Millibar - Study guides, Class notes & Summaries

WX 201 Exam 2 with correct Answers (Graded A) An unsaturated air parcel cools or warms at what rate? Dry adiabatic lapse rate (DALR) A saturated air parcel cools or warms at which rate? Moist adiabatic rate (MALR) If the environmental lapse rate is greater than the dry adiabatic rate, the atmosphere is: Absolutely unstable Surface cooling and warm air advection aloft generally do what to the atmosphere? Make it more stable An air parcel starts to rise freely when it firs...

WX 201 Exam 3 HW #1 & 2 Questions and Answers Upper-level winds in the middle latitudes of both hemispheres generally blow from ____. The west The pressure gradient force is directed from higher pressure toward lower pressure at all places on Earth. The Coriolis force acts at a ____ degree angle to the wind. 90 On a 500 millibar chart, ____ are drawn to represent horizontal changes in altitude which correspond to horizontal changes in pressure. Contour Lines The surface ...

Temperature - ANSWER-is a measure of the average kinetic energy of the molecules of a substance. Kinetic engery - ANSWER-is the energy an object possesses because of its motion. Pressure - ANSWER-is defined as force per unit area. Millibar - ANSWER-a unit of pressure used extensively by meterorolgists Density - ANSWER-mass per unit volume Wind - ANSWER-air in motion relative to the Earth's surface. Humidity - ANSWER-water vapor in the air Isopleth - ANSWER-generic term for ...

NIFE Weather Exam Practice Questions and Answers What is the composition of dry air? - ANSWER-78% nitrogen 21% oxygen 1% mixture of 10 other gases How much of the atmosphere, by volume, is composed of water? - ANSWER-0 to 5% What are condensation nuclei? - ANSWER--Nongaseous substances such as dust and salt particles, pollen, etc -Water molecules condense on these particles and form clouds What layer of the atmosphere is adjacent to the Earth's surface? - ANSWER-Troposphere List som...