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| 基于LIS/OTD格点数据的中国东北地区雷击火时空分布原因分析 | |
| 引用本文： | 赵俊卉,郭广猛,亢新刚,董斌,周梅.基于LIS/OTD格点数据的中国东北地区雷击火时空分布原因分析[J].内蒙古农业大学学报(自然科学版),2008,29(3). |
| 作者姓名： | 赵俊卉 郭广猛 亢新刚 董斌 周梅 |
| 作者单位： | 1. 北京林业大学省部共建森林培育与保护教育部重点实验室,北京,100083 2. 南阳师范大学,南阳,473000 3. 安微农业大学理学院,合肥,230036 4. 内蒙古农业大学生态环境学院,呼和浩特,010019 |
| 摘 要： | 东北是中国雷击火发生最频繁的地区,因此有必要研究该地区的闪电活动规律。本文根据美国NASA提供的LIS/OTD v2.2格点资料,分析了东北地区闪电活动的时空分布。并结合雷击火的时空分布,用东北地区的气象资料、DEM数据和植被数据,分析了雷击火发生的原因。结果表明闪电在呼伦贝尔盟和黑河地区活动频繁,7月闪电最集中;而雷击火在大兴安岭、呼伦贝尔盟和黑河地区分布较多,6月份雷击火最多。可见二者在空间分布上大致一致,但也存在差异;在时间分布上有明显差别。本文研究发现,大兴安岭闪电活动不多,但雷击火频繁发生,主要原因是:地形起伏大、受大气环流影响容易形成干暴雷、易燃物分布广泛;相对于7月、8月来说,6月份闪电值较小但雷击火最多,主要原因是:7月、8月份降水多、相对湿度大、风速小,不容易着火。 |
| 关 键 词： | LIS/OTD 闪电活动 雷击火 时空分布 植被分布 数字高程模型 气象因子 |
THE ANALYSIS OF SPATIAL AND TEMPORAL DOSTRIBUTIONS OF LOGHTNING FIRES IN NORTHEAST CHINA BASED ON LIS/OTD GRID DATA |
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| ZHAO Jun-hui,GUO Guang-meng,KANG Xin-gang,DONG Bin.Zhou Mei.THE ANALYSIS OF SPATIAL AND TEMPORAL DOSTRIBUTIONS OF LOGHTNING FIRES IN NORTHEAST CHINA BASED ON LIS/OTD GRID DATA[J].Journal of Inner Mongolia Agricultural University(Natural Science Edition),2008,29(3). | |
| Authors: | ZHAO Jun-hui GUO Guang-meng KANG Xin-gang DONG BinZhou Mei |
| Institution: | ZHAO Jun-hui1,GUO Guang-meng2,KANG Xin-gang1,DONG Bin3.Zhou Mei4(1.Key Laboratory for Silviculture , Conservation of Ministry of Education,Beijing Forestry University,Beijing,100083,P.R.China,2.Nan yang Normal University,Nan yang,Henan,473000,China,3.Anhui Agriculture University,Hefei,Anhui,230036,4 College of environment,Inner Mongolia Agricultural University,Hohhot 010019,China) |
| Abstract: | Lightning activities are highly frequent in northeastern China.We derived lightning activities in northeastern from Lightning Imaging Sensor(LIS)/(Optical Transient Detector) OTD data provided by the National Aeronautics and Space Administration(NASA).We examined the effects of elevation,vegetative types,and meteorological attributes on the spatial and temporal distributions lightning activities.Lightning was more frequent in Hulunbeier and Heihe than other places,and July was peak period.Lightning fire is ... |
| Keywords: | LIS/OTD lightning activities lightning fire spatial and temporal distributions vegetative cover types DEM meteorological factor |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |