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The spatio-temporal variability of surface soil moisture upscaled to satellite footprint with a in-situ multiyear dataset in semi-arid Mongolian grassland
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- Kobayashi Kenshi
- Graduate school of Life and Environmental Sciences, University of Tsukuba
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- Asanuma Jun
- Center for Research in Isotopes and Environmental Dynamics, University of Tsukuba
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- Kaihotsu Ichiro
- Graduate School of Integrated Arts and Sciences, Hiroshima University
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- Davva G
- Institute of Meteorology, Hydrology and Environment, Mongolia
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- Oyunbaatar D
- Institute of Meteorology, Hydrology and Environment, Mongolia
Bibliographic Information
- Other Title
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- 長期観測によるモンゴル草原における衛星フットプリントスケール 土壌水分の時空間変動解析
Description
This study aims at evaluating the spatio-temporal variability of surface soil moisture at a scale of 104 km2 and at assessing the precipitation effects on the spatio-temporal variability of soil moisture in a semi-arid region through the analyses of data over 13-year period. The results show that higher spatial variability of soil moisture is found at intermediate soil moisture, while lower spatial variability is at drier condition. It is also found that the effect of the precipitation on soil moisture variability is largest when higher spatial variability of precipitation occurs with drier initial soil moisture. Moreover, long-term mean spatial pattern of soil moisture depends partly on that of precipitation, though the dependence is larger when mean soil moisture is lower, since the spatial pattern of soil moisture changes during transition period between dry and wet conditions. The results provide an insight into the spatio-temporal variability of soil moisture at satellite footprint scale, especially induced by precipitation.
Journal
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- Proceeding of Annual Conference
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Proceeding of Annual Conference 28 (0), 100047-, 2015
THE JAPAN SOCIETY OF HYDROLOGY AND WATER RESOURCES
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Details 詳細情報について
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- CRID
- 1390282680688624896
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- NII Article ID
- 130005491835
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- Text Lang
- ja
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- Data Source
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- JaLC
- CiNii Articles
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- Abstract License Flag
- Disallowed
