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• Dolores USGS back to 1951. USBR calculations referenced referenced above used for 1930-50. Price 90% of flows from CRSS Node entitled 'Gains above Green River, Utah' with all negative numbers set to 0. The basis for this manipula- tion was telephone conversa- tions between mike Brewer, FWS and David Merritt, USBR. n LJ State Line Data was produced by ing the constructed flows from the Cisco flows. Construction record was 1930-50. records were used after after 1950. For the same time period (1930-1959), water temperatures at Greendale (immediately downstream from Flaming Gorge Reservoir) were needed. A regression model for the HP41-C calculator devel- oped by Theurer (in press) was used to synthesize the missing water temperatures. This regression included the variables of air temperature, wind speed, humidity, solar radiation, cloud cover, and flow; the input data covered the period 1956 to 1962, and included 60 data points. The change in elevation between Grand Junction and Greendale was used to correct air temperature and relative humidity before the regression was developed. The solar radiation data was obtained from the example application documented in Theurer (in press). The regression produced satisfactory results (R = 0.9905) and was then used with the meteorological and synthesized hydrology data to predict water temperatures. The regression statistics to fill in missing water temperatures prior to Flaming Gorge Dam appear in Appendix B. Missing water temperatures at other gaging stations were synthesized by the standard regression sub-model component of the temperature model regression. We could not use the model's regression routine to fill in missing water temperature data at Greendale because of the effects of the reservoir's release temperature. A regression model based on the post-dam period would have been inappropriate to synthesize the pre-dam water temperatures. subtract- Dolores gage of the USGS 5