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History of modifications
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September | October | November | December | |
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Old erroneous | Zip-file of data and graphics (1981-2010, 1991-2020) | Zip-file of data and graphics (1981-2010, 1991-2020) | ||
New corrected graphics and time-series data | September monthly summary | November monthly summary | December monthly summary | |
Corrected spatial data available in the CDS entry? | yes | yes | yes | yes |
Date of correction | 07/01/2022 | 07/01/2022 | 07/01/2022 | 02/02/2022 |
- Incomplete retrieval of ERA5 during DHS move affecting RH used in the Climate bulletin
The “Essential climate variables for assessment of climate variability from 1979 to present" dataset constitutes the basis for the C3S monthly Climate Bulletin.
In the frame of a major hardware change at ECMWF, and for a limited period, the services usually provided by the Data Handling System, from which this dataset is retrieved, were distributed across different systems. For this, a bespoke retrieval script was developed, within which an error led to the incomplete retrieval of surface air relative humidity data for the month of September 2022. Instead of covering the period 1-30 September, the retrieved files only contained the data for the period 07-30 September. This one-off problem, had an impact on all data and information derived from those, namely the data for September and October 2022. Upon publication of data for November 2022, the problem was identified and the data for the month of September 2022 correctly retrieved. As of mid-December 2022, the published "Essential climate variables for assessment of climate variability from 1979 to present" data have thus been replaced on the CDS for each of the affected months with a new version.
In turn, related maps, time-series and data of the monthly climate bulletin have been accordingly updated and replaced for the affected months in the respective bulletin. The table of the bottom of the page outlines which months have been updated to date.
Table 4: Original erroneous and the new corrected versions of data and graphics. Anchor table4 table4
| September | October |
Old erroneous | ||
New corrected graphics and time-series data | September monthly summary | October monthly summary |
Corrected spatial data available in the CDS entry? | yes | yes |
Date of correction | 22/12/2022 | 22/12/2022 |
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Dee, D. P., Uppala, S. M., Simmons, A. J., Berrisford, P., Poli, P., Kobayashi, S., Andrae, U., Balmaseda, M. A., Balsamo, G., Bauer, P., Bechtold, P., Beljaars, A. C. M., van de Berg, L., Bid-lot, J., Bormann, N., Delsol, C., Dragani, R., Fuentes, M., Geer, A. J., Haimberger, L., Healy, S. B., Hersbach, H., Hólm, E. V., Isaksen, L., Kållberg, P., Köhler, M., Matricardi, M., McNally, A. P., Monge-Sanz, B. M., Morcrette, J.J., Park, B. K., Peubey, C., de Rosnay, P., Tavolato, C., Thépaut, J.-N., and Vitart, F., 2011: The ERA-Interim reanalysis: configuration and performance of the data assimilation system, Q. J. Roy. Meteor. Soc., 137, 553–597, https://doi.org/10.1002/qj.828.
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Philippe Lopez 2013: Experimental 4D-Var Assimilation of SYNOP Rain Gauge Data at ECMWF, https://doi.org/10.1175/MWR-D-12-00024.1
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This document has been produced in the context of the Copernicus Climate Change Service (C3S). The activities leading to these results have been contracted by the European Centre for Medium-Range Weather Forecasts, operator of C3S on behalf of the European Union (Delegation agreementAgreement signed on 11/11/2014 and Contribution Agreement signed on 22/07/2021). All information in this document is provided "as is" and no guarantee or warranty is given that the information is fit for any particular purpose. The users thereof use the information at their sole risk and liability. For the avoidance of all doubt , the European Commission and the European Centre for Medium - Range Weather Forecasts have no liability in respect of this document, which is merely representing the author's view. |
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