| 2006-2015年上海嘉定区气温和降水非均匀分布特征分析 |
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| 引用本文： | 吉辰,闵锦忠,耿焕同,张录军,史达伟.2006-2015年上海嘉定区气温和降水非均匀分布特征分析[J].气象科学,2017,37(1):110-119. |
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| 作者姓名： | 吉辰 闵锦忠 耿焕同 张录军 史达伟 |
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| 作者单位： | 南京信息工程大学 大气科学学院, 南京 210044,南京信息工程大学 大气科学学院, 南京 210044,南京信息工程大学 计算机与软件学院, 南京 210044,南京大学 大气科学学院, 南京 210023,南京信息工程大学 大气科学学院, 南京 210044 |
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| 基金项目： | 国家自然科学基金资助项目（41430427）；江苏省“青蓝工程”基金资助项目（2012） |
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| 摘 要： | 利用上海嘉定区2006-2015年9个自动气象观测站的逐小时观测资料，通过对气温和降水日变化差异、年变化特征、空间分布状况的分析，研究了该地区气温和降水时空非均匀性分布特征。研究结果表明：嘉定区气温和降水日变化存在局地差异和季节差异，日最高气温出现时间在四季中最为集中，而日最低气温出现时间则比较分散；年平均气温呈走低趋势，而年降水量从整体上来说却呈增加趋势；上海嘉定区东南角为气温高值区且降水量相对偏大，中部地区为降水量高值区且气温也相对偏高，而北部降水量偏少且气温偏低，表明嘉定区东南部和中部相对暖湿，而北部偏干冷；气温和降水的标准差空间分布差异大，表明上海嘉定区气温和降水的空间非均匀性特征显著。通过嘉定气温和降水的时空演变规律的揭示，有助于更好地认识小尺度局部区域气候特征，也能为准确认识该地区的极端事件、精细化天气预报及区域气象灾害风险评估提供更加科学的气候变化背景。
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| 关 键 词： | 气温 降水 时空非均匀性 上海嘉定区 |
| 收稿时间： | 2015/10/12 0:00:00 |
| 修稿时间： | 2016/1/4 0:00:00 |
Analysis on inhomogeneity characteristics of temperature and precipitation in Jiading district of Shanghai from 2006 to 2015 |
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| JI Chen,MIN Jinzhong,GENG Huantong,ZHANG Lujun and SHI Dawei.Analysis on inhomogeneity characteristics of temperature and precipitation in Jiading district of Shanghai from 2006 to 2015[J].Scientia Meteorologica Sinica,2017,37(1):110-119. |
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| Authors: | JI Chen MIN Jinzhong GENG Huantong ZHANG Lujun and SHI Dawei |
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| Institution: | School of Atmospheric Sciences, Nanjing University of Information Science & Technology, Nanjing 210044, China,School of Atmospheric Sciences, Nanjing University of Information Science & Technology, Nanjing 210044, China,School of Computer and Software, Nanjing University of Information Science & Technology, Nanjing 210044, China,School of Atmospheric Sciences, Nanjing University, Nanjing 210023, China and School of Atmospheric Sciences, Nanjing University of Information Science & Technology, Nanjing 210044, China |
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| Abstract: | Based on the hourly datasets from nine automatic weather station in Jiading district of Shanghai from 2006 to 2015, the inhomogeneity characteristics of the temporal and spatial change of temperature and precipitation are studied by analyzing the characteristics of diurnal, inter-annual variations and the spatial distribution of temperature and precipitation. Results reveal that the local changes and seasonal variations of temperature and precipitation existed in Jiading district, whose maximal high temperature is centralized in all seasons but the minimum low temperature is more dispersed. The annual average temperature presented falling trend, while the annual precipitation on the whole was increasing. The southeast corner of Jiading district was the area of high temperature and relatively large precipitation, and the central region had the large precipitation and the relatively high temperature, while the temperature and precipitation are relatively low in the north part, which means that the southeast part and the central region is relatively warm-wet and the north part is relatively dry-cold. The large spatial distribution difference of standard deviation of temperature and precipitation shows that the inhomogeneity characteristics of temperature and precipitation in Jiading district of Shanghai is significant. The investigation on the spatial-temporal evolvement of temperature and precipitation is important for better understanding of small scale regional climate. It can also provide climate background for extreme events, refined weather forecasting as well as risk zonation of meteorological disaster. |
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| Keywords: | Temperature Precipitation Temporal and spatial inhomogeneity Jiading district of Shanghai |
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