Erau wx 201 - Study guides, Class notes & Summaries

ERAU WX-201 Test 1 with correct Answers Graded A+ Lapse rate The rate at which temperature decreases with an increase in altitude. Wind direction the direction from which the wind is blowing a variable gas in the Earth's atmosphere is water vapor Troposhere The atmosphere layer closest to Earths surface in which we live Air molecules are held near the earth's surface by ____. Gravity The Temperature of the tropopause is much _____ than the temperature at Earth's...

Weather Exam 2- WX 201 ERAU Questions and Answers Radar Reflectivity The amount of energy received by the radar that is scattered back to it, usually by precipitation particles Attenuation Reduction of radar power by absorption of radiation by targets WSR-88D Weather Surveillance Radar 1988 Doppler dopplar radar specialized radar that can detect precipitation and movement of small particles and can approximate wind speed Aircraft Radar Low power(300-500w), 3cm wavelengt...

The Atmosphere - Answer-aerosol (a.k.a. particulates) rain, drizzle, fog, snow, ice crystals, cloud droplets Permanent gas - Answer-Nitrogen [N2]=78% Oxygen [02]=21% Others (Ar, Ne, He, Kr, H)=1% Variable gas - Answer-[H2O] -0 to 4% (highly variable) -Most abundant variable gas• [CO2] -0.039% and rising [O3] -Highly variable, reactive gas -Upper atmosphere: protects life from UV light -Occurs naturally, absorbs harmful ultraviolet light from sun Greenhouse gases - Answer-H2...

Lapse rate - Answer-The rate at which temperature decreases with an increase in altitude. Wind direction - Answer-the direction from which the wind is blowing a variable gas in the Earth's atmosphere is - Answer-water vapor Troposhere - Answer-The atmosphere layer closest to Earths surface in which we live Air molecules are held near the earth's surface by ____. - Answer-Gravity The Temperature of the tropopause is much _____ than the temperature at Earth's surface - Answer-col...

station pressure - Answer-the actual air pressure computed at the observing station sea level pressure - Answer-the standard level of pressure 29.92 inches ideal gas law - Answer-the relationship PV=nRT, which describes the behavior of an ideal gas mercury barometer - Answer-consists of a glass tube open at the bottom end and partially filled with mercury barometric pressure - Answer-the pressure due to the weight of the atmosphere; also called air pressure or atmospheric pressure ...