Activity 4: volcanic Hazards: Airborne Debris! Create an entry in your table of contents with this name Write the name of the activity in BIG LETTERS on the next open page of your notebook.
Find your new seat Get ready for review and a quiz
Honors 10/19 Do Now: Is volcanic ashfall a good or bad thing? Why? Agenda Stamp investigate steps 1-2 Finish investigate Start digging deeper
Activity 4: volcanic Hazards: Airborne Debris! Goals: Understand why ash can affect a very large area Understand tephra and its hazards Interpret maps and graph data from eruptions to understand them better Understand that explosive force is not the only factor that determines potential for damage Interpret maps of wind to predict volcanic ash movement
Investigate pg 915 Create an entry in your table of contents Do the Think about it TAI Create the headings above underlined in your notebook underneath the title of the activity Complete steps 1-4 but do step 2b before 2a Use the provided graph paper for step 2 The Investigate Up to step 2 (graphing) must be finished as homework Due at the start of the period Tuesday October 19
Use pg 918-920 Do the CYU questions. Digging Deeper Do Figure Analysis for Figures 1-4 in the Digging Deeper. Complete the following for each figure CD- concrete detail(fact or observation) CD concrete detail(fact or observation) CM- commentary statement(idea, opinion, comment) Summary statement (One sentence to summarize the big idea conveyed in figure)
Figure Analysis Practice Make an entry in your notebook with this title Practice figure analysis. Use the provided figure to do a figure analysis Person A does first one person B paraphrases what they said and writes it down, then switch Do Rally Coach CD- concrete detail(fact or observation) Person A CD concrete detail(fact or observation) Person B CM- commentary statement(idea, opinion, comment) Person A Summary(One sentence summary of big idea of figure) Person B
Aerial-oblique photo of the Bonneville landslide. View is to the northeast with Mount Adams volcano in the distance. The Bonneville Dam and powerhouses (lower left) and the Bridge of the Gods (far right) flank the landslide. Photo courtesy of Derek Cornforth, Landslide Technology.
10-20-10 DO NOW: Discuss how much of a hazard airborne debris from a volcano is to Lacey, WA and justify it with key ideas from the investigation Agenda: Stamp HW digging deeper cyu and figure analysis Go over digging deeper Do U and A do question 4 first!
ASH LAPILLI Volcanic bombs are anything larger then 64mm(over 2 inches!) TEPHRA EJECTED FROM A VOLCANO
Hazards of ash Yellowstone Saint Helens comparison Yellowstone eruption had 1000x the ash volume but didn t cover 1000x more area for ashfall The ash fall from Yellowstone was just 1meter thick over 1000km squared!
Hazards of ash Ash causes breathing problems! Roofs can collapse under it weight Can cause lahars after rain events Can damage airplanes hence the Icelandic volcanic eruption of Eyjafjallajökull how do you say it anyway? http://www.youtube.com/watch?v=9jqsmztsww
Eyjafjallajökull
Eyjafjallajökull ash cloud Ash cloud map http://www.youtube.com/watch?v=k- 4TB47N3_Y Economic losses!!! http://www.youtube.com/watch?v=c0hktds arnw&feature=channel
Mt. Augustine volcanic eruption (Credit: Cyrus Read, U.S. Geological Survey)
Volcanic explosivity index: Based upon: VOLUME of material released Height that it reaches in the atmosphere.
U and A Activity 4 http://www.arl.noaa.gov/readybin/ashhypo.pl This website we will use for question 4 Different levels of the atmosphere travel at different speeds
At the end of 1 hr at the end of 2 hr This is position of the ash cloud high in the atmosphere This is position of the ash cloud at a midlevel in the atmosphere This is position of the ash cloud on the surface This is position of the ash as you might see from space without height considered
Du questions 1-4 of the U&A due tomorrow Do question 4 first with the map then the other 3
U and A question 4 This simulation is uses real time weather data to predict where an eruption of ash would go TODAY if Mount Saint Helens or any other of a number of mountains would erupt. This is important for commercial airliners. Jet planes + 50 erupting volcanoes = potential problems
10/21/10 Do Now: look at the poster provided and come up with a figure analysis be ready to share poster figure analysis Cd Cd Cm Sum Agenda Poster share out Pompeii Writers workshop
Saint Helens and Pelee
Saint Helens and Vesuvius(Pompei)
pompeii Pliny the younger account http://www.youtube.com/watch?v=ipfhyti7 qqc An overview of what happened http://www.youtube.com/watch?v=sdosw AQXYqk
http://www.youtube.com/watch?v=sdosw AQXYqk