caa a22 4500 475777751 CHVBK 20180406123635.0 cr unu---uuuuu 170329e20001001xx s 000 0 eng 10.1023/A:1002795531073 doi (NATIONALLICENCE)springer-10.1023/A:1002795531073 An Intercomparison Among Four Models Of Blowing Snow [Elektronische Daten] [Jingbing Xiao, Richard Bintanja, Stephen Déry, Graham Mann, Peter Taylor] Four one-dimensional, time-dependent blowing snow models areintercompared. These include three spectral models, PIEKTUK-T,WINDBLAST, SNOWSTORM, and the bulk version of PIEKTUK-T,PIEKTUK-B. Although the four models are based on common physicalconcepts, they have been developed by different research groups. Thestructure of the models, numerical methods, meteorological field treatmentand the parameterization schemes may be different. Under an agreed standardcondition, the four models generally give similar results for the thermodynamic effects of blowing snow sublimation on the atmospheric boundary layer, including an increase of relative humidity and a decrease of the ambient temperature due to blowing snow sublimation. Relative humidity predicted by SNOWSTORM is lower than the predictions of the other models, which leads to a larger sublimation rate in SNOWSTORM. All four models demonstrate that sublimation rates in a column of blowing snow have a single maximum in time, illustrating self-limitation of the sublimation process of blowing snow. However, estimation of the eddy diffusioncoefficient for momentum (Km), and thereby the diffusion coefficients for moisture (Kw) and for heat (Kh), has a significant influence on the process. Sensitivitytests with PIEKTUK-T show that the sublimation rate can be approximately constant with time after an initial phase, if Km is a linear function with height. In order to match the model results with blowing snow observations, some parameters in the standard run, such as settling velocity of blowing snow particles in these models, may need to be changed to more practical values. Kluwer Academic Publishers, 2000 Blowing snow nationallicence Diffusion coefficient nationallicence Intercomparison nationallicence Sublimation nationallicence Suspension nationallicence Xiao Jingbing Department of Earth and Atmospheric Science, York University, 4700 Keele Street, M3J 1P3, Toronto, Ontario, Canada aut Bintanja Richard Institute for Marine and Atmospheric Research Utrecht, Utrecht University, P.O. Box 80005, 3508 TA, Utrecht, The Netherlands aut Déry Stephen Department of Atmospheric and Oceanic Sciences, McGill University, 805 Sherbrooke St. W., H3A 2K6, Montréal, Québec, Canada aut Mann Graham The Environment Centre, The University of Leeds, LS2 9JT, Leeds, U.K. aut Taylor Peter Department of Earth and Atmospheric Science, York University, 4700 Keele Street, M3J 1P3, Toronto, Ontario, Canada aut Boundary-Layer Meteorology Kluwer Academic Publishers 97/1(2000-10-01), 109-135 0006-8314 97:1<109 2000 97 10546 https://doi.org/10.1023/A:1002795531073 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1023/A:1002795531073 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Xiao Jingbing Department of Earth and Atmospheric Science, York University, 4700 Keele Street, M3J 1P3, Toronto, Ontario, Canada aut NATIONALLICENCE 700 1- Bintanja Richard Institute for Marine and Atmospheric Research Utrecht, Utrecht University, P.O. Box 80005, 3508 TA, Utrecht, The Netherlands aut NATIONALLICENCE 700 1- Déry Stephen Department of Atmospheric and Oceanic Sciences, McGill University, 805 Sherbrooke St. W., H3A 2K6, Montréal, Québec, Canada aut NATIONALLICENCE 700 1- Mann Graham The Environment Centre, The University of Leeds, LS2 9JT, Leeds, U.K aut NATIONALLICENCE 700 1- Taylor Peter Department of Earth and Atmospheric Science, York University, 4700 Keele Street, M3J 1P3, Toronto, Ontario, Canada aut NATIONALLICENCE 773 0- Boundary-Layer Meteorology Kluwer Academic Publishers 97/1(2000-10-01), 109-135 0006-8314 97:1<109 2000 97 10546 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer