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Remote Sens. 2012, 4(7), 1963-1973; doi:10.3390/rs4071963
Article

The Impact of Subscale Inhomogeneity on Oxygen A Band Cloud-Top Pressure Estimates: Using ESA’s MERIS as a Proxy for DSCOVR-EPIC

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Received: 9 May 2012; in revised form: 25 June 2012 / Accepted: 26 June 2012 / Published: 29 June 2012
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Abstract: Medium Spectral Resolution Imaging Spectrometer (MERIS) oxygen A band measurements were used as a proxy for the Earth Polychromatic Imaging Camera (EPIC),to be launched on NASA’s Deep Space Climate Observatory (DSCOVR). The high spatial resolution of MERIS (1 × 1 km2) is exploited to study the effects of subscale spatialheterogeneity of clouds on the cloud-top pressure retrieved at the coarser spatial resolutionof EPIC (10 × 10 km2). In general, for a sub-scale cloud fraction less than 1, a shift of cloud-top pressure toward the middle atmosphere is found, with a low-bias for highclouds and a high-bias for low clouds. In addition, the deviation is found to be a function of surface reflectance. The subscale variability of fully clouded EPIC pixels causes a weak underestimation of cloud-top pressure, when compared to averaged high-resolution retrievals.
Keywords: cloud-top pressure; Oxygen A band; DSCOVR; MERIS; spatial resolution cloud-top pressure; Oxygen A band; DSCOVR; MERIS; spatial resolution
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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MDPI and ACS Style

Lindstrot, R.; Bennartz, R.; Preusker, R.; Fischer, J. The Impact of Subscale Inhomogeneity on Oxygen A Band Cloud-Top Pressure Estimates: Using ESA’s MERIS as a Proxy for DSCOVR-EPIC. Remote Sens. 2012, 4, 1963-1973.

AMA Style

Lindstrot R, Bennartz R, Preusker R, Fischer J. The Impact of Subscale Inhomogeneity on Oxygen A Band Cloud-Top Pressure Estimates: Using ESA’s MERIS as a Proxy for DSCOVR-EPIC. Remote Sensing. 2012; 4(7):1963-1973.

Chicago/Turabian Style

Lindstrot, Rasmus; Bennartz, Ralf; Preusker, Rene; Fischer, Jürgen. 2012. "The Impact of Subscale Inhomogeneity on Oxygen A Band Cloud-Top Pressure Estimates: Using ESA’s MERIS as a Proxy for DSCOVR-EPIC." Remote Sens. 4, no. 7: 1963-1973.


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