Transcript Applying Geodesy Data in Societally Important

APPLYING GEODESY DATA TO SOCIETALLY
IMPORTANT QUESTIONS IN UNDERGRADUATE
COURSES
The webinar begins at:
12 pm PT | 1 pm MT | 2 pm CT | 3 pm ET
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This work is supported by the National Science Foundation’s Transforming Undergraduate Education in STEM program within the
Directorate for Education and Human Resources (DUE-1245025).
WEBINAR LEADER
Beth Pratt-Sitaula
UNAVCO* Education Specialist and GETSI Project Co-PI
*UNAVCO is NSF’s Geodetic Facility dedicated to providing research and educational
support for GPS, strain meters, InSAR, and terrestrial lidar. The non-profit is governed
by a consortium of >100 member universities.
WEBINAR PARTICIPANTS
Courses Taught
0% 10%20%30%40%50%60%70%80%
Institution Type
0%
10%
20%
30%
40%
50%
Intro Geology
Intro Earth Sys./Climate/Envir. Sci.
MS/PhD granting
Intro Natural Hazards
4 year
ANY INTRO
2 year
Geodesy/Geophysics
other
Tectonics
Familiarity with geodesy
0%
what is geodesy? - 1
2
10% 20% 30% 40% 50%
Structural Geology
Majors Earth Sys./Climate/Envir.
Sci.
Volcanology
Geomorphology
I mention geodesy in
classes - 3
Hydrogeology
4
Other
I'm a geodesist - 5
ANY MAJORS
WEBINAR FORMAT
• Presentation (~35 minutes)
– Geodesy & its applications
– GETSI Project
– Existing geodesy teaching resources
• Discussion (~35 minutes)
– Most valuable future module topics to address
– Types of curricular items of greatest value
– Other geodesy teaching resources you know of
– Questions
GEODESY IS…
…the science of accurately measuring the
Earth’s size, shape, orientation, mass
distribution and the variations of these with
time.
Traditional geodesy:
Precise positioning of
points on the surface of the
Earth
Modern geodesy:
wikipedia.org
A toolbox of techniques to
better measure the Earth
5
UNPACKING THE GEODESY TOOLBOX
• GPS (Global Positioning
System)
• InSAR (Interferometric
synthetic aperture radar)
• LiDAR (Light detecting and
ranging)
• Strain meters, tiltmeters, creep
meters
• Gravity measurements
• Sea level altimetry
http://www.nasa.gov/topics/earth/features/graceImg20091214.
usgs.gov
html
www.jpl.nasa.gov
http://photojournal.jpl.nasa.gov/catalog/PIA00557
http://facility.unavco.org/data/maps/GPSVelocityViewer/GPSVelocityVi
http://www.iris.edu/
ewer.html
GEODESY APPLICATIONS
GPS &
Earthquake
Early Mean
Global
Warning
Sea
Level from
System
satellite
• Plate tectonics
altimetry
– Motions and mechanisms
• Hazard monitoring
– Volcanic, earthquake,
landslide
• Ice dynamics
– Mass changes, velocity
• Water resources
– Surface/ground water,
subsidence, sea level
“ignore” direct
signal
Focus
on the
multipath
Ice mass loss from GRACE
(Gravity Recovery and
Climate Experiment)
sealevel.colorado.edu
facility.unavco.org
Velocity from InSAR
Groundwater
storage changes
Permission from Sean Swenson (colorado.edu)
2003-2012 (GRACE)
Vegetation
GPS stations
show upward
climate.nasa.gov
movement
Snow depth
Florida wetlands
water level changes
from InSAR
landslides.usgs.gov
Analyzing GPS reflected signals
allows snow depth, vegetation,
soil moisture, and sea level to be
estimated in some locations.
http://xenon.colorado.edu/portal/
Permission from Twila Moon (uw.edu)
Permission from Mike Bevis (osu.edu)http://www.iris.edu/ serc.carleton.edu
WHY GEODESY FOR STUDENTS?
• Topics align well with Earth Science and
Climate Literacy Principles
• Real world applications are shown to increase
interest and learning
• Data analysis can increase critical thinking
skills and quantitative skills
• Measurement are on a human timescale
• Earth science majors are often not learning
about these critical research techniques
GETSI PROJECT OVERVIEW
Mission: Develop and disseminate teaching and
learning materials that feature geodesy data applied to
critical societal issues such as climate change, water
resource management, and natural hazards
• Funded by NSF’s Transforming Undergraduate
Education in STEM Type I grant
• Collaborators – UNAVCO, Mt San Antonio College,
and Indiana University in partnership with SERC and
NAGT.
• Will develop four modules (~2 weeks each)
– Two Intro-level
– Two Majors-level
GETSI PROJECT MODULES
• Module development and assessment following
model of SERC’s InTeGrate Project
• Year 1 module topics
– Intro  Ice mass and sea level change
Becca Walker (co-PI) & Leigh Stearns (co-author)
– Majors  Active tectonics and hazards using InSAR
and LiDAR data
Bruce Douglas (co-PI) & Gareth Funning (co-author)
• Year 2 – tell us what you would like to see
GETSI PROJECT INVOLVEMENT (WITH STIPEND)
• Two module co-authors in Year 2 ($7500; over ~15
months)
• Five beta-testers for each module ($200-500
depending on involvement level)
• Technical experts for some modules ($200-500
depending on involvement level)
Everyone from this webinar will receive announcements
when we solicit for the above but contact me
([email protected]) if you have particular
interests.
EXISTING GEODESY TEACHING RESOURCES
Handout with URLs of relevant sites is on webinar
homepage
http://serc.carleton.edu/getsi/workshops/charette/Jan
10.html
Or google “serc getsi” and navigate
to Workshops.
Stopping PPTX to show webpages directly
GENERAL GEODESY RESOURCES
• GETSI’s website on SERC – will be the portal for
teaching materials access
GENERAL GEODESY RESOURCES
• UNAVCO’s Data for Educators
GENERAL GEODESY RESOURCES
• SERC’s Cutting Edge “Teaching Geodesy” site
USING GPS TO DETERMINE INFINITESIMAL STRAIN
• Module for structural geology courses
GPS AND INTRO LEVEL RESOURCES
• Activity: Earthquake hazard and GPS data in
Cascadia
INSAR TEACHING RESOURCES
• InSAR interactive tool
• Supporting teaching resources
LIDAR TEACHING RESOURCES
• OpenTopography’s
Landform Catalog
• Tutorial on creating
GoogleEarth format
LiDAR images from
any data set in
OpenTopography
Airbourne LiDAR
Canopy Height (ft)
TLS TEACHING RESOURCES
• Terrestrial Lasar Scanning (TLS) at
undergraduate field camps
DISCUSSION FORMAT
• I will pose some questions
• Start by raising your hand to speak or typing in
Chat
• Use *6 to unmute yourself and talk (then
mute again)
DISCUSSION
What topics would you like to see modules
address and why?
• Hazards
– Volcanic, earthquakes, landslides…
• Climate change
– Ice mass changes, ice velocity, sea level…
• Water resources
– Ground water mass, surface water…
DISCUSSION
What types of teaching resources do you
adapt/adopt most?
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•
•
•
•
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Instructor notes/technical background info
“Prepared” data sets for students use
Accessible data portals
Lab/class activities
Homework
Presentations/animations
Assessments (rubrics, criteria)
Other?
DISCUSSION
Do you already teach about or use geodesy
data?
DISCUSSION
Comments/suggestions?
Questions?
– About GETSI?
– About existing resources?
IN CONCLUSION
• THANK YOU
• Contact me with questions or comments
[email protected]
• Please fill out evaluation form (link will be
emailed shortly)