The 2018 workshop on Bias Correction in Climate Studies

takes place in Santander, Spain from May 14th - May 16th, 2018, http://www.climate-bias-correction.org/

Berlin-Workshop on Bias Correction in Climate Studies

Oct. 4th - Oct. 6th, 2016, Berlin-Dahlem

Climate projections, decadal and seasonal predictions generally exhibit systematic deviations from observations. Removing those biases is typically the first step towards useful climate projections or decadal/seasonal forecasts and thus a prerequisite for subsequent use, e.g. in impact studies for climate services. Challenges are not only posed by highly skewed variables such as precipitation but also by time-dependent biases (drifts) or physical and spatial consistency.

The goal of this workshop was to review the state of the art of current methods and challenges for statistical bias correction for climate projections, decadal and seasonal predictions and the application for various impact studies and climate services. Hence, the workshop aimed to bring together climate modellers, developers of bias correction (BC) methods and users of such methods to cover the whole range of questions raised by biases in climate models.

Topics covered can be related to (non-exhaustive list):

• Development of bias correction methods

• multivariate (spatial or multi-variables) methods

• stochastic vs. deterministic methods

• bias correction and ensemble generation

• Seasonal to decadal

• time and lead time dependent bias (drift) correction

• ensemble calibration

• Applications of bias corrections methods for impact modelling and climate services

• e.g. agronomy, hydrology, ecology, renewable energy, etc.

• Further problems such as

• Identification of biases in GCMs or RCMs

• Impacts of bias correction on trends and variability of climate simulations

All abstracts, slides and posters can be accessed via the conference book Berlin-Workshop on Bias Correction in Climate Studies 2016

Some slides and posters can also be accessed here

Talks:

• J. Grieger, I. Kröner, T. Kruschke, H. W. Rust, U. Ulbrich: Parametric drift correction for decadal hindcasts ondifferent spatial scales, 2016.

• J. Grieger, D. Smith, G. Boer: Recommendations of the Decadal Climate Prediction Project for bias correction of decadal hindcasts, 2016.
• K. A. Kpogo-Nuwoklo, H. W. Rust, U. Ulbrich, C. Vagenas, E. Meredith: Bias correction with CDF-Transform, 2016.
• A. Pasternack, H. W. Rust, M. A. Liniger, J. Bhend, U. Ulbrich: Calibration of decadal ensemble predictions, 2016.
• H. W. Rust: Bias for weather & climate models, 2016.

Posters:

• M. Fischer, H. W. Rust, U. Ulbrich: Bias correction with harmonic functions – Exploiting the smoothness in time, 2016.
• A. Pasternack, H. W. Rust, M. A. Liniger, J. Bhend, U. Ulbrich: Calibrating probabilistic decadal predictions for categories, 2016.
• H. W. Rust, T. Kruschke, A. Dobler, M. Fischer, U. Ulbrich: Discontinuous daily temperatures in the WATCH forcing data sets, 2016.

Local organisers

• Henning Rust
• Nicola Hoffleit
• Igor Kröner

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This workshop is financially supported by:

•  Freie Universität Berlin within the Excellence Initiative of the German Research Foundation

• the "Statistical Regionalization Models Intercomparison and hydrological impacts Project" (StaRMIP) via the French National Research Agency (ANR)