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Published byJoseph Campbell Modified over 8 years ago
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U.S. Department of the Interior U.S. Geological Survey Using Advanced Satellite Products to Better Understand I&M Data within the Context of the Larger Ecoregion Kevin James, NPS I&M Heartland Network Jeff Morisette, USGS Fort Collins Science Center w/ Colin Talbert, USGS Fort and Pete Ma, NASA Goddard Space Flight Center
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Background… “Parks are part of larger ecological systems and must be managed in that context” (Fancy, Gross, & Carter, 2008). Work funded through the USGS/NPS National Park Monitoring Project. Starting third year of funding. Primary objective: help park managers use cutting edge moderate- (250m) and high- (30m) resolution remote sensing products to place I&M observations within the context of the larger ecosystem.
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Background… The foundation for this work is existing and freely available remote sensing data products: NASA-funded 250m spatial resolution land surface phenology product for North America Landsat data available from USGS for free. These products represent a significant national investment in ecosystem monitoring.
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Objectives: Characterize phenology across the Southern Plains, Heartland, and Northern Great Plains Networks from 2000 on. Building on the remote sensed vegetation indices and available Network data, identify appropriate sampling periods and locations that maximize information content for vegetation vital signs monitoring. Evaluate the impact of management actions in light of intra- and inter-annual vegetation and climate variability.
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Initial parks: selection criteria Proposal focused on three networks: Southern Plains, Northern Great Plains, and Heartland Network We wanted at least one park per network Fairly large in spatial extent Existing data from either I&M or fire monitoring programs Fairly native grassland
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Theodore Roosevelt NP
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Windcave NP
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Tallgrass Prairie NP
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Chickasaw NRA
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Lake Meredith NRA
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MODIS land surface phenology data
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Modified TIMESAT Parameters Phenology Product User Guide, Tan et al http://accweb.nascom.nasa.gov/project/docs/User_guide_PHN.pdf. 1.Beginning of season 2.End of season 3.Length of season 4.Base value 5.Peak time 6.Peak value 7.Amplitude 8.Left derivative 9.Right derivative 10.Integral over season - absolute 11.Integral over season - scaled 12.Maximum value 13.Minimum value 14.Mean value 15.Root Mean Square Error
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Web-Enabled Landsat Data (WELD) Monthly composites…
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Displaying the imagery
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ArcGIS Explorer application
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Annual variations in species richness
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Annual variation in and out of TAPR
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Annual variations in species richness at TAPR
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Variations in grassland obligates at TAPR
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A (very) preliminary model for bird species richness An ensemble model* using Maxent Boosted Regression Trees Logistic Regression MARS Random Forest * Following Stohlgren TJ, P. Ma, S. Kumar, M. Rocca, J.T. Morisette, C.S. Jarnevich, and N. Benson. 2010. Ensemble habitat mapping of invasive plant species., Risk Analysis, 30(2)224-235.
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Future work Develop a standard operating procedure (SOP) for integrating MODIS Phenology Data into the I&M program. Correlative analysis connecting the I&M data to these remote sensing variables Analysis of comparing phenology metrics inside and outside the park but with the stratification based on land cover type.
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