Peter Weston

Scientist (Eumetsat Fellow)
Research Department, Earth System Assimilation Section, Coupled Assimilation Group

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Peter Weston is working on the assimilation of microwave sounder radiances. His current research topics include assimilating microwave temperature sounding channels in the presence of cloud and precipitation (all sky assimilation) and accounting for correlated observation errors.

Professional interests: 
  • Microwave radiance assimilation
  • Use of satellite radiances in cloud and precipitation
  • Diagnosis and specification of observation error statistics
  • Monitoring the data quality of active microwave instruments
Career background: 

2016-present: EUMETSAT research fellow at ECMWF working on the assimilation of microwave sounder radiances

2010-2016: Scientist at UK Met Office working on the assimilation of infrared sounder radiances

2005-2009: Studied for an MMath at the University of Oxford


Peer reviewed publications

Geer, A.J., Lonitz, K., Weston, P., Kazumori, M., Okamoto, K., Zhu, Y., Liu, E.H., Collard, A., Bell, W., Migliorini, S., Chambon, P., Fourrié, N., Kim, M.-J., Köpken-Watts, C. and Schraff, C. (2017), All-sky satellite data assimilation at operational weather forecasting centres. Q.J.R. Meteorol. Soc.. doi:10.1002/qj.3202, accepted.

Janjić, T., Bormann, N., Bocquet, M., Carton, J. A., Cohn, S. E., Dance, S. L., Losa, S. N., Nichols, N. K., Potthast, R., Waller, J. A. and Weston, P. (2017), On the representation error in data assimilation. Q.J.R. Meteorol. Soc.. doi:10.1002/qj.3130, in press.

Bennitt, G. V., Johnson, H. R., Weston, P. P., Jones, J. and Pottiaux, E. (2017), An assessment of ground-based GNSS Zenith Total Delay observation errors and their correlations using the Met Office UKV model. Q.J.R. Meteorol. Soc, 143: 2436–2447. doi:10.1002/qj.3097

Eyre, J. R. and Weston, P. P. (2014), The impact of the temporal spacing of observations on analysis errors in an idealised data assimilation system. Q.J.R. Meteorol. Soc., 140: 1441–1452. doi:10.1002/qj.2227

Weston, P. P., Bell, W. and Eyre, J. R. (2014), Accounting for correlated error in the assimilation of high-resolution sounder data. Q.J.R. Meteorol. Soc., 140: 2420–2429. doi:10.1002/qj.2306


Other publications

Weston, P., Bormann, N., Geer, A. and Lawrence, H. (2017), Harmonisation of the usage of microwave sounder data over land, coasts, sea-ice and snow: First year report. EUMETSAT/ECMWF Fellowship Programme Research Report 45, ECMWF, Reading, U.K.

Geer, A., Ahlgrimm, M., Bechtold, P., Bonavita, M., Bormann, N., English, S., Fielding, M., Forbes, R., Hogan, R., Holm, E., Janiskova, M., Lonitz, K., Lopez, P., Matricardi, M., Sandu, I. and Weston, P. (2017), Assimilating observations sensitive to cloud and precipitation. ECMWF Technical Memorandum 815, ECMWF, Reading, U.K.

Bormann, N., Lupu, C., Geer, A., Lawrence, H., Weston, P. and English, S. (2017), Assessment of the forecast impact of surface-sensitive microwave radiances over land and sea-ice. ECMWF Technical Memorandum 804, ECMWF, Reading, U.K.

Eyre, J.R., Weston, P.P. (2013), The impact of the temporal spacing of observations on analysis errors. Forecasting Research Technical Report 573, Met Office, Exeter, U.K.

Weston, P.P. (2011), Progress towards the implementation of correlated observation errors in 4D-VAR. Forecasting Research Technical Report 560, Met Office, Exeter, U.K.


thumbnail photo of Peter Weston
Contact Details:
peter . westonecmwf . int