Sentences with phrase «form at colder temperatures»

Hence, the clouds that form at colder temperatures — if any form at all — contain much less suspended water in the form of ice crystals, the starting sites for snow crystal formation.

Not exact matches

So although there are hints that cold snaps hasten upheavals and spark some forms of social stress, it seems that chilly temperatures could be off the hook when it comes to causing crime — at least for now.
«What we do know is that Hypatia was formed in a cold environment, probably at temperatures below that of liquid nitrogen on Earth -LRB--196 Celsius).
After «seeding» the chamber, the researchers adjusted the temperature, first setting it to the coldest temperatures at which clouds form on Earth (around minus 81 degrees Fahrenheit).
Ice in space forms at temperatures far more frigid than the coldest pockets on Earth — between 3 and 90 degrees Fahrenheit above absolute zero -LRB--- 459.67 degrees F, or — 273.15 degrees Celsius).
Because sunlight is needed to form ozone, and the reaction is more vigorous at higher temperatures, cold, cloudy cities have fewer worries than warm, sunny ones.
Current theory holds that giant planets can form only at comparatively great distances from a star, where cold temperatures allow ice and frozen gases to gather together.
All these atoms form a weak bond, creating a new, exotic state of matter at cold temperatures, referred to as «Rydberg polarons.»
(57j) For surface + tropospheric warming in general, there is (given a cold enough start) positive surface albedo feedback, that is concentrated at higher latitudes and in some seasons (though the temperature response to reduced summer sea ice cover tends to be realized more in winter when there is more heat that must be released before ice forms).
Re 9 wili — I know of a paper suggesting, as I recall, that enhanced «backradiation» (downward radiation reaching the surface emitted by the air / clouds) contributed more to Arctic amplification specifically in the cold part of the year (just to be clear, backradiation should generally increase with any warming (aside from greenhouse feedbacks) and more so with a warming due to an increase in the greenhouse effect (including feedbacks like water vapor and, if positive, clouds, though regional changes in water vapor and clouds can go against the global trend); otherwise it was always my understanding that the albedo feedback was key (while sea ice decreases so far have been more a summer phenomenon (when it would be warmer to begin with), the heat capacity of the sea prevents much temperature response, but there is a greater build up of heat from the albedo feedback, and this is released in the cold part of the year when ice forms later or would have formed or would have been thicker; the seasonal effect of reduced winter snow cover decreasing at those latitudes which still recieve sunlight in the winter would not be so delayed).
Unusually low temperatures in the stratosphere, even cold records, are at fault — creating conditions whereby ice crystals form in so called polar stratospheric clouds.
Methane hydrate forms in cold temperatures and under high pressure — conditions that can be found at the bottom of the ocean.
The destruction of ozone by CFC compounds requires cold conditions because at these temperatures acidic gases (hydrochloric and sulphuric acid) condense to form ice crystals and surface chemistry reactions with CFCs occur liberating the ozone destroying halogen radicals.
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