نتایج جستجو برای: effective spectral radiance

تعداد نتایج: 842329  

2015
Jules S. Jaffe

The long-term goal of the CoBOP program, of which this project is a part, is to gain a better understanding of the sources, nature, and variability of upwelling radiance in shallow water. This will include both magnitude and spectral characteristics of the radiance. An additional goal is to understand the relationship of coral fluorescence to environmental stress and the possibility for using i...

2000
Sergio Gonzalez Mark D. Fairchild

However, when dealing with hardcopy materials (paper and inks) that contain fluorescent components, the color measurements become questionable. Conventional spectrophotometers measure total radiance factors of fluorescent materials for the light source within the instrument. Such measurements cannot be used to obtain accurate colorimetry for other illuminants or sources. On the other hand using...

2004
Dan Lubin

[1] A Fourier Transform Infrared (FTIR) spectroradiometer was deployed at Palmer Station, Antarctica, from 1 September to 17 November 1991. This instrument is similar to the Atmospheric Emitted Radiance Interferometer (AERI) deployed with the U.S. Department of Energy Atmospheric Radiation Measurement (ARM) program. The instrument measured downwelling zenith radiance in the spectral interval 40...

2005
William J. Blackwell Frederick W. Chen

VOLUME 15, NUMBER 2, 2005 LINCOLN LABORATORY JOURNAL 299 M odern spaceborne atmospheric sounders measure radiance with unprecedented resolution and accuracy in spatial, spectral, and temporal dimensions. For example, the Atmospheric Infrared Sounder (AIRS), operational on the NASA Earth Observing System (EOS) Aqua satellite since 2002, provides a spatial resolution of 15 km, a spectral resoluti...

Journal: :Applied optics 1988
K Danzmann M Günther J Fischer M Kock M Kühne

A high current hollow cathode source has been developed as a radiometric source standard for the extreme VUV. The source is operated at a constant current of 2 A with an aluminum cathode and helium or argon as buffer gas at pressures of ~1 hPa. The radiance of spectral lines in the wavelength range from 13 to 60 nm has been determined by comparison to the calculable spectral radiant power of th...

2004
ROBERT HORVATH JOHN G. BRAITHWAITE

Experimental data were acquired for a study of the effects of variable atmospheric path on the spectral signals obtained by remote sensors in the optical region of the spectrum. Multichannel optical-mechanical scanners which provide calibrated apparent spectral radiance data were flown over agricultural test sites, and passes were made at several different altitudes between 2000 and 10,000 ft. ...

Journal: :Journal of Geophysical Research: Atmospheres 1997

Journal: :Journal of Research of the National Institute of Standards and Technology 1995

2004
D. D. Turner

The Atmospheric Emitted Radiance Interferometer (AERI) measures downwelling infrared radiance from 550-3000 cm (18.2 – 3.3 μm) at high-spectral-resolution (~ 1 cm) (Knuteson et al. 2004). The original temporal sampling strategy (a 3-min average of sky radiance every 8 min) was chosen to optimize the signal-to-noise in the observations for clear sky applications. Clear-sky AERI observations have...

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