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Optical Imaging and Field Spectroscopy: CLPX 2002 and 2003 Thomas H. Painter.

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Presentation on theme: "Optical Imaging and Field Spectroscopy: CLPX 2002 and 2003 Thomas H. Painter."— Presentation transcript:

1 Optical Imaging and Field Spectroscopy: CLPX 2002 and 2003 Thomas H. Painter

2 8 th CLP Workshop, Boulder, CO Spectroscopists Rick Forster (U of Utah) Nate Mulherin (CRREL) H.P. Marshall (U of Colorado) Elke Ochs (CRREL) Janet Hardy (CRREL) Michael Eastwood, Chuck Sarture, Ian McCubbin, Robert Green (JPL)

3 8 th CLP Workshop, Boulder, CO Hyperspectral Remote Sensing Greatest spectral leverage for –Subpixel snow covered area –Canopy closure –Subpixel snow grain size –Snow impurity concentrations –Subpixel snow albedo –Snow surface liquid water content –Vegetation classification (e.g. Potter Creek Site) Nadir view  maximum viewable snow cover

4 8 th CLP Workshop, Boulder, CO Hyperspectral Remote Sensing Comparisons and complementary data –Snow covered area (passive, radar) –Grain size (passive, radar) –Snow liquid water content (passive, radar) –Canopy closure (passive, radar) Field spectral albedo comparisons with field passive and radar instrumentation Demonstration of complementary spaceborne instrumentation (Hyperion+)

5 8 th CLP Workshop, Boulder, CO Instruments NASA Earth Observing-1 Hyperion (spaceborne) NASA/JPL Airborne Visible Infrared Imaging Spectrometer (AVIRIS) (airborne) Analytical Spectral Devices Full-Range Field Spectroradiometer (field)

6 8 th CLP Workshop, Boulder, CO EO-1 Hyperion Spectral range 0.4   2.5  m Number of bands220 Spatial resolution30 m Swath Width7.8 km Repeat Cycle16 days Local acquisition time 10:30 A.M. Signal to Noise40-160

7 8 th CLP Workshop, Boulder, CO Airborne Visible Infrared Imaging Spectrometer (AVIRIS) Spectral range 0.4   2.5  m Number of bands224 Spatial resolution20 m (nominal) 1.5 m (low alt) Swath Width12 km 1 km (low alt) Local acquisition time variable Signal to Noise

8 8 th CLP Workshop, Boulder, CO ASD FR Field Spectroradiometer Spectral range 0.35 – 2.5  m Spectral resolution –  m Spectral sampling –  m Weight7.2 kg

9 8 th CLP Workshop, Boulder, CO ACQUISITIONS HYPERION February 15, 2002 Fraser MSA R: 0.66  m G: 0.91  m B: 1.33  m Fraser Experimental Forest 7.8 km N

10 8 th CLP Workshop, Boulder, CO ACQUISITIONS HYPERION March 19, 2002 Fraser MSA R: 0.66  m G: 0.91  m B: 1.33  m Fraser Experimental Forest N

11 8 th CLP Workshop, Boulder, CO Fraser MSA St. Louis Creek ISA Fool Creek ISA Alpine ISA LSOS HYPERION March 19, 2002 Fraser MSA R: 0.66  m G: 0.91  m B: 1.33  m

12 8 th CLP Workshop, Boulder, CO Field Calibration

13 8 th CLP Workshop, Boulder, CO LSOS Field Spectra

14 8 th CLP Workshop, Boulder, CO LSOS Field Spectra March 31, 2002, IOP-2  = 36°,  = 0°

15 8 th CLP Workshop, Boulder, CO Field Calibration

16 8 th CLP Workshop, Boulder, CO Hyperion – calibrated spectra Field calibrated wavelength (  m) reflectance Hatch retrieved wavelength (  m) reflectance

17 8 th CLP Workshop, Boulder, CO AVIRIS CLPX Acquisitions

18 8 th CLP Workshop, Boulder, CO 2002 Acquisitions Fraser MSA, April 4, 2002

19 8 th CLP Workshop, Boulder, CO ACQUISITIONS Fraser MSA, April 4, 2002

20 8 th CLP Workshop, Boulder, CO ACQUISITIONS AVIRIS April 4, 2002 Rabbit Ears MSA R: 0.66  m G: 0.91  m B: 1.33  m N

21 8 th CLP Workshop, Boulder, CO ACQUISITIONS AVIRIS April 4, 2002 Rabbit Ears MSA R: 0.66  m G: 0.91  m B: 1.33  m N

22 8 th CLP Workshop, Boulder, CO ACQUISITIONS AVIRIS April 4, 2002 Rabbit Ears MSA R: 0.66  m G: 0.91  m B: 1.33  m N

23 8 th CLP Workshop, Boulder, CO ACQUISITIONS AVIRIS April 5, 2002 North Park MSA R: 0.66  m G: 0.91  m B: 1.33  m N

24 8 th CLP Workshop, Boulder, CO ACQUISITIONS AVIRIS April 4, 2002 Fraser MSA (Alpine ISA) R: 0.66  m G: 0.91  m B: 1.33  m N

25 8 th CLP Workshop, Boulder, CO Vegetation Classification RGBMinimum Distance Potter Creek ISA/NCAR Tower - April 4, 2002

26 8 th CLP Workshop, Boulder, CO Mt. Rainier, WA USA 4393 m AVIRIS 14 June 1996 = nm = nm = nm

27 8 th CLP Workshop, Boulder, CO Mt. Rainier, WA USA 4393 m AVIRIS 14 June 1996 Water Vapor

28 8 th CLP Workshop, Boulder, CO Mt. Rainier, WA USA 4393 m AVIRIS 14 June 1996 Liquid Water

29 8 th CLP Workshop, Boulder, CO Mt. Rainier, WA USA 4393 m AVIRIS 14 June 1996 Ice/Snow

30 8 th CLP Workshop, Boulder, CO Mt. Rainier, WA USA 4393 m AVIRIS 14 June 1996 = Water Vapor = Liquid Water = Ice/Snow

31 8 th CLP Workshop, Boulder, CO 2003 CLPX Acquisitions (Quicklooks) – February 19 Fraser Experimental Forest MSA

32 8 th CLP Workshop, Boulder, CO Hyperion Distribution

33 8 th CLP Workshop, Boulder, CO AVIRIS Distribution


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