We apply our intrinsically symmetrical, decelerating relativistic jet model to deep VLA imaging of the inner ±70 arcsec of the giant low-luminosity radio galaxy NGC 315. An optimized model accurately fits the data in both total intensity and linear polarization. We infer that the velocity, emissivity and field structure in NGC 315 are very similar to those of the other low-luminosity sources we...

a mathematical model of a continuous reheating furnace has been developed to identify the design and operating parameters that significantly affect furnace performance. in this study, the furnace is modeled 3 dimensionally and themonte carlomethod is used to find the overall absorption factor. the overall absorption factor is then used to calculate the energy balance for furnace walls, the gas,...

Land surface microwave emissivities are important geophysical parameters for atmospheric, hydrological, and biospheric studies. This study estimates land surface microwave emissivity using an atmospheric microwave radiative transfer model and a combination of the Special Sensor Microwave/Imager (SSM/I) satellite observations and data from the Atmospheric Radiation Measurement (ARM) Program Sout...

Many targets that remote sensing scientists encounter when conducting their research experiments do not lend themselves to laboratory measurement of their surface optical properties. Removal of these targets from the field can change their biotic condition, disturb the surface composition, and change the moisture content of the sample. These parameters, as well as numerous others, have a marked...

The standard model procedure employed for the determination of asteroid photometric properties from single-wavelength infrared flux-density measurements has long been suggested for use with single-wavelength microwave flux-density measurements. Microwave observers, however, have usually assumed that the radio continuum spectra of the asteroids should closely follow a rapidly rotating blackbody ...

The results of a new multispectral infrared retrieval scheme for obtaining fractional cloud cover and 11-/am emissivity are compared with those of the spatial coherence method which obtains fractional cloud cover assuming that the clouds are opaque at infrared wavelengths. Both methods are applied to 4-km NOAA advanced very high resolution radiometer global area coverage data for 250-km-scale r...

Infrared thermography is the preferred choice in many industrial processes for thermal diagnostics, condition monitoring, and non-destructive testing. However, the inherent uncertainty of surface emissivity affects the accuracy of temperature measurement by infrared thermography. In this paper a comprehensive experimental investigation was conducted to assess the uncertainty of infrared thermog...

Using far-infrared emission maps taken by IRAS and Spitzer and a near-infrared extinction map derived from 2MASS data, we have made dust temperature and column density maps of the Perseus molecular cloud. We show that the emission from transiently heated very small grains (VSGs) and the big grain dust emissivity vary as a function of extinction and dust temperature, with higher dust emissivitie...

Radiometers are adept at retrieving near surface ocean wind vectors. The Naval Research Laboratory (NRL) launched the WindSat polarimetric radiometer with five frequency channels to observe the sea surface and test its ability to accurately measure the wind in various weather conditions. This study focuses on its performance in extreme conditions – the high wind and heavy precipitation of a tro...

Detecting and identifying weak gaseous plumes using thermal imaging data is complicated by many factors. These include variability due to atmosphere, ground and plume temperature, and background clutter. This paper presents an analysis of one formulation of the physics-based radiance model, which describes at-sensor observed radiance. The background emissivity and plume/ground temperatures are ...