Transforming a distance matrix into a map
The map in the figure below shows the location of 195 hydrologic stations, which can be used to explore the hydrologic regimes of Australian rivers.
El NiñOz
The Pacific Ocean sometimes catches a fever in its Eastern tropical part (off the coasts between Central America and Peru): for extended periods of time, its surface waters are abnormally warm.
Fun with dendrograms
A dendrogram is a way to visualise objects organised in a hierarchy. It looks like a tree where: the leaves represent the objects of the dataset; the branches link similar leaves according to a given criterion.
How Australian rivers can be grouped into 4 main hydrologic regimes
Investigating the hydrologic regime of 195 rivers in Australia revealed three types of flow seasonality. At some stations, the wettest period occurs during one particular season (winter or summer), whereas at others, similar flows are observed all year round.
Sonification techniques: sequencing
Sounds triggered by events The map below shows the main flood events of 2019, their duration and the size of the flood-affected area (for further discussion of this dataset, see the post Sonification techniques: mapping data to pitch and volume).
Exploring the hydrologic regime of 195 rivers in Australia
Plotting hydrologic regimes Most hydrologic studies start by determining the average quantity of water in rivers and how it is distributed throughout the year.
Sonification techniques: mapping data to pitch and volume
Mapping data to visual or auditory properties A common visualization technique is to use the color or size of symbols to represent data. The bubble map below shows an example.
A short introduction to data sonification
What is data sonification? Sonification refers to the transformation of data into sound, using some algorithmic process. Here are three examples worth a thousand words: