Year End Summary for 2014
******************************************************************************** MPCA/DNR Cooperative Stream Gaging Year End Summary Report Station: H02031001 - Sucker River nr Palmers, CR290 Year: 2014 Station Manager: DAPLOVNI Data Manager: DAPLOVNI Prepared By: Jonathon Libbey (jolibbey) 218-999-7820 (JONATHON.LIBBEY@STATE.MN.US) Approved By: Jim Pogorelc (jipogore) 218-327-4110 (JIM.POGORELC@STATE.MN.US) ******************************************************************************** Climate Summary -------------------------------------------------------------------------------- Data is collected year round at this site. The gage was removed from site on 10/2/14 and relocated to an upstream crossing. The ice out date was 04/20/2014. Snowmelt conditions: The bulk of the snowmelt likely occurred between 4/20-4/24 leading to a stage rise of approx 2 ft. The ice out peak flow was about 2/3 of that recorded in 2013. The stream was in its banks during the entire year. Based on the 2012 cross-section after the flooding event, the bankfull stage is at approximately 13.5 ft. The stage never reached this level in 2014. Periods of low or no flow: Low flows less than 5 cfs were recorded in early/mid-August. Significant climatic events: 2014 Climate Summary - Northeast January http://www.dnr.state.mn.us/climate/historical/summary_csg.html?yyyymm=201401&div=MN03 February http://www.dnr.state.mn.us/climate/historical/summary_csg.html?yyyymm=201402&div=MN03 March http://www.dnr.state.mn.us/climate/historical/summary_csg.html?yyyymm=201403&div=MN03 April http://www.dnr.state.mn.us/climate/historical/summary_csg.html?yyyymm=201404&div=MN03 May http://www.dnr.state.mn.us/climate/historical/summary_csg.html?yyyymm=201405&div=MN03 June http://www.dnr.state.mn.us/climate/historical/summary_csg.html?yyyymm=201406&div=MN03 July http://www.dnr.state.mn.us/climate/historical/summary_csg.html?yyyymm=201407&div=MN03 August http://www.dnr.state.mn.us/climate/historical/summary_csg.html?yyyymm=201408&div=MN03 September http://www.dnr.state.mn.us/climate/historical/summary_csg.html?yyyymm=201409&div=MN03 October http://www.dnr.state.mn.us/climate/historical/summary_csg.html?yyyymm=201410&div=MN03 November http://www.dnr.state.mn.us/climate/historical/summary_csg.html?yyyymm=201411&div=MN03 December http://www.dnr.state.mn.us/climate/historical/summary_csg.html?yyyymm=201412&div=MN03 Gridded Monthly Precipitation Totals: The synthetic data are made up of regularly-spaced grid nodes whose values were calculated using data interpolated from Minnesota's spatially and temporally irregular precipitation data base. Grids were prepared using the National Weather Service data from 1891 to 1972. For the period 1973 to the present, the High Spatial Density Precipitation Network (HIDEN) data (which includes NWS data) are used. http://climate.umn.edu/gridded_data/precip/monthly/csg_lookup.htm?site_id=02031001 HydroClim Minnesota is monthly electronic newsletter summarizing Minnesota's climate conditions and the resulting impact on water resources. http://www.dnr.state.mn.us/hydroclim/index.html The Hydrologic Conditions Report is prepared monthly by the DNR Division of Ecological and Water Resources and provides general information concerning the various water resources across Minnesota. The report places current values of precipitation, stream flows, lake levels and ground water levels in historical context. http://www.dnr.state.mn.us/current_conditions/hydro_conditions.html Flow Data Summary -------------------------------------------------------------------------------- Monitoring season ended on 10/2/14 when gage was removed from site and relocated upstream. Site vists to determine if the logger was tracking stage correctly were done at a frequency of 8 weeks or less. The stage record either did not track correctly or was not complete for some parts of the monitoring season. The orifice line was frozen from 2/7/14 to 3/30/14, recorded stage was not accurate and had to be deleted. Stage was accurate and complete during all moderate to high flow periods this season. Incorrect or missing stage values were accurately adjusted or estimated using a technique that introduced less than 5% error in total seasonal flow volume. The total (daily) Q for the frozen orifice line period was 210 cfs, 2% of the total annual discharge for the period the gage was operating of 13750 cfs. Other stage data collection factors: No equipment problems other than the frozen orifice line. 8 flow measurements were taken during the monitoring season. 3 were ice measurements. All recorded stage values were within the rating or less than 1 foot above the rating with no change in channel control. The highest recorded stage for 2014 was 12.06 (4/24/14). The highest gaged stage used in the current rating was 11.29 (5/5/14). Flow measurements were taken this year with a maximum frequency of 4-5 weeks or with a frequency that accurately reflects seasonal conditions. Flow measurements cover a wide range of flows, up to at least 70% of the highest recorded seasonal/annual discharge. The highest computed flow (15-min) for 2014 was 450 cfs (4/24/14). The highest measured flow was 314 cfs (4/25/14), 70% of the max computed flow. The rating is not well developed over this year's range of flows when considering quality and quantity of measurements. There is a gap in the rating from 70 to 225 cfs. Also above 225 cfs, the rating is modeled based on surveys completed after the June 2012 event. The channel still seems relatively unstable based on the continued scatter in msmts. Flows exceeded 225 cfs for most of the open water period through mid-May. There was a msmt on 4/24/15 at 314 cfs, but it fell above the rating. The rating has at least five measurements over the full range of this year's flows. Site vists to determine if the physical characteristics of the control changed during the monitoring season were done at a frequency of 5 weeks or less. A change in the physical characteristics of the control occurred at some time during the monitoring season. Change in control: Debris shifts were indicated by the 4/25, 7/24, and 8/27/14 msmts. Adequate flow measurements were not taken to confidently adjust stage during period(s) of altered control. There wasn't a flow measurement between 8/11/14 and 10/2/14 (when the gage was removed), so the 8/11 shift was copied to the end of the data. There were some moderate flow events missed during this period that may have changed control conditions. The potential error in cumulative flow volume introduced by changing channel control is less than 15%. The 2014 total discharge (daily) while the gage was operating was 13750 cfs. The total of daily Qs from 8/11 to 10/1 was 520 cfs, just under 4% of the total seasonal volume The potential error in cumulative flow volume introduced by changing channel control is less than 5%. Precipitation Data Summary -------------------------------------------------------------------------------- No Precipitation data was collected at this site for the season. Water Quality Data Summary -------------------------------------------------------------------------------- Please see the MPCA Environmental Data Access system for Water Quality results. http://www.pca.state.mn.us/customPHP/eda/stationInfo.php?ORG=MNPCA&wdip=2&ID=S001-756 -------------------------------------------------------------------------------- Data Quality for Calendar Year 2014 -------------------------------------------------------------------------------- Flow = Poor Archived Daily Value (QQC=32) Precip = NA (PQC=0) -------------------------------------------------------------------------------- - EnteredBy - DAPLOVNI