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R/CT-02
Hyperspectral Reflectance of Freshwater Tidal Emergent Macrophytes as a Remote Sensing Tool for Assessing Wetland Nitrogen Status
Principal Investigator:
David R. TilleyStart/End Year:
2004 - 2006Institution:
University of Maryland, College ParkCo-Principal Investigator:
Andrew Baldwin, University of Maryland, College ParkTopic(s):
Description:
(1) Adapt leaf-scale models for relating plant reflectance indices to wetland ammonia concentrations, identified in our previous and on-going research, to field-scale canopy reflectance measurements of freshwater tidal marsh plant communities; (2) Design, build and test a boat-borne platform for rapidly collecting canopy hyperspectral reflectance of marshes, which can be used in the canopy-scale reflectance/ammonia models to quantify marsh nitrogen status, & (3) Demonstrate our technology to state agencies to consider it as a wetland monitoring tool.
Related Publications:
Tilley, DR; Ahmed, M; Son, JH; Badrinarayanan, H. 2007. Hyperspectral reflectance response of freshwater macrophytes to salinity in a brackish subtropical marsh. Journal of Environmental Quality36(3):780 -789. doi:10.2134/jeq2005.0327. UM-SG-RS-2007-10.
Tilley, DR; Ahmed, M; Son, JH; Badrinarayanan, H. 2003. Hyperspectral reflectance of emergent macrophytes as an indicator of water column ammonia in an oligohaline, subtropical marsh. Ecological Engineering21(23):153 -163. doi:10.1016/j.ecoleng.2003.10.004. UM-SG-RS-2003-16.
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Featured Fellow
Leone Yisrael is a cephalopod-loving scuba diver, cook, and loves to try new activities. She conducts genetic analysis and fieldwork at the Smithsonian Environmental Research Center through the Coastal Disease Ecology Lab.
Featured Research Project
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Oyster aquaculture is a rapidly growing industry in Maryland’s Chesapeake waters which stimulates economic activity and may provide a host of ecosystem benefits. A potential concern associated with the intensification of the oyster aquaculture is the local production and accumulation of oyster biodeposits, which can lead to a porewater sulfide accumulation and declining bioturbation, symptoms of declining ecosystem function. Sulfide is naturally removed from the seafloor by the interactions between bioturbating infauna and sulfide oxidizing bacteria.
Chesapeake Quarterly Magazine
A Growing Industry: Advancing Oyster Aquaculture in Maryland
