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Developing Policy-Relevant 'Blue Carbon' Protocols for Monitoring and Verification - Linking soil and satellite data to reduce uncertainty in coastal wetland carbon storage fluxes for national GHG inventories and market incentives
Lisamarie
Windham-Myers, United States Geological Survey, lwindham@usgs.gov
Brian
Bergamaschi, USGS, bbergama@usgs.gov
Judith
Drexler, USGS, jdrexler@usgs.gov
Kristin
Byrd, USGS, kbyrd@usgs.gov
(Presenter)
Matthew
Ferner, SFBay NERR, mferner@sfsu.edu
Patrick
J.
Megonigal, SERC, megonigalp@si.edu
Lisa
Schile, SERC, lmschile@gmail.com
Donald
Weller, SERC, wellerd@si.edu
Kevin
Kroeger, USGS, kkroeger@usgs.gov
Stephen
Crooks, ESA, steve.crooks.bc@gmail.com
James
Morris, Belle Baruch Institute, morris@inlet.geol.sc.edu
Ariana
Sutton-Grier, University of Maryland & NOAA, ariana.sutton-grier@noaa.gov
John
Callaway, University of San Francisco, callaway@usfca.gov
Marc
Simard, Caltech/Jet Propulsion Laboratory, marc.simard@jpl.nasa.gov
Isa
Woo, USGS, iwoo@usgs.gov
John
Takekawa, USGS, john_takekawa@usgs.gov
Rusty
A
Feagin, Texas A&M University, feaginr@tamu.edu
Tiffany
Troxler, Florida International University, troxlert@fiu.edu
Quantifying carbon fluxes in coastal and estuarine ecosystems has policy relevance both for documenting the carbon sink potential of 'blue carbon' habitats, as well as for closing continental scale budgets. We seek to fill a gap in “blue carbon” accounting by providing a national-scale data framework to integrate and extrapolate field measurements that support national GHG inventory requirements, and testing data needs for quantification of stock-based changes in coastal wetland sediments (soil) and vegetation for eventual REDD+ eligibility. Our project will develop a verifiable carbon (C) monitoring protocol appropriate for national policy and market-based interventions. Our approach is to refine Landsat-based land cover change data from NOAA’s Coastal Change Analysis Program, with C-relevant attributes from finer scale NASA-derived spectral and RADAR data, as well as broadly available field-data from partner agencies. Synthesizing previously-collected data for 6 sentinel sites along representative coasts of the U.S., we will refine and validate an IPCC-relevant, temporally-explicit (1996-2010) accounting method for coastal wetland C stocks and annual fluxes. Our approach leverages a recent surge in research on the key processes that regulate soil C accumulation in tidal wetlands, which we propose can be captured at large spatial scales using remotely sensed data and GIS modeling. Net annual C flux into tidal wetland soils is largely a function of vertical accretion due to organic accumulation with sea level rise, or C losses due to oxidation and erosion. The IPCC default value for soil C sequestration in tidal wetlands is 140 g/m2/yr, but rates in US tidal wetlands range from 20-800 g C /m2/yr. The greatest uncertainty in current “blue carbon” inventory-approaches arises from categorical upscaling, or distributing point data through the estuarine landscape. One goal will be to determine the “price of precision” or extent to which finer habitat classifications (hydrology, salinity, sea-level rise) continue to inform C accounting with greater accuracy. This project will provide a fundamental data platform to aid the U.S. in quantifying emissions and removals in response to the IPCC Wetlands Supplement (2014) as requested to support the national report in 2017.
Presentation:
2015_Poster_WindhamMyers_132_69.pdf (2673k)
Presentation Type: Poster
Session: Carbon Monitoring System (CMS) Posters
(Mon 1:30 PM)
Associated Project(s):
- Windham-Myers, Lisamarie: Linking Satellite and Soil Data to Validate Coastal Wetland 'Blue Carbon' Inventories: Upscaled Support for Developing MRV and REDD+ Protocols ...details
Poster Location ID: 132
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