A14F:
Monsoons: Observations, Subseasonal, Seasonal, and Interannual to Decadal Variability, Forecast, Climate Change, and Extremes II


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Session ID#: 58452

Session Description:
Tropical and subtropical atmosphere feature summertime monsoon circulations, associated with seasonal changes in regional precipitation. These monsoons have tremendous socio-economic impacts through water resources, agriculture, hydropower generation, and ecosystems. Despite recent substantial progress, fundamental understanding and accurate predictions of monsoon variability at subseasonal, seasonal, and interannual to decadal time scales remains elusive. Furthermore, as the global climate warms, an understanding of variability and extremes is an even more pressing challenge.

This session invites papers on all aspects of monsoon variability and the impact of climate change. Papers discussing historical variability, impacts of climate change, land-atmosphere interactions, moisture sources, predictability of the monsoon at subseasonal, seasonal, and interannual to decadal time scales, model intercomparison, and projections of future changes due to global warming are especially welcome. Observational, modeling (both idealized and comprehensive), and theoretical studies are all welcome.

Primary Convener:  Ding Ma, Columbia University, New York, NY, United States
Conveners:  Salvatore Pascale, Geophysical Fluid Dynamics Laboratory, Princeton, NJ, United States, Spencer A Hill, UCLA AOS & Caltech GPS, Los Angeles, CA, United States and Ajaya Mohan Ravindran, New York University Abu Dhabi, Center for Prototype Climate Modeling, Abu Dhabi, United Arab Emirates
Primary Liaison:  Ding Ma, Columbia University, New York, NY, United States
Chairs:  Ding Ma, Columbia University, New York, NY, United States and Ajaya Mohan Ravindran, New York University Abu Dhabi, Center for Prototype Climate Modeling, Abu Dhabi, United Arab Emirates
OSPA Liaison:  Spencer A Hill, Princeton University, Princeton, United States
Index Terms:

1637 Regional climate change [GLOBAL CHANGE]
3305 Climate change and variability [ATMOSPHERIC PROCESSES]
3314 Convective processes [ATMOSPHERIC PROCESSES]
3374 Tropical meteorology [ATMOSPHERIC PROCESSES]

Abstracts Submitted to this Session:

Finding mechanisms for variability in monsoon onset using idealized models (Invited) (348012)
Ruth Geen, University of Exeter, Exeter, EX4, United Kingdom, Francis H Lambert, University of Exeter, College of Engineering, Mathematics and Physical Sciences, Exeter, United Kingdom and Geoffery K Vallis, University of Exeter, Exeter, United Kingdom
Assessment of the space-time variability of southwest U.S. summer rainfall in AMIP model simulations (437754)
Srijita Jana, University of Colorado at Boulder, Boulder, CO, United States, Balaji Rajagopalan, University of Colorado at Boulder, Department of Civil, Environmental and Architectural Engineering and CIRES, Boulder, United States, Yochanan Kushnir, Columbia Univ, Palisades, NY, United States and Andrea J Ray, NOAA/Earth System Research Lab, Boulder, CO, United States
Seasonal variability of early and late onset monsoon seasons in the Sahel (399903)
Catherine Pomposi1, Shraddhanand Shukla2 and Chris C Funk2, (1)US Agency for International Development, Washington, DC, United States, (2)University of California Santa Barbara, Climate Hazards Center, Geography Department, Santa Barbara, United States
Projections of the West African Monsoon using an idealized 2D model (465345)
Ross D Dixon1, Françoise Guichard1 and Philippe Peyrille2, (1)CNRM, Toulouse, France, (2)Meteo-France/CNRM, Toulouse, France
Tropical Indian Ocean Warming Contributions to Asian Winter and Spring Climate Variations (433513)
Qigang Wu, Fudan University, Shanghai, China; Fudan University, Department of Atmospheric and Oceanic Sciences, Institute of Atmospheric Sciences, Shanghai, China, Yonghong Yao, Nanjing University, School of Atmospheric Sciences, Nanjing, China and Shizuo Liu, Nanjing University, Nanjing, China
Dynamics of Intraseasonal Oscillations in the Indian Ocean (364627)
Heather Leigh Roman-Stork, Global Science and Technology Inc, NOAA STAR, Greenbelt, United States and Subrahmanyam Bulusu, University of South Carolina Columbia, Columbia, SC, United States
If rain falls in India and no one measures it, does it bias trends in monsoon extremes? (452879)
Marena Lin and Peter J Huybers, Harvard University, Department of Earth and Planetary Sciences, Cambridge, MA, United States
Topographic Influences on the North American Monsoon (416516)
Arianna Marie Varuolo-Clarke, University of Colorado at Boulder, Boulder, United States, Kevin A Reed, Stony Brook University, School of Marine and Atmospheric Sciences, Stony Brook, United States and Brian Medeiros, National Center for Atmospheric Research, Climate and Global Dynamics Laboratory, Boulder, United States

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