Carbon Fluxes in the Florida Everglades During CMS BlueFlux
Erin Delaria, NASA GSFC, erin.r.delaria@nasa.gov (Presenter)
Glenn M Wolfe, NASA GSFC, glenn.m.wolfe@nasa.gov
Reem Aida Hannun, University of Pittsburgh, reem.a.hannun@nasa.gov
Kaitlyn Blanock, University of Pittsburgh, kab396@pitt.edu
Kenneth Lee Thornhill, NASA/SSAI, kenneth.l.thornhill@nasa.gov
Paul A Newman, NASA GSFC, paul.a.newman@nasa.gov
Leslie Lait, NASA GSFC, leslie.r.lait@nasa.gov
Christopher Holmes, Florida State University, cdholmes@fsu.edu
Benjamin Poulter, NASA GSFC, benjamin.poulter@nasa.gov
Wetland ecosystems play a significant role in the sequestration of 'blue carbon.' However, their role in carbon sequestration is partly counterbalanced by the emission of methane (CH4). As part of NASA's Carbon Monitoring System (CMS) program, the BlueFlux project aims to establish a comprehensive and long-term dataset of CO2 and CH4 fluxes across Southern Florida. This project employs both ground-based and airborne measurements to assess carbon exchange in different environments, including mangroves, sawgrass marshes, and swamp forests. The airborne flux measurements are conducted using meteorological and trace gas sensors installed on a Dynamic Aviation King Air B200 aircraft. This setup allows for extensive spatial coverage and enables the measurement of carbon fluxes over large areas. Ecosystem-atmosphere exchange fluxes are calculated using airborne eddy covariance coupled with wavelet transforms. We present the findings and data obtained from research flights conducted in April 2022, October 2022, February 2023, and April 2023 over Everglades National Park (ENP) and Big Cypress National Preserve (BCNP). We observe a large degree of spatial heterogeneity in the rates of CH4 and CO2 exchange, influenced primarily by season, vegetation type, ecosystem productivity, and surface water extent. Our observations indicate net carbon removal rates during flight periods of 7-14 Tg CO2/yr over the entire ENP and BCNP region, with CH4 emissions offsetting CO2 uptake rates by 2-13 %.
Associated Project(s):
Poster Location ID: 34
Presentation Type: Poster
Session: Poster Session 1
Session Date: Wednesday (9/27) 1:15 PM