Session 7A Earth System Climate Reanalyses: Low Frequency Variability and Trends

Wednesday, 13 January 2016: 8:30 AM-10:00 AM
La Nouvelle C ( New Orleans Ernest N. Morial Convention Center)
Host: 28th Conference on Climate Variability and Change
Siegfried D. Schubert, Global Modeling and Assimilation Office, Greenbelt, MD; Dick Dee, ECMWF, Reading and Michael G. Bosilovich, NASA/GSFC/GMAO, Global Modeling and Assimilation Office, Greenbelt, MD

The last three decades have been marked by major shifts in a number of climate modes of variability including the Atlantic Multi-decadal Oscillation and the Pacific Decadal Oscillation shifts that have been linked to changes in drought and weather extremes throughout the world, as well as the recent hiatus in long-term surface temperature trends. Reanalyses offer a dynamically and physically consistent global interdisciplinary framework for assessing and understanding the nature of such regional changes. This session seeks contributions that take advantage of reanalyses of observations to address various aspects of climate variability and change as outlined above. This includes comparisons between the multi-disciplinary set of reanalyses of the Earth System(e.g. land, ocean, aerosol and cryosphere) and observations, downscaling of reanalyses including an assessment of changes in weather extremes, modeling (e.g., AGCM) studies that put the reanalysis results in the context of underlying climate uncertainty, as well as studies that seek to assess, understand and/or correct inhomogeneities that limit the usefulness of reanalyses for assessing low frequency variability and trends including efforts to improve the ability to produce consistent reanalyses of the coupled climate system.

9:00 AM
9:15 AM
Temperature Trends and Variability in the 20th Century reanalysis version 2c dataset spanning 1851 to 2012
Gilbert P. Compo, CIRES, Univ. of Colorado and Physical Sciences Division/ESRL/NOAA, Boulder, CO; and J. S. Whitaker, P. D. Sardeshmukh, B. S. Giese, and P. Brohan
9:30 AM
9:45 AM
The Global Moisture Balance and its Variability in the MERRA-2 Reanalysis
Michael G. Bosilovich, NASA/GSFC/Global Modeling and Assimilation Offic, Greenbelt, MD; and F. R. Robertson and G. Partyka
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