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首页> 外文期刊>Journal of Geophysical Research, D. Atmospheres: JGR >Is There a Change From a Warm-Dry to a Warm-Wet Climate in the Inland River Area of China? Interpretation and Analysis Through Surface Water Balance
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Is There a Change From a Warm-Dry to a Warm-Wet Climate in the Inland River Area of China? Interpretation and Analysis Through Surface Water Balance

机译：在中国内陆河区的温湿气候中有变化是否有变化？ 地表水平解释与分析

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摘要

The Inland River Area of China (IRAC), being the most water-stressed region in the world, faced with increasingly severe ecological degradation risk and water shortage issue under global climate warming. Previous studies indicated that the climate of IRAC have changed from warm-dry to warm-wet, because both precipitation (P) and air temperature have increased. However, the analysis in this study, considering the effects of climate change on hydrologic cycle rather than simply on climate conditions, indicates that there has been no substantial change from a warm-dry to a warm-wet climate in the IRAC during 1948-2010. The Standardized Moisture Anomaly Index (SZI), which is a comprehensive multiscalar drought indicator, was used to identify the patterns of dry and wet weather. The Global Land Data Assimilation System 2 (GLDAS2) Noah model, based on advanced land surface modeling and data assimilation techniques, were used to provide input surface water-energy variables for calculating SZI. The results show that both the forcing data and the output of the GLDAS2 Noah model are in good agreement with different types of observations. The variabilities in SZI are more consistent with evidence of multiple droughts (including residual water/energy ratio, evapotranspiration deficit, and historical drought records) than the Standardized Precipitation Index (SPI) and the Standardized Precipitation Evapotranspiration Index (SPEI). Based on SZI, it is known that increases in the water supply (P) are balanced by the increased water demand caused by significant climate warming; that is, terrestrial water storage has generally remained balanced over the past four decades.
机译：中国内陆河区（IRAC）是世界上最省油的地区，面临着越来越严峻的生态退化风险和全球气候变暖的水资源短缺问题。以前的研究表明，IRAC的气候从暖干到温湿性的变化，因为沉淀（P）和空气温度都有增加。然而，考虑到气候变化对水文周期而不是简单地对气候条件的影响，表明在1948 - 2010年期间，在IRAC中的温湿气候中没有大幅变化，这一点没有大幅变化。 。标准化的水分异常指数（SZI）是一种综合的MultiScalar干旱指标，用于识别干燥和潮湿的天气模式。基于先进的陆地表面建模和数据同化技术，全球土地数据同化系统2（GLDAS2）诺亚模型用于为计算SZI提供输入表面水能变量。结果表明，迫使数据和GLDAS2 NoAh模型的输出都与不同类型的观测结果吻合良好。 SZI中的可变性更符合多种干旱的证据（包括残留的水/能量比，蒸散蒸腾缺陷症和历史干旱记录），而不是标准化沉淀指数（SPI）和标准化沉淀蒸发蒸腾指数（SPEI）。基于SZI，已知水供应量（P）的增加通过增加气候变暖引起的水需求增加;也就是说，在过去的四十年里，陆地储存一般保持平衡。

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    Biao Long; Baoqing Zhang; Chansheng He; Rui Shao; Wei Tian;

  • 作者单位

    Key Laboratory of Western China's Environmental Systems (Ministry of Education) College of Earth and Environmental Sciences Lanzhou University Lanzhou China;

    Key Laboratory of Western China's Environmental Systems (Ministry of Education) College of Earth and Environmental Sciences Lanzhou University Lanzhou China;

    Key Laboratory of Western China's Environmental Systems (Ministry of Education) College of Earth and Environmental Sciences Lanzhou University Lanzhou China;

    Key Laboratory of Western China's Environmental Systems (Ministry of Education) College of Earth and Environmental Sciences Lanzhou University Lanzhou China;

    Key Laboratory of Western China's Environmental Systems (Ministry of Education) College of Earth and Environmental Sciences Lanzhou University Lanzhou China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 地球物理学;
  • 关键词

    There; Change; Warm-Dry;

    机译：那里;改变;温干;

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