Period 2 By Tiffany Agustin Precious Joy CalaroMusngi

Period 2 By: Tiffany Agustin, Precious Joy Calaro-Musngi, Jazmina Lafitaga, Kamalani Kaeha, Brinell Kaleikini, and Chelsie Sablan

Where Are Dust Devils Commonly Located? Our Research Question Is Important Because… If we do go to mars we know not to allow people and our space rover near that area Our Science Question Is Interesting Because… We get to study about dust devils and where its located.

Dust Devils: • Forms from strong surface heating, usually at the interface between different surface types; Such as asphalt and dirt, or irrigated fields and dirt roads. • Occur under clear skies and light winds when the ground can warm the air to temperatures well above the temperatures just above the ground. • Generally smaller, and less tense than a tornado. But they can still be destructive as they lift dust and other debris into the air. • Usually range from 10 -300 feet in diameter and an average height of approximately 500 -1000 feet. • Usually last for a couple of minutes. Under optimal conditions, however they sometimes last for tens of minutes. • Wind speeds in larger dust devils can reach 60 miles per hour or greater.

n Dust Devils are formed by strong surface heating so the ground could be hotter then the air above it. Hot air rises and goes through the cool ai above it and they start to circulate. The horizontal gusts of wind blow, therefore creating towering columns. Hot air rising in the center makes the devil swirl faster. http: //weathersavvy. com/mars_dustdevils. jpg

Dust Devils are formed by: n Strong surface heating in terrace between different surfaces n Clear skies and light winds n Up rush of hot air starts • http: //www. universetoday. co m/14890/dust-devils-on-mars/

Chelsie, Kamalani, Precious, Tiffany: If there are many dust devils then by looking at pictures of dust devils most dust devils will be found in Xenthe Terra because it has surface heating, it has a better chance of mixing surfaces, and it could create an up-rush. Jazmina, Brinell: If there are many dust devils then by looking at pictures of dust devils most dust devils will be found in Alba Patera because it has different temperatures, surfaces, and elevation then Xenthe Terra.

Spacecraft NASA’s Mars Odyssey Camera THEMIS Camera Image Type Visible Images- to see details within the crater MOLA- to see context or image and depth Geologic Features Studied Dust devils match our research question because we are trying to figure out where dust devils are commonly located. Geographic regions we focused on The part of the map we will explore to study dust devils will be Xanthe Terra and Alba Patera.

Sample Size __ THEMIS Images used to gather data Categories of Data to be collected and “Why” Elevation Range Image ID # Latitude/ Longitude – Misc. Data – To record any other interesting information not warranted by our necessary data categories but certainly important to our study Measurements Picture Diameter- Rough estimation relative to image parameters based on THEMIS Camera’s Visible Image range of 18 km x 30 km

– – § Website list: http: //themis. asu. edu § Data collection steps on site: Go to the http: //themis. asu. edu website Click on the “Wind/Dust” topic Click on “Dust Devils Days (Released July 2004) 6

This graph shows the locations of where our pictures were taken, charted by latitude and longitude.

This graph shows the elevation of each sample picture that we took as data. Patterns within the graph involve the elevation is usually an even integer.