Sc News August, 2011 Issue 12 Event: Hurricane Irene hits Eastern USA Time Line of Irene: Hurricane Irene viewed on 8/24 by the ISS (NASA) + Aug. 24th - Category 3 Hurricane east of Cuba (wind speeds reached 115 mph) + Aug. 27th - Category 1 Hurricane makes landfall in North Carolina (winds speeds @ 74 mph) SciNews is now on Facebook! + Aug. 28ⁿd - Tropical Storm makes landfall in New York Project website: http://sese.asu.edu/teacher-resources Event Description Lesson Description along major roads to mark routes for hurricane evacuation In this lesson students make observations on Hurricane Irene and use a data table from NOAA to graph the number and type of tropical cyclones observed per month from 1851-2010. (1) Introduce the event by viewing media sites/videos such as NASA satellite videos. Ask students to describe the hurricane and record their observations. (2) Discuss the different categories of cyclones using the Cyclone Classification Sheet. Ask students to predict in which month(s) they think the most Tropical Storms occur, and ask for reasons why. (3) Pass out the NOAA data table and the Hurricane Graph or plain graph paper. Have students plot up the NOAA data and assess their prediction. Ask older students for calculations based on the graph such as finding the % of tropical storms that become hurricanes. Lesson Materials - download on the SciNews Website: *Educator Background Material: NOAA Hurricane Basics handbook* (1) Videos/Media on Hurricanes: see website for links (2) Cyclone Classification Sheet: overview document (3a) NOAA data table: # of hurricanes per month since 1851 (3b) Hurricane Graph: graph for plotting the NOAA data table; 4 different versions are included for different grade levels (& a completed graph) Targeted Arizona State Standards (6th - 8th grade) Strand 1, Concept 3: Analysis and Conclusions - (PO1) Analyze data obtained in a scientific investigation to identify trends. (grades 6-8) Strand 1, Concept 4: Observations, Questions, and Hypotheses (PO1) Choose an appropriate graphic representation for collected data. (grade 6) Strand 3, Concept 1: Changes in Environments - (PO2) Evaluate the effects of natural hazards (hurricanes). (grades 6-8) - Location Path of Hurricane Irene (snapshot on 8/28/2011) colored- coded by wind speed/storm Aug. 28 2011 type as it makes its way up the Eastern North Atlantic Ocean Coast of the USA. tropical storm category 1 Graph of Irene Wind Speeds category 2 131 mph 111 mph 96 mph 74 mph 39 mph category 3 g. Au category 2 21 g. Au 26 category 1 tropical storm - Imagery - Each year hurricane season for the Northern Atlantic Ocean (officially June 1st to November 30th) peaks in late August through September when sea surface temperatures are the highest. The term ‘tropical cyclone’ is used to describe a low pressure system that generally forms in the tropics, is accompanied by thunderstorm activity, and rotates counterclockwise in the northern hemisphere (NOAA). Depending on wind speeds, tropical cyclones are classified as tropical storms, tropical depressions, and hurricanes (categorized 1-4). As the first hurricane of the 2011 season, Hurricane Irene grew to a category 3 off the coast of Florida before hitting the coastal regions of North Carolina to Maryland as a category 1. In these areas it caused widespread coastal erosion & flooding from the storm surge & wind damage. Although Irene was downgraded to a tropical storm as it moved north, heavy rains caused extensive flooding in low lying regions of New York and Vermont due to swelling creeks and reservoirs, and heavy mountain runoff. To view and track current tropical cyclones as they develop worldwide Signs like this one are posted visit http://crisislanding.appspot.com/ Hurricane Irene -4ne -3ca -2- urri h -1tropical storm tropical depression 1 pt. Se source: modified from nytimes.com Outer Banks North Carolina N North Carolina Credit: NASA/NOAA GOES Project Windham, NY road Credit: Nathan Brooks: NYT Credit: NOAA Informational Websites: (links provided on the SciNews website) + NOAA National Hurricane Center + USGS Hurricane Irene Activities + FEMA Hurricane Response + Google Maps displaying Hurricane Info + NASA Imagery and Videos of Hurricane Irene Alternative Lesson Plan: (link provided on the SciNews website) + CREATE-A-CANE: fun interactive online lesson from NOAA; students create the most ideal hurricane conditions Created by Erin DiMaggio ASU/NASA Space Grant Fellow Funded by ASU/NASA Space Grant (http://nasa.asu.edu/) To subscribe to the SciNews listserv send a message with your name, affiliation, & email address to: emailSCINEWS@asu.edu