Modeling Remote Sensing

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Modeling Remote Sensing

• Pete ArvedsonSatellites Education
  ConferenceCalifornia State University, Los
  AngelesAugust 11, 2006

Circuit and materials developed by Duane Laursen
and Pete Arvedson, La Puente High School Academy
of Science Engineering, La Puente, California
2
What is this session all about?

• In a word
• Reflectivity
• Studied using
• Remote Sensing
• Image Processing

Circuit and materials developed by Duane Laursen
and Pete Arvedson, La Puente High School Academy
of Science Engineering, La Puente, California
3
Electro-Magnetic Radiation
American Chemical Society. Chemistry in the
Community, 4th edition,
Circuit and materials developed by Duane Laursen
and Pete Arvedson, La Puente High School Academy
of Science Engineering, La Puente, California
4
Electro-Magnetic Spectrum
American Chemical Society. Chemistry in the
Community, 4th edition,
Circuit and materials developed by Duane Laursen
and Pete Arvedson, La Puente High School Academy
of Science Engineering, La Puente, California
5
Circuit and materials developed by Duane Laursen
and Pete Arvedson, La Puente High School Academy
of Science Engineering, La Puente, California
6
Remote Sensing

• EMR (light) from sun reflected by Earths
• Water
• Land
• Vegetation
• Cultural features
• Clouds
• Particulates

Circuit and materials developed by Duane Laursen
and Pete Arvedson, La Puente High School Academy
of Science Engineering, La Puente, California
7
Remote Sensing

• Reflected EMR detected by satellite-based
  electronic sensors

Circuit and materials developed by Duane Laursen
and Pete Arvedson, La Puente High School Academy
of Science Engineering, La Puente, California
8
Remote Sensing

• Sensed EMR converted to radio signal
• Radio signal transmitted from satellite platform
• Transmitted signal received by Earth station

Circuit and materials developed by Duane Laursen
and Pete Arvedson, La Puente High School Academy
of Science Engineering, La Puente, California
9
Image Processing

• Radio signal received, ingested by computer
  hardware
• Ingested signal converted to image
• Image manipulated to enhance specific features

Circuit and materials developed by Duane Laursen
and Pete Arvedson, La Puente High School Academy
of Science Engineering, La Puente, California
10
Circuit and materials developed by Duane Laursen
and Pete Arvedson, La Puente High School Academy
of Science Engineering, La Puente, California
11
Atmospheric Filter
Which wavelengths of reflected light should be
measured?
American Chemical Society. Chemistry in the
Community, 4th edition,
Circuit and materials developed by Duane Laursen
and Pete Arvedson, La Puente High School Academy
of Science Engineering, La Puente, California
12
Reflectivity Varies with Object
Which wavelengths do surface features reflect?
The GLOBE Program. MultiSpec Tutorial, 1995
Circuit and materials developed by Duane Laursen
and Pete Arvedson, La Puente High School Academy
of Science Engineering, La Puente, California
13
Filters allow separate measurement of each
waveband
Circuit and materials developed by Duane Laursen
and Pete Arvedson, La Puente High School Academy
of Science Engineering, La Puente, California
14
Suggested Lesson Sequence

• Physics of light
• Wavelength, Frequency, Velocity
• Color Theory
• Wavelength color
• Primary color addition/subtraction
• Basic electronics
• Component ID function
• Soldering
• Ohms Law - series parallel circuits

Circuit and materials developed by Duane Laursen
and Pete Arvedson, La Puente High School Academy
of Science Engineering, La Puente, California
15
Lesson Sequence (contd)

• Sensor construction
• Sensor testing
• Remote sensing experiment varying
• Color texture of reflective surface
• Filter (color of light received by sensor)
• Calculations Graphing

Circuit and materials developed by Duane Laursen
and Pete Arvedson, La Puente High School Academy
of Science Engineering, La Puente, California
16
Lesson Sequence (contd)

• MultiSpec imaging multispectral Landsat data
• Graphing reflectivity
• Comparison of MultiSpec reflectance graph with
  model sensor reflectance graph
• Final research report

Circuit and materials developed by Duane Laursen
and Pete Arvedson, La Puente High School Academy
of Science Engineering, La Puente, California
17
Completed Model Sensor
ElectrolyticCapacitor
Photoresistor(in opaque tube)
Resistor
Antenna
Coil
npn Switching Transistor
Breadboard
Dry Cell
Circuit and materials developed by Duane Laursen
and Pete Arvedson, La Puente High School Academy
of Science Engineering, La Puente, California
18
Vernier LoggerPro Screen
Circuit and materials developed by Duane Laursen
and Pete Arvedson, La Puente High School Academy
of Science Engineering, La Puente, California
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Sample Data
Circuit and materials developed by Duane Laursen
and Pete Arvedson, La Puente High School Academy
of Science Engineering, La Puente, California
20
Sample Relative Reflectance
Circuit and materials developed by Duane Laursen
and Pete Arvedson, La Puente High School Academy
of Science Engineering, La Puente, California
21
Sample Reflectivity Graph
Circuit and materials developed by Duane Laursen
and Pete Arvedson, La Puente High School Academy
of Science Engineering, La Puente, California
22
MultiSpec Image

• Landsat 5 data
• Red-Green-Blue
• 15km x 15km on ground
• Centered on La Puente HS, CA
• 30m pixel resolution

Circuit and materials developed by Duane Laursen
and Pete Arvedson, La Puente High School Academy
of Science Engineering, La Puente, California
23
Circuit and materials developed by Duane Laursen
and Pete Arvedson, La Puente High School Academy
of Science Engineering, La Puente, California
24
Circuit and materials developed by Duane Laursen
and Pete Arvedson, La Puente High School Academy
of Science Engineering, La Puente, California
25
Selection Area
Circuit and materials developed by Duane Laursen
and Pete Arvedson, La Puente High School Academy
of Science Engineering, La Puente, California
26
Reflectance of Selected Area Measured with
MultiSpec
Circuit and materials developed by Duane Laursen
and Pete Arvedson, La Puente High School Academy
of Science Engineering, La Puente, California
27
Compare Reflectance Graphs
Circuit and materials developed by Duane Laursen
and Pete Arvedson, La Puente High School Academy
of Science Engineering, La Puente, California
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California Science Content Standards that Can Be
Addressed by this Project

• K - 1a
• 1 - 3c
• 2 2e, 3ac
• 3 1ad, 2abcd
• 4 1ag, 3a, 5c
• 5 2f, 3c, 4bd
• 6 3ad, 4ab, 5a

• 7 6abefg
• 8 4d
• 9-10-11-12
• Physics
• Chemistry
• Biology
• Earth Science

Circuit and materials developed by Duane Laursen
and Pete Arvedson, La Puente High School Academy
of Science Engineering, La Puente, California