Evidence of Strong Flux Underestimation by Bulk Parametrizations During Drifting and Blowing Snow

• DOI: 10.1007/s10546-021-00653-x
• Publication Date: 2021-08-11T17:03:49Z
• Authors: Armin Sigmund; Jérôme Dujardin; Francesco Comola; Varun Sharma; Hendrik Huwald; Daniela Brito Melo; Naohiko Hirasawa; Kouichi Nishimura; Michael Lehning
• Keywords: Parametrization (atmospheric modeling)

The influence of drifting and blowing snow on surface mass energy exchange is difficult to quantify due limitations in both measurements models, but still potentially very important over large areas with seasonal or perennial cover. We present a unique set that make possible the calculation turbulent moisture, heat, momentum fluxes during conditions snow. From data, Monin-Obukhov estimation bulk compared eddy-covariance-derived fluxes. In addition, large-eddy simulations sublimating particles are used more completely understand vertical profiles For storm period at Syowa S17 station East Antarctica, parametrization severely underestimates near-surface heat moisture agree eddy-covariance when minimally disturbed by particles. conclude overall surfaces much intense than current models suggest, which has implications for total balance Antarctic ice sheet cryosphere.The online version supplementary material available 10.1007/s10546-021-00653-x.