NSA/MWRP/C1 - Incorrect surface measurements

Surface measurements are spiking and not comparing well with the co-located METTWR 
measurements.

On 2/13 site operators cleaned a filter in the heater housing resolving the problem.

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• Ambient surface absolute temperature(surfaceTemperature)
• Surface water vapor density at instrument(surfaceWaterVaporDensity)
• Surface pressure at instrument(surfacePressure)
• Ambient surface relative humidity(surfaceRelativeHumidity)