Results 21 to 30 of about 51,851 (240)
Remote Sensing, 2019 To overcome the environmental changes occurring now and predicted for the future, it is essential that fruit breeders develop cultivars with better physiological performance.
Gustavo A. Lobos +9 more
doaj +1 more source
Proximal hyperspectral analysis in grape leaves for region and variety identification
Ciência Rural, 2023 : Reflectance measurements of plants of the same species can produce sets of data with differences between spectra, due to factors that can be external to the plant, like the environment where the plant grows, and to internal factors, for measurements of
Diniz Carvalho de Arruda +4 more
doaj +1 more source
Multiangle observations of Arctic clouds from FIRE ACE: June 3, 1998, case study [PDF]
, 2001 In May and June 1998 the Airborne Multiangle Imaging Spectroradiometer (AirMISR) participated in the FIRE Arctic Cloud Experiment (ACE). AirMISR is an airborne instrument for obtaining multiangle imagery similar to that of the satellite-borne MISR ...
Ackerman, TP +6 more
core +1 more source
The Use of Colorimeters to Support Remote Sensing Techniques on Asphalt Pavements
Remote Sensing, 2020 Characterization of asphalt pavements, based on ground spectroradiometers, has been studied in the past to determine their spectral response concerning the physical, chemical, and condition properties of the pavement.
Christodoulos Mettas +3 more
doaj +1 more source
Plant canopy shape and the influences on UV exposures to the canopy [PDF]
, 1996 The solar spectra at selected sites over hemispherical, conical and pinnacle plant canopy models has been evaluated with a dosimetric technique. The irradiance at the sites varies by up to a factor of 0.31 compared to the irradiance on a horizontal plane.
Caldwell M. M. +8 more
core +2 more sources
Incorporating a Hyperspectral Direct-Diffuse Pyranometer in an Above-Water Reflectance Algorithm
Remote Sensing, 2022 In situ hyperspectral remote-sensing reflectance (Rrs(λ)) is used to derive water quality products and perform autonomous monitoring of aquatic ecosystems.
Thomas M. Jordan +3 more
doaj +1 more source
Use of consumer-grade cameras to assess wheat N status and grain yield [PDF]
, 2019 Relationships between (a) fractional Intercepted PAR (fIPAR), and (b) aboveground biomass (Biomass) and (c) grain yield at harvest with the Normalized Difference Vegetation Index (NDVI) derived either from a spectroradiometer or a conventional camera at ...
Fernández Murcia, Enric +2 more
core +4 more sources
Sensors, 2015 Field spectroradiometers integrated in automated systems at Eddy Covariance (EC) sites are a powerful tool for monitoring and upscaling vegetation physiology and carbon and water fluxes.
Javier Pacheco-Labrador +1 more
doaj +1 more source
Field calibration for multidirectional spectroradiometers
Measurement Science and Technology, 2022 Abstract A mobile calibration system for a multidirectional spectroradiometer (MUDIS) to transfer the absolute radiometric calibration from the laboratory to the location of the outdoor-measurement (field calibrator) has been developed.
Angelika Niedzwiedz +4 more
openaire +1 more source
Applied Sciences, 2021 A simple index is desirable to assess the effects on both flat-plate and concentrating photovoltaics of natural changes in the solar spectrum. Some studies have suggested that the relationship between the Average Photon Energy (APE) and the shape of ...
Gustavo Nofuentes +4 more
doaj +1 more source