Matches in SemOpenAlex for { <https://semopenalex.org/work/W41734706> ?p ?o ?g. }
Showing items 1 to 98 of
98
with 100 items per page.
- W41734706 endingPage "1117" @default.
- W41734706 startingPage "1107" @default.
- W41734706 abstract "Leaf area index (LAI) is an important structural variable for quantitative analysis of the energy and mass exchange characteristics of a terrestrial ecosystem. Previous research on estimating forest LAI by remote sensing is limited to the use of conventional multispectral data. Methods used for LAI estimation involved primarily simple statistical relationships between LAI and vegetation indices (VI) derived from remote sensing data. In this paper, the potentials of an imaging spectrometer, the Compact Airborne Spectrographic Imager (CASI), have been studied for coniferous forest LAI estimation using three types of modeling techniques : univariate regression, multiple regression, and vegetation-index (VI) based LAI estimation. Four study sites have been selected along a forest transect in Oregon. LAI measurements were collected from these study sites. CASI data of two imaging modes - spatial and spectral - had been calibrated and corrected. The relationships between the LAI measurements and the corrected CASI data were then explored. Results indicate that the CASI data acquired with the two imaging modes have similar accuracies for LAI prediction. All three LAI estimation methods resulted in LAIs with reasonably low root-mean-squared errors (RMSEs). The use of the normalized difference vegetation index (NDVI) produced more accurate LAI estimates than did the use of channel ratio for the univariate regression and the VI-based LAI prediction methods. For the univariate regression, a non-linear hyperbola relationship between the LAI and the NDVI was the most appropriate for LAI estimation. In this study, the VI-based LAI estimation method has proven to be simple to use and effective." @default.
- W41734706 created "2016-06-24" @default.
- W41734706 creator A5026199735 @default.
- W41734706 creator A5027921393 @default.
- W41734706 creator A5090364165 @default.
- W41734706 date "1995-10-01" @default.
- W41734706 modified "2023-09-23" @default.
- W41734706 title "Coniferous forest leaf area index estimation along the Oregon transect using compact airborne spectrographic imager data" @default.
- W41734706 hasPublicationYear "1995" @default.
- W41734706 type Work @default.
- W41734706 sameAs 41734706 @default.
- W41734706 citedByCount "41" @default.
- W41734706 countsByYear W417347062012 @default.
- W41734706 countsByYear W417347062013 @default.
- W41734706 countsByYear W417347062014 @default.
- W41734706 countsByYear W417347062015 @default.
- W41734706 countsByYear W417347062016 @default.
- W41734706 crossrefType "journal-article" @default.
- W41734706 hasAuthorship W41734706A5026199735 @default.
- W41734706 hasAuthorship W41734706A5027921393 @default.
- W41734706 hasAuthorship W41734706A5090364165 @default.
- W41734706 hasConcept C104541649 @default.
- W41734706 hasConcept C105795698 @default.
- W41734706 hasConcept C111368507 @default.
- W41734706 hasConcept C121332964 @default.
- W41734706 hasConcept C127313418 @default.
- W41734706 hasConcept C142724271 @default.
- W41734706 hasConcept C1549246 @default.
- W41734706 hasConcept C161584116 @default.
- W41734706 hasConcept C173163844 @default.
- W41734706 hasConcept C183852935 @default.
- W41734706 hasConcept C18903297 @default.
- W41734706 hasConcept C199163554 @default.
- W41734706 hasConcept C205649164 @default.
- W41734706 hasConcept C25989453 @default.
- W41734706 hasConcept C2776133958 @default.
- W41734706 hasConcept C33390570 @default.
- W41734706 hasConcept C33923547 @default.
- W41734706 hasConcept C39432304 @default.
- W41734706 hasConcept C62520636 @default.
- W41734706 hasConcept C62649853 @default.
- W41734706 hasConcept C69661492 @default.
- W41734706 hasConcept C71924100 @default.
- W41734706 hasConcept C86803240 @default.
- W41734706 hasConceptScore W41734706C104541649 @default.
- W41734706 hasConceptScore W41734706C105795698 @default.
- W41734706 hasConceptScore W41734706C111368507 @default.
- W41734706 hasConceptScore W41734706C121332964 @default.
- W41734706 hasConceptScore W41734706C127313418 @default.
- W41734706 hasConceptScore W41734706C142724271 @default.
- W41734706 hasConceptScore W41734706C1549246 @default.
- W41734706 hasConceptScore W41734706C161584116 @default.
- W41734706 hasConceptScore W41734706C173163844 @default.
- W41734706 hasConceptScore W41734706C183852935 @default.
- W41734706 hasConceptScore W41734706C18903297 @default.
- W41734706 hasConceptScore W41734706C199163554 @default.
- W41734706 hasConceptScore W41734706C205649164 @default.
- W41734706 hasConceptScore W41734706C25989453 @default.
- W41734706 hasConceptScore W41734706C2776133958 @default.
- W41734706 hasConceptScore W41734706C33390570 @default.
- W41734706 hasConceptScore W41734706C33923547 @default.
- W41734706 hasConceptScore W41734706C39432304 @default.
- W41734706 hasConceptScore W41734706C62520636 @default.
- W41734706 hasConceptScore W41734706C62649853 @default.
- W41734706 hasConceptScore W41734706C69661492 @default.
- W41734706 hasConceptScore W41734706C71924100 @default.
- W41734706 hasConceptScore W41734706C86803240 @default.
- W41734706 hasIssue "9" @default.
- W41734706 hasLocation W417347061 @default.
- W41734706 hasOpenAccess W41734706 @default.
- W41734706 hasPrimaryLocation W417347061 @default.
- W41734706 hasRelatedWork W1485678107 @default.
- W41734706 hasRelatedWork W1964217023 @default.
- W41734706 hasRelatedWork W1973410094 @default.
- W41734706 hasRelatedWork W1978483399 @default.
- W41734706 hasRelatedWork W1981910470 @default.
- W41734706 hasRelatedWork W1984682798 @default.
- W41734706 hasRelatedWork W1987352360 @default.
- W41734706 hasRelatedWork W1997731494 @default.
- W41734706 hasRelatedWork W1998776407 @default.
- W41734706 hasRelatedWork W2000102737 @default.
- W41734706 hasRelatedWork W2043142216 @default.
- W41734706 hasRelatedWork W2046404820 @default.
- W41734706 hasRelatedWork W2051195850 @default.
- W41734706 hasRelatedWork W2063623478 @default.
- W41734706 hasRelatedWork W2075021380 @default.
- W41734706 hasRelatedWork W2082139814 @default.
- W41734706 hasRelatedWork W2094420085 @default.
- W41734706 hasRelatedWork W2100007397 @default.
- W41734706 hasRelatedWork W2151880387 @default.
- W41734706 hasRelatedWork W2156731172 @default.
- W41734706 hasVolume "61" @default.
- W41734706 isParatext "false" @default.
- W41734706 isRetracted "false" @default.
- W41734706 magId "41734706" @default.
- W41734706 workType "article" @default.