Results 31 to 40 of about 9,141 (253)

MULTI-SENSOR APPROACH TO LEAF AREA INDEX ESTIMATION USING STATISTICAL MACHINE LEARNING MODELS: A CASE ON MANGROVE FORESTS [PDF]

open access: yesISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2021
Leaf Area Index (LAI) is a quantity that characterizes canopy foliage content. As leaf surfaces are the primary sites of energy, mass exchange, and fundamental production of terrestrial ecosystem, many important processes are directly proportional to LAI.
K. P. Martinez   +4 more
doaj   +1 more source

Computer simulation modeling of Leaf Area Index (LAI) in maize

open access: yesActa Agraria Debreceniensis, 2014
This study presents a PHP-based model capable of calculating maize leaf area index. The model calculates LAI from emergence to 75% silking. The basis of calculation is represented by the daily average temperature values. The usability of the model was tested using three years' temperature and LAI data series from the values obtained by the weather ...
Károly Bakó, László Huzsvai
openaire   +2 more sources

Optimization of Light Interception, Leaf Area and Yield in “WA38”: Comparisons among Training Systems, Rootstocks and Pruning Techniques

open access: yesAgronomy, 2020
As apple orchards have transitioned to high-density plantings, proper training systems are required to manage increased leaf area. Leaf area index (LAI) is defined as the ratio between leaf area to ground area (m2/m2) and can infer orchard health, light ...
Brendon Anthony   +2 more
doaj   +1 more source

Uncertainty Analysis in the Creation of a Fine-Resolution Leaf Area Index (LAI) Reference Map for Validation of Moderate Resolution LAI Products

open access: yesRemote Sensing, 2015
The validation process for a moderate resolution leaf area index (LAI) product (i.e., MODIS) involves the creation of a high spatial resolution LAI reference map (Lai-RM), which when scaled to the moderate LAI resolution (i.e., > 1 km) allows for ...
John S. Iiames   +3 more
doaj   +1 more source

Remote Sensing of Leaf Area Index (LAI) and Other Vegetation Parameters [PDF]

open access: yes, 2019
Monitoring of vegetation structure and functioning is critical to modeling terrestrial ecosystems and energy cycles. In particular, leaf area index (LAI) is an important structural property of vegetation used in many land surface vegetation, climate, and crop production models.
Sanchez, Juanma Lopez   +2 more
openaire   +3 more sources

Retrieval of a Temporal High-Resolution Leaf Area Index (LAI) by Combining MODIS LAI and ASTER Reflectance Data [PDF]

open access: yesRemote Sensing, 2014
This paper aims to retrieve temporal high-resolution LAI derived by fusing MOD15 products (1 km resolution), field-measured LAI and ASTER reflectance (15-m resolution). Though the inversion of a physically based canopy reflectance model using high-resolution satellite data can produce high-resolution LAI products, the obstacle to producing temporal ...
Yonghua Qu, Wenchao Han, Mingguo Ma
openaire   +2 more sources

Using models for estimation of leaf area index in Cucurbita pepo L.

open access: yesJournal of the Saudi Society of Agricultural Sciences, 2019
In order to find plant growth characteristic relationships with leaf area index in Pumpkin (Cucurbita pepo L.), an experiment was conducted based on randomized complete block design with three replications. Three planting dates (Apr.
Mohammadreza Labbafi   +4 more
doaj   +1 more source

Forest, Crop and Grassland Leaf Area Index Estimation Using Remote Sensing: A Review of Current Research Methods, Sensors, Estimation Models and Accomplishments

open access: yesApplied Sciences, 2023
Leaf area index (LAI) is an important parameter in plant ecophysiology; it can be used to quantify foliage directly and as a measure of the photosynthetic active area and, thus, the area subject to transpiration in vegetation.
Nokukhanya Mthembu   +2 more
doaj   +1 more source

Seasonal influence of leaf area index (LAI) on the energy performance of a green facade

open access: yesBuilding and Environment, 2022
The authors at GREiA research group would like to thank the Catalan Government for the quality accreditation given to their research group (2017 SGR 1537). GREiA is a certified agent TECNIO in the category of technology developers from the Government of Catalonia. This work is partially supported by ICREA under the ICREA Academia programme.
Pérez Luque, Gabriel   +3 more
openaire   +1 more source

Characterizing Leaf Area Index (LAI) and Vertical Foliage Profile (VFP) over the United States [PDF]

open access: yesBiogeosciences, 2015
Abstract. Leaf area index (LAI) and vertical foliage profile (VFP) are among the important canopy structural variables. Recent advances in lidar remote sensing technology have demonstrated the capability of accurately mapping LAI and VFP over large areas.
H. Tang   +5 more
openaire   +4 more sources

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