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Climatronics - Model PSD/SRDT -Weather System
U.S. Environmental Protection Agency guidelines assist operators of potential air pollution sources in complying with the 1977/1990 Clean Air Act Amendments. Operators are required to gather ambient air quality measurements, including meteorological data, at the site of the new air pollution source to estimate its impact on the vicinity and prevent significant deterioration (PSD) of the existing air quality.
The meteorological database should include hourly average wind speed and direction and the standard deviation of wind direction, measured at a standard height of 10 meters. Sites with complex terrain or tall structures often require monitoring at higher levels. The air temperature and the global hemispherical solar radiation are measured at a height of 2 meters above the ground, plus the vertical temperature difference (Delta-T) between 2 and 10 meters above the ground. These measurements will provide the required database for determining the site atmospheric stability category based on the EPA preferred SRDT (Solar Radiation, Delta Temperature) method. The EPA may also require other measurements such as relative humidity (dew point temperature), precipitation or barometric pressure. Minimum equipment specifications are detailed in the sensor section.
All temperature sensors must be protected from the effects of solar radiation, and, therefore, must be properly aspirated. A minimum of 90 percent data recovery and periodic calibrations and inspections, no less than every six months, are required for every meteorological system. Quality assurance of your meteorological data may be achieved by employing a monitoring system that complies with all of the requirements listed above.
- Stand-alone, Fold-over 10-m Tower
- High Accuracy & Reliability Sensors
- Pre-wired Plug & Play Installation
- Industry Standard ASCII Data Format
- Data Retrieval & Communications Options
At 10-Meter Level
- F460 Wind sensor
- F460 Wind Direction sensor
- Temperature Sensor
- Motor Aspirated Shield
- Pre-wired crossarm
At 2-Meter Level
- Temperature sensor
- Relative Humidity sensor
- Motor Aspirated Temperature/Relative Humidity Shield
- Pyranometer with mount and boom
At Ground Level
- Optional Precipitation gage
- Data logger and data logger support software
- Optional UIM (replaces data logger)
- Optional WeatherView software
- 10-Meter tower
- Power supply with battery backup
- Cables, mounting hardware
- Additional options (contact Climatronics)