Sensor TIERS

Vertiports differ in the type and number of meteorological sensors they install. To ensure consistent reporting across all configurations, the VMR uses a tiered sensor concept. Each tier defines which parameters are available and which VMR groups can be generated. Higher tiers extend lower ones by adding additional instruments and capabilities. This structure allows every vertiport—from minimal setups to fully equipped sites—to produce a standardized, aviation‑compatible weather report.

Tier 1 – WXT530 (Vaisala)

Available parameters:

• Wind direction, wind speed, gusts

• Temperature

• Humidity (→ dew point can be derived)

• Air pressure (QNH)

• Precipitation intensity (no weather classification)

Tier 2 – WXT530 + PWD22

Additionally available:

• Visibility (VIS) in meters

• Weather codes (Present Weather)

Tier 3 – WXT530 + PWD22 + CL31

Additionally available:

• Cloud bases and cloud cover (FEW/SCT/BKN/OVC)

• Vertical visibility (VV)