Numerical Modelling of the Topographic Wetness Index: An Analysis at Different Scales
نویسندگان
چکیده
منابع مشابه
On the calculation of the topographic wetness index: evaluation of different methods based on field observations
The topographic wetness index (TWI, ln(a/tanβ)), which combines local upslope contributing area and slope, is commonly used to quantify topographic control on hydrological processes. Methods of computing this index differ primarily in the way the upslope contributing area is calculated. In this study we compared a number of calculation methods for TWI and evaluated them in terms of their correl...
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using the attraction model in remote sensing to evaluation of topographic wetness index (twi)
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The topographic wetness index (TWI), frequently used in approximately characterizing the spatial distribution of soil moisture and surface saturation within a watershed, has been widely applied in topography-related geographical processes and hydrological models. However, it is still questionable whether the current algorithms of TWI can adequately model the spatial distribution of topographic ...
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ژورنال
عنوان ژورنال: International Journal of Geosciences
سال: 2011
ISSN: 2156-8359,2156-8367
DOI: 10.4236/ijg.2011.24050