Session Proposal: Integrated Observations/Modeling of Water Cycle Extremes and Attribution of Changes in the Components of the Hydrological Cycle to Human Influences I (2015 AGU Fall Meeting)

H42D:
Integrated Observations/Modeling of Water Cycle Extremes and Attribution of Changes in the Components of the Hydrological Cycle to Human Influences I

Session ID#: 10610

Session Description:

Anthropogenic influence can alter the magnitude, variability, timing, frequency and other characteristics of the variables which constitute the hydrologic cycle. Analysis of this influence requires accurate observational records as well as climate and hydrologic simulations, and statistical models to separate the anthropogenic signal from internal variability. This session focuses on the improvements in understanding of human influence on the global and regional hydrologic cycle, advancements in the observed and simulated datasets used in attribution studies, and statistical approaches for the detection and attribution of anthropogenic influence. The session emphasizes climate and land use change and how they affect the patterns of precipitation, evapotranspiration, runoff, soil moisture, snow cover, snow water equivalent and their characteristics including timing, frequency, and magnitude. Studies which attribute recent hydroclimatic extreme events, in particular floods and droughts, to anthropogenic signals are strongly encouraged.

Primary Convener: Mohammad Reza Najafi, Western University, Department of Civil and Environmental Engineering, London, ON, Canada

Conveners: Richard G Lawford, Morgan State University, Baltimore, MD, United States, Francis W Zwiers, University of Victoria, Pacific Climate Impacts Consortium, Victoria, BC, Canada and Paul Raymond Houser, George Mason University Fairfax, Fairfax, VA, United States

Chairs: Sushel Unninayar, NASA Goddard Space Flight Center, KBR/MSU, Greenbelt, MD, United States and Mohammad Reza Najafi, Western University, Department of Civil and Environmental Engineering, London, ON, Canada

OSPA Liaison: Sushel Unninayar, NASA Goddard Space Flight Center, KBR/MSU, Greenbelt, MD, United States

Cross-Listed:

A - Atmospheric Sciences
GC - Global Environmental Change
IN - Earth and Space Science Informatics
NH - Natural Hazards

Co-Sponsor(s):

IGBP: International Geosphere-Biosphere Programme -

Index Terms:

1632 Land cover change [GLOBAL CHANGE]
1655 Water cycles [GLOBAL CHANGE]
1803 Anthropogenic effects [HYDROLOGY]
3305 Climate change and variability [ATMOSPHERIC PROCESSES]

Abstracts Submitted to this Session:

Integrated Information Systems Across the Weather-Climate Continuum (Invited) (48172)

Roger S Pulwarty¹, Wayne Higgins², Claudia Nierenberg² and Juli Trtanj³, (1)NOAA, Boulder, CO, United States, (2)NOAA, Climate Program Office, Silver Spring, DC, United States, (3)NOAA, Climate Program Office, Silver Spring, United States

Requirements to Observational Systems for a Better Quantification and Understanding of Hydroclimate Extremes (Invited) (59896)

Olga Zolina, IORAS, Moscow, Russia; LGGE, Saint Martin d'Heres, France, Clemens Simmer, University of Bonn, Bonn, Germany, Olga Bulygina, All-Russian Research Institute Hydrometeorological Information, Obninsk, Russia and Pavel Groisman, University Corporation for Atmospheric Research, Boulder, CO, United States

The Potential for Forecasting Water Cycle Extremes with GRACE (Invited) (48426)

Matthew Rodell¹, Benjamin F Zaitchik², Augusto Getirana^3,4, Bailing Li^5,6, Sujay V Kumar⁷, Hiroko K Kato-Beaudoing^6,8, Himanshu Save⁹ and Srinivas V Bettadpur¹⁰, (1)NASA Goddard Space Flight Center, Earth Sciences Division, Greenbelt, MD, United States, (2)Johns Hopkins University, Baltimore, MD, United States, (3)NASA Goddard Space Flight Center, Greenbelt, MD, United States, (4)Earth System Science Interdisciplinary Center, University of Maryland, College Park, MD, United States, (5)NASA/GSFC, Greenbelt, United States, (6)Earth System Science Interdisciplinary Center, University of Maryland, College Park, United States, (7)NASA Goddard Space Flight Center, Hydrological Sciences Laboratory, Greenbelt, United States, (8)NASA GSFC HSL (ESSIC University of Maryland), Greenbelt, MD, United States, (9)The University of Texas at Austin, Center for Space Research, Austin, TX, United States, (10)Center for Space Research, Austin, TX, United States

Satellite-Enhanced Dynamical Downscaling of Extreme Events (76822)

Ana Nunes, UFRJ Federal University of Rio de Janeiro, Department of Meteorology, Rio de Janeiro, Brazil

Improving the understanding and diagnosis of Earth system changes in cold regions (Invited) (58294)

Dennis P Lettenmaier, University of California Los Angeles, Los Angeles, CA, United States

Anthropogenic Warming Has Increased Drought Risk In California (Invited) (65419)

Noah S Diffenbaugh¹, Daniel L Swain² and Dr. Danielle E Touma, PhD², (1)Stanford University, Earth System Science and Woods Institute for the Environment, Stanford, United States, (2)Stanford University, Earth System Science, Stanford, CA, United States

Human influence on meteorological drought risk in Europe (Invited) (59084)

Lukas Gudmundsson, Institute for Atmospheric and Climate Science, Department of Environmental Systems Science, ETH Zurich, Zurich, Switzerland and Sonia I Seneviratne, ETH Zurich, Department of Environmental Systems Science, Zurich, Switzerland

Systematic Change in Global Patterns of Streamflow Following Volcanic Eruptions (79316)

Carley Elizabeth Iles, University of Edinburgh, Edinburgh, United Kingdom and Gabriele C Hegerl, University of Edinburgh, Edinburgh, EH9, United Kingdom