WindCam and MSPI

Two cloud and aerosol instrument concepts derived from Terra/MISR heritage

David J. Diner, Michael Michael, Russell A Chipman, Ab Davis, Brian Cairns, Roger Davies, Ralph A. Kahn, Jan Peter Muller, Omar Torres

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Citations (Scopus)

Abstract

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 Polarimetrie imaging. Based on requirements for the non-imaging 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.

Original languageEnglish (US)
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
Volume7081
DOIs
StatePublished - 2008
EventEarth Observing Systems XIII - San Diego, CA, United States
Duration: Aug 11 2008Aug 13 2008

Other

OtherEarth Observing Systems XIII
CountryUnited States
CitySan Diego, CA
Period8/11/088/13/08

Fingerprint

MISR (radiometry)
Aerosol
Imager
Aerosols
Image sensors
aerosols
Imaging
Imaging techniques
Angle
polar orbits
imagery
Orbits
Coverage
Infrared
Polarization
Camera
Orbit
Cameras
cameras
Wavelength

Keywords

  • Aerosols
  • Cloud motion winds
  • Clouds
  • Photoelastic modulators
  • Plumes
  • Polarimetry
  • Stereo imaging

ASJC Scopus subject areas

  • Applied Mathematics
  • Computer Science Applications
  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

Diner, D. J., Michael, M., Chipman, R. A., Davis, A., Cairns, B., Davies, R., ... Torres, O. (2008). WindCam and MSPI: Two cloud and aerosol instrument concepts derived from Terra/MISR heritage. In Proceedings of SPIE - The International Society for Optical Engineering (Vol. 7081). [70810T] https://doi.org/10.1117/12.795146

WindCam and MSPI : Two cloud and aerosol instrument concepts derived from Terra/MISR heritage. / Diner, David J.; Michael, Michael; Chipman, Russell A; Davis, Ab; Cairns, Brian; Davies, Roger; Kahn, Ralph A.; Muller, Jan Peter; Torres, Omar.

Proceedings of SPIE - The International Society for Optical Engineering. Vol. 7081 2008. 70810T.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Diner, DJ, Michael, M, Chipman, RA, Davis, A, Cairns, B, Davies, R, Kahn, RA, Muller, JP & Torres, O 2008, WindCam and MSPI: Two cloud and aerosol instrument concepts derived from Terra/MISR heritage. in Proceedings of SPIE - The International Society for Optical Engineering. vol. 7081, 70810T, Earth Observing Systems XIII, San Diego, CA, United States, 8/11/08. https://doi.org/10.1117/12.795146
Diner DJ, Michael M, Chipman RA, Davis A, Cairns B, Davies R et al. WindCam and MSPI: Two cloud and aerosol instrument concepts derived from Terra/MISR heritage. In Proceedings of SPIE - The International Society for Optical Engineering. Vol. 7081. 2008. 70810T https://doi.org/10.1117/12.795146
Diner, David J. ; Michael, Michael ; Chipman, Russell A ; Davis, Ab ; Cairns, Brian ; Davies, Roger ; Kahn, Ralph A. ; Muller, Jan Peter ; Torres, Omar. / WindCam and MSPI : Two cloud and aerosol instrument concepts derived from Terra/MISR heritage. Proceedings of SPIE - The International Society for Optical Engineering. Vol. 7081 2008.
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abstract = "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 Polarimetrie imaging. Based on requirements for the non-imaging 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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