codes:calibration
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codes:calibration [2024/02/16 10:07] jlsolano [Langley] |
codes:calibration [2024/04/19 09:48] (current) jlsolano [Temperature Coefficients] |
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| - ''alpha'': Outliers can be removed by giving the alpha parameter a value greater than zero. In this case, after performing the linear regression, all measures whose residuals are greater than the standard deviation of all residuals multiplied by the alpha factor will be removed, and the linear regression will be repeated. This process is repeated iteratively until all values are below this threshold. | - ''alpha'': Outliers can be removed by giving the alpha parameter a value greater than zero. In this case, after performing the linear regression, all measures whose residuals are greater than the standard deviation of all residuals multiplied by the alpha factor will be removed, and the linear regression will be repeated. This process is repeated iteratively until all values are below this threshold. | ||
| - ''step'': optional, if passed uses the data from the JL measurements at the requested mic step. JL measurements are corrected using the linear temperature coefficient and the filter attenuations corresponding to each wavelength, as available in the AOD configuration operative at the beginning of the requested date range (''date'') | - ''step'': optional, if passed uses the data from the JL measurements at the requested mic step. JL measurements are corrected using the linear temperature coefficient and the filter attenuations corresponding to each wavelength, as available in the AOD configuration operative at the beginning of the requested date range (''date'') | ||
| + | - ''time'': optional, if passed, the time evolution of the lamp intensity is considered in the analysis, including in the linear regression a degree 3 dependence on time. | ||
| + | - ''urlconfig'': allows setting the configuration's parameters, overriding the values in Eubrewnet's database. | ||
| * Output: the following fields are included in the output: | * Output: the following fields are included in the output: | ||
| - ''channel'': Brewer measurement channels in the ozone position plus R5 and R6 (the latter are not included in the JL output) | - ''channel'': Brewer measurement channels in the ozone position plus R5 and R6 (the latter are not included in the JL output) | ||
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| - ''sb'': standard error of the slope of the linear regression. | - ''sb'': standard error of the slope of the linear regression. | ||
| - ''r2'': R-squared of the linear regression. | - ''r2'': R-squared of the linear regression. | ||
| + | - ''tmin'': Minimum temperature used in the linear regression. | ||
| + | - ''tmax'': Maximum temperature used in the linear regression. | ||
| + | - If the parameter ''time'' is passed, three more coefficients are returned (the time dependence considered is of degree 3) together with their standard errors: c,sc,d,sd,e,se. | ||
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| - ''enddate'': see [[codes:dbaccess#common_inputs|Enddate in common inputs]] | - ''enddate'': see [[codes:dbaccess#common_inputs|Enddate in common inputs]] | ||
| - ''format'': see [[codes:dbaccess#format|Format]] | - ''format'': see [[codes:dbaccess#format|Format]] | ||
| + | - ''debug'': In the output, individual measurements are returned instead of hourly averages. | ||
| * Output: | * Output: | ||
| - ''gmt'': UTC time. | - ''gmt'': UTC time. | ||
| - | - ''o3_avg'': Mean hourly ozone for brewerid. | + | - ''o3_avg'': Mean hourly ozone L1.5 for brewerid. |
| - | - ''o3_era5'' Total ozone column from ERA5. | + | - ''o3_era5'' Total ozone column from ERA5 for the station at which the brewer was at ''date''. |
| - ''diff'': difference between o3_avg and o3_era5 in Dobson units. | - ''diff'': difference between o3_avg and o3_era5 in Dobson units. | ||
| - ''reldiff'': relative difference between o3_avg and o3_era5 in % | - ''reldiff'': relative difference between o3_avg and o3_era5 in % | ||
codes/calibration.1708078073.txt.gz · Last modified: 2024/02/16 10:07 by jlsolano
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