... practices, as forecasts, data and usersall change. An increasing number of variables can be, and are, forecast, andthe nature of forecasts is also changing. At one end of the range there isincreasing ... station in the district’.As well as an increase in the types of forecasts available, there have alsobeen changes in the amount and nature of data available for verifyingforecasts. The changes ... changes in data include changes of observing stations,changes of location and type of recording instruments at a station, and anincreasing range of remotely sensed data from satellites, radar or automaticrecording...