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LAB4_092011 - NAME MSC 243 LAB 4 TROPICAL CYCLONES Due by...

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MSC 243 LAB 4. SEPTEMBER 20 2011 TROPICAL CYCLONES Due by the end of today’s Lab (3:15pm) After the excitement of multiple tropical storms and hurricanes, the tropical activity has quietened down in the last week. The only system out there is “INVEST 98”, a disturbance that may become a tropical depression in the next day or two. 1. INVEST 98: Current Observations Go to http://tropic.ssec.wisc.edu/ and click on the “I” symbol in the central Atlantic. A pop-up window will appear with a map and links. a. First, click on “Vis (1km)” and animate the image. At roughly what latitude and longitude (to the nearest tenth of a degree) do you estimate the center of circulation? It is not necessarily at the spot overlaid on the satellite loop. b. Now click on “VIS/SWIR”. Do you see any cirrus clouds moving outward from the disturbance? This is part of the “outflow”. Although it may be difficult to see on the animation, would you expect the outflow to be cyclonic or anticyclonic? c. Now click on “IR-NHC” and animate the image. Is there some deep convection developing near the center, or is most of the convective activity far from the center (roughly how far in km, given that one degree is approximately 100 km)?
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