Create variable aqiw2do3
Process Step
Description Compute target variable ‘aqiw2do3’ based on ‘aqiwdo3’, ‘region’ and ‘date’. The worst value for the pollutant across a date and the date before becomes the value of the target variable
This step uses a script written in Python3.
Diagram of the Process Step
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Step [
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tooltip=" "
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# input parameter
parameter_7d6e0e95_572c_40a5_82e4_bc51a2a68c77 [
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style="filled"
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fontcolor="blue"
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URL="https://ess-search.nsd.no/en/variable/c9ae5e2b-376b-436d-abd8-f86879f8dc45"
target="_blank"
label=<<i>Variable date:</i><br/>Date>
tooltip="Input parameter for current process step"
fillcolor="#ffe119"
];
parameter_7d6e0e95_572c_40a5_82e4_bc51a2a68c77:e -> Step:w [
minlen="2"
];
# previous step
step_70b92d2b_cc0a_44a7_9b1b_1e84084f4c50 [
shape="rect"
style="filled, rounded"
width="2"
height="0.075"
fontcolor="white"
fillcolor="#4363d8"
fontsize="10pt"
label="Create variable date"
URL="../step_70b92d2b-cc0a-44a7-9b1b-1e84084f4c50.html"
target="_parent"
tooltip="Previous process step:\nUse variables 'DatetimeBegin' and 'DatetimeEnd' to create variable 'date'."
];
step_70b92d2b_cc0a_44a7_9b1b_1e84084f4c50:e -> parameter_7d6e0e95_572c_40a5_82e4_bc51a2a68c77:w [
minlen="2"
];
parameter_87419b24_5963_48e7_8db9_0c6edf44bce6 [
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height="0.1"
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fontsize="10pt"
URL="https://ess-search.nsd.no/en/variable/99d07034-b859-4c28-801e-6accb5e9f9da"
target="_blank"
label=<<i>Variable region:</i><br/>Region>
tooltip="Input parameter for current process step"
fillcolor="#ffe119"
];
parameter_87419b24_5963_48e7_8db9_0c6edf44bce6:e -> Step:w [
minlen="2"
];
parameter_b5ee4a8f_84ea_4b17_8e3a_0f7146cc6f6a [
shape="rect"
style="filled"
width="2"
height="0.1"
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URL="https://ess-search.nsd.no/en/variable/56904641-4c6d-48c4-be32-272f166689a3"
target="_blank"
label=<<i>Variable aqiwdo3:</i><br/>Worst air quality index<br/>level O3, date>
tooltip="Input parameter for current process step"
fillcolor="#ffe119"
];
parameter_b5ee4a8f_84ea_4b17_8e3a_0f7146cc6f6a:e -> Step:w [
minlen="2"
];
# previous step
step_03e16b5f_7876_4d78_bc64_23e16cfd4500 [
shape="rect"
style="filled, rounded"
width="2"
height="0.075"
fontcolor="white"
fillcolor="#4363d8"
fontsize="10pt"
label="Create variable aqiwdo3"
URL="../step_03e16b5f-7876-4d78-bc64-23e16cfd4500.html"
target="_parent"
tooltip="Previous process step:\nCompute target variable 'aqiwdo3' starting from variables 'Concentration' and 'AirPollutant = O3' 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 O3: 0 to 50 eq 'Good' represented by value '0', 50 to 100 eq 'Fair' represented by value '1'; 100 to 130 eq 'Moderate' represented by value '2'; 130 to 240 eq 'Poor' represented by value '3'; 2040 to 380 eq 'Very poor' represented by value '4'; 380 to 800 eq 'Extremely poor' represented by value '5'. The average of the worst air quality level measured on a specific day on each of the background stations in the region provides values to the variable."
];
step_03e16b5f_7876_4d78_bc64_23e16cfd4500:e -> parameter_b5ee4a8f_84ea_4b17_8e3a_0f7146cc6f6a:w [
minlen="2"
];
# output parameter
parameter_1726b265_7d4d_4e11_bf14_d6dd4e8a8fa1 [
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width="2"
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fontcolor="blue"
fontsize="10pt"
URL="https://ess-search.nsd.no/en/variable/36d4e8e3-55c5-4e16-852a-3091eaa0e1d4"
target="_blank"
label=<<i>Variable aqiw2do3:</i><br/>Worst air quality index<br/>level O3, last two days>
tooltip="Output parameter for current process step"
fillcolor="#dcbeff"
];
Step:e -> parameter_1726b265_7d4d_4e11_bf14_d6dd4e8a8fa1:w [
minlen="2"
];
# following step
step_1a6476be_23a9_4e0f_9a48_f70307579001 [
shape="rect"
style="filled, rounded"
width="2"
height="0.075"
fontcolor="white"
fillcolor="#4363d8"
fontsize="10pt"
label="Create variable aqiw2d"
URL="../step_1a6476be-23a9-4e0f-9a48-f70307579001.html"
target="_parent"
tooltip="Following process step:\nCompute target variable 'aqiw2d ' based on 'aqiw2dpm10'; 'aqiw2dpm2_5'; 'aqiw2dso2'; 'aqiwdno2'; 'aqiw2do3', 'region' and 'date'. The maximum value across the source variables becomes the value of the target variable"
];
parameter_1726b265_7d4d_4e11_bf14_d6dd4e8a8fa1:e -> step_1a6476be_23a9_4e0f_9a48_f70307579001:w [
minlen="2"
];
}
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
InputParameter [
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OutputParameter [
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Step -> OutputParameter [
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