TY - JOUR
T1 - Measurements of snow mass flux and transport rate at different particle diameters in drifting snow
AU - Sugiura, Konosuke
AU - Nishimura, Kouichi
AU - Maeno, Norikazu
AU - Kimura, Tadashi
N1 - Funding Information:
This study was supported in part by a Grant-in-Aid for Cooperative Research and Scientific Research of the Ministry of Education, Science and Culture, Japan. The authors would like to thank Prof. E. Akitaya, Dr. R. Naruse, Dr. H. Narita, Dr. M. Arakawa and Dr. T. Sone of the Institute of Low Temperature Science for their valuable advice and discussions. Special thanks are due to Niigata Electric for providing the SPC system. The authors are grateful to the helpful comments given by the anonymous referees.
PY - 1998/4
Y1 - 1998/4
N2 - Wind tunnel experiments were carried out to investigate the snow mass flux and the snow transport rate as functions of friction velocity and particle diameter. Friction velocities obtained with an ultra sonic anemometer was from u = 0.15 to 0.39 m/s. The number flux and the particle size of drifting snow were measured with a new snow particle counter at heights of 16 to 61 mm above the snow surface. The horizontal snow mass flux at each particle diameter d, qd, decreased exponentially with height qd ∝ exp(-λdz/(u2/g)), where z is the geight, g is the acceleration due to gravity and λd is a dimensionless parameter. The constant λd was independent of friction velocity, and at larger particle diameters, approached to 0.3. The total snow transport rate increased with the power (3.96) of friction velocity, but the total snow transport rate at each particle diameter showed that the power decreased with increasing particle diameter, and approach to 3.
AB - Wind tunnel experiments were carried out to investigate the snow mass flux and the snow transport rate as functions of friction velocity and particle diameter. Friction velocities obtained with an ultra sonic anemometer was from u = 0.15 to 0.39 m/s. The number flux and the particle size of drifting snow were measured with a new snow particle counter at heights of 16 to 61 mm above the snow surface. The horizontal snow mass flux at each particle diameter d, qd, decreased exponentially with height qd ∝ exp(-λdz/(u2/g)), where z is the geight, g is the acceleration due to gravity and λd is a dimensionless parameter. The constant λd was independent of friction velocity, and at larger particle diameters, approached to 0.3. The total snow transport rate increased with the power (3.96) of friction velocity, but the total snow transport rate at each particle diameter showed that the power decreased with increasing particle diameter, and approach to 3.
UR - http://www.scopus.com/inward/record.url?scp=0032047377&partnerID=8YFLogxK
U2 - 10.1016/S0165-232X(98)00002-0
DO - 10.1016/S0165-232X(98)00002-0
M3 - 学術論文
AN - SCOPUS:0032047377
SN - 0165-232X
VL - 27
SP - 83
EP - 89
JO - Cold Regions Science and Technology
JF - Cold Regions Science and Technology
IS - 2
ER -