Interesting. One effect isn't mentioned, which contributes to the problem of China further: When air is loaded with evaporated water it contains also the energy that was necessary to change water from liquid to a gas.
When water condenses while the air gains height climbing the mountains that energy is released again as heat, it keeps the…
Interesting. One effect isn't mentioned, which contributes to the problem of China further: When air is loaded with evaporated water it contains also the energy that was necessary to change water from liquid to a gas.
When water condenses while the air gains height climbing the mountains that energy is released again as heat, it keeps the air at the relative dewpoint temperature (which depends on humidity and pressure). As that heated and dried air then flows down on the lee side of the Himalayas it gets under pressure again and heats up as the energy can't be stored as water vapor again - the water was left behind. The air is thus even way hotter than it was when on the pakistani/indian side of the ranges.
Interesting. One effect isn't mentioned, which contributes to the problem of China further: When air is loaded with evaporated water it contains also the energy that was necessary to change water from liquid to a gas.
When water condenses while the air gains height climbing the mountains that energy is released again as heat, it keeps the air at the relative dewpoint temperature (which depends on humidity and pressure). As that heated and dried air then flows down on the lee side of the Himalayas it gets under pressure again and heats up as the energy can't be stored as water vapor again - the water was left behind. The air is thus even way hotter than it was when on the pakistani/indian side of the ranges.
I didn’t know this. Fascinating!