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长春发布寒潮黄色预警 今天气温或降到零下1度

2016-09-28 01:36:35   新文化报

今年冬天会特别冷吗?

拉尼娜要来了,受此影响冬季可能会更冷

每一次天气异常,小伙伴儿都要提起一个词:厄尔尼诺。尤其是今年,超强厄尔尼诺现象已经让很多地方苦不堪言。不过,今年6月,气象专家表示超强厄尔尼诺现象已经结束了,但不幸的消息是,它还有个妹妹,名叫拉尼娜,也要发威了,预计它的影响主要在冬天。

过往,拉尼娜极少登场,可是今年,包括世界气象组织、国家气候中心等组织机构都表示拉尼娜就要来了!中国气象局召开新闻发布会表示:关于拉尼娜,现在是达到临界状态,还未真正进入,预计将在本月进入。专家预测,2016年~2017年冬天将形成一次拉尼娜事件。

据了解“拉尼娜”是一个柔美女孩的名字,在西班牙语中,意为“圣女”。拉尼娜从诞生开始,就被认为是“圣婴”厄尔尼诺的“妹妹”,它们你方唱罢我登场,共同影响着全球的气候。“拉尼娜”现象被称为“冷水事件”,又称“反厄尔尼诺”现象。

据资料显示,每完成一次厄尔尼诺和拉尼娜的过程或循环一般为2~7年,平均周期为4年。拉尼娜和厄尔尼诺通常是交替出现,此消彼长。

拉尼娜事件一般会紧随超强厄尔尼诺现象出现,是一种厄尔尼诺年后对地球变暖的矫枉过正,可以一定程度上抵消气候变暖的幅度。

中国气象局国家气候中心指出,赤道中东太平洋已于8月进入拉尼娜状态。拉尼娜的出现将搅乱全球气候,对我国气候的影响之一就是冬季可能会更冷。

降温小贴士

最近一段时间,早晚的温差都是特别大,感冒患者也明显增多,这次气温骤降,您更要把保暖工作做好。

长春市中心医院呼吸内科副主任医师魏铁军介绍,最近感冒的老年人比年轻人要多,在此提醒老年人,气温变化较大,要注意保暖。

另外,气温变化明显,也是肺炎、心脑血管疾病的高发期。由于气温大幅下降,使血管产生收缩,影响血压、血液正常流动和供应,部分心脑血管疾病患者可能会产生血压升高、脑供血不足或阻塞、心肌缺血等不适症状。提醒患者适当增加衣物。心脑血管疾病病史的患者要注意,早晚出门一定要多穿一些。

除了人以外,霜的出现,也意味着农作物生长期宣告结束。所以,此时,将是农民们收获的季节,出现霜冻,对农作物会有一定影响,建议可对一些农作物进行抢收,以防霜冻带来损失。同时,花卉专家提醒,当最低气温低于4℃时就得把植物挪到屋里了。

本组稿件 新文化记者 冯艳

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