But, principally, yes, the Sun creates the temperature differential that creates the areas of high pressure and low pressure that create wind.
但是从原则上来说是这样的,太阳造成了温度差别,从而产生了高压和低压区域,由此形成了风。
Um...I don’t get what...how it causes a temperature differential.
我没听懂......它是怎么产生温度差别的呢?
Right. Good. This will take us to the role of wind in the climate,
好的,这就要说到风在气候中扮演的角色了,
the key is that the Sun warms up different parts of Earth at different rates and to different degrees.
关键点是太阳会以不同的速度将地球不同的部分加热到不同的温度。
For example, at sunrise, the land heats up faster than the ocean, that’s why you get morning sea breezes.
比如,在日出时,陆地热得比海洋快,这就是会有晨间海风的原因。
The air over the water heats more slowly than air over land,
水面上方的空气热得比陆地上方的空气慢,
so during the early morning, it’s cooler and denser than air overland, so it moves in toward land.
所以在晨间,水面上的空气就比陆地上方的空气更凉爽,密度也更大,所以它就会朝着陆地移动。
A sea breeze, what else? Um, the Sun’s energy is more intense near the equator than it is near the poles,
除了海风之外还有什么呢?赤道附近的太阳能比两极附近的更强烈,
so you’ve got masses of warmer air over the equatorial regions, and masses of cooler air over Polar Regions.
所以赤道地区上方会有暖空气团,而两极地区上方会有冷空气团。
And these masses are constantly interacting with each other, which is critically important for Earth’s climate.
这些空气团时常互相产生影响,而这对地球的气候至关重要。