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| 雷ジャンプ× | デュアル・ポーラリゼーション・レーダー× | |
|---|---|---|
| 分野 | 気象学 | 気象学 |
| 系統 | Process / pipeline | Process / pipeline |
| 提唱年≠ | 2009 | 1990s |
| 提唱者≠ | Schultz, Petersen, Rudlosky | Bringi, Chandrasekar |
| 種類≠ | Real-time warning product | Radar measurement technique |
| 原典≠ | Schultz, E., Petersen, W. A., & Rudlosky, S. D. (2009). Preliminary Development and Validation of the Specific Convective Activity Signature (SCAS) Product using Optical Transient Detector and Geostationary Satellite Data. Journal of Applied Meteorology and Climatology, 48(4), 642-655. link ↗ | Kumjian, M. R. (2013). The impact of precipitation on supercell electrification: Lightning potential and storm structure changes. Journal of the Atmospheric Sciences, 69(11), 3353-3375. link ↗ |
| 別名 | Lightning jump, Lightning trend, VHF lightning, Electric field analysis | Dual-pol radar, Polarimetric radar, Dual-polarization, Dual-pol |
| 関連≠ | 2 | 3 |
| 概要≠ | The lightning jump is a rapid increase in lightning activity (number of flashes per unit time) that precedes severe weather including hail, heavy rain, and tornadoes. This phenomenon, observed using satellite or ground-based lightning detection networks, is an operational diagnostic tool for real-time severe weather warning. | Dual-polarization (dual-pol) radar is a weather radar system that transmits and receives electromagnetic waves in both horizontal and vertical polarizations simultaneously. This technique, operational in weather services since the 2010s, provides detailed information about precipitation particle type, shape, and size distribution, enabling improved rainfall estimates and better discrimination of hail, rain, and snow. |
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