Results 21 to 30 of about 9,824,091 (293)

Retrieval of Leaf Area Index (LAI) and Soil Water Content (WC) Using Hyperspectral Remote Sensing under Controlled Glass House Conditions for Spring Barley and Sugar Beet [PDF]

, 2010
Leaf area index (LAI) and water content (WC) in the root zone are two major hydro-meteorological parameters that exhibit a dominant control on water, energy and carbon fluxes, and are therefore important for any regional eco-hydrological or ...
Borzuchowski, Jaromir, Karsten Schulz, Schulz, Karsten, Jaromir Borzuchowski, Borzuchowski, Schulz   +5 more
core   +1 more source

Downscaling of MODIS leaf area index using landsat vegetation index [PDF]

Geocarto International, 2020
Several organizations provide satellite Leaf Area Index (LAI) data regularly, at various scales, at high frequency, but at low spatial resolution.
Georgios Ovakoglou, Thomas K. Alexandridis, Jan G.P.W Clevers, Ioannis Z. Gitas   +3 more
openaire   +2 more sources

Influence of canopy development in the vineyard on spray deposition from a tunnel sprayer

Journal of Agricultural Engineering, 2018
Spray deposition from a tunnel, air-assisted sprayer was analysed during the whole season, following canopy development in a vertical-shoot-positioned vineyard.
Gianfranco Pergher, Nicola Zucchiatti
doaj   +1 more source

Leaf area  Index measurements for  Pinus brutia  Ten. Plantations in Northern Iraqi [PDF]

Mesopotamia Journal of Agriculture
The surface area of the leaves of trees that perform photosynthesis is expressed by the leaf area index (LAI) for pine trees with different densities, using direct methods by collecting field data in 2022 from (30) samples, and measurements were taken of
Maan Shekho, Mohammed Al-Allaf, Muzahim Younis   +2 more
doaj   +1 more source

Leaf area index retrieval with ICESat-2 photon counting LiDAR

International Journal of Applied Earth Observations and Geoinformation, 2021
This is the first study to inverse leaf area index (LAI) with photon counting LiDAR (i.e., Ice, Cloud, and Land Elevation Satellite-2/Advanced Topographic Laser Altimeter System, ICESat-2/ATLAS). A new framework composed of three major steps was applied:
Jie Zhang, Jinyan Tian, Xiaojuan Li, Le Wang, Beibei Chen, Huili Gong, Rongguang Ni, Bingfeng Zhou, Cankun Yang   +8 more
doaj   +1 more source

A Simulation Study Using Terrestrial LiDAR Point Cloud Data to Quantify Spectral Variability of a Broad-Leaved Forest Canopy

Sensors, 2018
In this analysis, a method for construction of forest canopy three-dimensional (3D) models from terrestrial LiDAR was used for assessing the influence of structural changes on reflectance for an even-aged forest in Belgium.
Renato Cifuentes, Dimitry Van der Zande, Christian Salas-Eljatib, Jamshid Farifteh, Pol Coppin   +4 more
doaj   +1 more source

Sentinel Image to Estimate Industrial Tomato Leaf Area Index

Brazilian Archives of Biology and Technology, 2023
The Leaf Area Index (LAI) is one of the main physiological parameters of the plant related to transpiration, productivity and rainfall interception. Among the methods to determine the LAI, the use of remote sensing that estimates the LAI through image ...
Mylena Marques Dorneles, Gustavo Henrique Mendes Brito, Ivandro José de Freitas Rocha, Sueli Martins de Freitas Alves   +3 more
doaj   +1 more source

Leaf area index estimation using top-of-canopy airborne RGB images

International Journal of Applied Earth Observations and Geoinformation, 2021
Leaf Area Index (LAI) is one of the most important biophysical properties of a crop, used in detecting long-term water stress, estimating biomass, and identifying crop growth stage.
Rahul Raj, Jeffrey P. Walker, Rohit Pingale, Rohit Nandan, Balaji Naik, Adinarayana Jagarlapudi   +5 more
doaj   +1 more source

Metsa lehepinnaindeksi kaardistamine lennukilidari, satelliidipiltide ja maapealsete mõõtmiste abil Järvselja VALERI testalal / Leaf area index mapping with airborne lidar, satellite images and ground measurements in Järvselja VALERI test site

Metsanduslikud Uurimused, 2011
The aim of this study was to compile the leaf area index (LAI) map of a 3×3 km VALERI test site in Järvselja, Estonia. Canopy transmittance measurements of LAI by LAI-2000 Plant Canopy Analyzers and digital cameras supplied with fisheye converters were ...
Kodar Ave, Lang Mait, Arumäe Tauri, Eenmäe Alo, Pisek Jan, Nilson Tiit   +5 more
doaj   +1 more source

Projections of leaf area index in earth system models [PDF]

Earth System Dynamics, 2016
The area of leaves in the plant canopy, measured as leaf area index (LAI), modulates key land–atmosphere interactions, including the exchange of energy, moisture, carbon dioxide (CO2), and other trace gases and aerosols, and is therefore an essential ...
N. Mahowald, F. Lo, Y. Zheng, L. Harrison, C. Funk, D. Lombardozzi, C. Goodale   +6 more
doaj   +1 more source