Presentation on theme: "Grab a book!. Do Now 1.What’s the difference between a cumulus, stratus, and cirrus cloud? 2.What colors represented these clouds on infrared satellite."— Presentation transcript:
Do Now 1.What’s the difference between a cumulus, stratus, and cirrus cloud? 2.What colors represented these clouds on infrared satellite images? 3.Why do you think it is important that we know cloud height?
Announcements Multiple choice and vocab test next Wednesday Chess Club begins MONDAY Oct 15. – Students must sign up in the lunchroom on the sheet posted on the back wall, and plan to be in room 519 right at dismissal on Monday, October 15. – Parents must pick players up at 6:00 in front of the school. – Only the first 20 to sign up may attend
What is it? Infrared satellite imagery senses surface and cloud top temperatures by measuring the wavelength of electromagnetic radiation emitted from these objects. This energy is called "infrared". – High clouds, very cold, appear white – Mid-level clouds, somewhat warmer appear light gray. – Low cloud are warmer, appear as a dark shade of gray or black. Often, low clouds are the same temperature as the surrounding terrain and cannot be distinguished at all.. (National Weather Service)
Infrared satellite imagery Satellites record long-wave infrared radiation with wavelengths in the atmosphere emitted by cloud tops, land masses, oceans, ice and snow. Most things on Earth emit long-wave infrared radiation (warmer objects emit more than colder ones. Hence, the relative amounts of infrared radiation emitted by cloud tops, land, oceans and snow/ice give information about their relative temperatures
What is Doppler Radar? http://www.youtube.com/watch?v=lEBdXO4V PW0 http://www.youtube.com/watch?v=lEBdXO4V PW0
Doppler Imagery A radar tracking system using the Doppler effect to determine the location and velocity of a storm, clouds, precipitation, etc. It does this by beaming a microwave signal towards a target and listening for its reflection, then analyzing how the frequency of the returned signal has been altered by the object's motion. This variation gives direct and highly accurate measurements of the radial component of a target's velocity relative to the radar.
Cloud article Read the article that I have passed out. We’re moving to clouds tomorrow and will be spending vast majority of the next few days doing labs.
Cloud article finished Answer the following questions: 1.Why do some people say that wind is a paradox? 2.What time of radar system would we use to determine wind speed? 3.What is the primary mover of air? 4.Wind blows from areas of _____________ to areas of __________________. 5.Which way does the Coriolis Effect deflect air?