Exploring Recent (1991–2020) Trends of Essential Climate Variables in Greece

IF 2.5 4区地球科学 Q3 ENVIRONMENTAL SCIENCES

Atmosphere Pub Date : 2024-09-11 DOI:10.3390/atmos15091104

Konstantinos Lagouvardos, Stavros Dafis, Vassiliki Kotroni, George Kyros, Christos Giannaros

{"title":"Exploring Recent (1991–2020) Trends of Essential Climate Variables in Greece","authors":"Konstantinos Lagouvardos, Stavros Dafis, Vassiliki Kotroni, George Kyros, Christos Giannaros","doi":"10.3390/atmos15091104","DOIUrl":null,"url":null,"abstract":"Europe and the Mediterranean are considered climate change hot spots. This is the reason why this paper focuses on the analysis of the trends of essential climate variables in a Mediterranean country, Greece. The analyzed period is 1991–2020, and the dataset used is ERA5-Land (produced by the European Center for Medium-Range Weather Forecasts), which has global coverage and an improved resolution of ~9 × 9 km compared to other datasets. Significant climatic changes across Greece have been put in evidence during the analyzed period. More specifically, the country averaged a 30-year trend of temperature of +1.5 °C, locally exceeding +2 °C, and this increasing trend is positively correlated with the distance of the areas from the coasts. Accordingly, the number of frost days has decreased throughout the country. In terms of rainfall, a major part of Greece has experienced increasing annual rainfall amounts, while 86% of the Greek area has experienced a positive trend of days with heavy rainfall (>20 mm). Finally, a multiple signal of the trend of consecutive dry days was found (statistically non-significant in the major part of Greece).","PeriodicalId":8580,"journal":{"name":"Atmosphere","volume":"13 1","pages":""},"PeriodicalIF":2.5000,"publicationDate":"2024-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Atmosphere","FirstCategoryId":"89","ListUrlMain":"https://doi.org/10.3390/atmos15091104","RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"ENVIRONMENTAL SCIENCES","Score":null,"Total":0}

引用次数: 0

Abstract

Europe and the Mediterranean are considered climate change hot spots. This is the reason why this paper focuses on the analysis of the trends of essential climate variables in a Mediterranean country, Greece. The analyzed period is 1991–2020, and the dataset used is ERA5-Land (produced by the European Center for Medium-Range Weather Forecasts), which has global coverage and an improved resolution of ~9 × 9 km compared to other datasets. Significant climatic changes across Greece have been put in evidence during the analyzed period. More specifically, the country averaged a 30-year trend of temperature of +1.5 °C, locally exceeding +2 °C, and this increasing trend is positively correlated with the distance of the areas from the coasts. Accordingly, the number of frost days has decreased throughout the country. In terms of rainfall, a major part of Greece has experienced increasing annual rainfall amounts, while 86% of the Greek area has experienced a positive trend of days with heavy rainfall (>20 mm). Finally, a multiple signal of the trend of consecutive dry days was found (statistically non-significant in the major part of Greece).

查看原文本刊更多论文

探索希腊基本气候变量的近期（1991-2020 年）趋势

欧洲和地中海被认为是气候变化的热点地区。因此，本文重点分析了地中海国家希腊的主要气候变量的变化趋势。分析时段为 1991-2020 年，使用的数据集为 ERA5-Land（由欧洲中期天气预报中心制作），该数据集覆盖全球，分辨率比其他数据集提高了约 9 × 9 千米。在分析期间，希腊各地的气候发生了显著变化。更具体地说，30 年来希腊的平均气温趋势为 +1.5 °C，局部地区超过 +2 °C，这种上升趋势与地区距离海岸的远近呈正相关。因此，全国的霜冻日数有所减少。在降雨量方面，希腊大部分地区的年降雨量都在增加，86%的希腊地区的暴雨日数（大于 20 毫米）呈上升趋势。最后，还发现了连续干旱天数趋势的多重信号（在希腊大部分地区统计上并不显著）。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Atmosphere METEOROLOGY & ATMOSPHERIC SCIENCES-

CiteScore

4.60

自引率

13.80%

发文量

1769

审稿时长

1 months

期刊介绍： Atmosphere (ISSN 2073-4433) is an international and cross-disciplinary scholarly journal of scientific studies related to the atmosphere. It publishes reviews, regular research papers, communications and short notes, and there is no restriction on the length of the papers. Our aim is to encourage scientists to publish their experimental and theoretical research in as much detail as possible. Full experimental and/or methodical details must be provided for research articles.