Laserfiche WebLink
A ISN <br />O <br />S' <br />�•2 <br />2) Provide brief documentation for the computation and input data for the Standardized <br />Precipitation Index (SPI). Evaluate the pros and cons of the SPI and provide <br />recommendations on how to utilize this index in statewide drought monitoring -- $3,000 <br />3) Assess climate data requirements and data continuity used in the development and <br />production of the CMPDSI and SPI. Reselect, as needed, the long -term climate data <br />inputs for drought index computation. Compute drought index time series for the period <br />1951- 2009 -- $15,000 <br />4) Using the new drought index time series, compare and contrast CMPDSI and SPI (at <br />several different time scales — 3, 6, 9 and 12 month) values for specific regions of <br />Colorado (Western Slope, mountain regions, interior high valleys, Front Range, Eastern <br />Plains). Statistically determine fundamental similarities and differences of indices and <br />their relative predictive and diagnostic capabilities. Since there is no unique independent <br />variable for verification, results will be necessarily subjective. Present results at a future <br />Water Availability Task Force meeting with the specific goal of determining, by <br />consensus of drought information providers and drought response decision makers, if the <br />CMPDSI is sufficiently different and skillful (diagnostically or predictively) to justify its <br />continued use -- $14,000 <br />5) A fundamental question in the application of either CMPDSI or the SPI is whether to <br />compute and display index values for predetermined "climate divisions" (regions and <br />subregions) or to compute and display them for individual data points with sufficient <br />long -term data. Several examples will be prepared and shared with Water Availability <br />Task force participants for feedback -- $5,000 <br />6) Develop best - practices strategies for use of indices in drought documentation, <br />prediction, early warning and public dissemination -47,000 <br />7) Work with the CWCB drought plan revision consultant to illustrate and evaluate the <br />historical use of drought index thresholds and trigger points. Then, in context with <br />improvements, enhancements and inherent limitations of "Triggers and Indices ", provide <br />a rationale for incorporation of individual and /or combined index values in the activation <br />and de- activation of State Drought Plan response steps. Provide experience -based input <br />to the consultant on response steps in the existing State Drought plan including <br />recommendations for changes -- $3,000 <br />