Hyperspectral Reflectance of Freshwater Tidal Emergent Macrophytes as a Remote Sensing Tool for Assessing Wetland Nitrogen Status
Principal Investigator:David R. Tilley
Start/End Year:2004 to 2006
Institution:University of Maryland, College Park
Co-Principal investigator:Andrew Baldwin, University of Maryland, College Park
(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.
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 Quality 36(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 Engineering 21(23):153-163. doi:10.1016/j.ecoleng.2003.10.004. UM-SG-RS-2003-16.