remote sensing tide gauge

LOG_aLevel Mobile – Tide Gauge

LOG_aLevel Mobile is an easy to carry, plug and play, stand-alone remote sensing Mobile Tide Gauge. Based on the well-known and proven LOG_aLevel system, this unit is also calibration-free, accurate, durable and very cost-effective. LOG_aLevel Mobile measures reliably and precisely water level and all kinds of water surface dynamics.

It can also work with ultrasound, radar or pressure sensors. LOG_aLevel can be easily extended to include a datalogger, data communication systems and additional hydrological and meteorological system to form a complete monitoring station. Furthermore, multiple LOG_aLevel stations can be interconnected to form a network. Integration in SCADA systems is straightforward.

For a stationary Tide Gauge please see LOG_aLevel.

For Tide Gauges for Offshore Platforms please see LOG_aLevel Long Range.

  • Advantages

    • Compact, Low-Weight, Easy to Carry
    • Cost effective
    • Extremely Robust & reliable
    • Calibration-Free
    • Maximum Accuracy at all times
    • Maintenance-Free (no moving parts, remote sensing)
    • Reliable under Extreme Conditions: Flood, Ice, Storms, Debris, etc.
    • Narrow Ultrasound Beam for Accurate Level even at Wavy Water Surface
    • Simultaneous Wave and Level Measurement
    • Extension With Additional Sensors (Redundancy, Meteorology and Hydrology)
    • Remote Data Transmission, Control and Alerting
    • Easy Integration to Measuring Networks
    • Reduced risk of malfunction in case of flood and ice (no frozen level gauges!)
    • Fast measurements (measurement of steep waves is possible)
    • Remote sensing without influence to water surface

  • Features

    • Continuous speed of sound measurement with Reference sensor REF-300 ensures an always accurate, calibration-free system (applies to systems with ultrasound sensors)
    • Housing: 300x400x200mm or 500x500x200mm stainless steel with lock, seawater resistant IP class up to 67
    • Mounting of Sensors: Seawater resistant pole (stainless steel) with mounting plate
    • LOG_aLevel Windows Software for system set-up, analysis of measuring network, visualization, managing, storing and exporting of data
  • Specifications

    Measuring range: depends on sensor technology (Ultrasound, Radar, Pressure)
    Sample rates: up to 5 Hz
    Resolution: 1 mm
    Accuracy: 1 cm
    Power supply: 12 VDC ( 230/110V AC optional)
    Data output: RS232 or RS 485
    Working temp: -20 °C up to +70 °C
  • Options

    • Ultrasound, Radar and Pressure Sensors (see table below for details)
    • Power autonomy: Backup battery up to 200 Ah, Solar Power, Wind Power
    • Data logger with SD memory card (4GB / 8GB)
    • Data transmission: Radio, GPRS, Satellite, Cloud, AIS, AIS AtoN
    • Integration of any desired Hydrological and Meteorological Sensors (also in data stream, visualization and logging)
    • Example Hydrological sensors: Water temperature, Inductive current meter, ADCP, Surface Current Flow, CTD, Salinity, Conductivity, Dissolved Oxygen, etc.
    • Example Meteorological sensors:  Wind gauge, Air temperature, Humidity, Rain, Ice, Solar Radiation, Barometric Pressure, Cloud Height, Visibility, complete Weather Stations and sensors for Helidecks, etc.
    • Time: High accuracy GPS – date and time (pps, 1ms accuracy)
    • Data Server / Database
    • Website
    • Alerting / Early Warning System
    • Tide Analysis and Prediction (please see TidePrediction Software)
    • Hypack – Export or Data Stream
       Measurement Range:
      Ultrasound Sensor Maximum distance from Sensor to Water: 10 meters (for larger ranges please see LOG_aLevel Long Range)
      Radar Sensor Maximum distance from Sensor to Water: 10 meters (for larger ranges please see LOG_aLevel Long Range)
      Pressure Sensor: Maximum depth: 50 meters
  • Applications

    • Water level and tide monitoring
    • Coastal protection
    • Harbor and Terminal Management
    • Storm Tide, Flood and Tsunami Measuring Networks
    • Hydrology and Environmental Monitoring
    • (Temporary) Level Gauge to Support Dredging, Surveying and Construction Works
    • Spectral Wave Energy Analysis for Optimal Survey Quality
    • Water/Fluids Reservoir Management
    • Wave Monitoring and Analysis
    • Ship Induced Waves
    • Load Determination for Hydraulic Engineering
    • Torrent Monitoring
    • Local Event Alerting e.g. Flood, Tsunami
    • Real-Time Data for Vessels through AIS/AtoN
    • Local Tide Analysis and Prediction System together with Tidepredictor Software
    • Wave Measurements from Jack-Ups and Rigs
    • Server-based Fleet Management Networks incl. Web Portal (e.g.Ferries, Water-Planes, Supply Vessels)
    • Discharge Hydrographs
    • Flood warning
    • Identification of suitable locations for stationary monitoring stations
    • Monitoring of multiple locations with a single Tide Gauge