Colorado May 2006 minutes - Laserfiche WebLink

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Jason Crow: County Commissioners will be under tremendous pressure to increase density with increasing real estate values. Zoning rules are open to change in the future. Ken Ransford: One solution to maintaining existing density is to encumber lands with conservation easements. People representing Pitkin County at CRT Meeting: Rose Ann Sullivan Phil Overeynder 10. Tree Ring Study - Lurline Underbrink-Curran From 1300 to the 1500s tree rings showed drought patterns. Look at this when making forecasts for 30-40 years out. Denver Water is at the forefront of this. They reconstructed the 500-year flow on Platte River and Colorado River at Kremmling based on tree ring studies. The 1950s drought was significant, but there have been more significant droughts. Bill Bates: Good correlation between tree rings and stream gauge information in the last 100 years. The average in dry years correlate well. There is not as good a correlation in wet years, but this is not as significant because there are fewer wet years. Stream gauges go back about 100 years. This may not be representative of all time. 2006 } r2 (correlation coefficient) between tree ring and stream gauge data is good 1906 l Extend to this period 1500 Decide if 1906 through 2006 is representative of prior 500 years Mark Pfifer: Problem is that global warming may affect future water availability. 11. Baseline Discussion: Should we prepare a baseline study: Louis Meyer: Consumptive Non-consumptive Water availability Education } Four April subgroups all talked about the importance of developing baseline data. There is no GIS map or study that quantifies all of the baseline data. Example: GIS map of entire Colorado - main stream and tributaries with river flow data of high, medium and low years, where major diversions are and where major agricultural uses are. L\CWCB Imaging\Caleb\Minutes\Colorado\2006\Colorado May 2006 minutes.doc 11