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CARMA workshop Vancouver, Nov. 28-30, 2006

Wenjun Chen, Ian Olthof, Yu Zhang, Sylvain Leblanc, Ridha Touzi, Junhua Li, Costas Armenakis, Isabel Cyr (Climate Change Program - ESS/NRCan). Assessing the impacts of climate change on caribou habitats in North America using remote sensing data. CARMA workshop Vancouver, Nov. 28-30, 2006.

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CARMA workshop Vancouver, Nov. 28-30, 2006

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  1. Wenjun Chen, Ian Olthof, Yu Zhang, Sylvain Leblanc, Ridha Touzi, Junhua Li, Costas Armenakis, Isabel Cyr (Climate Change Program - ESS/NRCan) Assessing the impacts of climate change on caribou habitats in North America using remote sensing data CARMA workshop Vancouver, Nov. 28-30, 2006 Contact: wenjun.chen@nrcan.gc.ca

  2. Approach flowchart Climate & land use scenarios Optimal caribou harvest rate Ecosystem model Caribou herd size Foliage : stem ratio; Foliage turnover rate; Photosynthetic capacity Caribou carrying capacity of the habitat Caribou food production in the habitat Vegetation species cover % Ecotrophic Efficiency; Annual consumption of summer & winter diets by an “average” caribou; Lichen damage by caribou trampling; Consumption by other wildlife species Leaf Aare Index; Biomass; Green-up date “Food Availability” Field measurement + remote sensing + modeling integration

  3. Land Cover map: Porcupine caribou herd range

  4. Conifer Bare Water Shrub 0% Grass 100% Land Cover % maps

  5. LUC detection example: Ekati diamond mine 2000, rgb=4,5,3 1990, rgb=4,5,3 Change map Ikonos image

  6. extent of calving Alaska Yukon N.W.T Green-up rate (May 1–June 21, 1985) annual range Slow Quick 1-km AVHRR Data available: AVHRR since 1979, VGT since 1998

  7. Aboveground biomass map Field measurements Porcupine caribou herd range

  8. Changes in permafrost active-layer thickness from the 1850s to the 2090s to the 1990s CSIROM Changes in active layer thickness since the 1850s 50 -50 >50 (cm) 0 Perm. disappeared Glacier Perm. reappeared NCAR

  9. Potential response to climate change

  10. Commitment • Our team is committed to revise and implement work plan according to CARMA partners’ needs, so that our works will be supportive and complementary to CARMA partners • ESS-NRCan, through the Climate Change Program, is committed to provide necessary A-base funding (salary and O&M) for this work over the next 3 years • Our team has the full support of ESS-NRCan, through the Climate Change Program, to become a CARMA partner and to fulfill all related responsibilities of a CARMA partner

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