Adjusting line quantum sensing to improve leaf area index measurements and estimations in forests. [PDF]
MethodsX, 2022 Rapid and reliable estimation of leaf area index (LAI), a crucial parameter in process-based models of vegetation cover response, is important in ecological studies. The Beer-Lambert law is widely used to calculate forest LAI, but data collection methods
Battuvshin G, Menzel L.
europepmc +2 more sources
A note on estimating canopy cover from digital cover and hemispherical photography [PDF]
Silva Fennica, 2016 Fast and accurate estimates of canopy cover are central for a wide range of forestry studies. As direct measurements are impractical, indirect optical methods have often been used in forestry to estimate canopy cover. In this paper the accuracy of canopy
Chianucci, Francesco
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Applications of dual-wavelength hemispherical photography in urban climatology and urban forestry
Urban Forestry and Urban Greening, 2021 Abstract Digital hemispherical photography (DHP) is widely used to measure the radiative environment and estimate sky view factors (SVF) in urban areas and leaf area index (LAI) in forests. However, a limitation is the difficulty to distinguish trees from buildings, or leaves from stems and branches.
Janina Konarska +2 more
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THE CONNECTION BETWEEN CANOPY COVER AND WATER QUALITY IN THE COASTAL OF TABANIO VILLAGE OF TANAH LAUT REGENCY, SOUTH KALIMANTAN [PDF]
Russian Journal of Agricultural and Socio-Economic Sciences, 2023 Canopy cover is one approach to measuring canopy density. The area of land is covered by the vertical projection of the plant canopy or tree canopy is known as canopy cover.
Tony F. +4 more
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PENILAIAN KESEHATAN MANGROVE DI DESA JAGO JAGO, KABUPATEN TAPANULI TENGAH, SUMATERA UTARA
Jurnal Teknologi Perikanan dan Kelautan, 2023 Tujuan penelitian ini adalah untuk menganalisis persentase tutupan mangrove di Desa Jago Jago Sumatera Utara. Metode hemispherical photography digunakan untuk menentukan tajuk mangrove.
Cahyani Fitrah Tanjung +2 more
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CALIBRATION OF A LIGHT HEMISPHERICAL RADIANCE FIELD IMAGING SYSTEM [PDF]
ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2022 A light hemispherical radiance field imaging system based on fish-eye camera was developed for the measurement of the surface incident radiance in an urban environment, which is often affected by radiometric heterogeneity problems.
M. Lei +3 more
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Botanical illustration and photography: a southern hemisphere perspective [PDF]
Australian Systematic Botany, 2017 To examine claims that the role of botanical art in systematic botany is diminishing because of advances in photography, this review considers relevant literature and includes a quantitative analysis of trends in modern journals, monographs and floras.
Ellen J. Hickman +2 more
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Optimizing forest canopy structure retrieval from smartphone‐based hemispherical photography
Methods in Ecology and Evolution, 2023 Hemispherical photography (HP) is a long‐standing tool for forest canopy characterization. Currently, there are low‐cost fisheye lenses to convert smartphones into highly portable HP equipment (smartphone‐based HP, hereafter SHP).
Gastón Mauro Díaz
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Estimation of forest structure metrics relevant to hydrologic modelling using coordinate transformation of airborne laser scanning data [PDF]
Hydrology and Earth System Sciences, 2012 An accurate characterisation of the complex and heterogeneous forest architecture is necessary to parameterise physically-based hydrologic models that simulate precipitation interception, energy fluxes and water dynamics.
A. Varhola +3 more
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Testing the Application of Terrestrial Laser Scanning to Measure Forest Canopy Gap Fraction
Remote Sensing, 2013 Terrestrial laser scanners (TLS) have the potential to revolutionise measurement of the three-dimensional structure of vegetation canopies for applications in ecology, hydrology and climate change.
F. Mark Danson +2 more
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