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Channel Geomorphology and In-Channel Veg Response to RFP
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Channel Geomorphology and In-Channel Veg Response to RFP
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Last modified
1/26/2010 4:36:25 PM
Creation date
5/27/2009 2:27:29 PM
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Template:
Water Supply Protection
File Number
8461.600
Description
Requests for Proposols (PRRIP)
State
CO
Basin
South Platte
Water Division
1
Date
1/1/3000
Author
Blue Mountain Consultants
Title
Channel Geomorphology and In-Channel Veg Response to RFP
Water Supply Pro - Doc Type
Project Overview
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monumenting the end points. Like the cross section surveys, I would use my MS Excel templates and <br />macros to align the horizontal coordinates of all verticals to match the straight line vector between the <br />end points, and calculate a linear distance from one end point to each vertical in the transect. The areal <br />extent of the feature of interest (vegetative species or barren) above baseflow can be estimated using <br />the formula for the area of an ellipse. <br />In the DMP, the mean elevation of the transect is simply the average of the verticals measured. <br />However, unless the surface being surveyed is perfectly level, and the elevation transitions across the <br />surface are at 90 degree angles (stair steps), these calculations are mathematically incorrect and the <br />error in the calculation could exceed the variation in elevation of the surface measured over time. <br />Similar to calculating channel geometry, you should sum the increments of area calculated per vertical <br />and divide by the length of the transect, for both transects. Then take the mean elevation for each <br />transect and multiply each by (length of transect/length of both transects) to obtain a weighted mean <br />elevation. <br />Once areal extent and mean elevation for species/features of interest are calculated for all individual <br />areas, the procedures for combining data at an Anchor Point and for the entire channel as outlined in <br />the DMP can be followed. <br />Il.b. Proportion of Species of Concern within the Channel <br />The proportion of species of interest within the channel will be determined using the procedures <br />detailed in the DMP. Area covered and average elevation above water at base flow will be combined <br />across Anchor Points to obtain an frequency distribution of elevation (average and highest) for species <br />of interest in the main channel. <br />III. USGS Gauging Station Data <br />Ill.a. Discharge <br />Discharge will be monitored real-time at 6 USGS gauging stations Cozad, Overton, Odessa, Kearney, <br />Shelton, and Grand Island. The data may be reported in 15 minute or hourly intervals. The data will be <br />downloaded and stored in MS Excel spreadsheets, by gauge, and list the DateTime stamp and respective <br />discharge value in cubic feet/second. The database will be maintained for the duration of the monitoring <br />effort. Specific discharges relating to sediment transport monitoring will also be reported with the <br />sediment data. <br />Ill.b. Stage <br />Stage will be monitored real-time at 6 USGS gauging stations Cozad, Overton, Odessa, Kearney, Shelton, <br />and Grand Island. The data may be reported in 15 minute or hourly intervals. The data will be <br />downloaded and stored in MS Excel spreadsheets, by gauge, and list the DateTime stamp and respective <br />stage value in feet. <br />Ill.c. Temperature <br />Temperature will be monitored real-time at 6 USGS gauging stations Cozad, Overton, Odessa, Kearney, <br />Shelton, and Grand Island. The data may be reported in 15 minute or hourly intervals. The data will be <br />downloaded and stored in MS Excel spreadsheets, by gauge, and list the DateTime stamp and respective <br />temperature value in Fahrenheit and Celsius. <br />PRRIP - Geomorphic Monitoring 6 of 20 Blue Mountain Consultants
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