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Advanced Analytical Methods for Climate Research: Case studies

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The material covered in the lectures will be illustrated using four case studies, involving different weather/climate variables. This page provides a brief introduction to each of the studies. More detail on each is available on separate pages.
Case study 1: Tropical cyclones in the North-West Pacific.
This first case study illustrates the application of GLMs to a very small dataset. The aim here is to use the values of the Niño 3 index to forecast annual tropical cyclone numbers in the North-West Pacific. The dataset consists contains annual cyclone numbers from 1959 to 2000, with associated Niño 3 values.

The data for this case study, and a sample program to analyse them, are available to download. Further details on this study, as well as the data and program (written in the R language), may be found here.

Case study 2: Daily rainfall in Western Ireland.
The second case study deals with daily rainfall modelling, over an area of some 40×50km² in the West of Ireland. This work was motivated by a number of extreme flood events in the 1990s. It illustrates how GLMs may be used to identify systematic changes in the climate of an area. It also shows how changes in extreme event frequencies can be assessed by simulating a GLM.

Further details of this study may be found here.

Case study 3: Monthly temperatures in the United States.
This study illustrates the application of GLMs at a continental scale. It is intended to demonstrate the feasibility of the GLM approach for large datasets. The dataset here consists of around 1,500,000 observations of monthly temperature, obtained from 2,600 weather stations across the USA.

Further details of this study may be found here.

Case study 4: Daily Maximum Windspeed in the Netherlands.
The final study relates to daily windspeed measurements. High-quality observational data are provided, from 9 weather stations in the Netherlands. The dataset is of moderate size and contains some interesting structure. It offers an opportunity for researchers to familiarise themselves with some specialist GLM fitting software. The dataset, together with the definition files required by the software, are available to download.

Further details of this study, including the dataset and model definition files, may be found here.

For case studies 1 and 4, data are provided in order that attendees can experiment with GLM techniques. The necessary software packages are freely available, from sites listed on the links page for the lecture series.
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    Page last updated: 25th April 2001.