Laserfiche WebLink
<br />TASK NO: 11 <br /> <br />Aquatic Resource Studies <br /> <br />SUBTASK NO: llf <br /> <br />Stream Temperature Study <br /> <br />PURPOSE: <br /> <br />A stream water temperature study will be conducted to determine the <br />temporal and spatial temperature relationships downstream from the <br />proposed reservoir outlets. As post-project hydrology and release <br />temperature data become available, the project effects on the <br />downstream fish community can be determined. <br /> <br />APPROACH: <br /> <br />The stream temperature study has two major components: <br />1) monitoring actual stream temperatures, and 2) use of an instream <br />temperature model. Monitoring stations have been selected and <br />established where continuous recording thermographs will record <br />actual temperatures for a one-year period. The data collected will <br />determine the spatial and temporal temperature relationships within <br />the project study area. Stations will continue to be checked twice <br />monthly to change recording tapes and calibrate the recording <br />devices. Data will be transcribed on data summary forms. For each <br />day, the location, date, and hourly maximum, minimum, and mean <br />water temperatures will be calculated and used in temperature model <br />simulations. <br /> <br />In addition to data collected in the field, other data inputs for <br />the instream temperature model include local meteorology, <br />hydrology, topography, and channel geometry. Following computer <br />file construction, historical hydrologic data will be used to <br />simulate pre-project conditions. Historical meteorologic and <br /> <br />6162a <br /> <br />11-14 <br />