Sediment Analysis

This is an example of the raw images I'm using for grain size analysis in this project. This method allows for more rapid and more spatially distributed characterization of grain size. It was hard to do a proper Wolman pebble count on a sandbar measuring 2m on a side. Details of the method I am using are presented in Graham, Reid & Rice (2005).

LWD

Fred Touche measuring LWD (large woody debris) in Deer Creek near Castlegar in July 2006.

Right now I'm doing the last bits of data entry - 2007 LWD surveys from my handwritten notes into Excel. No one seems to have quantitatively linked natural LWD density to effective discharge before; Rob Millar demonstrated a change in the bankfull and effective dischages after LWD was removed.

First Post

This is my first post. I am starting this blog to have a quick website where contributors to my project can drop in from time to time and check on my progress, and perhaps see what issues I am thinking about as my research progresses.

Right now I have a project proposal (I'll post it here later as a PDF), I have gathered most of my data, processed most of my raw data and am getting ready, after two years, to start data analysis. I'm taking a course in HEC-RAS in Oregon next month which will be very helpful in the streamflow data analysis. I'm pretty excited about that.

Here is a pretty stream picture to look at. What's going on in this channel? This is just upstream of a large jam in the Albert River. It seems that the channel is aggrading, so the bankfull discharge frequency should be low and the effective discharge should be higher. Sediment is moving into this reach but not out. Once I crunch the numbers I'll know whether or not I'm right.