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Vulnerability of Water Resources to Climate Change: Using Multi-Criteria Analysis in NCAP Projects

Vulnerability of Water Resources to Climate Change: Using Multi-Criteria Analysis in NCAP Projects. Bill Dougherty, SEI-Boston 9-13 May 2005 Akosomba, Ghana. Overview. Multi-criteria analysis – methodological basis MCA-WEAP – preliminaries MCA-WEAP – operationality on each laptop

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Vulnerability of Water Resources to Climate Change: Using Multi-Criteria Analysis in NCAP Projects

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  1. Vulnerability of Water Resources to Climate Change:Using Multi-Criteria Analysis in NCAP Projects Bill Dougherty, SEI-Boston 9-13 May 2005 Akosomba, Ghana

  2. Overview • Multi-criteria analysis – methodological basis • MCA-WEAP – preliminaries • MCA-WEAP – operationality on each laptop • MCA-WEAP – tutorial for drought-prone area in semi-arid area

  3. Multi-criteria analysis – methodological basis

  4. Multi-criteria Analysis (MCA) Any structured approach used to determine overall preferences among among alternative options, where the alternative options can accomplish several objectives

  5. MCA – Appropriate Use MCA is particularly applicable to situations where a single criterion would fall short, and allows decisionmakers to address a range of relevant factors

  6. MCA – Scope All Sectors, all regions, all livelihoods, all ecosystems, all… Has been used extensively in water resource planning, coastal zone management, stakeholder processes, and agricultural development

  7. MCA – Key Outputs A single, most preferred option, or…. A shortlist of preferred options, or… A characterization of acceptable and unacceptable possibilities

  8. MCA – Key Inputs Evaluation criteria and… Relevant metrics for those criteria

  9. MCA – Training Required Some expertise required but can be acquired fairly easily.

  10. MCA-WEAP – Preliminaries

  11. MCA-WEAP - Motivation Interactive computer tool to facilitate multi-criteria assessment for water resource options in a stakeholder context. Designed specifically to be able to be used in conjunction with outputs from the WEAP model and stakeholder processes

  12. MCA-WEAP - History MCA-WEAP is a new Excel-based model, built off NAPAssess which has been developed by SEI-B for Sudan and Yemen for use in their NAPA processes

  13. MCA-WEAP – Current Status Reshaped to focus exclusively on adaptation options for water resource management Developed explicitly for use in NCAP projects, for any who wish to use it Still a BETA version (!!) Macro-based, Excel-based, & open source

  14. MCA-WEAP – Capability MCA-WEAP streamlines the multi-criteria analysis process by • Housing all relevant project information on a single platform • Supporting a transparent, user-friendly process for developing, weighting and applying evaluation criteria • Producing a ranked set of alternatives

  15. MCA-WEAP – Operationality

  16. MCA-WEAP – Start-up • Should be loaded and a shortcut installed on all laptops • Located on your desktop next to the WEAP icon • Two possible messages when opening: • 1. “Macros in this workbook are disabled…” • 2. “C:\MCA-WEAP\MCA-WEAP.xls contains macros…”

  17. MCA-WEAP – Message #1 “C:\MCA-WEAP\MCA-WEAP.xls contains macros…” If this message comes up, select “enable macros”

  18. MCA-WEAP – Message #2 “Macros in this workbook are disabled…” If this message comes up, change the security setting to medium

  19. MCA-WEAP – Message #2 (cont’d) To change the security setting to medium: • Open blank worksheet in Excel • Go to “tools”, choose “options” • Select “Security” tab • Select “macro security” • Select “Security Level” tab • Choose “medium”

  20. MCA-WEAP – Tutorial

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