Improved Detection of Winter Lightning in the Tohoku Region of Japan using Vaisala’s LS700x Technology
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- Cummins Kenneth L.
- Department of Atmospheric Sciences, University of Arizona
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- Honma Noriyasu
- Research & Development Center, Tohoku Electric Power Company, Inc.
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- Pifer Alburt E.
- Vaisala
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- Rogers Tim
- Vaisala
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- Tatsumi Masataka
- Sankosha Corporation
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The demand for both data quality and the range of Cloud-to-Ground (CG) lightning parameters is highest for forensic applications within the electric utility industry. For years, the research and operational communities within this industry in Japan have pointed out a limitation of these LLS networks in the detection and location of damaging (high-current and/or large charge transfer) lightning flashes during the winter months (so-called “Winter Lightning”). Most of these flashes appear to be upward-connecting discharges, frequently referred to as “Ground-to-Cloud” (GC) flashes. The basic architecture and design of Vaisala’s new LS700x lightning sensor was developed in-part to improve detection of these unusual and complex flashes. This paper presents our progress-to-date on this effort. We include a review of the winter lightning detection problem, an overview of the LS700x architecture, a discussion of how this architecture was exploited to evaluate and improve performance for winter lightning, and a presentation of results-to-date on performance improvement. A comparison of GC detection performance between Tohoku’s operational 9-sensor IMPACT (ALDF 141-T) LLS and its 6-sensor LS700x research network indicates roughly a factor-of-two improvement for this class of discharges, with an overall detection of 23/24 (96%) of GC flashes.
収録刊行物
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- 電気学会論文誌B(電力・エネルギー部門誌)
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電気学会論文誌B(電力・エネルギー部門誌) 132 (6), 529-535, 2012
一般社団法人 電気学会
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詳細情報 詳細情報について
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- CRID
- 1390001204603047936
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- NII論文ID
- 10030605617
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- NII書誌ID
- AN10136334
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- BIBCODE
- 2012IJTPE.132..529C
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- ISSN
- 13488147
- 03854213
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- NDL書誌ID
- 023824547
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
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