27 Methane and Turbulence Dynamics Within the Canopy of an Amazonian Palm Swamp Peatland

Monday, 1 May 2023
Jeffrey D. Wood, Univ. of Missouri, Columbia, MO; and D. T. Roman and T. J. Griffis

Tropical peatlands are a globally important source of methane (CH4) emissions. Yet, there are persistent gaps in process-level understanding of the biogeochemical cycling and transport processes that give rise to ecosystem scale CH4 emissions from these systems. We initiated the first ecosystem scale observations of CH4 emissions from peatland forests in the Amazon. Recently, we initiated measurements of the CH4 concentration profile and within-canopy turbulence with the goal of determining the dynamics of the vertical CH4 source distribution using inverse Lagrangian dispersion modeling. Here, we present preliminary results of CH4 profile and canopy turbulence dynamics. We will focus on characterizing the canopy turbulence environment and coupling to the surface layer, and dynamics of the mean CH4 profile.
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