Study of the snow melt-freeze cycle using multi-sensor data and snow modelling

被引:25
作者
Cagnati, A
Crepaz, A
Macelloni, G
Pampaloni, P
Ranzi, R
Tedesco, M
Tomirotti, M
Valt, M
机构
[1] ARPAV, Ctr Valanghe Arabba, I-32020 Arabba, BL, Italy
[2] CNR, Ist Fis Applicata Nello Carrara, I-50127 Florence, Italy
[3] Univ Brescia, Dipartimento Ingn Civile, I-25123 Brescia, Italy
关键词
D O I
10.3189/172756504781830006
中图分类号
P9 [自然地理学];
学科分类号
0705 ; 070501 ;
摘要
The melt cycle of snow is investigated by combining ground-based microwave radiometric measurements with conventional and meteorological data and by using a hydrological snow model. Measurements at 2000 m a.s.l in the basin of the Cordevole river in the eastern Italian Alps confirm the high sensitivity of microwave emission at 19 and 37 GHz to the snow melt-freeze cycle, while the brightness at 6.8 GHz is mostly related to underlying soil. Simulations of snowpack changes performed by means of hydrological and electromagnetic models, driven with meteorological and snow data, provide additional insight into these processes and contribute to the interpretation of the experimental data.
引用
收藏
页码:419 / 426
页数:8
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