Articles | Volume 18, issue 3
https://doi.org/10.5194/tc-18-1207-2024
https://doi.org/10.5194/tc-18-1207-2024
Brief communication
 | 
12 Mar 2024
Brief communication |  | 12 Mar 2024

Brief communication: Significant biases in ERA5 output for the McMurdo Dry Valleys region, Antarctica

Ricardo Garza-Girón and Slawek M. Tulaczyk

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Cited articles

Bromwich, D. H., Otieno, F. O., Hines, K. M., Manning, K. W., and Shilo, E.: Comprehensive evaluation of polar weather research and forecasting model performance in the Antarctic, J. Geophys. Res.-Atmos., 118, 274–292, 2013. 
Costi, J., Arigony-Neto, J., Braun, M., Mavlyudov, B., Barrand, N. E., Da Silva, A. B., Marques, W. C., and Simoes, J. C.: Estimating surface melt and runoff on the Antarctic Peninsula using ERA-Interim reanalysis data, Antarct. Sci., 30, 379–393, 2018. 
Cucchi, M., Weedon, G. P., Amici, A., Bellouin, N., Lange, S., Müller, Schmied, H., Hersbach, H., Cagnazzo, C., and Buontempo, C.: Near surface meteorological variables from 1979 to 2019 derived from bias-corrected reanalysis, version 2.1, Copernicus Climate Change Service (C3S) Climate Data Store (CDS) [data set], https://doi.org/10.24381/cds.20d54e34, 2022. 
Doran, P. T., McKay, C. P., Clow, G. D., Dana, G. L., Fountain, A. G., Nylen, T., and Lyons, W. B.: Valley floor climate observations from the McMurdo Dry Valleys, Antarctica, 1986–2000, J. Geophys. Res.-Atmos., 107, ACL-13, https://doi.org/10.1029/2001JD002045, 2002. 
Hersbach, H., Bell, B., Berrisford, P., Hirahara, S., Horányi, A., Muñoz-Sabater, J., Nicolas, J., Peubey, C., Radu, R., Schepers, D., and Simmons, A.: The ERA5 global reanalysis, Q. J. Roy. Meteor. Soc., 146, 1999–2049, https://doi.org/10.1002/qj.3803, 2020. 
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Short summary
By analyzing temperature time series over more than 20 years, we have found a discrepancy between the 2 m temperature values reported by the ERA5 reanalysis and the automatic weather stations in the McMurdo Dry Valleys, Antarctica.