{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

lect_05 - The Atmospheric Continuum • In atmospheric...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: The Atmospheric Continuum • In atmospheric dynamics (ocean dynamics also) we do not treat the fluid as a collection of individual molecules. • Instead we treat the fluid as a continuous medium (or continuum) in which a “point” is a volume element that is very small compared to the total fluid volume but still contains a very large number of molecules . • These volume elements are commonly called “air parcels” or “air particles.” • The properties of these volume elements describe the state of the atmosphere. • For further reading, see Martin section 1.1. Newton’s Second Law • Atmospheric motions are governed by Newton’s second law of motion, which states that the rate of change of momentum of an object equals the sum of all the forces acting. ( ) ∑ ∑ ∑ = = = F ma F dt dv m F mv dt d Fundamental Forces • To understand atmospheric motions, Newton’s second law requires that we understand the forces that act on a fluid parcel. • There are two types of forces: body forces and surface forces....
View Full Document

{[ snackBarMessage ]}

Page1 / 7

lect_05 - The Atmospheric Continuum • In atmospheric...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon bookmark
Ask a homework question - tutors are online