TY - JOUR
T1 - On the width and motion of a rain/snow boundary
AU - Stewart, Ronald E.
AU - McFarquhar, Greg Michael
PY - 1987/2
Y1 - 1987/2
N2 - A rain/snow boundary moves towards the adjacent rain region owing to the progressive cooling of the atmosphere caused by melting snow. The dependence of the width and speed of the boundary on the initial lapse rate, the size of the largest snowflake, the snowflake density, the precipitation rate, and the horizontal temperature gradient is determined using a numerical model. The dependence on relative humidity is explained qualitatively. The results from these calculations predict speeds of about 0.5 m s−1 and widths of about 10 km after 2 days using reasonable values of the governing parameters in a precipitation rate of 1 mm h−1.
AB - A rain/snow boundary moves towards the adjacent rain region owing to the progressive cooling of the atmosphere caused by melting snow. The dependence of the width and speed of the boundary on the initial lapse rate, the size of the largest snowflake, the snowflake density, the precipitation rate, and the horizontal temperature gradient is determined using a numerical model. The dependence on relative humidity is explained qualitatively. The results from these calculations predict speeds of about 0.5 m s−1 and widths of about 10 km after 2 days using reasonable values of the governing parameters in a precipitation rate of 1 mm h−1.
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U2 - 10.1029/WR023i002p00343
DO - 10.1029/WR023i002p00343
M3 - Article
AN - SCOPUS:0023524229
SN - 0043-1397
VL - 23
SP - 343
EP - 350
JO - Water Resources Research
JF - Water Resources Research
IS - 2
ER -