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<br />'l?4ij <br />{} fl " ..' <br /> <br />In region 2, the two streamflow-gaging stations used in calibration and <br />verification were Hubberson Gulch near Hayden (09244464) and Stokes Gulch near <br />Hayden (09244470). Watering Trough Gulch near Hayden (09244460) was not cali- <br />brated but was used to evaluate the transferability of the model parameters <br />within the region. One precipitation station was used in this region and the <br />data were obtained from the National Weather Service station at Hayden. <br /> <br />Region 3 <br /> <br />Region 3 is south and west of Craig (fig. 1) and includes a series of <br />roughly parallel streams that drain from the Danforth Hills--Taylor, Wilson, <br />and Jubb Creeks and Collum and Morgan Gulches. Drainage basins in this region <br />typically have drainage divides in the Danforth Hills, where elevations are <br />about 8,000 ft, although some peaks are as high as 8,800 ft. Streams in this <br />region drain from these higher elevations into the Axial basin, where the <br />elevation is about 6,500 ft in the central area. The Axial. basin is very dry; <br />the precipitation map (U.S. Weather Bureau, 1.985) indicates that total annual <br />precipitation is 1.2 in. In this region, drainage-basin divides have eleva- <br />tions comparable to drainage-basin divides in region 1; snowpacksalso are <br />comparable at similar elevations. Large areas of these drainage basins are <br />in intermediate valleys and have elevations of about 7,000 ft, which accum- <br />ulate much less snow than areas at higher elevations. Lower elevations in <br />region 3 are drier than those in region l, and a greater change of precipi- <br />tation with elevation occurs in region 3. An early runoff peak may occur in <br />February or March from melting snow. in the lower elevations, and secondary <br />runoff peaks from melting snow in the higher elevations may occur in May <br />or June. Lower elevations have complexities in water balances caused by <br />increased evapotranspiration and storage of water in alluvial aquifers. <br /> <br />In region 3, the drainage basins were monitored by streamflow-gaging <br />stations (table 1): Taylor Creek at mouth near Axial (092505l0), Wilson <br />Creek near Axial (09250600), and Jubb Creek near Axial (092506l0). The three <br />streams are roughly parallel, and the drainage basins are contiguous (fig. 1). <br />Considerably more streamflow occurs throughout the year in the Wilson Creek <br />drainage basin than in most of the other drainage basins in the region, partly <br />because of its larger drainage area, much of which is above 8,000 ft. The <br />larger total area with vegetation primarily of aspen in the Wilson Creek <br />drainage basin (table 1), compared to the other drainage basins in this <br />region, indicates a wetter environment. <br /> <br />Wilson Creek near Axial (09250600) and Jubb Creek near Axial (09250610) <br />were the two streamflow-gaging stations used for calibration and verification <br />in region 3. Taylor Creek at mouth near Axial (09250510) was used to evaluate <br />the transferability of the model parameters within the region. Only one <br />precipitation station was used to provide additional data about the three <br />drainage basins in this region. This station was located near the mouth of <br />Wilson Creek at 6,520 ft. Additional precipitation data were available from <br />the divide of Wilson Creek at 8,000 ft, but the data were not used directly <br />in the model. <br /> <br />8 <br /> <br />"," <br />~:.~ <br /> <br />,;/ <br /> <br />I <br /> <br />;"" <br /> <br />";;';- <br />....,' <br /> <br />,;,..; <br /> <br />:--;;" <br />....;, <br />.,' ,~'; <br />;~~f; <br />:'~':'1 <br />~;':;..! <br />~;8; <br /> <br />..:.....,. <br /> <br />>~; <br /> <br />~\~~:: <br />,''';:. <br />. -, ":::~" <br /> <br /> <br /> <br /> <br />~~1_~ <br />t5~ <br />.~ <br /> <br />~,;~;.;;.-; <br />l:::;(~ <br />~~ <br />~ <br /> <br />:.i~;:~ <br />':'~h:' <br />~:~.:.; <br />i;ft. <br /> <br />.,....-'. <br />;"~:r:' <br />,. <br /> <br />:::-.:';... <br /> <br />'- .~.~. <br />,.', <br />,'";:.., <br /> <br />',";':,:.' <br />,.:-.-,." <br /> <br />", ~;, <br />",';.' <br /> <br />-;.' <br /> <br />.:if:". <br /> <br />,': .',~, <br />t;;:~~~ <br />>".~ <br /> <br />!:":'..:. <br /> <br />" <br /> <br />, ~''''' <br />