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今年5月30日,阿勒泰、伊犁及乌鲁木齐等地区普遍降雪,次日北疆各地出现霜冻.这次晚霜冻是北疆各地自1906年有气象经绿以来,出现得最迟的一次.由于这次霜冻发生得特别迟,气温又降得甚低,所以,很多作物都受了严重的危害.我们在这次霜冻中会进行预防试验,并组织人力分别在乌鲁木齐市附近的几个地区进行调查.现将试验的初步结果及调查情况整理于后.—、霜冻的天气形势及天气状况.这次霜冻是由于冷空气平流造成,并由辐射冷却而加剧的.5月28日,在500毫巴及700毫巴高空图上有一强大冷槽,大槽糟线在鄂木斯克、(?)
On 30 May this year, snowfalls were common in Altay, Ili and Urumqi areas, and frosts occurred in the northern Xinjiang on the following day, the latest of which occurred at a later date since the meteorological greening of the north of Xinjiang in 1906. Since this The secondary frost took place very late and the temperature dropped very low again, so many crops were seriously endangered. We conducted preventive tests in this frost and organized manpower surveys in several areas near Urumqi The preliminary results of the trial and the investigation are now sorted out, the weather conditions of the frost and the weather conditions caused by the cold air advection and intensified by the cooling of the radiation May 28, at 500 milliseconds Pakistan and the 700 mb high altitude picture has a strong cold slot, large slot bad line in Omsk, (?)