Model:BedrockAlluvialTransition: Difference between revisions
From CSDMS
No edit summary |
No edit summary |
||
Line 20: | Line 20: | ||
|Extended model description=This program computes fluvial aggradation/degradation with a bedrock-alluvial transition. The bedrock-alluvial transition is located at a point sba(t) which is free to change in time. A bedrock basement channel with slope Sb is exposed from x = 0 to sba(t); it is covered with alluvium from x = sba(t) to x = sd, where sd is fixed. Initially sba = 0. The bedrock basement channel is assumed to undergo no incision on the time scales at which the alluvial reach responds to change. In computing bed level change on the alluvial reach, the normal (steady, uniform) flow approximation is used. Base level is maintained at x = sd, where bed elevation h = 0. The Engelund-Hansen relation is used to compute sediment transport rate, so the analysis is appropriate for sand-bed streams. Resistance is specified in terms of a constant Chezy coefficient Cz. | |Extended model description=This program computes fluvial aggradation/degradation with a bedrock-alluvial transition. The bedrock-alluvial transition is located at a point sba(t) which is free to change in time. A bedrock basement channel with slope Sb is exposed from x = 0 to sba(t); it is covered with alluvium from x = sba(t) to x = sd, where sd is fixed. Initially sba = 0. The bedrock basement channel is assumed to undergo no incision on the time scales at which the alluvial reach responds to change. In computing bed level change on the alluvial reach, the normal (steady, uniform) flow approximation is used. Base level is maintained at x = sd, where bed elevation h = 0. The Engelund-Hansen relation is used to compute sediment transport rate, so the analysis is appropriate for sand-bed streams. Resistance is specified in terms of a constant Chezy coefficient Cz. | ||
}} | }} | ||
{{Start model keyword table}} | |||
{{Model keywords | {{Model keywords | ||
|Model keywords=bed variation | |Model keywords=bed variation | ||
Line 29: | Line 30: | ||
|Model keywords=fluvial morphodynamics | |Model keywords=fluvial morphodynamics | ||
}} | }} | ||
{{End a table}} | |||
{{Model technical information | {{Model technical information | ||
|Supported platforms=Linux, Mac OS, Windows | |Supported platforms=Linux, Mac OS, Windows | ||
Line 80: | Line 82: | ||
|CMT component=Yes | |CMT component=Yes | ||
}} | }} | ||
{{Start coupled table}} | |||
{{End a table}} | |||
{{End headertab}} | {{End headertab}} | ||
<!-- PLEASE USE THE "EDIT WITH FORM" BUTTON TO EDIT ABOVE CONTENTS; CONTINUE TO EDIT BELOW THIS LINE --> | <!-- PLEASE USE THE "EDIT WITH FORM" BUTTON TO EDIT ABOVE CONTENTS; CONTINUE TO EDIT BELOW THIS LINE --> |