One Hundred Inches in One Hundred Hours: Evolution of a Wasatch Mountain Winter Storm Cycle
One Hundred Inches in One Hundred Hours: Evolution of a Wasatch Mountain Winter Storm Cycle
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一百小时一百英寸：瓦萨奇山冬季风暴周期的演变
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发表时间：
2003
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影响因子：
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通讯作者：
W. J. Steenburgh
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文献类型：
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作者：
W. J. Steenburgh
利用雷达图像、高密度地面数据和Alta滑雪场[平均海拔2600-3200 m]和盐湖城国际机场附近（平均海拔1288 m）的降水观测资料，研究了犹他州北部Wasatch山脉冬季主要风暴周期的天气、地形和湖泊效应降水过程。发生于2001年11月22日至27日的风暴周期，包括两个不同的风暴系统，产生了108mm。（274厘米）的雪在阿尔塔滑雪场，包括100英寸。（254厘米）在100小时内。每一个风暴系统都有一个低等效潜在温度（θe）空气的入侵，远远早于地面冷锋。随着低θe气流在犹他州北部上空的移动，锋前降水对流性增强，冷锋通道伴随对流线和层状降水区。额后不稳定导致地形和湖泊效应的阵雪，产生了三分之二的…
Abstract Synoptic, orographic, and lake-effect precipitation processes during a major winter storm cycle over the Wasatch Mountains of northern Utah are examined using radar imagery, high-density surface data, and precipitation observations from Alta Ski Area [2600–3200 m above mean sea level (MSL)] and nearby Salt Lake City International Airport (1288 m MSL). The storm cycle, which occurred from 22 to 27 November 2001, included two distinct storm systems that produced 108 in. (274 cm) of snow at Alta Ski Area, including 100 in. (254 cm) during a 100-h period. Each storm system featured an intrusion of low equivalent potential temperature (θe) air aloft, well in advance of a surface-based cold front. Prefrontal precipitation became increasingly convective as low-θe air aloft moved over northern Utah, while cold frontal passage was accompanied by a convective line and a stratiform precipitation region. Postfrontal destabilization led to orographic and lake-effect snowshowers that produced two-thirds of the...