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EVALUATION AND COMPARISON OF METHODS FOR CALCULATING THORNTHWAITE MOISTURE INDEX

机译:荆棘岩湿度指数的评价与比较

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摘要

The use of Thomthwaite Moisture Index (TMI) as a means of classifying climatic zones and estimating the depth of design soil suction changes is now widely accepted in Australia. Over the last two decades, TMI-based contour maps for various parts of Australia have been published by a number of authors. However, reconciling these TMI maps is often difficult because different assumptions and equations were adopted in the study. There is no doubt that there are discrepancies between the various maps and their associated sets of TMI values due to the adoption of different TMI equations and methods for calculating potential evapotranspiration (PET) as well as differences in the quality, quantity and time span of data used in the computations. In this study, TMI values calculated using various assumptions and methods are compared and evaluated. It is hoped the results and discussion presented in this paper can promote a higher level of understanding of the use of TMI equations and methods and provide useful guidance for future TMI users.
机译:澳大利亚现在广泛接受使用追踪水分指数(TMI)作为分类气候区域和估算设计深度吸力变化的手段。在过去的二十年中,澳大利亚各地区的基于TMI的轮廓图已由许多作者发布。然而,调和这些TMI地图通常很困难,因为该研究中采用了不同的假设和方程。毫无疑问,由于采用不同的TMI方程和用于计算潜在的蒸散(PET)以及数据的质量,数量和时间跨度的差异,各种地图和它们相关的TMI值之间存在差异的TMI值之间存在差异。以及数据的质量,数量和时间跨度的差异用于计算。在该研究中,比较和评估使用各种假设和方法计算的TMI值。希望本文提出的结果和讨论可以促进对使用TMI方程和方法的使用程度,并为未来TMI用户提供有用的指导。

著录项

  • 来源
    《Australian Geomechanics》 |2017年第2期|共15页
  • 作者

    Xi Sun; Jie Li; Annan Zhou;

  • 作者单位

    School of Engineering RMIT University Melbourne Victoria;

    School of Engineering RMIT University Melbourne Victoria;

    School of Engineering RMIT University Melbourne Victoria;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 地质力学;
  • 关键词

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