{"id":{"repo_id":"wvu","oai_identifier":"oai:researchrepository.wvu.edu:etd-1877"},"canonical_url":"https://search.dev.ndltd.org/etd/wvu/oai:researchrepository.wvu.edu:etd-1877","repository":{"repo_id":"wvu","name":"West Virginia University","base_url":"https://researchrepository.wvu.edu/do/oai/"},"display":{"title":"Identifying structural differences in mixed mesophytic and northern hardwood forests on the Monongahela National Forest using remote sensing data","abstract":"This thesis is a study of field data and remotely sensed data to evaluate the structural diversity, texture, spectral and spatial differences between forest stands of three age classes (50--69, 70--89, and >90 years) in the Cheat District on the Monongahela National Forest. The structural diversity was determined with foliage-height profiles for 48 stands ranging from 52 to 148 years old. Structural diversity was highest in the 70--89 and >90 year old stands and lowest in the 50--69 year old stands. The structural characteristics of the 70--89 and >90 year old stands were characterized by greater numbers of larger trees, snags, log accumulations, and canopy gaps, compared to 50--69 year old stands. The 70--89 stands were more similar in structural characteristics to the stands >90 years old than to the 50--69 year stands.;Texture analysis, single band, and color-ratio techniques applied to SPOT Panchromatic and Landsat Thematic Mapper (TM) satellite data resulted in limited success. Wetness, a TM Tasseled Cap transformation, was the spectral variable most correlated with stand age. Although TM texture was found to be related to differences in stand age, TM data is too coarse to detect the spatial variability within the forest canopy reliably. Regression models used to estimate the stand age from DN values of the satellite data were least successful for the SPOT Panchromatic data, possibly due to the late fall season of the data collection.","abstract_html":"This thesis is a study of field data and remotely sensed data to evaluate the structural diversity, texture, spectral and spatial differences between forest stands of three age classes (50--69, 70--89, and >90 years) in the Cheat District on the Monongahela National Forest. The structural diversity was determined with foliage-height profiles for 48 stands ranging from 52 to 148 years old. Structural diversity was highest in the 70--89 and >90 year old stands and lowest in the 50--69 year old stands. The structural characteristics of the 70--89 and >90 year old stands were characterized by greater numbers of larger trees, snags, log accumulations, and canopy gaps, compared to 50--69 year old stands. The 70--89 stands were more similar in structural characteristics to the stands >90 years old than to the 50--69 year stands.;Texture analysis, single band, and color-ratio techniques applied to SPOT Panchromatic and Landsat Thematic Mapper (TM) satellite data resulted in limited success. Wetness, a TM Tasseled Cap transformation, was the spectral variable most correlated with stand age. Although TM texture was found to be related to differences in stand age, TM data is too coarse to detect the spatial variability within the forest canopy reliably. Regression models used to estimate the stand age from DN values of the satellite data were least successful for the SPOT Panchromatic data, possibly due to the late fall season of the data collection.","abstract_has_math":false,"creators":["Bender, John Richard, Jr."],"institution":null,"degree_name":"MA","degree_level":"Thesis","degree_discipline":"Geology and Geography","degree_department":null,"school":null,"contributors":["Timothy A. Warner.","Julie A. Concannon","Thomas DeMeo","Gregory Elmes"],"advisors":[],"committee_chairs":[],"committee_members":[],"year":1999,"date_issued":"1999-08-01T07:00:00Z","date_published":"1999-08-01T07:00:00Z","updated_at":"2026-07-24T06:15:01Z","subjects":["Physical geography","Forestry","Ecology","Remote sensing"],"languages":[],"rights":[],"rights_urls":[],"identifier_entries":[{"key":"dc:identifier","label":"Identifier","values":["https://researchrepository.wvu.edu/etd/874"],"render_values":[{"text":"https://researchrepository.wvu.edu/etd/874","href":"https://researchrepository.wvu.edu/etd/874","code":true}]}]},"links":{"outbound_url":"https://doi.org/10.33915/etd.874","outbound_label":"DOI","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Timothy A. Warner.","Julie A. 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The structural diversity was determined with foliage-height profiles for 48 stands ranging from 52 to 148 years old. Structural diversity was highest in the 70--89 and >90 year old stands and lowest in the 50--69 year old stands. The structural characteristics of the 70--89 and >90 year old stands were characterized by greater numbers of larger trees, snags, log accumulations, and canopy gaps, compared to 50--69 year old stands. The 70--89 stands were more similar in structural characteristics to the stands >90 years old than to the 50--69 year stands.;Texture analysis, single band, and color-ratio techniques applied to SPOT Panchromatic and Landsat Thematic Mapper (TM) satellite data resulted in limited success. Wetness, a TM Tasseled Cap transformation, was the spectral variable most correlated with stand age. Although TM texture was found to be related to differences in stand age, TM data is too coarse to detect the spatial variability within the forest canopy reliably. Regression models used to estimate the stand age from DN values of the satellite data were least successful for the SPOT Panchromatic data, possibly due to the late fall season of the data collection."]},{"key":"dc:title","label":"Title","values":["Identifying structural differences in mixed mesophytic and northern hardwood forests on the Monongahela National Forest using remote sensing data"]}]}],"canonical_facts":{"dc:contributor":["Timothy A. Warner.","Julie A. Concannon","Thomas DeMeo","Gregory Elmes"],"dc:creator":["Bender, John Richard, Jr."],"dc:date.available":["2019-01-17T08:00:00Z"],"dc:description.abstract":["This thesis is a study of field data and remotely sensed data to evaluate the structural diversity, texture, spectral and spatial differences between forest stands of three age classes (50--69, 70--89, and >90 years) in the Cheat District on the Monongahela National Forest. The structural diversity was determined with foliage-height profiles for 48 stands ranging from 52 to 148 years old. Structural diversity was highest in the 70--89 and >90 year old stands and lowest in the 50--69 year old stands. The structural characteristics of the 70--89 and >90 year old stands were characterized by greater numbers of larger trees, snags, log accumulations, and canopy gaps, compared to 50--69 year old stands. The 70--89 stands were more similar in structural characteristics to the stands >90 years old than to the 50--69 year stands.;Texture analysis, single band, and color-ratio techniques applied to SPOT Panchromatic and Landsat Thematic Mapper (TM) satellite data resulted in limited success. Wetness, a TM Tasseled Cap transformation, was the spectral variable most correlated with stand age. Although TM texture was found to be related to differences in stand age, TM data is too coarse to detect the spatial variability within the forest canopy reliably. Regression models used to estimate the stand age from DN values of the satellite data were least successful for the SPOT Panchromatic data, possibly due to the late fall season of the data collection."],"dc:identifier":["https://doi.org/10.33915/etd.874","https://researchrepository.wvu.edu/etd/874"],"dc:subject":["Physical geography","Forestry","Ecology","Remote sensing"],"dc:title":["Identifying structural differences in mixed mesophytic and northern hardwood forests on the Monongahela National Forest using remote sensing data"],"thesis:degree_discipline":["Geology and Geography"],"thesis:degree_level":["Thesis"],"thesis:degree_name":["MA"]},"updated_at":"2026-07-24T06:15:01Z"}