Results 201 to 210 of about 3,314 (231)

MODIS thermal emissive band detector bias

SPIE Proceedings, 2009
Two nearly identical MODIS instruments are currently operating in space: one on the Terra spacecraft launched in December 1999 and another on the Aqua spacecraft launched in May 2002. MODIS has a total of 36 spectral bands, 16 of which are the Thermal Emissive Bands (TEB) with wavelengths covering from 3.7μm to 14.4μm.
B. N. Wenny, X. Geng, X. Xiong
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Thermal emission of InAs induced by band tails

Semiconductor Science and Technology, 1994
The band tail effect on the thermal emission (TE) integrated power and the spectral distribution ( lambda =3-5 mu m) in n-InAs (Nd-Na=1.6*1016 cm-3) has been investigated for the first time. The Urbach parameter Teff has been determined in the temperature range 310-400 K. Some practical uses for the results obtained are also discussed.
V K Malyutenko, V I Chernyakhovsky
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Performance of MODIS thermal emissive bands on-orbit calibration algorithm

2009 IEEE International Geoscience and Remote Sensing Symposium, 2009
MODIS has 16 thermal emissive bands (TEB) covering wavelengths from 3.75 to 14.24μm. They are calibrated on a scan-by-scan basis using a quadratic calibration algorithm and data collected from detector responses to the instrument on-board blackbody (BB) and space view (SV).
Xiaoxiong Xiong, Tiejun Chang
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MODIS thermal emissive bands calibration improvements for Collection 7

Sensors, Systems, and Next-Generation Satellites XXV, 2021
The MODIS thermal emissive bands (TEB) radiometric calibration uses a quadratic function for the instrument response, and the calibration coefficients look-up tables (LUTs) are updated using the response of an on-board blackbody (BB). After more than 21 and 19 years on-orbit, the TEB performances for Terra and Aqua MODIS have been generally stable ...
Tiejun Chang, Ashish Shrestha, Carlos Perez Diaz, Na Chen, Aisheng Wu, Truman Wilson, Yonghong Li, Xiaoxiong Xiong   +7 more
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Detector stability of the Terra MODIS thermal emissive bands

SPIE Proceedings, 2003
The MODerate Resolution Imaging Spectroradiometer (MODIS) is one of the key instruments for the NASA’s Earth Observing System (EOS). The MODIS ProtoFlight Model (PFM) was launched on-board the EOS Terra spacecraft on December 18, 1999. The science data acquisition started on February 24, 2000.
Xiaoxiong Xiong, Kwo-Fu Chiang, Na Chen, S. Xiong, Aisheng Wu, Farida Adimi, William L. Barnes   +6 more
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On-orbit characterization of RVS for MODIS thermal emissive bands

SPIE Proceedings, 2004
Response versus scan angle (RVS) is a key calibration parameter for remote sensing radiometers that make observations using a scanning optical system, such as a doubled sided scan mirror (MODIS and GLI) or a rotating telescope (SeaWiFS and VIIRS). This is because the calibration is typically performed at a fixed viewing angle whereas the Earth scene ...
Xiaoxiong Xiong, Vincent V. Salomonson, Kwo-Fu Chiang, Aisheng Wu, Bruce W. Guenther, William Barnes   +5 more
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New band systems of the YCl molecule in thermal emission

Journal of Molecular Spectroscopy, 1981
Abstract Thermal emission spectrum of YCl has been photographed for the first time in the regions 4645-4065 and 3855-3625 A at a temperature about 2200°C using a vacuum graphite tube furnace. About 140 bands have been observed and analyzed into four new band systems.
R Gopal, L.K Singh, M.M Joshi
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Thermal emissivity of 3D photonic band-gap materials

Summaries of Papers Presented at the Lasers and Electro-Optics. CLEO '02. Technical Diges, 2003
Summary form only given. We will review some of the theory related to the calculation of thermal power spectrum. Then we will discuss how a finite 3D inverted opal PBG structure can be qualitatively studied using a numerical, 3D, matrix-transfer formalism, following the work of Pendry and collaborators.
A. Stimpson, J. Dowlin
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Review of Terra MODIS thermal emissive band L1B radiometric performance

SPIE Proceedings, 2014
The MODerate-resolution Imaging Spectroradiometer (MODIS) on NASA’s Earth Observing System Terra satellite, launched into orbit on 18 December 1999, will have a “first light” 15th anniversary on 24 February 2015. For nearly 15 years the MODIS instrument has provided radiances in all spectral bands. Though some detectors have fallen below SNR thresholds,
Chris Moeller, W. Paul Menzel, Greg Quinn   +2 more
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Crosstalk effect and its mitigation in thermal emissive bands of remote sensors

SPIE Proceedings, 2016
It has been found that there is severe electronic noise in the Terra Moderate Resolution Imaging Spectroradiometer (MODIS) bands 27-30 which corresponds to wavelengths ranging between 6.7 μm to 9.73 μm. The cause for the issue has been identified to be crosstalk, which is significantly amplified since 2010 due to severe degradation in the electronic ...
Junqiang Sun, Sriharsha Madhavan, Menghua Wang   +2 more
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