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1961-2014年新疆降水极值概率特征及拟合不确定性分析

江远安 尹宜舟 陈鹏翔 孙赫敏 樊静

气候变化研究进展2017,Vol.13Issue(1):52-60,9.
气候变化研究进展2017,Vol.13Issue(1):52-60,9.DOI:10.12006/j.issn.1673-1719.2016.162

1961-2014年新疆降水极值概率特征及拟合不确定性分析

Study on Probabilistic Characteristic and Uncertainty in Fitting of Precipitation Extremes over Xinjiang During 1961-2014

江远安 1尹宜舟 1陈鹏翔 2孙赫敏 1樊静3

作者信息

  • 1. 新疆气象局气候中心,乌鲁木齐 830002
  • 2. 中国气象局国家气候中心,北京 100081
  • 3. 中国气象局国家气候中心,北京 100081
  • 折叠

摘要

Abstract

The uncertainty of the probabilistic distribution of precipitation extremes over Xinjiang during 1961−2014 was discussed by using multi-function method. Results suggest that precipitation extremes easily occur in Xinjiang against the background of the climate change from warm-dry to warm-wet, which could take impact on the iftting of precipitation extremes. The uncertainty exists in the selection of functions and extreme estimations. In order to reduce the uncertainty, it’s suggested to apply the composite analysis with results of GEV, Gen. Logistic, Log-Pearson 3, Pearson 6 and Wakeby functions, when the study is conducted over the whole Xinjiang. For the single station analysis, the compositive curve graph with boundary of the extreme values is suggested to be provided.

关键词

降水极值/概率拟合/不确定性/新疆

Key words

precipitation extremes/probabilistic analysis/uncertainty/Xinjiang

引用本文复制引用

江远安,尹宜舟,陈鹏翔,孙赫敏,樊静..1961-2014年新疆降水极值概率特征及拟合不确定性分析[J].气候变化研究进展,2017,13(1):52-60,9.

基金项目

中国气象局气候变化专项(CCSF201334);公益性行业(气象)科研专项(GYHY201206014);山洪地质灾害防治气象保障工程项目《山洪灾害风险区划和影响预评估能力建设》 ()

气候变化研究进展

OA北大核心CSCDCSTPCD

1673-1719

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