In zonally averaged chemical transport models of the stratosphere, quasi-isentropic mixing is represented by diffusion in latitude. However, it is fairly certain that the real mixing is to some extent nonlocal, so that the diffusive representation is not formally justifiable. This issue is explored from a point of view that combines theory and empiricism. Several models of mixing are described ...

I plan to study abroad in the next few years and, although I've never seen a psychiatrist or anything, I am fairly certain I have anxiety. I can tell through my daily interactions and I am a psychology major so I used the manual to kind of self diagnose myself. I wanted to go talk to my college counselors about getting an emotional support dog soon so we can build a bond and then he/she can com...