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    Sonification

    A postcard from Antarctica

    Some time ago we’ve been lucky enough to receive the postcard below from the Mc Murdo Dry Valleys, in Antarctica (thank you so much Kaelin!). As described in this captivating documentary, this unique place is the playground of many scientists,

    Ben 24 March 202231 March 2022 Exploring data No Comments Read more

    Revealing Hidden Climate Indices

    In a previous post, we illustrated a widely used method called principal component analysis (PCA). This method can be used as an exploratory tool to summarise a dataset made of hundreds or thousands of time series into just a few

    Ben 29 October 202110 January 2022 Exploring data No Comments Read more

    Finding hidden patterns in the data using principal components analysis

    In hydrology, it is frequent to analyse long time series coming from many sites. The figure below shows monthly streamflows at 207 sites in France for the period 1969-2014. Original data have been transformed to make the time series more

    Ben 11 April 20217 June 2021 Exploring data No Comments Read more

    About the logo

    The globXblog logo is a colourful doughnut that mimics an equaliser, referring to the sonification and visualisation part of the blog. In its core, a stormy icon represents the hydrological part of the blog. The equaliser is surrounded by a

    Chloe 25 January 20217 June 2021 Just fun! No Comments Read more

    Hydrology basics, episode 1: streamflow, precipitation and evapotranspiration

    How does water end up flowing in rivers? As schematized below, it is the result of processes that have taken place in the river basin, also known as a catchment and delineated by a red line in the figure. For

    Ben 10 December 20207 June 2021 Hydrology basics 1 Comment Read more

    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. These are known as El Niño episodes. Sometimes the

    Ben 26 August 20207 June 2021 Exploring data No Comments Read more

    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”

    Ben 5 July 20207 June 2021 Techniques No Comments Read more

    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. Let’s consider the Australian reference dataset provided by the Bureau of Meteorology, with daily runoff data

    Chloe 21 June 20207 June 2021 Exploring data No Comments Read more

    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. This figure visualizes the main flood events of 2019 as

    Ben 14 June 20207 June 2021 Techniques No Comments Read more

    A short introduction to 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. These videos illustrate three common sonification techniques we will explore in future posts of this

    Ben 26 April 202024 March 2022 Techniques 1 Comment Read more

    EU funding

    This project has received funding from the European Union’s Horizon 2020 research and innovation programme under the Marie Sklodowska-Curie grant agreement No 835496.

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