230 likes | 318 Views
Water Decisions for Sustainability of the Arbuckle-Simpson Aquifer. Heather Lazrus And Erin Towler , Debasish PaiMazumder , Rebecca Morss – National Center for Atmospheric Research With Renee McPherson – University of Oklahoma Climate Information for Managing Risks In Water Resources
E N D
Water Decisions for Sustainability of the Arbuckle-Simpson Aquifer Heather Lazrus And Erin Towler, DebasishPaiMazumder, Rebecca Morss – National Center for Atmospheric Research With Renee McPherson – University of Oklahoma Climate Information for Managing Risks In Water Resources 21 February, 2014
Funded through the SARP program • Lazrus - PI, Anthropology, Renee McPherson - co-PI, Meteorology, • New collaborators sitting in the Regional Climate Section, NCAR • DebasishPaiMazumder, Climatology • Erin Towler, Hydrology/Ecology • Rebecca Morss, Meteorology and Communication
More than 2.8 billion people in 48 countries will face water scarcity conditions by 2025 (Source: Population Action International)
What does diminishing water availability mean locally? A confluence of factors: • Weather and climate patterns • Economic systems and drivers • Policy frameworks • Water management • Access to water • E.g., Dust Bowl Management decisions
Arbuckle-Simpson Aquifer:Water Decisions • How much groundwater can be extracted to “not reduce the natural streamflow?” • Reduce maximum annual yield from 2 acre feet/acre to 0.2 acre feet/acre
Arbuckle-Simpson Aquifer, OK Sampled wells in Chickasaw Nation Instrumentation of the Arbuckle-Simpson Aquifer Aquifer groundwater levels are associated with drought. GW Level (ft) 40 30 20 10 Drought Index (PDSI)
Project Research Questions How do stakeholders in the Arbuckle-Simpson Aquifer of south-central Oklahoma perceive drought risks across weather and climate scales, and how do these perceptions guide water management decisions (preferences) given • diverse cultural beliefs, • valued hydro/ecological services, • past drought experience, and • uncertainties in historical assessments and future projections of precipitation, temperature, and drought?
Power of interdisciplinary collaboration is understanding different pieces of the drought puzzle to see the whole picture Diverse cultural beliefs Past drought experiences Valued ecosystem services Climate projections
Interviews (open- and closed-ended questions, n ~ 40) • Decision makers and managers (i.e., cities of Ada, Sulphur, and Tishmingo) • Community leaders • Industry association members (i.e., ranching, farming, mining) • Engaged citizens (i.e., Citizens for the Protection of the Arbuckle-Simpson Aquifer (CPASA)) • Chickasaw Nation
Risk perceptions Decisions Cultural Theory of Risk Common Pool Resources “[Decision] are those of broadly rational individuals who find themselves in complex and uncertain situations. An individual’s choice of behavior … will depend on how the individual learns about, views, and weighs the benefits and costs of actions.” Ostrom (1990:33) “The perception of risk is a social process. Preferences for risk …can be explained by the function those preferences serve for an individual’s way of life.” Thomson, Ellis, & Wildavsky (1990:63)
Example closed-ended survey questions: [Egalitarian measure] Question 15b: Water should be managed by a communal process in which everyone has an equal say. [Individualist measure] Question 15c: Restrictions on how property owners can use water on their property are an infringement of individual rights.
Example open-ended responses: “As populations increase, and the closer we get to having a serious drought, the less sustainable [current water management] actually is....At this point, they’re quite clueless about how close to the edge they are.” – Egalitarian perspective “ And once those rules are set you can’t have a bunch of water Nazis trying to make judgment calls about how someone’s using their water. So, if I can use a certain amount – tell me what that amount is, and then stay the hell out of my business.” • Individualist perspective
Egalitarian index and Individualist Index negatively correlated (r = -0.85, p < 0.01) (Courtesy Julie Demuth)
Ecosystem values: “How important is water in your community for….” More important Less Important
Variability in “Importance of Water for Recreation” is partially explained (R2=.34) by worldview. Other factors (e.g., human behavior) also contribute. Importance of Water for Recreation Egalitarian Measure of Worldview Individualist
Next step is to take drought projections to estimate future likelihoods
Drought • Probability of “Moderate Drought” (PDSI < -2) • Corresponds to below a groundwater level of 30 feet • Varied over recent decades:
Past drought experiences: Have you experienced droughts in the past? What was the worst drought you experienced? Why was it so bad? • Lasted several consecutive years • Pennington Creek dried up • Hot temperatures, high nighttime temps • Lack of precipitation • High winds • Prolonged, “started off behind” • Areas dry not seen before • Widespread
Putting it all together: A GIS application • Collaboration with NCAR GIS Program and Chickasaw Nation • Scott Ketchum • Novel way to displayed data to citizens and decision makers • Publicly accessible on internet and area community centers: http://www.mmm.ucar.edu/projects/drought/index.html
Summary • Risk as a function of impacts and social relations and values (e.g., risk perceptions) • How risk perceptions guide water management preferences and decision making • Understand conflict over water management • Towards decisions for sustainability that reflect diverse perceptions of risk • Next steps: Proposals to test framework in other contextsand contribute to early warning systems
Thank you! • Heather Lazrus - hlazrus@ucar.edu • Project website: http://www.mmm.ucar.edu/projects/drought/index.html This project is funded by award #NA11OAR4310205 from the Sectoral Application Research Program of the NOAA Climate Program Office, with additional support from the National Center for Atmospheric Research (NCAR) and the University of Oklahoma. NCAR is sponsored by the National Science Foundation Views and opinions are those of the authors.