SonTek/YSI Argonaut-XR Technical Manual - HydroScientific West

5.2. PC-ADP Header Extraction: GADPHDR
Using Frequency Pressure Sensors with SonTek/YSI Systems (June 2001)
SonTek/YSI
During data collection, standard ADPs store mean pressure data (converted into dbars) in the
header. PC-ADPs, however, usually profile at much faster rates. As such, the pressure data from
the DRUCK or PAROSFREQ sensor is stored in raw frequency counts as a way to increase system
performance. The extraction program GADPHDR.EXE lets you specify the DRUCK/PAROSFREQ
calibration file so the pressure data can be converted into dbars during the data extraction process.
The command syntax is:
GADPHDR [DataFile] [-P]
where
• DataFile is the name of the PC-ADP data file being extracted (.adp extension implied).
• -P is the name of the pressure sensor calibration file (.drk extension implied).
Example: GADPHDR MYDATA –Pp87654 will extract header data from the MYDATA.ADP data file
using DRUCK/PAROSFREQ calibration data from the p87654.DRK file. Note: If incorrect calibration
data is used, the pressure data will not be correct.
5.3. ADP Wave Data Extraction: GADPWAVE/GADPPRES
To increase system performance when collecting wave or pressure series data, the ADP stores
wave and pressure series data in raw frequency counts (DRUCK/PAROSFREQ sensors only). To extract
the data, use the –P command line option to specify the DRUCK/PAROSFREQ calibration file
so the data can be converted to dbars during the data extraction process. Examples:
GADPWAVE ADPWAVE –Pp87654
will extract wave data from the ADPWAVE.ADP using DRUCK/PAROSFREQ calibration from the
p87654.DRK file.
GADPPRES ADPWAVE –Pp87654
will extract pressure series data from the ADPWAVE.ADP using DRUCK/PAROSFREQ calibration
from the p87654.DRK file.
Note that in both cases that if incorrect calibration data is used, the output data will be invalid.
5.4. Hydra Data Extraction: GADVTS/GADVHDR
To increase system performance, the Hydra stores pressure series data in raw frequency counts
(DRUCK/PAROSFREQ sensors only). To extract pressure series data, use the –D command line option
to specify the DRUCK/PAROSFREQ calibration file so the data can be converted to dbars during
the data extraction process. Examples:
GADVTS HYDRAFILE –Dp87654
will extract time-series data from the HYDRAFILE.ADR using DRUCK/PAROSFREQ calibration from
the p87654.DRK file.
GADVHDR HYDRAFILE –Dp87654
will extract header data from the HYDRAFILE.ADR using DRUCK/PAROSFREQ calibration from the
p87654.DRK file.
Note that in both cases that if incorrect calibration data is used, the output data will be invalid.
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