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Enabling better global research outcomes in soil, plant & environmental monitoring.

LoRaWAN Wind Monitoring Station

The ATMOS 22 is a rugged, research-grade two-dimensional sonic anemometer built specifically for agricultural, forestry, and environmental research applications. A lower wind speed threshold of 0 m/s makes the ATMOS 22 especially well-suited for measuring wind within plant canopies, where wind speeds are often below the threshold of a cup anemometer. And with a resolution of 0.01 m/s, the ATMOS 22 is capable of recording fine-scale variations in wind speeds within and above plant canopies.

The S-NODE has been designed to support the broad suite of SDI-12 based environmental sensors, with an optional 2 x 32-bit dry-contact counting digital input just for those wishing to add a tipping bucket rain gauge.

Includes a 7W solar panel, mounting and internal 6.5Ah rechargeable lithium-ion battery.

The ATMOS 22 is a rugged, research-grade two-dimensional sonic anemometer built specifically for agricultural, forestry, and environmental research applications.

Accurate at Low Wind Speeds

A lower wind speed threshold of 0 m/s makes the ATMOS 22 especially well-suited for measuring wind within plant canopies, where wind speeds are often below the threshold of a cup anemometer. And with a resolution of 0.01 m/s, the ATMOS 22 is capable of recording fine-scale variations in wind speeds within and above plant canopies.

No Maintenance Required

The ATMOS 22 is designed for long-term, maintenance-free operation. No moving parts means no mechanical wear and no need for oiling or replacing bearings.

Never Needs Calibration

The ATMOS 22 uses ultrasonic sound waves to measure wind velocity and direction. Because this measurement comes from first principles, the ATMOS 22 doesn’t ever need to be calibrated once it leaves the factory.

Low Cost

Most agricultural and environmental researchers use wind as just one variable among many. Occasionally the scientific objectives of a study require multiple simultaneous measurements of wind to capture vertical or horizontal heterogeneity in the environment. A primary design goal of the ATMOS 22 is to provide high accuracy wind speed and direction at a price that opens up research options, including greater spatial coverage.

Customised for Environmental Research

Wind speed and direction are fundamental measurements necessary for a wide range of agricultural, forestry, and micrometeorological applications. The ATMOS 22 was designed to put the accuracy and low maintenance benefits of sonic anemometers in a sensor built specifically for these applications.

The ATMOS 22 is not intended as a replacement for the high-end three dimensional sonic anemometers used by micrometeorologists. It is designed to provide agricultural and environmental researchers a high accuracy, low maintenance solution for measuring horizontal wind speed and direction.

Output

The ATMOS 22 reports wind speed and maximum gust speed in meters per second with a resolution of 0.01 m/s. It also reports wind direction with a resolution of 1 degree.

If the sampling rate is greater than 0.1 Hz, the anemometer reports the speed and direction at the time of sampling. If sampled less frequently, the anemometer samples every 10 seconds, averages the vector components of the wind, and records the maximum gust during the specified sampling period.

WIND SPEED RANGE: 0 to 30 m/s
WIND SPEED RESOLUTION: 0.01 m/s
WIND SPEED ACCURACY: 0.30 m/s or < 3%, whichever is larger
WIND DIRECTION RANGE: 0 to 359 degrees
WIND DIRECTION RESOLUTION: 1 degree
WIND DIRECTION ACCURACY: ±3 degrees
OPERATING TEMPERATURE RANGE: -40 to 50°C
EXCITATION VOLTAGE: 3.6 to 15 VDC
CURRENT: 0.03 mA quiescent, 0.5 mA sampling, < 0.05 mA average
DATA LOGGER COMPATIBILITY (NOT EXCLUSIVE): Meter/Decagon Em50 Series, ProCheck. (SDI-12)
DIAMETER: 100 mm
HEIGHT (WIND SENSOR): 75 mm
HEIGHT (TOTAL W/ MOUNT): 155 mm
MAXIMUM SAMPLING SPEED1: 1 Hz
OUTPUT1: average speed, gust speed, direction, or vector
CONNECTOR TYPES: 3.5 mm (stereo) plug or stripped & tinned lead wires (Pigtail)
CABLE LENGTH: Standard is 5m, though we have custom cable lengths available upon request
1If sampling rate is greater than 0.1 Hz, the anemometer reports the speed and direction at the time of sampling. If sampled less frequently, the anemometer samples every 10 seconds, averages the vector components of the wind, and keeps the maximum gust. When the logger samples, the anemometer reports the average wind speed, direction, and the maximum gust speed.