The phrase "atmosphere at which" is correct and usable in written English.
It can be used to describe a specific environment or context in which something occurs, often in scientific or metaphorical discussions.
Example: "The atmosphere at which the chemical reaction takes place is crucial for its success."
Alternatives: "environment in which" or "setting at which".
Because Yeager had done nothing, the plane dropped back to denser atmosphere, at which time Yeager awoke and the controls again became responsive.
The intensity of heat domes is evaluated using a measure known as "geopotential height," which is the height in the atmosphere at which 500 millibars of pressure occur.
Work by the British Antarctic Survey shows that we have already reached a level of greenhouse gases in the atmosphere at which, millions of years ago, the stability of the great ice sheets was compromised to the extent that the planet experienced extreme and chaotic rises and falls in sea level.
He blamed the pro-Russia atmosphere at rallies – which often feature Russian flags, chants and appeals to Vladimir Putin – on so-called "protest tourists" from across the border.
Kean also warned his most venomous critics to consider the impact the atmosphere at Ewood Park, which reached a new low during recent home defeats to West Bromwich and neighbours Bolton, would have on young players.
The payment dispute underscores the chaotic atmosphere at Prepa, which is $9 billion in debt and in search of a new chief executive after the last boss was forced out on Friday.
The decision enraged their supporters in a hostile atmosphere at San Mamés, which was mirrored on the pitch as the referee handed out eight yellow cards, six to Athletic players.
Other participants wondered how much his presence would change what they consider the increasingly corporate atmosphere at Tanglewood, which has expanded both its grounds and its marketing efforts in recent years.
There's practically no atmosphere at all, which removes all the light pollution concerns.
It is always a bit of a surreal atmosphere at Indy, which has the biggest capacity of any sporting arena in the world.
The second stage was in a reducing atmosphere at 900°C, which means that oxygen was removed from the kiln by closing all air vents.
