Results 31 to 40 of about 4,971,302 (317)
Estimation of chlorophyll content in pepper leaves using spectral transmittance red-edge parameters
International Journal of Agricultural and Biological Engineering, 2022 : The objective of this work was to monitor the growth status of pepper and provide precise guidance on fertilization through non-destructive detection methods for chlorophyll content based on spectral transmittance. The analysis of the narrower red-edge
Shuai Huang +5 more
semanticscholar +1 more source
Multi-Model Estimation of Forest Canopy Closure by Using Red Edge Bands Based on Sentinel-2 Images
Forests, 2021 In remote sensing, red edge bands are important indicators for monitoring vegetation growth. To examine the application potential of red edge bands in forest canopy closure estimation, three types of commonly used models—empirical statistical models ...
Yiying Hua, Xuesheng Zhao
semanticscholar +1 more source
Assessing rice blast disease severity through hyperspectral remote sensing
Journal of Agrometeorology, 2022 Remote sensing is being increasingly used in stress management in different agricultural practices. It is useful for real time analysis for crop stress which is not possible for visual observation alone. Rice blast caused by fungus Pyricularia Oryzae is
NANDITA MANDAL +9 more
doaj +1 more source
MERIS and the red-edge position
International Journal of Applied Earth Observation and Geoinformation, 2001 The Medium Resolution Imaging Spectrometer (MERIS) is a payload component of Envisat-1. MERIS will be operated over land with a standard 15 band setting acquiring images with a 300 m spatial resolution. The red-edge position (REP) is a promising variable for deriving foliar chlorophyll concentration, which plays an important role in ecosystem processes.
Clevers, J.G.P.W. +6 more
openaire +3 more sources
Remote Sensing, 2022 Kelp forests are commonly classified within remote sensing imagery by contrasting the high reflectance in the near-infrared spectral region of kelp canopy floating at the surface with the low reflectance in the same spectral region of water.
B. Timmer +4 more
semanticscholar +1 more source
Journal of Agrometeorology, 2015 Nitrogen stress sensors are based on reflectance measurement controlled by the chlorophyll content. Reflectance of canopy is spectral dependent and more sensitive narrow spectral band can be exploited for reflectance measurement sensors.The experiments ...
M. M. LUNAGARIA +3 more
doaj +1 more source
Remote Sensing, 2021 Canopy chlorophyll content (CCC) is an important indicator for crop-growth monitoring and crop productivity estimation. The hybrid method, involving the PROSAIL radiative transfer model and machine learning algorithms, has been widely applied for crop ...
Quanjun Jiao +7 more
doaj +1 more source
EFFECTS OF GF-6 SATELLITE RED-EDGE BANDS ON PEANUT DROUGHT MONITORING [PDF]
ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2022 Red-edge band is an indicator band to describe the health status of crops. In order to explore the impact of the red-edge bands on the accuracy of agricultural drought monitoring, this study used GF-6 WFV and Landsat8 to calculate the Red-edge Normalized
Y. Zhang +7 more
doaj +1 more source
Electro-absorption of silicene and bilayer graphene quantum dots [PDF]
, 2016 We study numerically the optical properties of low-buckled silicene and AB-stacked bilayer graphene quantum dots subjected to an external electric field, which is normal to their surface.
Abdelsalam, H. +4 more
core +2 more sources
Frontiers in Astronomy and Space Sciences, 2021 In the search for life on other planets, the presence of photosynthetic surface vegetation may be detectable from the colors of light it reflects. On the modern Earth, this spectral reflectance is characterized by a steep increase in reflectance between ...
Owen R. Lehmer +5 more
doaj +1 more source