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III. EXAMPLE ENTRY To assist the user in understanding the forecast and adjustment lists, an interpretation of a sample entry is provided below. # name of location avg oct naV adj(+###,-###) 5 BEAR - HARER ADJ(+010,+029,+lS3) AVG 21 19.7 16.6 15.4 17.1 dec jan feb mar apr USGS id may jun NWS id jul aug sep Apr -Jul 10044000 HARIl 33 68 99 97 4S 19.0 16.7 309 5 number of the forecast point (points are sorted alphabetically) BEAR - HARER forecast point name (river'- site) 10044000 US Geological Survey station number HARIl National Weather Service 5 character station identifier ADJ(+010, .., List of numbered adjustments used with this point (see list of adjustments for cross reference) Starting with the observed (regulated) flow for Harer, the scheme for calculating the llnaturalll flow for Harer is as follows: +010 indicates to add adjustment # 010 from the adjustment list, that is: add 10 BEAR - WOODRUFF NARROWS RES, WOODRUFF, NR RES STORAGE +029 indicates to add adjustment # 029 add 29 CHAPMAN CAN - EVANSTON, NR, STATELINE, AT STREAMFLOW +lS3 indicates to add adjustment # 146 add 146 SULPHUR CK - SULPHUR CK RES RES STORAGE In English, the observed flow of the Bear River at Harer, Idaho is regulated or affected by the change in storage at Woodruff Narrows Reservoir, the diversion of flow by Chapman Canal, and the change in storage at Sulphur Creek Reservoir. When reservoirs are filling (storing water), the adjustment made on the downstream point is positive (i.e, the flow at Harer would have been higher if not for the reservoir). Conversely, when reservoirs are being tapped or drained for use, the adjustment on the downstream point is negative (i.e, the flow at Harer would have been lower at this time of the year if not for the reservoir) . Diversions may also be negative adjustments, as in cases where water is diverted into th~ basin from an adjacent watershed. In this example with Harer, the diversion adjustment is positive. AVG 21 19.7 ..... 12 monthly volume averages plus april-july total. Period of calculation is 1961-90. 21 19.7 October average November average 16.7 309 September average April-July total average (commonly, this is the forecast period). 5