Results 201 to 210 of about 3,721 (228)

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
openaire   +1 more source

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
openaire   +1 more source

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
openaire   +1 more source

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
openaire   +1 more source

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
openaire   +1 more source

MODIS thermal emissive bands calibration uncertainty analysis

SPIE Proceedings, 2004
A key instrument for the NASA EOS mission, the Moderate Resolution Imaging Spectroradiometer (MODIS) is currently operating on-board the Terra and Aqua spacecrafts. The MODIS has 16 Thermal Emissive Bands (TEB), with each having 10 detectors, covering the wavelengths from 3.7 to 14.4 mm.
Kwo-Fu Chiang, Xiaoxiong Xiong, Aisheng Wu, William L. Barnes   +3 more
openaire   +1 more source

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
openaire   +2 more sources

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
openaire   +2 more sources

VIIRS thermal emissive bands calibration algorithm and on-orbit performance

Proceedings of SPIE, 2012
F de Luccia, D Moyer, K Chiang
exaly   +2 more sources

Experimental investigation of the angular variation of emissivity in the thermal infrared band

SPIE Proceedings, 1998
Multi-angle algorithms for estimating sea and land surface temperature with ATSR data require a precise knowledge of the angular variation of surface emissivity in the thermal infrared. Nowadays, very few measurements do exist of this variation. In this work an experimental investigation of the angular variation of the infrared emissivity in the ...
Jose A. Sobrino, Juan Cuenca, Mohamed H. El Kharraz, Laura Dempere-Marco   +3 more
openaire   +1 more source