Circulation type classifications for temperature and precipitation stratification in Italy

Vallorani Roberto; Bartolini Giorgio; Betti Giulio; Crisci Alfonso; Gozzini Bernardo; Grifoni Daniele; Iannuccilli Maurizio; Messeri Alessandro; Messeri Gianni; Morabito Marco; Maracchi Giampiero

摘要

ABSTRACT >During the last few decades, weather circulation type classifications (CTCs) have been widely used to gain insight into processes at the synoptic scale, but also for studying the relationship between atmospheric circulation and surface climate variability. This study aims to evaluate the best performing CTCs based on COST733 software for the stratification of daily ground‐level precipitation and surface air temperature across Italy by means of four statistical metrics. Six classification methods belonging to the four COST733 groups (threshold‐based, PCA‐based, leader algorithms and optimization algorithms) were investigated on 32 and 26 data time series derived from Italian weather stations for daily mean temperature and daily mean precipitation, respectively. CTCs were computed using gridded mean sea level pressure and geopotential height at 500?hPa derived from the NCEP Reanalysis 2 dataset between 1979 and 2015 and tested on three different numbers of classes (8/9, 11/12 and 18 circulation types). Evaluation metrics showed an evident seasonal variability and high‐spatial heterogeneity reflecting the geographical complexity of the Italian territory. The study points out that the best classification, both for temperature and precipitation, is strongly dependent on the classification variable (mean sea level pressure and geopotential height at 500?hPa) showing relevant differences between surface temperature and precipitation. A low number of circulation types (8/9) resulted as the most appropriate grouping for the Italian domain and the Principal Component Transversal and Simulated Annealing were the best performing classification procedures for ground‐level precipitation and temperature stratification, respectively. </abstract> </span> <span class="z_kbtn z_kbtnclass hoverxs" style="display: none;">展开▼</span> </div> <div class="translation abstracttxt"> <span class="zhankaihshouqi fivelineshidden" id="abstract"> <span>机译：</span><Abstract XMLNS =“http://www.wiley.com/namespaces/wiley”type =“main”> <title type =“main”>抽象</ title> >在过去几十年中，天气循环类型分类（CTC）已被广泛用于深入了解概略地位，也用于研究大气循环和表面气候变异性之间的关系。本研究旨在通过四种统计指标评估基于COST733软件的最佳性能CTC，以便通过四种统计指标进行意大利日常地面降水和表面空气温度的分层。研究了六种属于四个成本733组的分类方法（基于阈值，基于PCA的，领导算法和优化算法），分别研究了来自意大利天气站的32和26个数据时间序列，分别用于日常平均温度和每日平均降水。 CTC使用网格平均海平面压力和500次的地理调谐高度来计算，从1979年至2015年之间的NCEP再分析2数据集进行，并在三个不同数量的类（8/9,11 / 12和18循环类型）上进行测试。评估度量显示出明显的季节性变异性和高空间异质性，反映了意大利地区的地理复杂性。该研究指出，用于温度和降水的最佳分类是强烈的，依赖于分类变量（平均海平面压力和500μmOopotential高度），显示出表面温度和沉淀之间的相关差异。循环类型（8/9）导致了意大利结构域最合适的分组，主要成分横向和模拟退火分别是用于地面沉淀和温度分层的最佳性分类程序。</ p> </摘要> </span> <span class="z_kbtn z_kbtnclass hoverxs" style="display: none;">展开▼</span> </div> </div> <div class="record"> <h2 class="all_title" id="enpatent33" >著录项</h2> <ul> <li> <span class="lefttit">来源</span> <div style="width: 86%;vertical-align: text-top;display: inline-block;"> <a href='/journal-foreign-21026/'>《International Journal of Climatology: A Journal of the Royal Meteorological Society》</a> <b style="margin: 0 2px;">|</b><span>2018年第2期</span><b style="margin: 0 2px;">|</b><span>共17页</span> </div> </li> <li> <div class="author"> <span class="lefttit">作者</span> <p id="fAuthorthree" class="threelineshidden zhankaihshouqi"> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Vallorani Roberto&option=202" target="_blank" rel="nofollow">Vallorani Roberto;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Bartolini Giorgio&option=202" target="_blank" rel="nofollow">Bartolini Giorgio;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Betti Giulio&option=202" target="_blank" rel="nofollow">Betti Giulio;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Crisci Alfonso&option=202" target="_blank" rel="nofollow">Crisci Alfonso;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Gozzini Bernardo&option=202" target="_blank" rel="nofollow">Gozzini Bernardo;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Grifoni Daniele&option=202" target="_blank" rel="nofollow">Grifoni Daniele;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Iannuccilli Maurizio&option=202" target="_blank" rel="nofollow">Iannuccilli Maurizio;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Messeri Alessandro&option=202" target="_blank" rel="nofollow">Messeri Alessandro;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Messeri Gianni&option=202" target="_blank" rel="nofollow">Messeri Gianni;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Morabito Marco&option=202" target="_blank" rel="nofollow">Morabito Marco;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Maracchi Giampiero&option=202" target="_blank" rel="nofollow">Maracchi Giampiero;</a> </p> <span class="z_kbtnclass z_kbtnclassall hoverxs" id="zkzz" style="display: none;">展开▼</span> </div> </li> <li> <div style="display: flex;"> <span class="lefttit">作者单位</span> <div style="position: relative;margin-left: 3px;max-width: 639px;"> <div class="threelineshidden zhankaihshouqi" id="fOrgthree"> <p>National Research CouncilInstitute of Biometeorology?–?IBIMETFlorence Italy;</p> <p>Tuscany RegionLaMMA Consortium?–?Weather Forecaster and Researcher at Laboratory of Monitoring and Environmental Modelling for Sustainable DevelopmentFlorence Italy;</p> <p>National Research CouncilInstitute of Biometeorology?–?IBIMETFlorence Italy;</p> <p>National Research CouncilInstitute of Biometeorology?–?IBIMETFlorence Italy;</p> <p>Tuscany RegionLaMMA Consortium?–?Weather Forecaster and Researcher at Laboratory of Monitoring and Environmental Modelling for Sustainable DevelopmentFlorence Italy;</p> <p>National Research CouncilInstitute of Biometeorology?–?IBIMETFlorence Italy;</p> <p>Department of AgricultureAccademia dei GeorgofiliFlorence Italy;</p> <p>Interdepartmental Centre of Bioclimatology?–?CIBICUniversity of FlorenceItaly;</p> <p>National Research CouncilInstitute of Biometeorology?–?IBIMETFlorence Italy;</p> <p>Interdepartmental Centre of Bioclimatology?–?CIBICUniversity of FlorenceItaly;</p> <p>Department of AgricultureAccademia dei GeorgofiliFlorence Italy;</p> </div> <span class="z_kbtnclass z_kbtnclassall hoverxs" id="zhdw" style="display: none;">展开▼</span> </div> </div> </li> <li > <span class="lefttit">收录信息</span> <span style="width: 86%;vertical-align: text-top;display: inline-block;"></span> </li> <li> <span class="lefttit">原文格式</span> <span>PDF</span> </li> <li> <span class="lefttit">正文语种</span> <span>eng</span> </li> <li> <span class="lefttit">中图分类</span> <span><a href="https://www.zhangqiaokeyan.com/clc/1232.html" title="气候学">气候学;</a></span> </li> <li class="antistop"> <span class="lefttit">关键词</span> <p style="width: 86%;vertical-align: text-top;"> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=weather type&option=203" rel="nofollow">weather type;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=circulation classification&option=203" rel="nofollow">circulation classification;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=COST733&option=203" rel="nofollow">COST733;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=atmospheric circulation&option=203" rel="nofollow">atmospheric circulation;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=temperature and precipitation in Italy&option=203" rel="nofollow">temperature and precipitation in Italy;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Italy&option=203" rel="nofollow">Italy;</a> </p> <div class="translation"> 机译：天气类型;循环分类;花费733;大气循环;意大利温度和降水;意大利; </div> </li> </ul> </div> </div> <div class="literature cardcommon"> <div class="similarity "> <h3 class="all_title" id="enpatent66">相似文献</h3> <div class="similaritytab clearfix"> <ul> <li class="active" >外文文献</li> <li >中文文献</li> <li >专利</li> </ul> </div> <div class="similarity_details"> <ul > <li> <div> <b>1. </b><a class="enjiyixqcontent" href="/journal-foreign-detail/0704023003064.html">Circulation type classifications for temperature and precipitation stratification in Italy</a> <b>[J]</b> . <span> <a 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</div> </li> <li> <div> <b>7. </b><a class="enjiyixqcontent" href="/academic-degree-domestic_mphd_thesis/02031975494.html">分层线性模型方法及其降水量的分层特性研究</a> <b>[A] </b> <span> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=姜高霞&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor"> . 姜高霞</a> <span> . 2012</span> </span> </div> </li> </ul> <ul style="display: none;"> <li> <div> <b>1. </b><a class="enjiyixqcontent" href="/patent-detail/061204945414.html">基于台风气候降水率的降水类型分类方法及其分类系统</a> <b>[P]</b> . <span> 中国专利： CN109087020B </span> <span> . 2022.03.04</span> </div> </li> <li> <div> <b>2. </b><a class="enjiyixqcontent" href="/patent-detail/06120111568681.html">基于台风气候降水率的降水类型分类方法及其分类系统</a> <b>[P]</b> . <span> 中国专利： CN109087020A </span> <span> . 2018-12-25</span> </div> </li> <li> <div> <b>3. </b><a class="enjiyixqcontent" href="/patent-detail/06130430219205.html">METHOD FOR STRATIFICATION OF TYPE OF TEMPERATURE STRATIFICATION OF ATMOSPHERE</a> <b>[P]</b> . <span> 外国专利：  UA88566C2 </span> <span> . 2009-10-26</span> </div> <p class="zwjiyix translation" style="max-width: initial;height: auto;word-break: break-all;white-space: initial;text-overflow: initial;overflow: initial;"> <span>机译：大气温度分层类型的分层方法 </span> </p> </li> <li> <div> <b>4. </b><a class="enjiyixqcontent" href="/patent-detail/06130481790811.html">Sauna cabin with convection force air circulation only - is for slow uniform temperature stratification of the hot air</a> <b>[P]</b> . <span> 外国专利：  DE000001923496C3 </span> <span> . 1977-04-14</span> </div> <p class="zwjiyix translation" style="max-width: initial;height: auto;word-break: break-all;white-space: initial;text-overflow: initial;overflow: initial;"> <span>机译：仅具有对流空气流通的桑拿房-用于使热风缓慢均匀地分层 </span> </p> </li> <li> <div> <b>5. </b><a class="enjiyixqcontent" href="/patent-detail/06130482838146.html">Sauna cabin with convection force air circulation only - is for slow uniform temperature stratification of the hot air</a> <b>[P]</b> . <span> 外国专利：  DE1923496B2 </span> <span> . 1976-08-26</span> </div> <p class="zwjiyix translation" style="max-width: initial;height: auto;word-break: break-all;white-space: initial;text-overflow: initial;overflow: initial;"> <span>机译：仅具有对流空气流通的桑拿房-用于使热风缓慢均匀地分层 </span> </p> </li> </ul> </div> </div> </div> <div class="theme cardcommon" style="overflow: auto;display:none"> <h3 class="all_title" id="enpatent55">相关主题</h3> <ul id="subject"> </ul> </div> </div> </div> </div> <div class="right rightcon"> <div class="details_img cardcommon clearfix" style="margin-bottom: 10px;display:none;" > </div> </div> </div> <div id="thesis_get_original1" class="downloadBth" style="bottom: 19px;z-index: 999;" onclick="ywcd('0704023003064','4',7,2,1,'',this,24)" class="delivery" prompt="010401" title="通过人工服务将文献原文发送至邮箱" >获取原文</div> <div class="journalsub-pop-up" style="display: none"> <div class="journal-sub"> <h2>期刊订阅</h2> <img src="https://cdn.zhangqiaokeyan.com/img/loginclose.png" alt="关闭" 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