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A Quest to Understand the Dancing Light of Auroras. Determining Local Magnetic Field Strength on Location And Predicting The Dancing Auroras at School settings N. Craig L. M. Peticolas Space Science Laboratory http://ds9.ssl.berkeley.edu/themis Vic Trautman Petersburg Schools, Petersburg AK.
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A Quest to Understand the Dancing Light of Auroras Determining Local Magnetic Field Strength on LocationAnd Predicting The Dancing Auroras at School settingsN. CraigL. M. PeticolasSpace Science Laboratoryhttp://ds9.ssl.berkeley.edu/themisVic TrautmanPetersburg Schools, Petersburg AK
Magnetometer Schools in 10 States Petersburg City Schools: Victor Trautman ……………………………… Petersburg, AlaskaChippewa Hills High School: Cris DeWolfRemus,MichiganHot Springs High School: Sean Estill………………………………………. Hot Springs,MontanaWestern Nevada Community College: Terry Parent; Robert CollierCarson City, NevadaFort Yates Public School: Frank Martin; Harriet Howe ……………..…… Fort Yates,North DakotaUkiah School: Laura OrrUkiah,Oregon Northern Bedford County High School: Keith Little ……………………… Loysburg,PennsylvaniaRed Cloud High School: Wendell GehmanPine Ridge, South DakotaShawano Community High School: Wendy Esch ………………………… Shawano, WisconsinNorth County Union Jr. High School: Holly WilleyVermont
Fluxgate Magnetometer Setup We provided a technical users’ manuals along with GMAG unit; installed all 10 magnetometers, and Provided ground data processing, data access, and archiving procedures Fluxgate Magnetometer Electronics Circuit Board EPO Magnetometer Chassis Atop Magnetic Shield Calibration System Fluxgate Sensor and cable in garden hose Fluxgate Sensor Installed in Ground
Magnetometer data in school • Summary • Magnetometers in 13 schools in 10 states • 14+ teachers involved • Data on the web • Mostly high school classes • Students excited by wiggles and spectrograms • Student research
Research Questions How do you determine the Intensity of the Total Local Magnetic Field using School Magnetometer data? How can you predict the onset of aurora using the data from the Magnetometer? 22:36:46 UT 12/02/2005 (30 min plot) 23:06:46 PM 12/02/2005 Shawano
Not to scale XH (magnetic north) 21615 nT -550 nT YD (magnetic east) Z (down) 45175 nT The GEONS Data Vector Addition • X: the strength in nT of the magnetic field in the direction of magnetic north pole • Y: the strength in nT of the magnetic field in the magnetic east direction • Z: the strength in nT of the magnetic field pointing down B represents the total strength of the magnetic field in the region.
Active Day Quiet Day Greater than 50 nT difference between X max and X min Less than 50 nT difference between X max and X min 12/12/05 Petersburg AK 12/07/05 Petersburg AK
Data Collection • Print off a days XYZ data. • Using a clear metric ruler 15 mm length, align the start of the ruler with the left side of the X scale. • Using a sharp pencil select the highest reading of the X component and draw a line to the X component scale. • Repeat drawing a line on the X component minimum reading. • Using the metric ruler measure the difference in mm, the scale is very close to 1mm = 5 nT.
Determining Your Kp index needed for an Aurora Display The actual map (on the web) will give you the Latitude-Longitude position for each location. http://www.sec.noaa.gov/Aurora/index.html http://spaceweather.com/glossary/kp.html