Radar and Other Observations of Two Vaulted Storms in Northeastern Colorado
Radar and Other Observations of Two Vaulted Storms in Northeastern Colorado
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科罗拉多州东北部两场拱形风暴的雷达和其他观测
DOI：
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发表时间：
1984
期刊：
影响因子：
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通讯作者：
C. Knight
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文献类型：
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作者：
C. Knight
摘要详细介绍了两次风暴的雷达回波结构和历史。两者都进入无云的天空，有明显的有限弱回波区。这些风暴的大小和强度相当，它们的环境也提供了相似的剪切量和潜在的不稳定性。其中一个是有组织的多细胞风暴，飞机上有详细的照片覆盖。视觉和雷达数据的结合表明，从铁砧上落下的冰粒有可能在“侧翼线”上播种炮塔。另一个风暴是超级单体。它有一个相当稳定的回波配置，雷达回波穹持续约40分钟，并产生了异常重的冰雹，冰雹深度达10厘米。然而，地面强冰雹在拱顶形成之前就开始了，在拱顶消散之前就结束了。冰雹与（大概）产生拱顶的强烈上升气流的开始最相关，但与边界存在的单纯事实无关……
Abstract Detailed radar echo structures and histories of two storms are presented. Both advanced into cloudless skies and had prominent, bounded weak echo regions. The storms had comparable size and intensity, and their environments provided similar amounts of shear and potential instability. One was an organized, multicellular storm, and had detailed photographic coverage from an aircraft. The combination of visual and radar data suggests the possibility of seeding of turrets in the “flanking line” by ice particles falling from the anvil. The other storm was a supercell. It had a rather steady echo configuration with a radar echo vault for about 40 min, and produced an exceptionally heavy hailswath, with hail up to 10 cm deep. However, the heavy hailfall at the ground started before vault formation and ended well before vault dissipation. The hailfall relates best to the onset of the strong updraft that (presumably) produced the vault, but does not relate to the mere fact of the existence of the bounded ...