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dc.contributor.authorBostater, Charles R.
dc.contributor.authorRebbman, Jan
dc.contributor.authorHall, Carlton
dc.contributor.authorProvancha, Mark J.
dc.contributor.authorVieglais, David A.
dc.date.accessioned2017-10-06T16:49:29Z
dc.date.available2017-10-06T16:49:29Z
dc.date.issued1995-11-24
dc.identifier.citationBostater, C., Rebbman, J., Hall, C., Provancha, M., & Vieglais, D. (1995). Temporal measurement and analysis of high-resolution spectral signatures of plants and relationships to biophysical characteristics. Paper presented at the Proceedings of SPIE - the International Society for Optical Engineering, , 2585 298-311.en_US
dc.identifier.urihttp://hdl.handle.net/11141/1787
dc.descriptionBarium sulfate, Biophysics, Plants, Spectral signatures, Temporal reflectanceen_US
dc.description.abstractMeasurements of temporal reflectance signatures as a function of growing season for sand live oak (Quercus geminata), myrtle oak (Q. myrtifolia, and saw palmetto (Serenoa repens) were collected during a two year study period. Canopy level spectral reflectance signatures, as a function of 252 channels between 368 and 1115 nm, were collected using near nadir viewing geometry and a consistent sun illumination angle. Leaf level reflectance measurements were made in the laboratory using a halogen light source and an environmental optics chamber with a barium sulfate reflectance coating. Spectral measurements were related to several biophysical measurements utilizing optimal passive ambient correlation spectroscopy (OPACS) technique. Biophysical parameters included percent moisture, water potential (MPa), total chlorophyll, and total Kjeldahl nitrogen. Quantitative data processing techniques were used to determine optimal bands based on the utilization of a second order derivative or inflection estimator. An optical cleanup procedure was then employed that computes the double inflection ratio (DIR) spectra for all possible three band combinations normalized to the previously computed optimal bands. These results demonstrate a unique approach to the analysis of high spectral resolution reflectance signatures for estimation of several biophysical measures of plants at the leaf and canopy level from optimally selected bands or bandwidths.en_US
dc.language.isoen_USen_US
dc.rightsThis published article is made available in accordance with publishers policy. It may be subject to U.S. copyright law.en_US
dc.rights.urihttp://spie.org/publications/journals/guidelines-for-authors#Terms_of_Useen_US
dc.titleTemporal measurement and analysis of high-resolution spectral signatures of plants and relationships to biophysical characteristicsen_US
dc.typeConference Proceedingen_US
dc.identifier.doi10.1117/12.227193


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