Publication Abstracts

Diner et al. 2008

Diner, D.J., M. Mischna, R.A. Chipman, A. Davis, and B. Cairns, 2008: WindCam and MSPI: Two cloud and aerosol instrument concepts derived from Terra/MISR heritage. In Earth Observing Systems XIII, 10 Aug. 2008, in San Diego, Cal. J.J. Butler and J. Xiong, Eds., Proc. SPIE, vol. 7081, pp. 70810T, doi:10.1117/12.795146.

The Multi-angle Imaging SpectroRadiometer (MISR) has been acquiring global cloud and aerosol data from polar orbit since February 2000. MISR acquires moderately high-resolution imagery at nine view angles from nadir to 70.5°, in four visible/near-infrared spectral bands. Stereoscopic parallax, time lapse among the nine views, and the variation of radiance with angle and wavelength enable retrieval of geometric cloud and aerosol plume heights, height-resolved cloud-tracked winds, and aerosol optical depth and particle property information. Two instrument concepts based upon MISR heritage are in development. The Cloud Motion Vector Camera, or WindCam, is a simplified version comprised of a lightweight, compact, wide-angle camera to acquire multiangle stereo imagery at a single visible wavelength. A constellation of three WindCam instruments in polar Earth orbit would obtain height-resolved cloud-motion winds with daily global coverage, making it a low-cost complement to a spaceborne lidar wind measurement system. The Multiangle SpectroPolarimetric Imager (MSPI) is aimed at aerosol and cloud microphysical properties, and is a candidate for the National Research Council Decadal Survey's Aerosol-Cloud-Ecosystem (ACE) mission. MSPI combines the capabilities of MISR with those of other aerosol sensors, extending the spectral coverage to the ultraviolet and shortwave infrared and incorporating high-accuracy polarimetric imaging. Based on requirements for the nonimaging Aerosol Polarimeter Sensor on NASA's Glory mission, a degree of linear polarization uncertainty of 0.5% is specified within a subset of the MSPI bands. We are developing a polarization imaging approach using photoelastic modulators (PEMs) to accomplish this objective.

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BibTeX Citation

@inproceedings{di09000f,
  author={Diner, D. J. and Mischna, M. and Chipman, R. A. and Davis, A. and Cairns, B.},
  editor={Butler, J. J. and Xiong, J.},
  title={WindCam and MSPI: Two cloud and aerosol instrument concepts derived from Terra/MISR heritage},
  booktitle={Earth Observing Systems XIII, 10 Aug. 2008, in San Diego, Cal.},
  year={2008},
  volume={7081},
  pages={70810T},
  series={Proc. SPIE},
  doi={10.1117/12.795146},
}

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RIS Citation

TY  - CPAPER
ID  - di09000f
AU  - Diner, D. J.
AU  - Mischna, M.
AU  - Chipman, R. A.
AU  - Davis, A.
AU  - Cairns, B.
ED  - Butler, J. J.
ED  - Xiong, J.
PY  - 2008
TI  - WindCam and MSPI: Two cloud and aerosol instrument concepts derived from Terra/MISR heritage
BT  - Earth Observing Systems XIII, 10 Aug. 2008, in San Diego, Cal.
T3  - Proc. SPIE
VL  - 7081
SP  - 70810T
DO  - 10.1117/12.795146
ER  -

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