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近30年塔里木盆地浮尘天气及持续浮尘滞空的气候特征

孟露 赵天良 何清 杨兴华 买买提艾力·买买提依明 杨帆 周成龙 霍文 王敏仲 潘红林 杨婕

孟露,赵天良,何清,杨兴华,买买提艾力·买买提依明,杨帆,周成龙,霍文,王敏仲,潘红林,杨婕. 2022. 近30年塔里木盆地浮尘天气及持续浮尘滞空的气候特征. 气象学报,80(2):322-333 doi: 10.11676/qxxb2022.022
引用本文: 孟露,赵天良,何清,杨兴华,买买提艾力·买买提依明,杨帆,周成龙,霍文,王敏仲,潘红林,杨婕. 2022. 近30年塔里木盆地浮尘天气及持续浮尘滞空的气候特征. 气象学报,80(2):322-333 doi: 10.11676/qxxb2022.022
Meng Lu, Zhao Tianliang, He Qing, Yang Xinghua, Mamtimin Ali, Yang Fan, Zhou Chenglong, Huo Wen, Wang Minzhong, Pan Honglin, Yang Jie. 2022. Climatic characteristics of floating dust and persistent floating dust over the Tarim basin in the recent 30 years. Acta Meteorologica Sinica, 80(2):322-333 doi: 10.11676/qxxb2022.022
Citation: Meng Lu, Zhao Tianliang, He Qing, Yang Xinghua, Mamtimin Ali, Yang Fan, Zhou Chenglong, Huo Wen, Wang Minzhong, Pan Honglin, Yang Jie. 2022. Climatic characteristics of floating dust and persistent floating dust over the Tarim basin in the recent 30 years. Acta Meteorologica Sinica, 80(2):322-333 doi: 10.11676/qxxb2022.022

近30年塔里木盆地浮尘天气及持续浮尘滞空的气候特征

doi: 10.11676/qxxb2022.022
基金项目: 国家自然科学基金项目(41905014、42030612、41875019)、新疆气象局引导性计划项目(YD202206)、新疆气象局高层次人才项目(2021-46)、中亚大气科学研究基金项目(CAAS201913)
详细信息
    作者简介:

    孟露,主要从事沙漠大气边界层数值模拟。E-mail:menglu@idm.cn

    通讯作者:

    赵天良,主要从事大气物理与大气环境研究。E-mail:tlzhao@nuist.edu.cn

  • 中图分类号: P461+.3

Climatic characteristics of floating dust and persistent floating dust over the Tarim basin in the recent 30 years

  • 摘要: 塔里木盆地沙尘天气具有独特的持续浮尘滞空区域特征。目前塔里木盆地浮尘天气的气候学特征认知依然停留在1990年,亟待认知近30年塔里木盆地浮尘天气的变化特征。因此,利用1991—2020年塔里木盆地27个观测站浮尘天气观测资料,分析塔里木盆地近30年浮尘天气的时、空变化特征,并给出盆地持续浮尘天气的频次分布,以加深对塔里木盆地浮尘“滞空”变化特征的认识。近30年(1991—2020年)塔里木盆地浮尘日数年际变化趋势呈“V”型特征,即1991—2011年浮尘天气呈现整体下降趋势,但2012年以来反转为上升趋势。塔里木盆地南部皮山—和田—策勒—民丰一线地区维持一个浮尘天气频发区的极值中心,且进入21世纪以来,盆地南部这一浮尘天气频发区的极值中心东移至民丰地区,中心值为152 d。塔里木盆地浮尘天气具有独特的区域特征,近30年盆地持续2 d及其以上的浮尘天气占浮尘日总数的64.25%。塔里木盆地南部和田与策勒等地,甚至出现持续30 d以上的月时间尺度持续性极端浮尘事件。给出了一个值得关注的塔里木盆地浮尘“滞空”的沙尘气候特征。

     

  • 图 1  塔里木盆地及周边27个观测站点位置 (色阶为海拔高度)

    Figure 1.  Geographic locations of 27 observation sites over the Tarim basin and its surrounding areas and terrain elevation (color shaded)

    图 2  近30年塔里木盆地及周边年平均浮尘天气日数 (单位:d) 空间分布 (彩色散点代表浮尘天气日数;色阶表示海拔高度;“皮山-和田-策勒-民丰”一线用紫色箭头标出)

    Figure 2.  Spatial distribution of floating dust days over the Tarim basin and its surrounding areas averaged in the recent 30 years (Color scatter points represent floating dust days,and color shadings show terrain elevation;the line "Pishan-Hotan-Cele-Minfeng" is marked by the purple arrow)

    图 3  1991—2020年塔里木盆地平均浮尘天气日数的年际变化趋势 (灰色柱) 及1991—2010年拟合曲线y1 (绿色直线),2011—2020年拟合曲线y2 (橙色直线),Savitzky-Golay平滑曲线 (红色虚线)

    Figure 3.  Interannual variation trend of floating dust days (d) in the Tarim basin averaged from 1991 to 2020 (gray colum bars),fitting curve y1 from 1991 to 2010 (green line),fitting curve y2 from 2011 to 2020 (orange line), and Savitzky-Golay smooth curve (red dotted line)

    图 4  1991—2020年塔里木盆地各季 (a. 春季,b. 夏季,c. 秋季,d. 冬季) 平均浮尘日数的年际变化及拟合曲线 (y1:蓝色直线,y2:红色直线)

    Figure 4.  Interannual variation trends and fitting curves of floating dust days in (a) spring, (b) summer, (c) autumn, and (d) winter over the Tarim Basin averaged from 1991 to 2020 (y1:blue line,y2:red line)

    图 5  1991—2020年塔里木盆地平均浮尘天气日数及标准偏差的月际变化 (红色圆点代表平均浮尘天气日数,黑色竖线到圆点的距离代表标准差)

    Figure 5.  Monthly variation of floating dust days and standard deviation in the Tarim Basin averaged from 1991 to 2020 (The red dots represent the average number of floating dust days,and the distance from the black vertical lines to the red dots represent the standard deviation)

    图 7  塔里木盆地不同站点浮尘天气日数的年代际变化趋势 (a. 逐年代递增型, b. 逐年代递减型,c. 21世纪初期最多型, d. 21世纪初期最少型)

    Figure 7.  Interdecadal variation trend of floating dust days at different stations in the Tarim basin (a. the increasing type year by year,b. the decreasing type year by year,c. the most frequent type in the early 21st century,d. the least frequency type in the early 21st century)

    图 8  1991—2020年塔里木盆地浮尘天气日数年代际变化的空间分布

    Figure 8.  Spatial distribution of interdecadal variation of floating dust days in the Tarim basin from 1991 to 2020

    图 9  1991—2020年塔里木盆地持续2 d及以上 (a) 和持续10 d及以上 (b) 持续性浮尘天气的频次分布 (次数:灰色柱,百分比:红色点线)

    Figure 9.  Frequency distribution of persistent floating dust lasting for 2 d or more (a),and lasting for 10 d or more (b) in the Tarim basin from 1991 to 2020 (occurrence times:gray column bars, percentage:red dotted line)

    图 10  1991—2020年塔里木盆地持续2—5 d (a)、持续6—10 d (b)、持续11—30 d (c)、持续31 d及以上 (d) 浮尘天气频次的空间分布 (彩色散点代表不同持续浮尘天气出现次数,色阶表示海拔高度)

    Figure 10.  Spatial distribution of persistent floating dust frequency (a) lasting for 2—5 d, (b) lasting for 6—10 d,(c) lasting for 11—30 d,and (d) lasting for 31 d or more in the Tarim basin from 1991 to 2020 (color scatter points represent the occurrence times of different persistent floating dust,and color shadings represent terrain elevation)

    表  1  塔里木盆地及周边27个观测站站点信息

    Table  1.   Information of 27 observation stations over the Tarim basin and its surrounding areas

    序号站点序号站点序号站点序号站点序号站点
    1轮台2库尔勒3尉犁4铁干里克5若羌
    6且末7塔中8库车9阿克苏10阿拉尔
    11柯坪12巴楚13麦盖提14岳普湖15喀什
    16莎车17叶城18皮山19和田20于田
    21民丰22策勒23阿图什24巴音布鲁克25乌恰
    26吐尔尕特27塔什库尔干
    下载: 导出CSV

    表  2  1991—2020年塔里木盆地浮尘天气变化的统计特征参数

    Table  2.   Statistical characteristic parameters of floating dust change in the Tarim basin from 1991 to 2020

    季节拐点年份拟合方程相关系数r显著性检验
    y1y2y1y2y1y2
    2012y1=−0.31x+654.96y2=2.11x−4226.20.300.60*
    2013y1=−0.51x+1032.43y2=1.24x−2478.90.770.54**
    2011y1=−0.50x+1019.2y2=0.63x−1253.40.770.44**
    2011y1=0.03x−52.29y2=1.25x−2510.40.10.73*
     *通过0.05显著性水平t检验,**通过0.01显著性水平t检验。
    下载: 导出CSV
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出版历程
  • 收稿日期:  2021-09-13
  • 录用日期:  2022-02-28
  • 修回日期:  2022-01-23
  • 网络出版日期:  2022-02-22

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