3 edition of A sphere-scanning radiometer for rapid directional measurements of sky and ground radiance found in the catalog.
A sphere-scanning radiometer for rapid directional measurements of sky and ground radiance
by National Aeronautics and Space Administration, Goddard Space Flight Center in Greenbelt, Md
Written in English
|Statement||Donald W. Deering, Peter Leone.|
|Series||NASA technical memorandum -- 86171.|
|Contributions||Leone, Peter., Goddard Space Flight Center.|
|The Physical Object|
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Steven () required 40 min to make SPHERE SCANNING RADIOMETER 3 the 34 angular observations for measuring the radiance distribution of the sky.
Con- sequently, his measurement technique is limited to the clear and completely cloud- less case, and he obtained no measure- ment of a ground target during that period of by: The Possible direct use of satellite radiance measurements by the Atmospheric Radiation Measurement Program Paperback – January 1, by.
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The Visible Infrared Imager Radiometer Suite (VIIRS) is the next-generation multispectral imaging instrument to fly on US operational, polar-orbiting meteorological satellites.
VIIRS will gather data across 22 spectral bands and be used to create products for a variety of applications including weather forecasting and climate change by: Sky radiance measurements have been performed with both instruments under cloudless and overcast sky.
The spectral actinic irradiance derived from those measurements agrees within 8% for wavelengths higher than nm. The bias between synchronous MUDIS and SCCD sky radiance measurements during cloudless and overcast sky is below 5% for and nm.
• Deployment floats at the start of a satellite mission - Rapid characterization of in flight satellite radiometer. • Provide radiometric measurements across a broader range of solar angles and geographic regions, to assess the satellite dependencies on out-of-band response, BDRF, etc.
A handy rule of thumb is that for most real integrating spheres 02 sphere multiplier is in the range of 10 to Since the integrating sphere is most often used in the steady state condition, a greater number of reflections produces steady state radiance as ρ increases and f Size: KB.
instrument views a Spectralon panel with known bi-directional reflectance distribution function (BRDF) illuminated by the irradiance standard. This radiance-mode measurement is made with both apertures in place.
The measurement uncertainty of the UA VNIR radiometer is % at nm and % at nm (k=l).Cited by: We also analyzed data obtained by the sky-radiometer network on dust transported from the Taklimakan Desert to Japan.
The SSA retrieved from sky-radiometer was between and The SSA measured at Qira is consistent with the SSA inferred from the by: The NIST BRF values assigned to the Spectralon standard were based on absolute bi-directional reflectance measurements for the visible and near infrared (to nm); beyond nm the BRF values were determined from measurements of the 6° directional-hemispherical reflectance, assuming the ratio of the bi-directional to the directional-hemispherical reflectance was constant.
Validation of Land Surface Temperature products derived from the Visible Infrared Imaging Radiometer Suite (VIIRS) using ground-based and heritage satellite measurements. A Sphere-Scanning Radiometer for Rapid Directional Measurements of Sky and Ground Radiance: the PARABOLA Field Instrument (English Edition) eBook: National Aeronautics and Space Administration NASA: : Kindle-ShopFormat: Kindle.
This data set contains nadir SE spectrometer reflectances measurements from the Elizabeth Middleton at NASA Goddard Space Flight Center.
Surface Reflectances Measured by the PARABOLA. This data set contains Don Deerings PARABOLA data; sky and ground radiance values collected using a sphere-scanning radiometer. Computation of diffuse sky irradiance from multidirectional radiance measurements. NASA Technical Reports Server (NTRS) Ahmad, Suraiya P.; Middleton, Elizabeth M.; Deering, Donald.
SE reflectance factors and radiances measured from a helicopter sky and ground radiance values collected using a sphere-scanning radiometer. This data has been averaged to give equal intervals of viewing angles. Calibration and data book: Multispectral 8-channel radiometer.
Barnes Engineering Company. Stamford, CT. Watchers of the Ancient Skies. ERIC Educational Resources Information Center. Sherman, Ben. Describes Lakota belief systems connected with the stars and how those beli. Multi-angular observation of land surface thermal radiation is considered to be a promising method of performing the angular normalization of land surface temperature (LST) retrieved from remote sensing data.
This paper focuses on an investigation of the minimum requirements of viewing angles to perform such normalizations on LST. The normally kernel-driven bi-directional. Fundamentals of Polarimetric Remote Sensing (SPIE Tutorial Text Vol.
TT81) and traditional means of measuring BRDF is to use an illumination source of small angular extent and a corresponding radiometer to measure the scattered radiance. Several means of acquiring the necessary source and detector angular sampling are invoked by using a.
The dual-view field goniometer system FIGOS is currently the only instrument which is capable of measuring the reflected and the incoming diffuse radiation at the same high angular and at high spectral resolution from nm to 2, nm.
It showed a stable and reliable performance in extensive field campaigns. Full text of "Linkages Between Global Vegetation and Climate: An Analysis Based on NOAA Advanced Very High Resolution Radiometer Data" See other formats. Libro que contiene elementos y conocimiento de fundamentos de óptica y sobre el diseño de sistemas ópticos.
For surface radiance measurements made from space, aircraft or on the ground, under ambient sky conditions, the incident radiance cone is of hemispherical extent (ω = 2π [sr]).
Deering, D. W., & Leone, P. (). A sphere-scanning radiometer for rapid directional measurements of sky and ground radiance.
Remote Sensing of Environment, Post-Launch Calibration of Satellite Sensors Edited by The technique could be applied equally for in-situ measurements with the filter radiometer being used directly to view the ground target. The technique is not limited to the UV/VIS/NIR region and also has many advantages for the TIR, allowing spectral radiances of large aperture.Categories.
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