TY  - JOUR
AU  - Barral H, Genthon C.
PY  - 2014//
TI  - Blowing snow in coastal Adélie Land, Antarctica: three atmospheric-moisture issues
T2  - TC
JO  - The Cryosphere
SP  - 1905
EP  - 1919
VL  - 8
IS  - 5
PB  - Copernicus GmbH
N2  - Three years of blowing snow observations and associated meteorology along a 7-m mast at site D17 in coastal Adelie Land are presented. The observations are used to address 3 atmospheric moisture issues related to the occurrence of blowing snow, a feature which largely affects many regions of Antarctica: 1) Blowing snow sublimation raises close to saturation the moisture content of the surface atmosphere, and atmospheric models and meteorological analyzes that do not carry blowing snow parameterizations areaffected by a systematic dry bias; 2) While snowpack modeling with a parameterization of surface snow erosion by wind can reproduce the variability of snow accumulation and ablation, ignoring the high levels of atmospheric moisture content associated with blowing snow results in overestimating surface sublimation affecting the energy budget of the snow-pack; 3) the well-known profile method to calculate turbulent moisture fluxes is not applicable when blowing snow occurs, because moisture gradients are weak due to blowing snow sublimation, and the impact of measurement uncertainties are strongly amplified in case of strong winds.Keywords: Antarctica, Snowpack, Surface Mass Balance, Katabatic flow, Blowing snow, Sublimation, Latent Heat Fluxes, Moisture, Observation, Modelling, Profile method,Monin and Obukhov similarity theory, Uncertainty propagation
SN  - 1994-0416
UR  - http://dx.doi.org/10.5194/tc-8-1905-2014
N1  - exported from refbase (http://publi.ipev.fr/polar_references/show.php?record=6015), last updated on Sat, 29 Jun 2024 17:56:51 +0200
ID  - BarralH2014
ER  -