近期气候变化下白俄罗斯和乌克兰混合林区火灾天气条件的动态

IF 0.9 4区 地球科学 Q4 GEOCHEMISTRY & GEOPHYSICS
Geofizika Pub Date : 2022-07-04 DOI:10.15233/gfz.2022.39.10
I. Semenova, Katsiaryna M. Sumak
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引用次数: 1

摘要

本研究利用研究区域内每个行政区域的月平均火灾天气指数(FWI),考察了1990-2020年白俄罗斯和乌克兰混交林地区火灾季节火灾天气条件的时空分布。结果表明,白俄罗斯北部和西北部地区FWI值最低,东南部地区FWI值最高。在乌克兰境内,FWI值向东部地区增加。从季节分布上看,FWI在3 ~ 5月呈增加趋势,在夏季中期各区域指数达到最大值。对五年期间FWI动态的分析显示,在大部分研究期间,危险火灾天气情况的频率由“非常低”至“中等”不等。在2015-2020年的最后一个阶段,白俄罗斯南部和乌克兰北部开始出现“高”火灾危险级别。在研究期间,在乌克兰的一些地区,与该地区观测到的气候变化有关,FWI值“低”危险水平的频率减少,同时在较高水平上增加。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Dynamics of fire weather conditions in the mixed forest areas of Belarus and Ukraine under recent climate change
The study examines spatiotemporal distribution of fire weather conditions during the fire seasons of 1990–2020 in the mixed forests areas of the territory of Belarus and Ukraine using monthly mean Fire Weather Index (FWI) averaged for each administrative area in the study region. It was revealed that the lowest FWI values were observed in the northern and northwestern regions of Belarus, the highest values were in the southeast. On the territory of Ukraine, FWI values increase toward the east regions. In the seasonal distribution, the FWI increases from March to May and in the middle of summer the index reaches a maximum in the all regions. Analysis of the FWI dynamics over the five-year periods showed that the frequency of danger fire weather conditions varied from a "very low" level to "moderate" level most of the study period. In the last pentad 2015–2020, "high" fire danger level began to appear in the south of Belarus and in the northern part of Ukraine. During the study period, in some regions of Ukraine, there was a decrease in the frequency of the FWI values of 'low' danger level and its simultaneous increase at the higher levels, in connection with the observed climate change in the region.
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来源期刊
Geofizika
Geofizika 地学-地球化学与地球物理
CiteScore
1.60
自引率
0.00%
发文量
17
审稿时长
>12 weeks
期刊介绍: The Geofizika journal succeeds the Papers series (Radovi), which has been published since 1923 at the Geophysical Institute in Zagreb (current the Department of Geophysics, Faculty of Science, University of Zagreb). Geofizika publishes contributions dealing with physics of the atmosphere, the sea and the Earth''s interior.
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