[1] We develop an approach to estimate and characterize trace gas retrievals in the presence of clouds in high spectral measurements of upwelling radiance in the infrared spectral region (650–2260 cm ). The radiance contribution of clouds is parameterized in terms of a set of frequency-dependent nonscattering optical depths and a cloud height. These cloud parameters are retrieved jointly with s...

Advanced satellite sensors are tasked with improving global-scale measurements of the Earth’s atmosphere, clouds, and surface to enable enhancements in weather prediction, climate monitoring, and environmental change detection. Measurement system validation is crucial to achieving this goal and maximizing research and operational utility of resultant data. Field campaigns employing satellite un...

The objective of this research was to evaluate species discrimination and specific age interactions in managed, homogeneous, even-aged Eucalyptus and Acacia plantations (4–11 years old) in KwaZulu-Natal, South Africa using hyperspectral data. CASI (36 bands; 426–952 nm spectral range; 1 m spatial resolution) radiance data from the spring (October) of 2004 were used to (i) discriminate between E...

Computer games and real-time applications frequently adopt mesh skinning as a deformation technique for virtual characters and articulated objects. Rendering skinned models with global shading effects, such as interreflection and subsurface scattering, using precomputed radiance transfer enables high-quality real-time display of dynamically deformed objects. In this approach, we need to precomp...

In this work, we analyze the thermodynamic properties of graviton and generalized model involving anisotropic Podolsky Lee–Wick terms with Lorentz violation. We build up so-called partition function from accessible states system seeking following functions: spectral radiance, mean energy, Helmholtz free entropy heat capacity. Besides, verify that when temperature rises, radiance $$\chi (\nu )$$...

The National Polar-Orbiting Operational Environmental Satellite System (NPOESS) Airborne Sounder Testbed (NAST) consists of two passive collocated cross-track scanning instruments, an infrared interferometer (NAST-I) and a microwave radiometer (NAST-M), that fly onboard high-altitude aircraft such as the NASA ER-2 at an altitude near 20 km. NAST-I provides relatively high spectral resolution (0...

Spectral analyses from the Atmospheric Emitted Radiance Interferometer/Line-by-Line Radiative Transfer Model (AERI/LBLRTM) Quality Measurement Experiment (QME) have proven critical in the assessment of clear sky radiative transfer modeling capability for general circulation models (GCMs). The QME provides a mechanism for the assessment of the three critical components of the longwave spectral v...

A new retrieval scheme for cloud optical thickness, effective radius, and thermodynamic phase was developed for ground-based measurements of cloud shortwave solar spectral transmittance. Fifteen parameters were derived to quantify spectral variations in shortwave transmittance due to absorption and scattering of liquid water and ice clouds, manifested by shifts in spectral slopes, curvatures, m...

This paper reviews a new spectral approach to color correction which can be used e.g. in medical image analysis applications. The proposed method is based on linear estimation of all spectral components of a color imaging system, consisting of the spectral sensitivity of the sensor, the spectral radiance of the illuminant and the spectral reflectances of the surfaces within the scene. In partic...

A set of hyperspectral image data are made available, intended for use in modeling of imaging systems. The set contains images of faces, landscapes and buildings. The data cover wavelengths from 0.4 to 2.5 micrometers, spanning the visible, NIR and SWIR electromagnetic spectral ranges. The images have been recorded with two HySpex line-scan imaging spectrometers covering the spectral ranges 0.4...