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Evaluation of the Madden-Julian Oscillation in Fengyun-3B Polar-Orbiting Satellite Reprocessed OLR Data

  • Fengyun Meteorological Satellite Climate Data Records (CDR) Reprocessing: Methods, Products, and Applications
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Abstract

The present study compares the spatial and temporal characteristics of the Madden-Julian Oscillation (MJO) in Fengyun-3B (FY-3B) polar-orbiting satellite reprocessed outgoing longwave radiation (OLR) data and NOAA OLR data during 2011–2020. The spatial distributions of climatological mean and intraseasonal standard deviation of FY-3B OLR during boreal winter (November–April) and boreal summer (May–October) are highly consistent with those of NOAA OLR. The FY-3B and NOAA OLRs display highly consistent features in the wavenumber-frequency spectra, the occurrence frequency of MJO active days, the eastward propagation of MJO along the equator, and the interannual variability of MJO according to diagnoses using the all-season multivariate EOF analysis. These results indicate that the FY-3B OLR produced by the polar-orbiting satellites is of high quality and worthy of global application.

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Acknowledgments

The ERA5 data are available online at https://www.ecmwf.int/en/forecasts/dataset/ecmwf-reanalysis-v5, the NOAA OLR data are available online at https://psl.noaa.gov/data/gridded/data.interp_OLR.html, and the FY-3B OLR data are available online at https://doi.org/10.12185/NSMC.RICHCEOS.FCDR.FY3VIRRReproDaily-OLR.FY3.VIRR.L2.GBAL.POAD.GLL.5000M.HDF.2021.3.V2.

Funding

Supported by the National Key Research and Development Program of China (2018YFB0504900 and 2018YFB0504905).

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Correspondence to Wanchun Zhang.

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Gong, H., Zhang, W., Sun, L. et al. Evaluation of the Madden-Julian Oscillation in Fengyun-3B Polar-Orbiting Satellite Reprocessed OLR Data. J Meteorol Res 36, 931–946 (2022). https://doi.org/10.1007/s13351-022-2090-6

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  • DOI: https://doi.org/10.1007/s13351-022-2090-6

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