Originally Posted by aschmidt
A big part of the problem is that eddyflower isn't updating the clear creek flow. sometimes lawson is higher than golden. but if you click over to the usgs page the differences between lawson and golden make sense. you also have to consider that the water takes a while to get from lawson to golden so when lawson is going up the difference should be smaller and when it is going down the difference should be larger.
Yo smitty, got your concerns already taken care of, and no the golden gauge does not make sense, its off. Eddyflower not updating is a bummer. Eddyflower any answer to this? The golden gauge is not accurate though, trust me. I've looked at several years of gauge data and done lots of analysis on it. You could say its my "part time job" during boating season. Also, boating clear creek a lot, you get the levels dialed on visual and feel too.
Just in case you are interested, several years of daily average flows prior to the golden gauge being changed this year proved that the sum of lawson and the gauged tributaries below it was very close to the guage at golden (withing a couple of percent). Its way off that now. Daily mean flows smooth out the daily fluctuations so that the time lag between the gauges is insignificant.
As for the time lag I have also done time lag analysis. There is a 3.75 hr peak to peak lag between lawson and golden at current flows. This means that lawson, plus all the tribs close to lawson at time=0 should be close to clear creek at golden at time = +3.75 hrs, and its not. I time shifted the data from golden to match the peaks at lawson and did the summation and came up with the same results as the daily mean calculation. End result is that golden gauge is reading low by about 100 cfs right now, ranging from 80-120 cfs.
As to why this matters, some folks have their blackrock cutoffs dialed by the old gauge and 100 cfs could mean the difference between a good day and a beatdown. If you are like me and you know the exact cfs that your favorite boof is covered, or the exact cfs that the boat gouger rock gets covered, it makes a difference.