Geomorphology Weekly Notes 4-2.htm
Geomorphology Weekly Notes 4-2.htm — HTML, 3 kB (3138 bytes)
File contents
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN"> <!-- Created from PDF via Acrobat SaveAsXML --> <!-- Mapping table version: 28-February-2003 --> <HTML> <HEAD> <META name="dc.title" content=" Q=vol w=width" > <META name="dc.date" content="2009-08-13T10:50:11-04:00" > <META name="dc.date.modified" content="2009-08-13T10:50:14-04:00" > <META name="generator" content="Adobe Acrobat Exchange-Pro 7.8" > </HEAD> <BODY bgcolor=white text=black link=blue vlink=purple alink=fushia > <DIV class="Sect" ><DIV ><P align="justify" ><FONT size="+1" color="#000000"></B> Q=vol w=width<FONT size="+1"> </P ><P align="justify" ><FONT size="+1">V=velocity d=depth<FONT size="+1"> </P ><P align="justify" ><FONT size="+1">Hydrography - graph above flow/ gauging station<FONT size="+1"> </P ></DIV ><DIV ><P align="justify" ><FONT size="+1">River flow - saltation, plucking & quarring<FONT size="+1"> </P ><P align="justify" ><FONT size="+1">Kolking - Whirpool, rounded basalt<FONT size="+1"> </P ><P align="justify" ><FONT size="+1">Lahars or volcanic water or debris also<FONT size="+1"> </P ><P align="justify" ><FONT size="+1">Abrasion and Pot holes<FONT size="+1"> </P ><P align="justify" ><FONT size="+1">Knick point - stream bed over waterfall<FONT size="+1"> </P ><P align="justify" ><FONT size="+1">Slope inverse function of discharge<FONT size="+1"> </P ><P align="justify" ><FONT size="+1">Larger channels need less slope to flow<FONT size="+1"> </P ><P align="justify" ><FONT size="+1">Temporary vs. ultimate base level<FONT size="+1"> </P ><P align="justify" ><FONT size="+1">Floods - annual vs. 25, 50, 75 & 100 years vs. 125 yrs.<FONT size="+1"> </P ><P align="justify" ><FONT size="+1">River sediment flow<FONT size="+1"> </P ><P align="justify" ><FONT size="+1">Competence - Ability to transport sediment<FONT size="+1"> </P ><P align="justify" ><FONT size="+1">Froude # is the degree of turbulence<FONT size="+1"> </P ><P align="justify" ><FONT size="+1">Depends on velocity and depth<FONT size="+1"> </P ><P align="justify" ><FONT size="+1">Capacity - sediment max of theoretical transmitted<FONT size="+1"> </P ><P align="justify" ><FONT size="+1">Thalweg - line connecting max h2o depth of a channel<FONT size="+1"> </P ><P align="justify" ><FONT size="+1">Anastomosing or anabranching channel<FONT size="+1"> </P ><P align="justify" ><FONT size="+1">Straight channel if dredged is unstable<FONT size="+1"> </P ><P align="justify" ><FONT size="+1">Meanders & 0 X B 0 W S<FONT size="+1"> </P ><P align="justify" ><FONT size="+1">Neck cut off, point bar (inside)<FONT size="+1"> </P ><P align="justify" ><FONT size="+1">Broad plains and aggrading<FONT size="+1"> </P ><P align="justify" ><FONT size="+1">Grade - 10 variables in hydrolic geometry<FONT size="+1"> </P ><P align="justify" ><FONT size="+1">ID= discharge, load & ultimate base level supply vs. transport limited<FONT size="+1"> </P ></DIV ></DIV ></BODY> </HTML>
Copyright 2014,
by the Contributing Authors.
This work is licensed under a
Creative Commons License
Cite/attribute Resource.
rsadoo. (Aug 17, 2009). Geomorphology Weekly Notes 4-2.htm. Retrieved Nov 06, 2014, from UMass Boston OpenCourseware Web site: http://ocw.umb.edu/environmental-earth-and-ocean-sciences/eeos-302-geomorphology/Geomorphology%20Weekly%20Notes%204-2.htm.