Exam 1 Flashcards
true gravity (g)
vector that accounts for the centrifugal force generated by the rotating earth
hydrostatic balance
no vertical atmospheric motion
potential temp (theta)
temp of dry air parcel if brought to 1000 Pa (compress/expand) w/ no transfer of energy in/out of volume)
reversible thermodynamic process
when a system undergoes a thermodynamic process and both system and environment goes back to original state when process is reversed
geopotential (phi?)
the work done to raise a body from sea level against the force of gravity
Why is the DALR constant?
because it doesn’t have moisture (moisture will warm the air parcel)
apparent forces
a geocentric reference frame is stationary respect to rotating earth (latitude/longitude)
inertial motion
object will keep moving unless acted upon
noninertial reference frame
is reference frame (lat/long) thats in motion, then an object @ rest is really not at rest w/ respect to the frame, some acceleration is occuring
centrifugal
outward
centripetal
inward
true gravity (g)
accounts for centrifugal accel generated by rotating earth
gravitational accel (g*)
@ mean sea level=9/81 m/s^2 (towards center of earth)
equation of state (ideal gas law)
assumes the behavior of the gas conforms to the idealized relation among temp, pressure, and volume. A good assumption at high temps and low pressures
hypsometric equation
relates the thickness of the atmosphere to the mean temp of the atmosphere
accel due to PGF is equal to
gradient in geopotential on an isobaric surface density is no longer in the equation
energy
ability to do work
specific energy
energy per unit mass
heat
energy being transferred
law of conservation of energy
change in internal energy of a class system is equal to the amount of heat supplied-amount of work done by system on its surroundings
adiabatic
no exchange of energy (heat) between volume of gas surrounding environment
diabatic
radiation, friction, conduction
2nd law of thermodynamics
energy related changes to a system and immediate surrounding environment (work done on surroundings by an expanding air parcel)
entropy
thermodynamic property representing the unavaliability of energy to do work (evolution of a system through time)
isentropic
potential energy is constant