remote sensing pedagogy and the wilheit curve
DESCRIPTION
Remote Sensing Pedagogy and The Wilheit Curve. College of Engineering Department of Atmospheric, Oceanic & Space Sciences. Chris Ruf University of Michigan, Ann Arbor. IGARSS 2011 Vancouver BC, CANADA 26 July 2011. Motivation. - PowerPoint PPT PresentationTRANSCRIPT
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Remote Sensing Pedagogy and The Wilheit Curve
Chris Ruf
University of Michigan, Ann Arbor
College of EngineeringDepartment of Atmospheric, Oceanic & Space
Sciences
IGARSS 2011Vancouver BC, CANADA
26 July 2011
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26 July 11
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Motivation
• Teaching remote sensing, and thinking about how it works in general, can be facilitated by explaining and understanding a few critical things…– The Forward Model: How sensor observations are related to
geophysical parameters– The Sensitivity: How the observations respond to changes in
geophysical parameters of interest (e.g. dTB/dWindspeed)– The Sensor Design: How the sensitivity varies with the type
of observation (e.g. dTB/dWindspeed vs. freq,pol’z,θi)– The Inversion Algorithm: To unscramble the forward model
and estimate geophysical parameters from the observations, choose sensor channels with dissimilar sensitivities
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Statement of Problem
• How does one capture both the dependence of the observations on the geophysical parameters and the interdependence of that dependence, from one sensor channel to the next?
• Answer suggested in Wilheit, T. T.: A model for the microwave emissivity
of the ocean's surface as a function of wind speed. IEEE Trans. Geoscience Electronics, GE-17, 244-249, 1979.
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The Paper
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The Wilheit Curves
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Using the Curves as a Guide for Sensor Design
High clouds, moderate vapor
High vapor, moderate clouds
moderate vapor, moderate clouds
High wind, moderate SST
High SST, moderate wind
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Are There Equivalent “Wilheit Curves” For Other Design Problems?
• Example: How best to staff a remote sensing research project?
• Project Requirements– Definition of scientific problem– Execution of the project– Obtaining funding, interaction with users, community
outreach
• Parameterize the staff members and identify the sensitivity of the requirements to each type of staff
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Wilheit Curves forThe Human Touch in Project Staffing
DIPLOMATICTACTLESS NORMAL
Community Engagement (funding, outreach, etc.)
Definition ofProblem
ProjectExecution
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Optimized Staffing
• Obtaining funding, interaction with users, community outreach (highly tactful)– Chooses words carefully, thinks before talks, has some familiarity with the
problem
– e.g. Headquarters Program Manager• Execution of the project (moderately tactful)
– Clear and succinct communication skills, follows instructions well
– e.g. Engineering Support Team• Definition of the scientific problem (tactless)
– Understands the science, speaks their mind, has general disregard for others
– Any suggestions from the audience?