Gas transfer velocity (k600) increases with discharge in steep streams but not in low‐slope streams
Abstract Gas transfer velocity (k600) controls gas fluxes between aquatic ecosystems and the atmosphere. In streams, k600 is controlled by turbulence and, thus, local hydrology and geomorphology. Resultantly, variability in k600 can be large and modeling k600 from physical parameters can have large...
Saved in:
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2025-06-01
|
| Series: | Limnology and Oceanography Letters |
| Online Access: | https://doi.org/10.1002/lol2.70003 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1850124128870203392 |
|---|---|
| author | Kelly S. Aho Kaelin M. Cawley Robert O. Hall Jr. Robert T. Hensley Walter K. Dodds Nicolas Harrison Keli J. Goodman |
| author_facet | Kelly S. Aho Kaelin M. Cawley Robert O. Hall Jr. Robert T. Hensley Walter K. Dodds Nicolas Harrison Keli J. Goodman |
| author_sort | Kelly S. Aho |
| collection | DOAJ |
| description | Abstract Gas transfer velocity (k600) controls gas fluxes between aquatic ecosystems and the atmosphere. In streams, k600 is controlled by turbulence and, thus, local hydrology and geomorphology. Resultantly, variability in k600 can be large and modeling k600 from physical parameters can have large uncertainty. Here, we leverage a large dataset of k600 estimates derived from tracer‐gas experiments in 22 US streams across a range of discharges. Our analysis shows that k600 was highly variable both spatially across and temporally within streams, with estimates of k600 spanning three orders of magnitude. Overall, k600 scaled with discharge in steep streams due to relatively high stream power, but not in low‐slope streams, where stream power was relatively low even at high flows. Understanding how k600 responds to stream discharge in a wide variety of streams is key to creating temporally and spatially resolved estimates of biogeochemical processes in streams. |
| format | Article |
| id | doaj-art-a110d2bba04b4510884f1b2dc40173f3 |
| institution | OA Journals |
| issn | 2378-2242 |
| language | English |
| publishDate | 2025-06-01 |
| publisher | Wiley |
| record_format | Article |
| series | Limnology and Oceanography Letters |
| spelling | doaj-art-a110d2bba04b4510884f1b2dc40173f32025-08-20T02:34:24ZengWileyLimnology and Oceanography Letters2378-22422025-06-0110330831710.1002/lol2.70003Gas transfer velocity (k600) increases with discharge in steep streams but not in low‐slope streamsKelly S. Aho0Kaelin M. Cawley1Robert O. Hall Jr.2Robert T. Hensley3Walter K. Dodds4Nicolas Harrison5Keli J. Goodman6Department of Earth and Environmental Science, Department of Integrative Biology Michigan State University East Lansing Michigan USANational Ecological Observatory Network Boulder Colorado USAFlathead Lake Biological Station University of Montana Polson Montana USANational Ecological Observatory Network Boulder Colorado USADivision of Biology Kansas State University Manhattan Kansas USANational Ecological Observatory Network Boulder Colorado USANational Ecological Observatory Network Boulder Colorado USAAbstract Gas transfer velocity (k600) controls gas fluxes between aquatic ecosystems and the atmosphere. In streams, k600 is controlled by turbulence and, thus, local hydrology and geomorphology. Resultantly, variability in k600 can be large and modeling k600 from physical parameters can have large uncertainty. Here, we leverage a large dataset of k600 estimates derived from tracer‐gas experiments in 22 US streams across a range of discharges. Our analysis shows that k600 was highly variable both spatially across and temporally within streams, with estimates of k600 spanning three orders of magnitude. Overall, k600 scaled with discharge in steep streams due to relatively high stream power, but not in low‐slope streams, where stream power was relatively low even at high flows. Understanding how k600 responds to stream discharge in a wide variety of streams is key to creating temporally and spatially resolved estimates of biogeochemical processes in streams.https://doi.org/10.1002/lol2.70003 |
| spellingShingle | Kelly S. Aho Kaelin M. Cawley Robert O. Hall Jr. Robert T. Hensley Walter K. Dodds Nicolas Harrison Keli J. Goodman Gas transfer velocity (k600) increases with discharge in steep streams but not in low‐slope streams Limnology and Oceanography Letters |
| title | Gas transfer velocity (k600) increases with discharge in steep streams but not in low‐slope streams |
| title_full | Gas transfer velocity (k600) increases with discharge in steep streams but not in low‐slope streams |
| title_fullStr | Gas transfer velocity (k600) increases with discharge in steep streams but not in low‐slope streams |
| title_full_unstemmed | Gas transfer velocity (k600) increases with discharge in steep streams but not in low‐slope streams |
| title_short | Gas transfer velocity (k600) increases with discharge in steep streams but not in low‐slope streams |
| title_sort | gas transfer velocity k600 increases with discharge in steep streams but not in low slope streams |
| url | https://doi.org/10.1002/lol2.70003 |
| work_keys_str_mv | AT kellysaho gastransfervelocityk600increaseswithdischargeinsteepstreamsbutnotinlowslopestreams AT kaelinmcawley gastransfervelocityk600increaseswithdischargeinsteepstreamsbutnotinlowslopestreams AT robertohalljr gastransfervelocityk600increaseswithdischargeinsteepstreamsbutnotinlowslopestreams AT robertthensley gastransfervelocityk600increaseswithdischargeinsteepstreamsbutnotinlowslopestreams AT walterkdodds gastransfervelocityk600increaseswithdischargeinsteepstreamsbutnotinlowslopestreams AT nicolasharrison gastransfervelocityk600increaseswithdischargeinsteepstreamsbutnotinlowslopestreams AT kelijgoodman gastransfervelocityk600increaseswithdischargeinsteepstreamsbutnotinlowslopestreams |