To avoid the problems of defining homogeneous regions, Dr. Lye uses a technique called generalized linear models. With this method, a model is formulated so that the effect of the gauges and the effect of the year are taken into account. The generalized linear model automatically shows the regional differences. When there is no data for a river it is also possible to predict floods with the help of local physical factors such as the size of the river basin, vegetation, and the amount of rainfall. We use all kinds of data from the map.
People measure everything.
However, you cannot just measure things from the map and say that's it. There are things you don't see just by measuring things on the map. Researchers from other provinces and other countries like to use Newfoundland data in their work. But they just take it as numbers and they may have no knowledge of what is going on. Sometimes there may be a river affected by tidal effects or by prevailing storm direction.