# //UNITED STATES GEOLOGICAL SURVEY http://water.usgs.gov/ # //NATIONAL WATER INFORMATION SYSTEM http://water.usgs.gov/data.html # //DATA ARE PROVISIONAL AND SUBJECT TO CHANGE UNTIL PUBLISHED BY USGS # //RETRIEVED: 2022-10-08 18:55:02 # //WARNING # //WARNING The stage-discharge rating provided in this file should be # //WARNING considered provisional and subject to change. Stage-discharge # //WARNING ratings change over time as the channel features that control # //WARNING the relation between stage and discharge vary. Users are # //WARNING cautioned to consider carefully the applicability of this # //WARNING rating before using it for decisions that concern personal or # //WARNING public safety or operational consequences. # //FILE TYPE="NWIS RATING" # //DATABASE NUMBER=01 DESCRIPTION=" Standard data base for this site." # //STATION AGENCY="USGS " NUMBER="12363000 " TIME_ZONE="MST" DST_FLAG=Y # //STATION NAME="Flathead River at Columbia Falls MT" # //LABEL="Discharge ft^3/s" # //PARAMETER CODE="00060" # //RATING ID="17.0" TYPE="STGQ" NAME="stage-discharge" AGING=Working # //RATING REMARKS="Rating 17.0 developed to adress fill that occured during high flows in 2022. QM's used for rating developement: 735-738, 746, 755-757, 762-778. Rating smoothing tool found here: X:\\\\Stations\\\\12363000_Flathead_R_at_Columbia_Falls_MT\\\\Computation_Information\\\\Ratings. Reviewed by BAP 10/6/2022 -updated the Rating based on request from NOAA, extending it back to a stage of 25.00 ft to help with flood predicitons, used most recent 2022 high flow measurements along with historical measurements to draw the upper end. " # //RATING EXPANSION="logarithmic" # //RATING BREAKPOINT1=8.510000E+00 BREAKPOINT2=1.500000E+01 # //RATING OFFSET1=3.500000E-01 OFFSET2=1.500000E+00 OFFSET3=1.600000E+00 # //RATING_INDEP ROUNDING="????" PARAMETER="Gage height (ft)" # //RATING_DEP ROUNDING="????" PARAMETER="Discharge (ft^3/s)" # //RATING_DATETIME BEGIN=20220505233000 BZONE=-07:00 END=-------------- EZONE=--- AGING=None # //RATING_DATETIME COMMENT="started during smooth transtion of Rating 16.0 and Rating 17.0" INDEP DEP STOR 16N 16N 1S 1.9600000E+00 9.3212500E+02 * 8.5100000E+00 1.9008831E+04 * 1.5000000E+01 5.4305620E+04 * 2.5000000E+01 1.6571555E+05 *