Journal of atmospheric electricity最新文献_第10页

The effect of earth tides in triggering earthquake as clearly observed in some specific regions of Japan 在日本的一些特定地区，可以清楚地观察到潮汐在引发地震中的作用

Journal of atmospheric electricity Pub Date : 1900-01-01 DOI: 10.1541/JAE.29.53

Y. Sue

引用次数: 7

Altitude of occurring preliminary breakdown followed by lightning discharges and charge structure in a thunderstorm 雷暴中闪电放电后发生初步击穿的高度和电荷结构

Journal of atmospheric electricity Pub Date : 1900-01-01 DOI: 10.1541/JAE.34.55

Toshimichi Kawachi, S. Yoshida, Ting Wu, T. Ushio

{"title":"Altitude of occurring preliminary breakdown followed by lightning discharges and charge structure in a thunderstorm","authors":"Toshimichi Kawachi, S. Yoshida, Ting Wu, T. Ushio","doi":"10.1541/JAE.34.55","DOIUrl":"https://doi.org/10.1541/JAE.34.55","url":null,"abstract":". We have been designing and developing Broadband Observation network for Lightning and Thunderstorm (BOLT) which locates radiation sources in 3D associated with lightning discharges. The BOLT consists of four or more LF receivers which detect electromagnetic (EM) waves in a wide frequency range from 5kHz to 500kHz. We have been operating the BOLT in Kansai, Japan, since Oct. 2012, for locating preliminary breakdowns (PB) followed by lightning discharges. We define PB from its pulse width and interpulse duration. In addition, we classified PB pulses into +PB and -PB, depending on initial polarity of PB pulses in the atmospheric electricity sign convention. In this paper, we identified 342 +PB pulses and 139 –PB pulses. We found that most of the -PB pulses occurred about 2.5 km higher than +PB. From a comparison of radar reflectivity factor it is found that most of the +PB and –PB pulses, respectively, occurred in the lower part or below the high reflectivity regions, and in the upper part or above the high reflectivity region. These results indicate that the difference of the polarity of PB pulses is determined by the polarity of charge region around locations of PB pulses.","PeriodicalId":274637,"journal":{"name":"Journal of atmospheric electricity","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127911395","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Gust prediction by a high density ground surface observation network (POTEKA) 高密度地面观测网阵风预报

Journal of atmospheric electricity Pub Date : 1900-01-01 DOI: 10.1541/jae.38.53

Hisato Iwashita, Toshiaki Morita, Koji Shibata, F. Kobayashi

{"title":"Gust prediction by a high density ground surface observation network (POTEKA)","authors":"Hisato Iwashita, Toshiaki Morita, Koji Shibata, F. Kobayashi","doi":"10.1541/jae.38.53","DOIUrl":"https://doi.org/10.1541/jae.38.53","url":null,"abstract":". POTEKA (POint TEnki KAnsoku in Japanese) compact weather stations can observe seven meteorological variables, including temperature and pressure. In Gunma and Saitama prefectures, Japan, about 150 POTEKAs have been installed to create a high density ground surface observation network which has a resolution of approximately 2 km. This observation network has observed multiple downburst and damaging wind events, and has revealed the characteristics of downbursts, such as changes in the meteorological variables and phenomena proceeding these events (Iwashita et al. 2019). By analyzing the downburst event on Jun 15, 2015, which was the most damaging event observed by the network, we have succeeded in developing a downburst gust prediction system that utilizes the high density ground surface observation data. The high density ground surface observation network can be used to predict the occurrence of a downburst event several minutes in advance using temperature and pressure data. The cumulonimbus forward velocity can be calculated from the distance and time between the locations of temperature drops. Areas with a high probability of gust occurrence can be estimated based on the magnitude of the temperature drop. Thus, it may be possible to predict the occurrence times and locations of downburst gust events by utilizing high-resolution observations of the temperature and pressure.","PeriodicalId":274637,"journal":{"name":"Journal of atmospheric electricity","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130380458","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Electrostatic noise bands and whistler bursts observed in DEMETER satellite at low latitude and their ground observation DEMETER卫星在低纬度观测到的静电噪声带和哨暴及其地面观测

Journal of atmospheric electricity Pub Date : 1900-01-01 DOI: 10.1541/JAE.32.41

U. Pandey, V. Chauhan, Birbal Singh

{"title":"Electrostatic noise bands and whistler bursts observed in DEMETER satellite at low latitude and their ground observation","authors":"U. Pandey, V. Chauhan, Birbal Singh","doi":"10.1541/JAE.32.41","DOIUrl":"https://doi.org/10.1541/JAE.32.41","url":null,"abstract":"Very low frequency (VLF) electric and magnetic field data recorded in DEMETER satellite corresponding to 30 nighttime passes over Indian longitudes during the period from 01 September to 09 December, 2010 are analyzed. The quick-look data show the existence of two intense electrostatic noise bands, one high frequency band between 04 and 18 kHz and other low frequency band below 01 kHz in majority of passes. The noise bands are electrostatic because no similar data are seen in the magnetic channel of the satellite. The characteristics of high frequency noise bands are similar to the lower hybrid resonance (LHR) bands observed in earlier satellite experiments. The data also show the occurrence of intense VLF noise bursts of duration two to three hours in the low latitude ionosphere which are analyzed thoroughly and found containing numerous first-hop magnetospherically reflected (MR) whistlers. There are some welldefined large dispersion whistlers also which appear to have propagated to the satellite in hybrid mode of propagation. A comparison with the ground data observed simultaneously at Agra station indicate insignificant and feeble nature of whistlers recorded on the ground suggesting that satellite whistlers propagated in nonducted mode of propagation and did not reach the ground. Various possibilities for the rare occurrence of VLF bursts are discussed.","PeriodicalId":274637,"journal":{"name":"Journal of atmospheric electricity","volume":"451 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132796312","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Terahertz Radio Waves Specific Attenuation Due to Rain with Small Raindrops 小雨滴导致的太赫兹无线电波特定衰减

Journal of atmospheric electricity Pub Date : 1900-01-01 DOI: 10.1541/JAE.34.9

Yu. alyshenko, A. Roenko

引用次数: 0

Observation of Atmospheric Electricity Parameters at Boso Peninsula, Japan 日本博索半岛大气电参数的观测

Journal of atmospheric electricity Pub Date : 1900-01-01 DOI: 10.1541/jae.38.37

Jumpei Omura, Kaori Oyama, Peng Han, C. Yoshino, Haruna Kojima, K. Hattori, M. Shimo, Toshiharu Konishi, Ryuichi Furuya, H. Yamaguchi

{"title":"Observation of Atmospheric Electricity Parameters at Boso Peninsula, Japan","authors":"Jumpei Omura, Kaori Oyama, Peng Han, C. Yoshino, Haruna Kojima, K. Hattori, M. Shimo, Toshiharu Konishi, Ryuichi Furuya, H. Yamaguchi","doi":"10.1541/jae.38.37","DOIUrl":"https://doi.org/10.1541/jae.38.37","url":null,"abstract":"The total electron content (TEC) and the thermal infra-red (TIR) anomalies preceding large earthquakes have been reported and they considered the most promising precursory phenomena. To explain these phenomena, Lithosphere-Atmosphere-Ionosphere Coupling (LAIC) model should be established and several models have been proposed. Among of them, there is a geo-chemical channel. To examine the possibility of chemical channel of LAIC through the practical monitoring of atmospheric electricity parameters, we have installed sensors of the atmospheric electric field (AEF), atmospheric ion concentration (AIC), atmospheric radon concentration (ARC), radon exhalation quantity (REQ), and weather elements. In this paper, we investigate the properties of variation in atmospheric electricity parameters (precipitation disturbance (AIC, AEF), seasonal diurnal variation (AIC, AEF, REQ), correlation with atmospheric pressure (REQ), and correlation between atmospheric electricity parameters) observed at Asahi station (ASA) and Kiyosumi station (KYS), Japan to understand the characteristics of their variations. The results suggest that radon emanation from the ground could modify the variations of AIC and AEF. However, site effects based on environmental factors such as geological setting, geography, vegetation, and so on should be taken in account properly.","PeriodicalId":274637,"journal":{"name":"Journal of atmospheric electricity","volume":"65 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127621549","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A FADING CHARACTER OF WHISTLER TRACES DISPLAYED ON SONAGRAM 在曲谱上显示的哨声痕迹的衰落特征

Journal of atmospheric electricity Pub Date : 1900-01-01 DOI: 10.1541/JAE.11.37

S. Yano, Toshio Ogawa, H. Takano, M. Fujito, Yasuo Seki

引用次数: 0

Multi-channel singular spectrum analysis of underground Rn concentration at Asahi station, Boso Peninsula, Japan: Preliminary report on relation between the variation of underground Rn flux and the local seismic activity 日本博索半岛朝日站地下Rn浓度的多通道奇异谱分析:地下Rn通量变化与当地地震活动关系的初步报告

Journal of atmospheric electricity Pub Date : 1900-01-01 DOI: 10.1541/jae.39.46

Kojima Haruna, Yoshino Chie, Nemoto Kazuhide, Hattori Katsumi, Konishi Toshiharu, Furuya Ryuichi

{"title":"Multi-channel singular spectrum analysis of underground Rn concentration at Asahi station, Boso Peninsula, Japan: Preliminary report on relation between the variation of underground Rn flux and the local seismic activity","authors":"Kojima Haruna, Yoshino Chie, Nemoto Kazuhide, Hattori Katsumi, Konishi Toshiharu, Furuya Ryuichi","doi":"10.1541/jae.39.46","DOIUrl":"https://doi.org/10.1541/jae.39.46","url":null,"abstract":". Recently, there are many papers on electromagnetic pre-earthquake phenomena such as geomagnetic, ionospheric, and atmospheric anomalous changes. Ionospheric anomaly preceding large earthquakes is one of the most promising phenomena. Lithosphere-Atmosphere-Ionosphere Coupling (LAIC) model has been proposed to explain these phenomena. In this study, to evaluate the possibility of chemical channel of LAIC by observation, we have installed sensors for atmospheric electric field, atmospheric ion concentration, atmospheric Rn concentration, underground Rn concentration (GRC), and weather elements at Asahi station, Boso, Japan. Since the atmospheric electricity parameters are very much influenced by weather factors, it is necessary to remove these effects as much as possible. In this aim, we apply the MSSA (Multi-channel Singular Spectral Analysis) to remove these influences from the variation of GRC and estimate the underground Rn flux (GRF). We investigated the correlations between GRF and the local seismic activity around Asahi station. The preliminary results show that there is a tendency of correlation between GRF and local seismicity within an epicenter distance of 50 km from the station.","PeriodicalId":274637,"journal":{"name":"Journal of atmospheric electricity","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116911159","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

ELF Band Electromagnetic Wave Observation of the East Japan Huge Earthquakes 东日本大地震的ELF波段电磁波观测

Journal of atmospheric electricity Pub Date : 1900-01-01 DOI: 10.1541/JAE.32.71

T. Fujii, I. Takumi, M. Hata, H. Yasukawa

引用次数: 0

A note on the correlation of seismo-ionospheric perturbations with ground motions as deduced from F-net seismic observations 从f网地震观测推断出的地震-电离层扰动与地面运动的相关性注释

Journal of atmospheric electricity Pub Date : 1900-01-01 DOI: 10.1541/JAE.33.69

T. Endo, Y. Kasahara, Y. Hobara, T. Sue, M. Hayakawa

引用次数: 4