Atmospheric Trace Gases

Below is an overview of all atmospheric trace gas parameters. The abbreviation AOD stands for Aerosol Optical Depth.

Each parameter is explained in more detail below.

Black Carbon Aerosol Optical Depth

Gives the black carbon aerosol optical depth at 550nm.

black_carbon_aod_550nm:idx

Examples

Hydrophilic Black Carbon Concentration

Hydrophilic black carbon concentration at the surface in units of [μg/m3].

black_carbon_hydrophil:ugm3

Examples

Hydrophobic Black Carbon Concentration

Hydrophobic black carbon concentration at surface in units [μg/m3].

black_carbon_hydrophob:ugm3

Examples

Carbon Monoxide Concentration

Carbon monoxide concentration at surface in units of [μg/m3].

co:ugm3

Examples

Hydroxyl Radikal

The hydroxyl radical (OH) is the major oxidizing chemical in the atmosphere, destroying about 3.7 Gt of trace gases, including CH4 and all Hydrofluorocarbons (HFCs) and hydrochlorofluorocarbons (HCFCs), each year (Ehhalt, 1999). This parameter is given in the units of .

oh:pgm3

Example

Nitrogen Dioxide Concentration

Nitrogen dioxide concentration at surface in units of [μg/m3].

no2:ugm3

Examples

Nitrogen Monoxide Concentration

Nitrogen monoxide concentration at surface in units of [μg/m3].

no:ugm3

Examples

Sulfur Dioxide Concentration

Sulfur dioxide concentration at surface in units of [μg/m3].

so2:ugm3

Examples

Sulfate Aerosol Optical Depth

Sulfate aerosol optical depth at 550 nm.

sulphate_aod_550nm:idx

Examples

Ozone Concentration

Ozone concentration at surface in units of [μg/m3].

o3:ugm3

Examples

Total column of trace gases

Methane

Total column content of methane in units of [μg/m2].

tc_ch4:ugm2

Examples

Nitrogen Dioxide

Total column content of nitrogen dioxide in units of [μg/m2].

tc_no2:ugm2

Examples

Nitrogen Monoxide

Total column content of nitrogen monoxide in units of [μg/m2].

tc_no:ugm2

Examples

Ozone

Total column content of ozone in units of [μg/m2].

tc_o3:ugm2

Examples

Sulfur Dioxide

Total column content of sulfur dioxide in units of [μg/m2].

tc_so2:ugm2

Examples

Trace Gas Air Quality

Air quality indices for trace gases. The index returns an integer from 0 (Good) to 5 (Extremely Poor).

air_quality_no2:idx
air_quality_o3:idx
air_quality_so2:idx

The index is defined using concentration thresholds from the European Environment Agency. The concentrations are given in [μg/m3].

Good [0]Fair [1]Moderate [2]Poor [3]Very Poor [4]Extremely Poor [5]
NO20-4040-9090-120120-230230-340340-1000
O30-5050-100100-130130-240240-380380-800
SO20-100100-200200-350350-500500-750750-1250

Total Air Quality

The total air quality accounts for the particulate matter and trace gas concentration. It returns the maximum of air_quality_pm2p:idx, air_quality_pm10:idx, air_quality_no2:idx, air_quality_o3:idx and air_quality_so2:idx.

air_quality:idx