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High quality statistics, analysis and advice to help Britain make better decisions.

Time Series Analysis Branch

The ONS Time Series Analysis Branch (TSAB) provides expertise in time series analysis, in particular seasonal adjustment.

TSAB is responsible for the quality of all ONS seasonal adjustment and manages a rolling programme of annual seasonal adjustment reviews of statistical outputs across ONS.

TSAB also provides support and training for practitioners and users of seasonal adjustment across the Government Statistical Service and is the main point of contact for any questions or queries regarding seasonal adjustment and time series analysis in official statistics.

Areas of expertise: Seasonal adjustment, forecasting, benchmarking, interpolation, state space modelling.


Weather and Climate: The effect on official statistics

One of the areas that TSAB looks at is the effect of the weather and climate on official statistics.

The Met Office and ONS have jointly produced guidance on this subject.

For more details about why the guidance is needed and who it’s for, please see the Weather and Climate page.