Intercomparison of sensible and latent heat flux measurements from combined eddy covariance, energy balance, and Bowen ratio methods above a grassland prairie.

ABSTRACT: We present a comparison of four different methods of measuring sensible (H) and latent (LE) heat fluxes for a year over a mixed grass prairie ecosystem in the Nebraska SandHills [eddy covariance (EC), energy balance/Bowen ratio (EBBR), residual energy (RES), modified Bowen ratio (MBR) methods]. Additionally, we developed a set of quality control criteria for each method and present a simplification to the traditional EBBR setup. Using EC as reference, all methods yielded similar estimates of yearly H (regression slopes (m) ~ 2% from unity; H_EC > H_EBBR, H_RES, and H_MBR). For yearly LE, EBBR and RES yielded similar estimates with EC (m ~ 2% from unity; LE_EC < LE_EBBR and LE_RES), while a larger bias was found from MBR

SUBMITTER: Billesbach DP 

PROVIDER: S-EPMC11413320 | biostudies-literature | 2024 Sep

REPOSITORIES: biostudies-literature