1 / 17

Dissolved Oxygen and System Metabolism in Flowing Waters: Insights from Natural Disasters

Explore the relationship between dissolved oxygen, system metabolism, and natural disasters in flowing waters. Includes insights from GLOF events. Data and isopleths analysis from Reid, CIEP, and the University of Montana.

alena
Télécharger la présentation

Dissolved Oxygen and System Metabolism in Flowing Waters: Insights from Natural Disasters

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. DISSOLVED OXYGEN and system metabolism in flowing waters Including a bonus natural disaster (GLOF) B.L. Reid Centro de Investigación en Ecosístemas de la Patagonia (CIEP) Flathead Lake Biological Station The University of Montana

  2. DO Isopleths: Surficial Groundwater

  3. 0 2 4 6 8 10 0 3 6 9 12 0 2 2 4 4 6 6 8 0 Jun 04 2 Aug 04 Nov 04 4 Jan 05 6 May 05 8 DO Isopleths: Surficial Groundwater

  4. 12 9 Mean DO (mg/l) 6 3 0 30 20 10 Flowpath Residence Time - Tau (d) DO Isopleths: Surficial Groundwater

  5. 12 DO (mg/l) 8 4 0 Jun-04 Sep-04 Dec-04 Mar-05 Jun-05 Sep-05 Dec-05 Mar-06

  6. Recharge - river Horizontal Flow Zone 8 Discharge Zone 6 Resp (μg O2/lsed/hr) 4 2 0

  7. “A skillful limnologist can probably learn more about the nature of a lake from a series of oxygen determinations than from any other kind of chemical data” – G. Evelyn Hutchinson 300 300 River 250 wells 250 y = 18.119x - 13.929 200 2 R = 0.8848 R 2 = 0.704 DSi (μmol/l) avg NOx (ug/l) 150 200 100 50 150 0 0 2 4 6 8 10 12 avg DO (mg/l) 100 0 100 200 300 400 DO (μmol/l)

  8. BGC along aquifer flowpaths: threshold response…. 500 River Wells 400 300 2 R = 0.9183 Specific Conducrance (uS/cm-2s-1) 200 100 0 9 pH 8 2 R = 0.703 7 0 2 4 6 8 10 12 mean DO (mg/l)

  9. River Metabolism: Rio Coyhaique, Chile

  10. Daytime: DO = P – R + Raer Nightime: DO = – R + Raer 9 Sep 2008

  11. Assumptions on Ecosystem Metabolism? 25 Nov 2008

  12. Is this Robust Pattern? Saturation (270m)

  13. Environmental Stress?

  14. Metabolism in the Landscape: Rivers vs. Lakes? From A. Stehr, EULA U de Concepcion

  15. 3370

  16. Outlet LG Carrera Balsa Baker (km 50) Tortel (km 150)

  17. Outlet: Lago Traiguen Lago Sauce Grande Outlet: Lago Yulton

More Related