什么因素可能导致这种温度升高,午夜/清晨吗?- 江南体育网页版- - - - -地球科学堆江南电子竞技平台栈交换 最近30从www.hoelymoley.com 2023 - 07 - 07 - t22:13:38z //www.hoelymoley.com/feeds/question/20632 https://creativecommons.org/licenses/by-sa/4.0/rdf //www.hoelymoley.com/q/20632 6 什么因素可能导致这种温度升高,午夜/清晨吗? maplemale //www.hoelymoley.com/users/21572 2020 - 12 - 29 - t17:33:25z 2020 - 12 - 30 - t06:31:01z < p >我新浆(个人气象站)。我没有发现任何答案解释为什么这有时发生除了因素没有给出解释变量在我的例子中(风、云量等)。While I had a minor gust (< 1 mph), no change in direction from what it's been all week (directly north). No change in cloud cover, fog, mist etc. Steady barometric pressure rise (overall slight) all night at 30.12 In to 30.26. Every once in a while I see a massive spike in temperature like this with no easily discernable factors and would like to understand why. Furthermore, I checked 5 other weather stations in the valley floor. It looks identical/exact same affects in a 30 mile range. However, as soon as we rise below the valley floor maybe 500 - 1000 ft, we see a steady decrease all night with a slight flattening during this time, but no increase.

Details of my location: Northwest Montana, mountain surround valley, river bottom, low/lowest point in the valley 1/2 mile from river edge. Station is 6ft above ground, clear from any buildings, trees, structures by at least 200ft in all directions.

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 //www.hoelymoley.com/questions/20632/-/20635 # 20635 4 回答由JeopardyTempest因子(s)可能会导致这种温度升高,午夜/清晨吗? JeopardyTempest //www.hoelymoley.com/users/6298 2020 - 12 - 30 - t06:23:27z 2020 - 12 - 30 - t06:31:01z < p >昼夜温度波动与预期相反的辐射模式(晚上白天变暖、冷却)通常是由于空气来自其他地方。天气(大规模)方面可以带来如此快速的变化,但往往更倾向于大幅(而不是渐进的)和一个方向(如前面通过)。然而偶尔会有有趣的振荡附近更多的固定方面,诸如此类的事件从俄克拉何马在2018年2月:< / p > < p > < a href = " https://i.stack.imgur.com/sC0e4.png " rel = " nofollow noreferrer " > < img src = " https://i.stack.imgur.com/sC0e4.png " alt = "在这里输入图像描述" / > < / > < / p > < p >更经常、更小的夜间和更多的中尺度波动(本地)特性。酷不同区域不同,造成的压力差产生的密度差异移动周围的空气……两个常见的原因这样的变化可以发行量在海洋或其他大型水体(你可能不相关!)和terrain-induced发行量(可能更切中要害的!)。晚上的可能是最有效的下行风,造成比周围的空气快速冷却在山上,和downvalley风,造成足够的空气从下坡的建立。这节课从< a href = " https://climate.evsc.virginia.edu/EVSC1300/PowerPoint/EVSC1300_guest_lecture_2017.pdf " rel = " nofollow noreferrer " > Stephan De Wekker < / >给了一些更多的细节在这些特性和其他地形流动。< br / >通常轻微大规模风向的变化和不同的温度在不同程度的山脉和山谷可能导致非常复杂的温度的上升和下降。< / p > < p >也不是不可能,有一些问题与你的站,我最初关心的几件事情:< / p > < ul > <李>风特别是似乎奇怪——由于北整个时间总是可疑的,不到1英里一整个晚上和清晨,虽然不是不可能,使它更可疑是否显著的温度平流可能发生。李李< / > < > +也很少看到温度和露点变化几乎100%完全步长时间的变化,水分改变慢得多,除了在尖锐的领域(和在夜晚时温度会推动降低空气饱和(< span class = " math-container " > T = T_d < / span >]美元)。< /李> < / ul > < p >但一看整个地区的观测时间:< / p > < p > < a href = " https://i.stack.imgur.com/tWI86.gif " rel = " nofollow noreferrer " > < img src = " https://i.stack.imgur.com/tWI86.gif " alt = "在这里输入图像描述" / > < / > < / p > < p >显示也许你的数据并不是不可能的。meteograms从利比(KS59)和米苏拉(KMSO)下面做节目很弱/平静风和相当类似的温度/露点运动。< / p > < p > < a href = " https://i.stack.imgur.com/MvSqR.png " rel = " nofollow noreferrer " > < img src = " https://i.stack.imgur.com/MvSqR.png " alt = "在这里输入图像描述" / > < / > < / p > < p >,没有北方的风(除非冷静,这是一个占位符没有风时),和一个轻微的一点波动之间温度和露点,所以它不会伤害检查是否正确观察车站。< / p > < p >我相信一般流过当地山地往往是晚上降温,最密集的空气(冷)收集沿着河边。 Other features driven by forced air movement can bring warm air to valleys, like foehns and large-scale downsloping, but those tend to bring drier air in.
So assuming it's a valid feature, it appears to be something complex. It can take years of observations to really understand the flows around complex topographic areas. But I would posit a guess that maybe a slight wind shift gradually pushed the pooled dense valley air away from you far enough to get you into slightly warmer air away from the river valley bottom. Or maybe winds become enough to mix down warmer air above. Differences in snowcover/melting effects or clouds/precipitation might also play a part in what you experienced. But in that part of the world, I'd expect you'll see many more peculiar local temperature fluctuations over your time observing!
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