1. Remote Sensing learning about the world from a distance

2. I. What and Why

3. What and Why… What: Obtain information without a physical sample Why: Save Money Save Time Large Scale (the big picture)

5. II. Requirements

6. A. Energy – Not Matter Remote Sensing involves gathering data and information about the physical "world" by – detecting and measuring signals composed of radiation, particles, fields from objects located beyond the immediate vicinity of the sensor – The radiation, particles or fields are forms of ENERGY that can be detected

7. B. Detector Device to detect energy and record signal data – Camera, scanner, CMOS chip, particle counter, etc. – photograph, digital file, etc.

8. C. Platform Some way to support or transport the detector – Person, truck, weather balloon, aircraft, space shuttle, satellite, etc.

9. D. Analyze and Interpret extract information about features, objects, and processes in the Earth's land, oceans and atmosphere or places in the solar system and universe that we can’t visit

10. E. Supporting Organizations Cooperation and support of remote-sensing technology – Public and Private Universities – Public and Private Corporations – National and International Organizations University of Michigan, University of Houston Raytheon, SpaceX, NASA, NOAA, JAX, DLM United Nations - IPCC

11. III. Two Main Classes of Sensing

12. A. Active Send out “man-made” energy and record the reflected signal – Radio (radar) – LASER (lidar) – Microwave

13. B. Passive Measure “natural” signals emitted by objects or reflected from “natural” sources – Sun or other stars – Earth (infrared)

14. III. Layers of Information

15. A. Each Detector provides a single type (layer) of Information

16. B. Need many types of Instruments for complete evaluation

17. Solar System Satellites - NASA

18. It’s Getting a Little Crowded!

19. Quiz 1.What is Remote Sensing 2.Why do humans use Remote Sensing? 3.What are the Requirements for Remote Sensing? 4.Compare Active vs. Passive Sensing 5.Why do we say there are Layers of Information when considering Remote Sensing? 6.How do we obtain multiple layers of information?