The LWP-90-DP150 instrument is a stand-alone system for automated weather-station use under nearly all environmental conditions. The total (integrated) amount liquid water in the vertical column above the radiometer is retrieved from the two-channel brightness temperature mesurements. There is only very limited information on water vapor (humidity) due to the lack of an water vapor line frequency.
- Optical resolution: 2.0°nbsp;HPBW at 90 and 150 GHz (same field of view)
- Radiometric resolution: 0.2 K RMS at 1.0 s integration time
- Absolut system stability: < 1.0 K
- Receiver and antenna thermal stabilization: < 0.02 K
- Environmental temperature range for operation: -30 °C to +45 °C
- Automatic rain-detection system (including a dew-blower)
- Integrated PC on-board
- GPS clock
- Additional external meteorological sensors: barometric pressure, humidity, temperature
- Stand alone operation
- Data storage and backup on-board, power-failure safe-guard