 5 ABSTRACT 6 We examine the key characteristics of the boreal winter extratropical circulation changes in 7 response to anthropogenic aerosols, simulated with a coupled atmosphere-slab ocean general 8 circulation model. The zonal-mean response features a pronounced equatorward shift of 9 the Northern Hemisphere subtropical jet owing to the mid-latitude .
Robock, Alan, Climate model simulations of the effects of the El Chichón eruption. Geofísica Internacional, 23, PDF file. Matson, Michael and Alan Robock, Satellite detection of the El Chichón eruptions and stratospheric dust cloud. Geofísica Internacional, 23, (b) Simulated data from the Canadian Middle Atmosphere Model further suggest that cloud-cover variability is correlated with temperature across a range of latitudes and altitudes. In particular, positive and negative correlation coefficients at high and low latitudes in the winter stratosphere and mesosphere exhibit a quadrupole structure.
Intercomparison and interpretation of climate feedback processes in seventeen atmospheric general circulation models. J. Geophys. Res., 95, Kiehl, J.T., and V. Ramanathan, Comparison of cloud forcing derived from the Earth Radiation Budget Experiment with that simulated by the NCAR Community Climate Model. J. Geophys. Formulation of a new ocean salinity boundary condition and impact on the simulated climate of an oceanic general circulation model. Science China Earth Sciences, 60(3), Liu, Ping and Zhu, Yuejian and Zhang, Qin and Gottschalck, Jon and Zhang, Minghua et al. (), Climatology of tracked persistent maxima of hPa geopotential height.
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Results of using the RAND version of the Mintz-Arakawa general circulation model to investigate the initial atmospheric response to a stratospheric dust cloud spread uniformly in a zone between 25° N and 75° N.
The dust particles, construed to be two microns or less in diameter, have a total volume comparable to the ejecta of Krakatoa in The Rand version of the Mintz-Arakawa General Circulation model has been used to investigate the initial atmospheric response to a stratospheric dust cloud spread uniformly in a zone between 25°N and N In the experiment to be dis- cussed, the dust cloud is assumed to consist of particl m 2 Mm in diameter or smaller, totaling 4.
This. Get this from a library. The atmospheric response to a stratospheric dust cloud as simulated by a general circulation model. [E S Batten; Rand Corporation.; United States. Defense Advanced Research Projects Agency.]. The authors study the effect of clouds on the atmospheric circulation response to CO 2 quadrupling in an aquaplanet model with a slab ocean lower boundary.
The cloud effect is isolated by locking the clouds to either the control or 4xCO 2 state in the shortwave (SW) or longwave (LW) radiation schemes. In the model, cloud radiative changes explain more than Cited by: J.W.
Hurrell, in Encyclopedia of Ocean Sciences (Second Edition), Atmospheric Processes. Atmospheric general circulation model (AGCMs) 3 provide strong evidence that the basic structure of the NAO results from the internal, nonlinear dynamics of the atmosphere.
The observed spatial pattern and amplitude of the NAO are well simulated in AGCMs forced. The models often show significant differences in terms of their simulated transport, chemistry, and removal of aerosols with inter-model differences in stratospheric circulation, radiative dynamical interactions, and exchange with the troposphere likely to play an important role (e.g.
Aquila et al., ; Niemeier and Timmreck, ). The atmospheric response to negative anomalous radiative heating in the Northern Hemisphere polar stratosphere (i.e., as stratospheric temperatures relax to climatology) gives rise to mean meridional circulation anomalies in the same sense as the response to easterly wave drag (Fig.
3, right). However, in this case the Coriolis force acting on the induced meridional flow is. Batten, E.S.: The atmospheric response to a stratospheric dust cloud as simulated by a general circulation model.
Report RARPA. The Rand Corporation17pp. Mercado et al. use the HadGEM2-A general circulation model to simulate the effect of late twentieth century 'global dimming' and associated increases in the diffuse radiation fraction on global.
Simulations were performed using CESM1(WACCM), a coupled atmosphere-ocean general circulation model with fully interactive stratospheric. Toon's research works w citations and 7, reads, including: Evaluating Climate Sensitivity to CO 2 Across Earth's History.
One of the generally accepted climatic effects of stratospheric aerosol injection is the reduction of the global radiation in high latitudes by an order of 5% during El Chichon type eruptions.
To test the effect of a high-latitude radiation deficit on global climate, a GCM experiment was performed with the ECMWF T21 atmosphere general circulation model (AGCM).
A methodology for understand- ing and intercomparing atmospheric climate feedback pro- cesses in general circulation models. Geophys. Res., Covey, C., Thompson, S.L. and Schneider, S.H., Global atmospheric effects of massive smoke injections from a nuclar war: Results from general circulation model simulations.
Walton, The climatic response to large atmospheric smoke injections: Sensitivity studies with a tropospheric genera] circulation model, submitted to the Journal of Geophysical Research, ; hereafter called Ghan et al., submitted manuscript, ], Thompson  and Malone et al.
In contrast, Clement et al. 18 reject the importance of AMOC altogether, and show from coupled atmosphere-ocean general circulation models (GCMs) that the AMO could develop as a pattern of. The response of the Martian atmosphere to various dust loads and the ability of its meridional circulation to transport dust globally are simulated by using a numerical model based on a two dimensional version of the primitive equations in spherical-sigma coordinates.
The circulation is driven by the daily averaged heating rate which consists of contributions from the absorption of. Interception of sunlight by the high-altitude worldwide dust cloud generated by impact of a large asteroid or comet would lead to substantial land surface cooling, according to our three-dimensional atmospheric general circulation model (GCM).
A model of dust in the Martian lower atmosphere. Geophys. Res., The effect of convective adjustment on the global circulation of Mars as simulated by a general circulation model.
In Albee, A. (ed), Phoenix Lidar observations of dust, clouds. This book provides a unified and comprehensive treatment of the field that blends classical results with modern interpretations. It takes the reader seamlessly from the basics to the frontiers of knowledge, from the equations of motion to modern theories of the general circulation of the atmosphere and ocean.
Harris and E. Highwood, A simple relationship between volcanic sulfate aerosol optical depth and surface temperature change simulated in an atmosphere‐ocean general circulation model, Journal of Geophysical Research: Atmospheres,D5, ().
1 Introduction. In this study, we describe a new version of an Earth system model capable of representing the formation and interactions of stratospheric sulfate aerosol from source gases and use it to study the evolution and radiative and chemical impacts of SO 2 inputs from large volcanic eruptions.
We use this model in a series of companion papers (Kravitz et al., ;. Yannick Peings, Gudrun Magnusdottir, Wintertime atmospheric response to Atlantic multidecadal variability: effect of stratospheric representation and ocean–atmosphere coupling, Climate Dynamics, /s, 47,(), ().Response of the cloud-topped marine boundary layer to depletion of aerosol concentrations.
; Spreading and growth of persistent contrails in a sheared environment. ; Stratospheric cirrus cloud formation following a massive water injection from an asteroid/comet impact into the ocean.