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Im, Jungho
Intelligent Remote sensing and geospatial Information Science Lab.
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dc.citation.number 4 -
dc.citation.startPage 665 -
dc.citation.title FORESTS -
dc.citation.volume 15 -
dc.contributor.author Lee, Junghee -
dc.contributor.author Im, Jungho -
dc.contributor.author Lim, Joongbin -
dc.contributor.author Kim, Kyungmin -
dc.date.accessioned 2024-05-24T10:35:10Z -
dc.date.available 2024-05-24T10:35:10Z -
dc.date.created 2024-05-23 -
dc.date.issued 2024-04 -
dc.description.abstract This study explores the quantitative relationship between canopy structure and the canopy escape ratio (f(esc)), measured as the ratio of near-infrared reflectance of vegetation (NIRv) to the fraction of absorbed photosynthetically active radiation (fAPAR). We analyzed the correlation between f(esc) and key indicators of canopy structure-specifically, leaf area index (LAI) and clumping index (CI)-utilizing both Sentinel-2 satellite data and in situ observations. Our analysis revealed a moderate correlation between f(esc) and LAI, evidenced by an R-2 value of 0.37 for satellite-derived LAI, which contrasts with the lower correlation (R-2 of 0.15) observed with field-measured LAI. Conversely, the relationship between f(esc) and CI proved to be significantly weaker (R-2 < 0.1), indicating minimal interaction between foliage distribution and light escape at the canopy level. This disparity in correlation strength was further evidenced in time series analysis, which showed little phenological variation in f(esc) compared to LAI. Our findings elucidate the complexities of estimating f(esc) based on the NIRv to fAPAR ratio and underscore the need for advanced methodologies in future research to enhance the accuracy of canopy escape models. -
dc.identifier.bibliographicCitation FORESTS, v.15, no.4, pp.665 -
dc.identifier.doi 10.3390/f15040665 -
dc.identifier.issn 1999-4907 -
dc.identifier.scopusid 2-s2.0-85191506769 -
dc.identifier.uri https://scholarworks.unist.ac.kr/handle/201301/82700 -
dc.identifier.wosid 001211281400001 -
dc.language 영어 -
dc.publisher MDPI -
dc.title Insights into Canopy Escape Ratio from Canopy Structures: Correlations Uncovered through Sentinel-2 and Field Observation -
dc.type Article -
dc.description.isOpenAccess TRUE -
dc.relation.journalWebOfScienceCategory Forestry -
dc.relation.journalResearchArea Forestry -
dc.type.docType Article -
dc.description.journalRegisteredClass scie -
dc.description.journalRegisteredClass scopus -
dc.subject.keywordAuthor NIRv -
dc.subject.keywordAuthor leaf area index -
dc.subject.keywordAuthor clumping index -
dc.subject.keywordAuthor Sentinel-2 -
dc.subject.keywordAuthor field observation -
dc.subject.keywordAuthor canopy escape ratio -
dc.subject.keywordPlus MODEL -

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