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Characterizing Air Temperature Changes in the Tarim Basin over 1960–2012

机译：塔里木盆地1960–2012年气温变化特征

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There has been evidence of warming rate varying largely over space and between seasons. However, little has been done to evaluate the spatial and temporal variability of air temperature in the Tarim Basin, northwest China. In this study, we collected daily air temperature from 19 meteorological stations for the period of 1960–2012, and analyzed annual mean temperature (AMT), the annual minimum (Tmin) and maximum temperature (Tmax), and mean temperatures of all twelve months and four seasons and their anomalies. Trend analyses, standard deviation of the detrended anomaly (SDDA) and correlations were carried out to characterize the spatial and temporal variability of various mean air temperatures. Our data showed that increasing trend was much greater in the Tmin (0.55°C/10a) than in the AMT (0.25°C/10a) and Tmax (0.12°C/10a), and the fluctuation followed the same order. There were large spatial variations in the increasing trends of both AMT (from −0.09 to 0.43 °C/10a) and Tmin (from 0.15 to 1.12°C/10a). Correlation analyses indicated that AMT had a significantly linear relationship with Tmin and the mean temperatures of four seasons. There were also pronounced changes in the monthly air temperature from November to March at decadal time scale. The seasonality (i.e., summer and winter difference) of air temperature was stronger during the period of 1960–1979 than over the recent three decades. Our preliminary analyses indicated that local environmental conditions (such as elevation) might be partly responsible for the spatial variability, and large scale climate phenomena might have influences on the temporal variability of air temperature in the Tarim Basin. In particular, there was a significant correlation between index of El Niño-Southern Oscillation (ENSO) and air temperature of May (P = 0.004), and between the index of Pacific Decadal Oscillation (PDO) and air temperature of July (P = 0.026) over the interannual to decadal time scales.
机译：有证据表明，增暖率在整个空间和不同季节之间存在很大差异。但是，很少有人评估中国西北塔里木盆地气温的时空变化。在这项研究中，我们收集了1960-2012年期间19个气象站的每日气温，并分析了年平均温度（AMT），年最低温度（Tmin）和最高温度（Tmax）以及所有十二个月的平均温度和四个季节及其异常。进行趋势分析，趋势趋势异常（SDDA）的标准偏差以及相关性，以表征各种平均气温的时空变化。我们的数据显示，Tmin（0.55°C / 10a）的上升趋势远大于AMT（0.25°C / 10a）和Tmax（0.12°C / 10a），并且波动遵循相同的顺序。 AMT（从-0.09到0.43°C / 10a）和Tmin（从0.15到1.12°C / 10a）的上升趋势都有很大的空间变化。相关分析表明，AMT与Tmin和四个季节的平均温度之间存在显着的线性关系。从11月到3月，每月的气温也以年代际尺度明显变化。 1960年至1979年期间，气温的季节性（即夏季和冬季差异）强于最近的三十年。我们的初步分析表明，局部环境条件（例如海拔）可能是造成空间变异的部分原因，而且大规模的气候现象可能会影响塔里木盆地气温的时变性。特别是，厄尔尼诺-南方涛动指数（ENSO）与5月的气温（P = 0.004），太平洋十月份涛动指数（PDO）与7月的气温（P = 0.026）之间存在显着相关性。 ）跨年度到十年的时间尺度。

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