Overview

High-precision barometers (Paroscientific 6000-16B-IS) are combined with Nishiyama-Bedard Quad Disk pressure probes, measuring pressure (mb) at the surface, nominally 2 m above ground level. Data are sampled at 20 Hz for potential studies of turbulence. The sensors' high accuracy makes them useful for determining horizontal pressure gradients and their relation to wind ramp events, as well as the temporal variability of pressure associated with mountain wakes and waves.

Note different ASCII file formats for Goldendale (z04) and Walla Walla (z09) sites.

Data Details

ASCII Format

• Field 1: DataloggerID
• Field 2: Year
• Field 3: Julian Day
• Field 4: Hour and Min (UTC)
• Field 5: Seconds Decimal (UTC)
• Field 6: GPS Lock Identifier (A = Locked Signal; V=Insufficient Satellite Coverage)
• Field 7: GPS Clock String (UTC)
• Field 8: Pressure (mb)

Example of data file:

101,2016,243,000,0.04,0001A,2016/08/29 23:59:58.150,913.314500 101,2016,243,000,0.09,0001A,2016/08/29 23:59:58.200,913.315652 101,2016,243,000,0.14,0001A,2016/08/29 23:59:58.250,913.313351 101,2016,243,000,0.19,0001A,2016/08/29 23:59:58.300,913.315626 101,2016,243,000,0.24,0001A,2016/08/29 23:59:58.350,913.315255 101,2016,243,000,0.29,0001A,2016/08/29 23:59:58.400,913.315267 101,2016,243,000,0.34,0001A,2016/08/29 23:59:58.450,913.315430 101,2016,243,000,0.39,0001A,2016/08/29 23:59:58.500,913.312698 101,2016,243,000,0.44,0001A,2016/08/29 23:59:58.550,913.315139 101,2016,243,000,0.49,0001A,2016/08/29 23:59:58.600,913.314793 101,2016,243,000,0.54,0001A,2016/08/29 23:59:58.650,913.317083 101,2016,243,000,0.59,0001A,2016/08/29 23:59:58.700,913.316959 101,2016,243,000,0.64,0001A,2016/08/29 23:59:58.750,913.312730 101,2016,243,000,0.69,0001A,2016/08/29 23:59:58.800,913.315043 101,2016,243,000,0.74,0001A,2016/08/29 23:59:58.850,913.318476 101,2016,243,000,0.79,0001A,2016/08/29 23:59:58.900,913.312417 101,2016,243,000,0.84,0001A,2016/08/29 23:59:58.950,913.317606 101,2016,243,000,0.89,0001A,2016/08/29 23:59:59.000,913.316681 101,2016,243,000,0.94,0001A,2016/08/29 23:59:59.050,913.314978 101,2016,243,000,0.99,0001A,2016/08/29 23:59:59.100,913.318996

Goldendale (z04) and Walla Walla (z09) ASCII Format

• Field 1: GPS Clock String (UTC)
• Field 2: Pressure (mb)

Example of data file:

2016/08/29 23:59:58.150,913.314500 2016/08/29 23:59:58.200,913.315652 2016/08/29 23:59:58.250,913.313351 2016/08/29 23:59:58.300,913.315626 2016/08/29 23:59:58.350,913.315255 2016/08/29 23:59:58.400,913.315267 2016/08/29 23:59:58.450,913.315430 2016/08/29 23:59:58.500,913.312698 2016/08/29 23:59:58.550,913.315139 2016/08/29 23:59:58.600,913.314793 2016/08/29 23:59:58.650,913.317083 2016/08/29 23:59:58.700,913.316959 2016/08/29 23:59:58.750,913.312730 2016/08/29 23:59:58.800,913.315043 2016/08/29 23:59:58.850,913.318476 2016/08/29 23:59:58.900,913.312417 2016/08/29 23:59:58.950,913.317606 2016/08/29 23:59:59.000,913.316681 2016/08/29 23:59:59.050,913.314978 2016/08/29 23:59:59.100,913.318996

Data Quality

No special data quality control is needed.

Uncertainty

• 0.0001% Resolution
• ±0.08 hPa Accuracy
• Stability better than 0.1 hPa per year.