The role of unresolved clouds on short-range global horizontal irradiance predictability

The shortwave radiative impacts of unresolved cumulus clouds are investigated using 6-h ensemble simulations performed with the WRF-Solar Model and high-quality observations over the contiguous United States for a 1-yr period. The ensembles use the stochastic kinetic energy backscatter scheme (SKEBS) to account for implicit model uncertainty. Results indicate that parameterizing the radiative effects of both deep and shallow cumulus clouds is necessary to largely reduce (55%) a systematic overprediction of the global horizontal irradiance. Accounting for the model’s effective resolution is necessary to mitigate the underdispersive nature of the ensemble and provide meaningful quantification of the short-range prediction uncertainties.

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Author Jiménez, Pedro A.
Alessandrini, Stefano
Haupt, Sue Ellen
Deng, Aijun
Kosovic, Branko
Lee, Jared A.
Delle Monache, Luca
Publisher UCAR/NCAR - Library
Publication Date 2016-09-01T00:00:00
Digital Object Identifier (DOI) Not Assigned
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Topic Category geoscientificInformation
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Metadata Date 2023-08-18T19:01:05.755752
Metadata Record Identifier edu.ucar.opensky::articles:18759
Metadata Language eng; USA
Suggested Citation Jiménez, Pedro A., Alessandrini, Stefano, Haupt, Sue Ellen, Deng, Aijun, Kosovic, Branko, Lee, Jared A., Delle Monache, Luca. (2016). The role of unresolved clouds on short-range global horizontal irradiance predictability. UCAR/NCAR - Library. http://n2t.net/ark:/85065/d7c24z3p. Accessed 25 June 2025.

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