Svelte Pollen Sketches

The challange was to visualize a large pollen dataset consisting of many time-stampled pollen counts for plant species divided into tree, weed and grass categories. The temporal resolution could be changed (week, month, year etc.) and a threshold set for medium and high pollen counts, specific to the plant category.

A dual-range slider allows medium and high thresholds to be set and, where the pollen count falls within range the background to the pollen counts is coloured accordingly. A brush-slider allows the user to set the time range and scale (zoom) within the selected dataset.

A calender heatmap shows the pollen counts over time.