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Coloquio del Departamento de Ciencias de la Atmósfera y los Océanos
(DCAO)/
Centro de Investigaciones del Mar y la Atmósfera (CIMA)
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<span style="font-size: medium;"><strong>COLOQUIO Y COLOQUIO EXTRAORDINARIO</strong></span></pre>
<pre> </pre>
<pre><strong>Miércoles 24 de Octubre, 13hs, 2º Piso, DCAO, Aula 8</strong>
COLOQUIO
Estimación de emisiones antropogénicas de gases de efecto invernadero</pre>
<pre> </pre>
<pre>Ignacio Pisso
National Institute for Envirnonmental Studies (Japon)</pre>
<pre> </pre>
<pre>Resumen:</pre>
<pre>Las emisiones de gases de efecto invernadero provenientes de actividades humanas pueden modificar negativamente la composición de la atmósfera. Para regular las actividades que los generan, es necesario conocer la intensidad de las emisiones y de su localización en el espacio y en el tiempo. En este coloquio examinaremos algunos
métodos de estimación de emisiones antropogénicas de gases de efecto invernadero incluyendo desarrollos recientes en alta resolucion.</pre>
<pre>
Lugar: Aula 8, 2º Piso, DCAO
Pabellón 2,
Ciudad Universitaria.</pre>
<pre> </pre>
<pre> </pre>
<pre><strong>Viernes 26 de Octubre, 14hs, 2º Piso, DCAO, Aula 8</strong></pre>
<pre> </pre>
<pre>COLOQUIO EXTRAORDINARIO
EVALUATING GLOBAL CLIMATE RESPONSES TO DIFFERENT FORCINGS USING SIMPLE INDICES</pre>
<pre> </pre>
<pre>David Karoly<br />School of Earth Sciences, University of Melbourne, Australia</pre>
<pre> </pre>
<pre>Resumen:</pre>
<pre>The most common indicator of global scale climate change is the global-mean surface air temperature. There are several additional indices of global scale temperature variations that are useful for distinguishing natural internal climate variations from anthropogenic climate change (Karoly and Braganza 2001, Drost et al., 2011). These include the contrast between the average temperatures over land and over oceans, the meridional temperature gradient in the Northern Hemisphere, and the magnitude of the annual cycle of temperatures over land. They are nearly independent of the global mean temperature for natural internal climate variations at decadal time scales and represent different aspects of the climate system, yet they show common responses to anthropogenic climate change.<br /><br />Here, I will report on analyses of the CMIP5 historical simulations, comparing the decadal variability of the indices with that from 3 observational datasets and from CMIP3 model simulations, as well as comparing the trends of the indices over the last fifty years. The CMIP5 greenhouse-gas-only and natural-only forcing runs for the historical period are used to assess the climate responses in these indices to greenhouse gas, natural and anthropogenic aerosol forcing variations from the different models.<br /><br /><br />Professor David Karoly is an internationally recognised expert in climate change and climate variability, including greenhouse climate change, stratospheric ozone depletion and interannual climate variations due to El Niño-Southern Oscillation. He was heavily involved in preparation of the Fourth Assessment Report of the Intergovernmental Panel on Climate Change (IPCC) released in 2007, in several different roles. Professor Karoly is a member of the new Climate Change Authority in Australia. He is also a member of the Science Advisory Panel to the Australian Climate Commission, the Wentworth Group of Concerned Scientists, and the Joint Scientific Committee, which provides oversight of the World Climate Research Programme. </pre>
<pre> </pre>
<pre>Lugar: Aula 8, 2º Piso, DCAO
Pabellón 2,
Ciudad Universitaria.</pre>
<pre> </pre>
<pre>
¡Los esperamos a todos!
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Grupo Coloquios
Departamento de Ciencias de la Atmosfera y los Oceanos (FCEN-UBA)
Centro de Investigaciones del Mar y la Atmosfera (CONICET-UBA)
Ciudad Universitaria, 2do piso.
email: coloquios@at.fcen.uba.ar
http://www.at.fcen.uba.ar/charlas_not.php
http://www.cima.fcen.uba.ar/espanol/index.htm
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