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Correlation analysis of terrestrial and satellite meteodata in the territory of the Republic of Buryatia (Eastern Siberia, Russian Federation) with forest fire statistics
Agricultural and Forest Meteorology ( IF 6.2 ) Pub Date : 2021-02-01 , DOI: 10.1016/j.agrformet.2020.108245
Nimazhap Badmaev , Aleksandr Bazarov

Abstract Due to global climate change in the Republic of Buryatia (Eastern Siberia, Russia), significant transformations of the natural environment are observed. Over the past 20 years, due to abnormally high air temperatures and increased aridity of the territory, the number of forest fires has increased 1.5 times, and the area more than 5 times. The article discusses the differences in the influence of meteorological factors on the occurrence and development of fires in two climatically contrasted forestries of the Republic of Buryatia (in the humid Baikalskoe forestry and in arid Zaigraevskoe). It was revealed that the influence of average monthly temperatures on the occurrence and development of fires is not significant compared to the effect of liquid precipitation in the arid Zaigraevskoe forestry. A statistically significant closeness of the relationship between soil moisture according to satellite measurements and fire indicators in both forestries was established with a confidence level of 95%. The VEGA remote sensing database does not have detailed accuracy, but it determines the qualitative trends in soil moisture change over vast areas (pixel size is about 40 km). For instrumental measurements in situ and verification of satellite information on soil moisture, it is proposed to use the measurement data of the atmospheric-soil measuring complex.

中文翻译:

布里亚特共和国(俄罗斯联邦东西伯利亚)境内的地面和卫星气象数据与森林火灾统计数据的相关性分析

摘要 由于布里亚特共和国(俄罗斯东西伯利亚)的全球气候变化,自然环境发生了重大变化。20年来,由于气温异常高,境内干旱加剧,森林火灾发生次数增加了1.5倍,面积增加了5倍以上。文章讨论了气象因素对布里亚特共和国两个气候对比鲜明的森林(潮湿的贝加尔森林和干旱的宰格拉耶夫森林)火灾发生和发展的影响差异。结果表明,在干旱的Zaigraevskoe林业中,与液态降水的影响相比,月平均气温对火灾发生和发展的影响并不显着。根据卫星测量结果与两个林业的火灾指标之间的关系在统计上显着接近,置信水平为 95%。VEGA 遥感数据库没有详细的精度,但它确定了大面积(像素大小约为 40 公里)土壤水分变化的定性趋势。对于仪器原位测量和土壤水分卫星信息的验证,建议使用大气-土壤测量综合体的测量数据。但它决定了广大地区(像素大小约为 40 公里)土壤水分变化的定性趋势。对于仪器原位测量和土壤水分卫星信息的验证,建议使用大气-土壤测量综合体的测量数据。但它决定了广大地区(像素大小约为 40 公里)土壤水分变化的定性趋势。对于仪器原位测量和土壤水分卫星信息的验证,建议使用大气-土壤测量综合体的测量数据。
更新日期:2021-02-01
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