Depth - Sensor Type 258 - 492303

This sensor measures the water depth, level and temperature

Data Definition

For installation_scenario = 1 (Tank)

• _id internal id
• station_id - relates to the Hull University - all Hull University sensors have the same station_id
• lsid - relates to the node that the sensor is attached to - some nodes have multiple sensors
• salinity - electrical conductivity - deciSiemens per meter
• temp - Temperature in Celsius
• depth - Depth of the sensor in meters - datum + height of water
• sensor_ref_level - a selected datum (i.e. the height of the sensor) - units are in meters
• raw_sensor_fluid_level - height of water above probe - units are in meters
• installation_scenario - 1 = Tank, 2 = Ground surface to water surface
• ts - time stamp in unix epoch (see https://en.wikipedia.org/wiki/Unix_time )

For installation_scenario = 2 (Ground surface to water surface):)

• _id internal id
• station_id - relates to the Hull University - all Hull University sensors have the same station_id
• lsid - relates to the node that the sensor is attached to - some nodes have multiple sensors
• salinity - electrical conductivity - deciSiemens per meter
• temp - Temperature in Celsius
• depth - distance of sensor below top of well - height of water - units are in meters
• sensor_ref_level - distance sensor is below ground level (or in this case the top of the "well") - units are in meters
• raw_sensor_fluid_level - height of water above probe - units are in meters
• installation_scenario - 1 = Tank, 2 = Ground surface to water surface
• ts - time stamp in unix epoch (see https://en.wikipedia.org/wiki/Unix_time )