Create variable ndyprwno2
Process Step
Description Compute target variable ‘ndyprwno2’ based on ‘aqiwdno2’, ‘region’and ‘date’. The number of days during the last seven days from date, date included, where ‘aqiwdno2r’ = ‘3’ ‘Poor’ or ‘aqiwdno2r’ = ‘4’ ‘Very poor’ or ‘aqiwdno2r’ = ‘5’ ‘Extremely poor’ becomes the value of the target variable
This step uses a script written in Python3.
Diagram of the Process Step
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# input parameter
parameter_7d6e0e95_572c_40a5_82e4_bc51a2a68c77 [
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label=<<i>Variable date:</i><br/>Date>
tooltip="Input parameter for current process step"
fillcolor="#ffe119"
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parameter_7d6e0e95_572c_40a5_82e4_bc51a2a68c77:e -> Step:w [
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# previous step
step_70b92d2b_cc0a_44a7_9b1b_1e84084f4c50 [
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tooltip="Previous process step:\nUse variables 'DatetimeBegin' and 'DatetimeEnd' to create variable 'date'."
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step_70b92d2b_cc0a_44a7_9b1b_1e84084f4c50:e -> parameter_7d6e0e95_572c_40a5_82e4_bc51a2a68c77:w [
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URL="https://ess-search.nsd.no/en/variable/99d07034-b859-4c28-801e-6accb5e9f9da"
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label=<<i>Variable region:</i><br/>Region>
tooltip="Input parameter for current process step"
fillcolor="#ffe119"
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parameter_87419b24_5963_48e7_8db9_0c6edf44bce6:e -> Step:w [
minlen="2"
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parameter_0cb5b141_7c62_4d67_84a5_9c4a6e3cb8d1 [
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label=<<i>Variable aqiwdno2:</i><br/>Worst air quality index<br/>level NO2, date>
tooltip="Input parameter for current process step"
fillcolor="#ffe119"
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parameter_0cb5b141_7c62_4d67_84a5_9c4a6e3cb8d1:e -> Step:w [
minlen="2"
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# previous step
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URL="../step_5d4a2d9d-54f8-419e-a4b5-4ef2223dceaa.html"
target="_parent"
tooltip="Previous process step:\nCompute target variable 'aqiwdno2' starting from variables 'Concentration' and 'AirPollutant = NO2' for each background station. Compute where 'AirQualityStation' has values for the pollutant. Find 'Concentration' value at the 99th percentile for the pollutant. Create EEA Air Quality Index where NO2: 0 to 40 eq 'Good' represented by value '0'; 40 to 90 eq 'Fair' represented by value '1'; 90 to 120 eq 'Moderate' represented by value '2'; 120 to 230 eq 'Poor' represented by value '3'; 230 to 340 eq 'Very Poor' represented by value '4'; 340 to 1000 eq 'Extremely Poor' represented by value '5'. The worst air quality level measured on a specific day on one of the background stations in the region provides values to the variable."
];
step_5d4a2d9d_54f8_419e_a4b5_4ef2223dceaa:e -> parameter_0cb5b141_7c62_4d67_84a5_9c4a6e3cb8d1:w [
minlen="2"
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# output parameter
parameter_0f2db12e_4c23_48b0_bbb3_fcb38afec775 [
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target="_blank"
label=<<i>Variable ndyprwno2:</i><br/>Number of days with 'poor'<br/>air quality level or worse<br/>on NO2, week before the date>
tooltip="Output parameter for current process step"
fillcolor="#dcbeff"
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Step:e -> parameter_0f2db12e_4c23_48b0_bbb3_fcb38afec775:w [
minlen="2"
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}
Hint
Move the mouse cursor over a parameter to see more information. Click on a parameter or a related step to go to the corresponding page.
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# input parameter
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