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An airborne radar for the mapping of forest biomass and embedded carbon

Zimmerman Associates, Inc (ZAI). BioSAR 30 . An airborne radar for the mapping of forest biomass and embedded carbon. Presentation for the Third USDA Symposium Greenhouse Gases & Carbon Sequestration in Agriculture and Forestry March 23, 2005. Dr. Marc Imhoff, NASA GSFC

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An airborne radar for the mapping of forest biomass and embedded carbon

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  1. Zimmerman Associates, Inc (ZAI) BioSAR 30 An airborne radar for the mapping of forest biomass and embedded carbon Presentation for the Third USDA Symposium Greenhouse Gases & Carbon Sequestration in Agriculture and Forestry March 23, 2005

  2. Dr. Marc Imhoff, NASA GSFC Dr. Roger Dahlman, DOE BER Mr. John Litynski, DOE FE Acknowledgements

  3. Radar (RF) Remote Sensing of Biomass NASA Experiments DOE Refinements – BioSAR 30TM February 2005 Mission Features, Advantages, Benefits Spin-Off Company – Terresense Overview

  4. Radar energy is reflected by leaves Radar receivers are saturated by these reflections Beyond saturation, measurement not possible Radar Biomass load limits at saturation X-Band (10 GHz –   1”) ~ 10 tons/ha P-Band (500 MHz -   2’) ~ 100 tons/ha Radar Remote Sensing of Biomass

  5. 90 % of world biomass resides in stands of over 100 tons/ha For Radar remote sensing of 90% of world biomass need VHF frequency ~ 100 MHz,   10’ Location of World Biomass

  6. Airborne Small Synthetic Aperture Radar (SAR) Operates at 80-120 MHz,  ~ 10’ Low power < 1 watts Data collected at 166 KHz Data tagged with dGPS time and location Radar footprint is a 600 mt circle (80 acres) Processed cell size 30 x 300 meters (1 acre) Basic BioSAR 30 Technology

  7. NASA C-130 In Flight BioSAR 30TM antenna

  8. Smithsonian Tropical Research Institute Test Sites Biomass 200 to 300 tons/ha(above-ground, dry, biomass). Site # Latitude Longitude Biomass (tons/ha) 1 9.160127 79.859973 207.4 2 8.987363 79.617125 212.2 3 8.996870 79.642082 212.3 4 9.121305 79.672340 218.8 5 9.140858 79.692410 235.1 6 9.152628 79.713770 235.9 7 9.143868 79.857983 243.9 8 9.157593 79.750405 252.2 9 9.280008 79.974252 258.8 10 9.322290 79.960888 259.3 11 8.986632 79.637610 288.9

  9. BioSAR Estimated Biomass vs.Ground Truth (total above-ground dry biomass) 320 ±10% of Total 300 280 260 Estimated Biomass, tons/hectare 240 220 200 180 200 210 220 230 240 250 260 270 280 290 Ground Truth Biomass, tons/hectare

  10. 9.20° N Lat. -79.60° E Long. 9.11° N Lat. -80.00 ° E Long. Canal 0 30 60 90 120 150 180 210 240 270 300 330 360 390 420 Above-ground dry biomass (Metric Tons/Hectare) BioSAR-Generated Biomass Mapof the Panama Canal Zone, Panama

  11. DOE Grants Improved processing algorithms Improved data storage and archiving Addition of Laser Radar Addition of external calibration device DOE Refinements - BioSAR 30TM

  12. BioSAR 30TM Installed in Twin Otter Aircraft

  13. BioSAR 30TM Operators Station

  14. BioSAR 30TM Antenna

  15. February 17,18 2005 30 Sites selected – Each Site ~ 100 acres Collaboration with Weyerhaeuser Corp. GPS waypoints for each site computed North-South, East-West Leg for each site All sites flown in one day, repeated next day DOE Mission to North Carolina

  16. Aerial Photograph of Site 19

  17. BioSAR 30TM Flight Lines - Site 19

  18. Data Points and Biomass for Site 19

  19. Video View of Site 19

  20. Observations vs. Ground Truth Site 19 Feb 17 Feb 18 N-S E-W N-S E-W 2003 Ground Truth ~ 160 tons/ha

  21. 250 Meters – 36 transects 5.5 Miles 5.5 Miles 30 Square Mile Survey - 1 Day

  22. Features, Advantages, Benefits

  23. New Company Spin-Off from ZAI Offering commercial BioSAR 30 services $2.00/acre (Minimum $50K) + ferry charges 30 sq. miles/day (~ 19K acres, 7.8K ha) Product will be GIS/GPS Overlays: Biomass/Carbon Brochures and details available Taking orders now www.terresense.com

  24. ZAI: www.zai-inc.com Patrick W. Johnson 301-371-3584 pjohnson@zai-inc.com Terresense: www.terresense.com Marie Sparrow 703-883-0506 msparrow@terresense.com Points of Contact

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