真的有那么昼夜温度变化比海平面在山里吗?- 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 - 04 - 06 - t01:46:30z //www.hoelymoley.com/feeds/question/23332 https://creativecommons.org/licenses/by-sa/4.0/rdf //www.hoelymoley.com/q/23332 4 真的有那么昼夜温度变化比海平面在山里吗? user26085 //www.hoelymoley.com/users/26085 2021 - 12 - 20 - t15:06:25z 2021 - 12 - 22 - t09:43:01z < p >我住在洛杉矶,在海平面。附近有高大的山,我喜欢去徒步旅行。我注意到一些奇怪的NOAA预测,那就是山里的预测似乎预测昼夜温差出现令人难以置信的小。例子:< / p > < p > < a href = " https://forecast.weather.gov/MapClick.php?zoneid=CAZ554&zflg=1" rel="nofollow noreferrer">NOAA forecast for where I live, at sea level

NOAA forecast for the high elevation area (9000-10000') surrounding a nearby summit

These are live, so here are a couple of static screenshots for today and tonight:

enter image description here

enter image description here

The day-night difference is predicted to be about 20 degrees at sea level, but only 8 degrees on the mountain, at about 10,000'. This is a pattern that I've seen repeatedly in the forecasts, not just when the weather is changing or something. For the sea-level temps, I'm able to verify with a thermometer that the forecast is just about right for this morning, and in general the daytime temps at my house are about right, i.e., I believe the 20-degree difference at sea level based on empirical data.

The tiny 8-degree difference for the mountains just seems impossible. I don't bring a thermometer with me when I hike, and I don't think there is any actual weather station on top of any of our local mountains, but for instance when I visited this mountain last Friday, it seemed obvious to me that temperatures were increasing rapidly as the day went on.

Admittedly I don't have hard data for the temperatures in the mountains. Am I just wrong? Is there some actual physical reason that diurnal differences in the mountains would be so small compared to the ones at sea level? Or is there some bias in the way NOAA's software works, perhaps because they have ground station data at sea level, but not at high elevations?

 //www.hoelymoley.com/questions/23332/-/23335 # 23335 2 回答由Wxboyajm真的有更少的昼夜温度变化比海平面在山里吗? Wxboyajm //www.hoelymoley.com/users/13660 2021 - 12 - 21 - t14:13:55z 2021 - 12 - 21 - t19:05:27z < p >这可能更多的与你靠近海洋,而不是海拔。海洋和较大的水体作为绝缘体的地区。白天,当太阳能加热产生温差景观,小风的流行,使陆上海洋调节空气。这被称为海洋层,增加的原因的实例雾和冷却器的温度在夏季沿岸地区内陆烤。在深秋和冬天,海洋层行为相对沿着海岸和温暖地区。水的比热高于土地或空气,会使其温度拖长,创建一个气候变暖凉月早期,绝缘子。晚上效果主要是否定平静风和土地辐射的热量比海洋更有效,这让温度下降更快。< / p > < p >高在山上,每日温度变化是由高空的空气。在这个特别的一天,周日有点小范围,这个范围可以大相径庭,这取决于一天和特定的大气的设置。这种波动的原因是大气中更高没有尽可能多的地形影响空气的温度,所以更方面(他们是冷还是暖)更常见。要考虑的另一件事是每天的温度变化是如何影响的自然空气冷却自然上升和下沉的空气变暖。 So if you're on the western side of the mountains, air is more than likely naturally cooling which could be offsetting heating from the sun.

These are mostly theories taking into account atmospheric physics, but with some data a better theory could be drawn.
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