Spectrodirectional investigation of a geometric-optical canopy reflectance model by laboratory simulation

Simple item page
dc.contributor.authorStanford, Adam Christopher
dc.contributor.authorUniversity of Lethbridge. Faculty of Arts and Science
dc.contributor.supervisorCoburn, Craig A.
dc.contributor.supervisorPeddle, Derek Roland
dc.date.accessioned2017-07-05T18:51:05Z
dc.date.available2017-07-05T18:51:05Z
dc.date.issued2017
dc.degree.levelMastersen_US
dc.description.abstractCanopy reflectance models (CRMs) can accurately estimate vegetation canopy biophysical-structural information such as Leaf Area Index (LAI) inexpensively using satellite imagery. The strict physical basis which geometric-optical CRMs employ to mathematically link canopy bidirectional reflectance and structure allows for the tangible replication of a CRM's geometric abstraction of a canopy in the laboratory, enabling robust CRM validation studies. To this end, the ULGS-2 goniometer was used to obtain multiangle, hyperspectral (Spectrodirectional) measurements of a specially-designed tangible physical model forest, developed based upon the Geometric-Optical Mutual Shadowing (GOMS) CRM, at three different canopy cover densities. GOMS forwardmodelled reflectance values had high levels of agreement with ULGS-2 measurements, with obtained reflectance RMSE values ranging from 0.03% to 0.1%. Canopy structure modelled via GOMS Multiple-Forward-Mode (MFM) inversion had varying levels of success. The methods developed in this thesis can potentially be extended to more complex CRMs through the implementation of 3D printing.en_US
dc.embargoNoen_US
dc.identifier.urihttps://hdl.handle.net/10133/4855
dc.language.isoen_USen_US
dc.proquest.subject0799en_US
dc.proquest.subject0368en_US
dc.proquest.subject0478en_US
dc.proquestyesYesen_US
dc.publisherLethbridge, Alta : University of Lethbridge, Dept. of Geographyen_US
dc.publisher.departmentDepartment of Geographyen_US
dc.publisher.facultyArts and Scienceen_US
dc.relation.ispartofseriesThesis (University of Lethbridge. Faculty of Arts and Science)en_US
dc.subjectcanopy reflectance modelsen_US
dc.subjectgeometric-optical methodsen_US
dc.subjectgoniometeren_US
dc.subjectphysical computational forest simulationsen_US
dc.subjectremote sensingen_US
dc.subjectspectrodirectional data samplingen_US
dc.titleSpectrodirectional investigation of a geometric-optical canopy reflectance model by laboratory simulationen_US
dc.typeThesisen_US
Files
Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
STANFORD_ADAM_MSC_2017.pdf
Size:
5.53 MB
Format:
Adobe Portable Document Format
Description:
Download
License bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
license.txt
Size:
3.25 KB
Format:
Item-specific license agreed upon to submission
Description:
Download
Collections
Arts and Science, Faculty of
University of Lethbridge Theses