Comparison between the interannual variability of snow parameters derived from SSM/I and the Ob river discharge

被引:25
作者
Grippa, M
Mognard, N
Le Toan, T
机构
[1] Ctr Etud Spatiales Biosphere, F-31401 Toulouse, France
[2] Lab Etud Geophys & Oceanog Spatiales, Toulouse, France
关键词
remote sensing; snow depth; snowmelt; runoff; microwave radiometry;
D O I
10.1016/j.rse.2005.06.001
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
This paper analyses the relationship between the interannual variations of snow depth and snowmelt date and river discharge measurements in the Ob river basin. The snow parameters are derived from passive microwave remote sensing measurements by SSM/I during the time period 1989-2001. We find a significant correlation between the snowmelt date and the runoff in May (correlation coefficient R=-0.92) and between the winter snow depth and the runoff in June (R=0.61) measured at the Ob estuary. These results validate the methods used to derive the interannual variability of the snow parameters, particularly the snow depth. In such vast and remote regions, this is fundamental for monitoring and predicting snow related flood events. Furthermore, the results obtained can be very useful to improve the description of the snow-runoff relationship in global hydrological models. (C) 2005 Elsevier Inc. All rights reserved.
引用
收藏
页码:35 / 44
页数:10
相关论文
共 24 条
  • [21] Xie PP, 1997, B AM METEOROL SOC, V78, P2539, DOI 10.1175/1520-0477(1997)078<2539:GPAYMA>2.0.CO
  • [22] 2
  • [23] Streamflow response to seasonal snow cover extent changes in large Siberian watersheds
    Yang, DQ
    Robinson, D
    Zhao, YY
    Estilow, T
    Ye, BS
    [J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 2003, 108 (D18) : 1 - 14
  • [24] Yang DQ, 2002, J GEOPHYS RES-ATMOS, V107, DOI 10.1029/2002JD002542