Watershed

Oral

397967 - Investigation of environmental similitudes and emergent scaling of CO2 fluxes in coastal wetlands

Tuesday, June 5
10:30 AM - 12:00 PM
Location: Greenway IJ
Co-Authors: Omar Abdul-Aziz, Morgantown, WV, USA – West Virginia University

Coastal wetlands are among the most productive and dynamic ecosystems on the planet. Subject to the complex climatic-biogeochemical-ecological interactions, it is difficult to characterize and robustly predict the CO2 fluxes across wetlands. We derived meaningful dimensionless numbers utilizing the concept of similitude and dimensional analysis from fluid mechanics. Field data collected during May-October 2013 from four salt marshes in Waquoit Bay and Great Pond estuaries, MA were used to investigate the similitude based general patterns and scaling of CO2 fluxes. Graphical exploration of the formulated dimensionless numbers with the measured dataset indicated an emergence of a generalized characteristics curve and different environmental regimes of CO2 fluxes. Based on the identified regimes, non-linear scaling relationships of the CO2 fluxes with the environmental variables were determined. The scaling relationships suggested a higher scale dependence of CO2 fluxes with soil temperature than with the photosynthetically active radiation and porewater salinity. The estimated scaling relationships can aid the development of a robust predictive model of wetland CO2 fluxes under a changing climate and environment.

Khandker S. Ishtiaq

Post-doctoral Research Associate, Department of Civil and Environmental Engineering
West Virginia University

Khandker S. Ishtiaq currently works at the Department of Civil and Environmental Engineering, West Virginia University as a post-doctoral research associate. Khandker does research at the intersection of water resources and ecological/ecohydrological engineering. His research interestes cover a range of topics that include watershed hydrology and hydraulics, water quality modeling, prediction of wetland carbon, water and energy fluxes, and scaling and similitudes of ecohydrological variables at multi-temporal scales.

Presentation(s):

Send Email for Khandker Ishtiaq


Assets

397967 - Investigation of environmental similitudes and emergent scaling of CO2 fluxes in coastal wetlands



Attendees who have favorited this

Please enter your access key

The asset you are trying to access is locked. Please enter your access key to unlock.

Send Email for Investigation of environmental similitudes and emergent scaling of CO2 fluxes in coastal wetlands