1. Fundamentals of Remote Sensing Gathering information without physical contact

2. Can you sense things remotely?

3. Remote sensing may be accomplished in any of several ways A LOT further away Further away Close up Caroline Wicks

4. Organic content of soil

5. LIGHT COLORWHITE BACKGROUND (WB) SOIL 1% SOIL 1 (SOIL 1/WB)*100 SOIL 2% SOIL 2 (SOIL 2/WB)*100 RED DEEP RED IR 1 IR 2 IR 3 IR 4 1.Take a set of readings on the white background 2.Take a set of readings of Soil Sample 1 3.Divide Soil readings by white readings and multiply by 100 4.Repeat with Soil Sample 2 5.Graph your percentages vs. wavelength

6. 1. Graph percent reflectance of soil 1 vs. wavelength. 2. Connect points with a solid line. 3. Graph percent reflectance of soil 2 vs. wavelength. 4. Connect points with a dotted line. 5. Make a legend.

7. Soils rich in organics have lower reflectances

8. So, why can’t we just use our eyes? Oil or Algae? How do you know?

9. They don’t tell the whole story! Oil Spill Red Tide (Algal Bloom)

11. Polar Orbiting Earth Satellite POES

12. Geostationary Orbiting Earth Satellites (GOES)

13. POES

14. GOES Photo: ESA

15. Electromagnetic Energy

17. SeaWiFS Instrument Package Sea-viewing Wide Field of view Satellite Carried on the satellite “Seastar” Senses visible and NIR (near infra-red) Ocean Color

19. TOPEX/Poseidon

20. Jason

21. RADAR = RAdio Detection And Ranging

22. Satellite Altimetry TOPEX/POSEIDON

23. AVHRR AdVanced High Resolution Radiometer

24. True-Color Imagery Land Water Clouds

25. Chesapeake Bay Stream Sediments

26. Brazil Rainforest Ex-Rainforest

27. Try interpreting some satellite images

29. Temperature A BB A 4 3 2 5 6 7 8 2021 20 22 27 28 26 1 2832 3028

30. 2021 2022 27 28 26 2832 3028

31. 1 2 3 4 8 7 6 5 9 1314 15 16 1211 10 Mapping Grid 20 – 24 o = Blue 25 – 28 o = Orange 29 – 32 o = Red

32. Using the IR Thermometer DO NOT point the thermometer at another person. Point at target and pull trigger. Release and record the temperature in the appropriate spot on the recording grid. Record about 4 temperatures per grid area. Return to your seat and “color” mapping grid. Be sure to include a legend of colors.

34. Transpiration cools leaves

35. RADARSAT uses microwaves

36. Passive or Active?

38. Remote Sensing Techniques Continuing to Evolve