In this study

we aimed to investigate the characteristic of seasonal snow at low hill area in Northeast. The time serials of snow parameters (snow depth

snow density and liquid water content) were discussed

based on the date collected by Snow Fork and ultrasonic snow deep sensor. The results showed that: The main period of snow cover was from November to February

and the correlative analysis showed that snow depth had a negative correlation with snow temperature and air temperature

while there was a positive correlation between it and snowfall. Most part of snow was melting at the period of 10:00 to 18:00. The snow depth had distinct positive relation to the snow temperature four hours ahead. At the beginning of snow covering (December 1st)

the snow density of the bottom layer and the surface layer was 0.198 g/cm3 and 0.126 g/cm3 respectively. It decreased gradually from the bottom layer to the surface one

and the snow cover density of middle 5-10 cm layer was greater than the surface and bottom ones when the depth hoar was appeared within bottom snow layer. The average of snow liquid water content within 0-5 cm

5-10 cm and 10-15 cm layer was 0.308%

0.319% and 0.205% respectively. The liquid water content of snow cover

which showed a single-peak type with the variation of depth in each snow cover layer

within middle 5-10 cm layer was greater than that at the surface and bottom ones. There was a positive correlation between the liquid water content of snow cover and its density (r=0.866

p<0.05). This study could provide fundamental data for the?generation?of?snowmelt?runoff

snowmelt erosion prevention and the assessment?of ecosystem fuction in the area of seasonal snow cover.