The city of Malmö measures water temperatures in the sea at a number of
bathing areas. The measurements are made with temperature sensors that are
placed close to the surface (optimally at a depth of about 50 cm) some 50
meters from land. The sensors normally report the temperature a number of
times per hour and the average value per hour is what is published in this
dataset.
Incorrect measurement values are uncommon but can occur if sensor operation
is disrupted.
The resources consist of GeoJSON files (Locations YYYY-MM.geojson) that show
the sensors that have been active and their approximate location on a monthly
basis. Corresponding measurement values per month are available in CSV files
(Water Temperatures YYYY-MM.csv).
Measurement value files follow FIWARE's specification for
WaterQualityObserved
.
Attributes Locations
id [sensor identity]
address [sensor location (text)]
geometry [approximate position of the sensor, type: Polygon, CRS: WGS84]
Attributes Water temperatures
type [always "WaterQualityObserved"]
id [sensor identity]
address [sensor location (text)]
dateObserved [date and time (ISO 8601 format) when the measurement value was reported]
temperature [measured temperature in degrees Celsius]
