http://ocotal.iarc.uaf.edu/index.php?action=history&feed=atom&title=Datapro_Parameter_Options 2026-04-19T18:23:20Z Revision history for this page on the wiki MediaWiki 1.34.2 http://ocotal.iarc.uaf.edu/index.php?title=Datapro_Parameter_Options&diff=3067&oldid=prev 2016-12-15T19:35:02Z

<p>Created page with &quot;===Date / Time Related=== &lt;pre&gt; datey -- designates the year column for array based data loggers dated -- designates the julian day column for array based data loggers dateh -...&quot;</p> <p><b>New page</b></p><div>===Date / Time Related===<br /> &lt;pre&gt;<br /> datey -- designates the year column for array based data loggers<br /> dated -- designates the julian day column for array based data loggers<br /> dateh -- designates the time column for array based data loggers<br /> <br /> tmstmpcol -- Identifies the ISO format date/time found in table based data loggers.<br /> &lt;/pre&gt;<br /> <br /> ===Numerical Functions===<br /> &lt;pre&gt;<br /> num -- assumes the value coming from the logger already has proper units etc and any data checking is of a qc nature.<br /> net -- assumes the value coming from the logger already has proper units etc and any data checking is of a qc nature.<br /> precip -- assumes the value coming from the logger already has proper units etc and any data checking is of a qc nature. (should augment this 12/2016)<br /> therm -- assumes the value is a thermistor resistance with units of kilo-ohms. <br /> coef_1 = Steinhart-Hart A value<br /> coef_2 = Steinhart-Hart B value<br /> coef_3 = Steinhart-Hart C value<br /> coef_4 = Freezing Point Offset (degrees Celsius)<br /> returns a value in degrees Celsius<br /> thermF -- same options as therm but returns degrees Fahrenheit<br /> therm1 -- similar to therm but rather than coefficients being specified in coef_1 - coef_3, a text file with a look up table of resistance vs coefficients is used.<br /> therm2 -- same as therm1 but for a second thermistor type<br /> therm3 -- same as therm1 but for a third thermistor type<br /> poly -- applies an up to 6th order polynomial to the value from the data logger. Use coef_1 - coef_7 to set coefficient values.<br /> rh -- identifies variable as a relative humidity sensor. Additional relative humidity checks are applied in QC. (values over 100%)<br /> swrad -- identifies variable as a shortwave radiometer. Additional checks are applied (night time values below 0 W/m^2)<br /> rt_sensor -- another type of radiation calibration.<br /> coef_1 = divisor value<br /> coef_2 = offset value<br /> coef_3 = multiplier value<br /> equation = self.result = ((self.variable / self.div) + self.offset) / self.mult<br /> sm -- same as poly but then multiplies the result by 100 to convert to percent.<br /> <br /> &lt;/pre&gt;<br /> ===Functions that use two or more data elements in processing===<br /> &lt;pre&gt;<br /> mrctherm -- converts millivolt output to temperature in degrees Celsius for MRC type thermistor strings. <br /> coef_3 = specify the data column with reference voltage here.<br /> netrad -- converts millivolt output for Q7 Rebs Net Radiometer to W/m^2.<br /> coef_1 = positive calibration coefficient<br /> coef_2 = negative calibration coefficient<br /> coef_3 = specify the data column with reference wind speed<br /> &lt;/pre&gt;</div>

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