WebThe mathematical separation involves three diffuse attenuation coefficients: one for the downwelling irradiance (K d), one for the upwelling radiance of the water column (K u C), and one for the upwelling radiance from bottom reflection (K u B). Because of the differences in photon origination and path lengths, these three coefficients in ... WebAn experiment was conducted here to compare the accuracy of several target radiance correction methods, namely pre-calibration reference panel (pre-CRP), downwelling light sensor (DLS), and a novel method, real-time reflectance calibration reference panel (real-time CRP), in monitoring crop reflectance under variable weather conditions. ...
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WebNov 6, 2013 · Punctual measurements of downwelling zenith hemispherical radiance (irradiance) were performed with a new apparatus developed following the version of … WebWe have sampled both the downwelling and upwelling radiance distributions at a camp located in the southern Ellsworth Mountains on the broad expanse of Union Glacier (700 m altitude, 79° 46′ S, 82° 52′ W). The measurements (at 320–440 nm wavelength range) were carried out under cloudless conditions by using a sky scanner system, during a … medication flashcards online free
Cloud effects on thermal downwelling sky radiance - SPIE Digital …
WebThis approach relies on synthetic at-sensor radiance data derived from collected radiosondes and a diverse database of measured emissivity spectra sampled at a range of surface temperatures. The network loss function relies on LWIR radiative transfer equations to update model parameters. ... [36] is much smoother than the spectral curve of ... WebApr 16, 2024 · One year (2013) of high spectral resolution measurements of downwelling radiance in the 100–1,400 cm −1 range, taken by the Fourier Transform Spectrometer … WebSep 14, 2016 · The downwelling radiance at both 10 and 20 μm exhibits strong seasonal variability as a result of changes in cloud cover, temperature, and water vapour. Given the 20 µm window’s limited transparency, its ability to allow surface IR radiation to escape to space is found to be highly sensitive to changes in atmospheric water vapour and ... medication financing low income