"ambitious atmosphere" is correct and can be used in written English.
You can use this phrase to describe an environment that is inspiring and conducive to success. For example, "The ambitious atmosphere at the corporation encouraged employees to work harder and reach their goals."
The new migrants are less ambitious, and they come into a less ambitious atmosphere.
The newsroom is youthful, which makes for a driven and ambitious atmosphere: but the flipside is that there are few figures of authoritative experience.
Chez es Saada, a Middle Eastern restaurant on the Lower East Side of Manhattan, is the most ambitious atmosphere Mr. Patkin has assembled thus far.
What makes The Godfather so ambitious is that atmosphere in which the true-to-life gloom of Italian-American interiors takes on a moral force.
But by fostering an atmosphere for ambitious ideas about both personal and global enlightenment, momentum grew.
Those of us old enough to do so will remember the first set of levels (that is to say, the demo) with perfect clarity, and recall the classic grunts, moans, and clangs that accompanied that fantastic atmosphere and ambitious level design.
Greg Kasavin of GameSpot wrote that "a thick, unsettling atmosphere fills this ambitious first-person action-adventure, which makes up for some frustrating moments and dated graphics with plenty of chills, variety, and originality".
Ambitious efforts to foster an overall atmosphere of creativity within the company include a mentor program for choreographically minded dancers.
Dreams deferred and defeated characterize so much of the Jersey atmosphere, from Bruce Springsteen's ambitious desperados dancing in the dark to Snooki's manic flights of desperate ambition.
In this cautious atmosphere, elaborate installations and ambitious projects are rarer than before, so they really stand out in the amnesiac channel-surfing experience of the art fair.
In the nearly three decades since it opened, the school has gone through one reinvention after another, all intended to improve the curriculum and atmosphere and draw more ambitious students from around the city.
