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Title page for ETD etd-07152018-145153


Type of Document Dissertation
Author Merrick, Trina Leigh Riley
Author's Email Address trina.l.merrick@vanderbilt.edu
URN etd-07152018-145153
Title Remote Sensing of vegetation chlorophyll fluorescence across spatial and temporal scales
Degree PhD
Department Environmental Engineering
Advisory Committee
Advisor Name Title
Ralf Bennartz, PhD Committee Chair
George Hornberger, PhD Committee Member
Guilherme Gualda, PhD Committee Member
James H. Clarke, PhD Committee Member
Maria Luisa S.P. Jorge, PhD Committee Member
Steven Goodbred, PhD Committee Member
Keywords
  • photosynthesis
  • vegetation index
  • solar-induced fluorescence
  • GPP
  • LUE
  • absorbed photosynthetically active radiation
Date of Defense 2018-06-06
Availability unrestricted
Abstract
This research is focused on understanding different aspects of passive remote sensing of vegetation chlorophyll fluorescence. The spatial scales in this dissertation range from plant level to the six biomes of Brazil. Observations were made at handheld to satellite level under actinic illumination and sunlight. The instrumentation platforms were handheld to satellite level. The temporal scales ranged from the seconds to years. The promise of chlorophyll fluorescence, and specifically solar-induced fluorescence, to infer plant functioning status is at the core of these studies. The responsiveness of solar-induced fluorescence to changing environmental conditions is what makes this quantity both desirable to monitor and complicated to interpret. These complexities require exploration of multiple techniques that transcend disciplinary boundaries, thus, this research incorporates numerous approaches and concepts necessary to further our understanding of plant functioning from passive remote sensing observations. The purpose of this dissertation is to exploit fully available spectral instrumentation by developing robust methods of characterizing chlorophyll fluorescence metrics. It is under this regime that I undertook a multi-instrument, interdisciplinary, and wide ranging examination of chlorophyll fluorescence at multiple timescales.
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