Record Details
Power-law residence time distribution in the hyporheic zone of a 2nd-order mountain stream
ScholarsArchive at Oregon State University
| Field | Value |
|---|---|
| Title | Power-law residence time distribution in the hyporheic zone of a 2nd-order mountain stream |
| Names |
Haggerty, Roy
(creator) Wondzell, Steven M. (creator) Johnson, Matthew A. (creator) |
| Date Issued | 2002 (iso8601) |
| Note | This is the publisher’s final pdf. The published article is copyrighted by the American Geophysical Union and can be found at: http://www.agu.org/journals/gl/. |
| Abstract | We measured the hyporheic residence time distribution in a 2nd-order mountain stream at the H. J. Andrews Experimental Forest, Oregon, and found it to be a power-law over at least 1.5 orders of magnitude in time (1.5 hr to 3.5 d). The residence time distribution has a very long tail which scales as t[superscript −1.28], and is poorly characterized by an exponential model. Because of the small power-law exponent, efforts to characterize the mean hyporheic residence time (t[subscript s]) in this system result in estimates that are scale invariant, increasing with the characteristic advection time within the stream channel (t[subscript ad]). The distribution implies the hyporheic zone has a very large range of exchange timescales, with significant quantities of water and solutes stored over time-scales very much longer than t[subscript ad]. The hyporheic zone in such streams may contribute to short-time fractal scaling in time series of solute concentrations observed in small-watershed studies. |
| Genre | Article |
| Topic | Hydrology |
| Identifier | Haggerty, R., S. M. Wondzell, and M. A. Johnson (2002), Power-law residence time distribution in the hyporheic zone of a 2nd-order mountain stream, Geophysical Research Letters, 29(13), 1640, doi:10.1029/2002GL014743. |
