geomon

Global Earth Observation and Monitoring
of the atmosphere


Station Report Card for Cabauw (NL11)

Site Identity

Name:Cabauw
GEOmon ID:NL11
EMEP ID:NL11
GAW ID:
Longitude: 4.933 (°E)
Latitude:51.967 (°N)
Altitude: 60 (m) above sea level
Fig.: Location of Site

Measurements

The GEOmon activity 2.1 focuses on surface observations of ozone, nitrogen dioxide and carbon monoxide. At most stations presented here, measurements of several other trace gases and aerosol parameters are also available but are not listed here. Refer to GAWSIS for more information on other parameters.

The complete set of preliminary harmonized data can be downloaded here: (hourly, daily data, data description).
Data of the site Cabauw can be downloaded here: (hourly, daily data, data description)
Ozone Measurements
Height of O3 inlet:60 (m) Length of O3 sample line:Not available (m)
O3 sampling method:Continuous O3 analysis method:UV-Absorption
O3 sampling interval:Not available
O3 calibration with NIST standard:Not available Location of used NIST standard:Not available
First measurement in dataset:2000-01-01 00:00 Last measurement in dataset:2007-05-31 00:00
Data coverage: 70.1 (%) Data source/provider:other
Comments:None

Nitrogen Dioxide Measurements
Height of NO2 inlet:Not available (m) Length of NO2 sampling line:Not available (m)
NO2 sampling method:Not available NO2 analysis method:Not available
NO2 sampling frequency:Not available
NO2 calibration with primary standard:Not available
First measurement in dataset:2000-01-01 00:00 Last measurement in dataset:2007-05-31 00:00
Data coverage: 85.5 (%) Data source/provider:other
Comments:None

Carbon Monoxide Measurements
Not available.

Fig.: Overview of available measurements (daily data)

Surroundings 10 km

Median altitude: 1 (m) a.s.l. Standard deviation of altitude: 1 (m)
Site Altitude: 60 (m) a.s.l. Terrain below site: 67.7 (%)
Total population:104552 Standard deviation of population: 3615
Mean population density: 313 (km-2) Standard deviation of population density: 273 (km-2)
Local population density: 172.2 (km-2)
Dominating Land Cover Types:
Herbaceous Cover, closed-open (13) 80.6 (%)
Cultivated and managed areas (16) 16.7 (%)
Artificial surfaces and associated areas (22) 2.5 (%)
Tree Cover, broadleaved, deciduous, closed (2) 0.2 (%)
 
Mean O3 deposition velocity: 0.78 (cm s-1) Standard deviation of O3 deposition velocity: 0.13 (cm s-1)
Fig.: Topography Fig.: Population
 
Fig.: Land Cover

Surroundings 50 km

Median altitude: 1 (m) a.s.l. Standard deviation of altitude: 5 (m)
Site Altitude: 60 (m) a.s.l. Terrain below site: 66.5 (%)
Total population:7192708 Standard deviation of population: 11935
Mean population density: 874 (km-2) Standard deviation of population density: 904 (km-2)
Local population density: 172.2 (km-2)
Dominating Land Cover Types:
Cultivated and managed areas (16) 53.3 (%)
Herbaceous Cover, closed-open (13) 23.7 (%)
Artificial surfaces and associated areas (22) 14.7 (%)
Tree Cover, needle-leaved, evergreen (4) 3.8 (%)
 
Mean O3 deposition velocity: 0.77 (cm s-1) Standard deviation of O3 deposition velocity: 0.30 (cm s-1)
Fig.: Topography Fig.: Population
 
Fig.: Land Cover

12 hour Catchment Area

Mean radius: 144 (km) Standard deviation radius: 27 (km)
Equivalent radius: 148 (km) Circularity: 0.70
Total area: 68356 (km2) Total residence time: 18.4 (%)
Maximal radius: 199 (km) Minimal radius: 117 (km)
Maximal radius direction:SW Minimal radius direction:SE
Average population density: 492 (km-2) Standard deviation of population density: 519 (km-2)
 
Dominating Land Cover Types:
Cultivated and managed areas (16) 41.2 (%)
Herbaceous Cover, closed-open (13) 24.9 (%)
Water Bodies (natural & artificial) (20) 20.6 (%)
Artificial surfaces and associated areas (22) 8.0 (%)
 
Average O3 deposition velocity: 0.66 (cm s-1) Standard deviation of O3 deposition velocity: 0.29 (cm s-1)
Catchment area derived from:FLEXPART nest
Fig.: Surface Footprint and Catchment Area , EuropeFig.: Surface Footprint Catchment Area , North Atlantic Region

24 hour Catchment Area

Mean radius: 320 (km) Standard deviation radius: 61 (km)
Equivalent radius: 327 (km) Circularity: 0.47
Total area:335406 (km2) Total residence time: 33.3 (%)
Maximal radius: 423 (km) Minimal radius: 244 (km)
Maximal radius direction:SW Minimal radius direction:NE
Average population density: 368 (km-2) Standard deviation of population density: 504 (km-2)
 
Dominating Land Cover Types:
Cultivated and managed areas (16) 38.9 (%)
Water Bodies (natural & artificial) (20) 30.4 (%)
Herbaceous Cover, closed-open (13) 17.1 (%)
Artificial surfaces and associated areas (22) 6.3 (%)
 
Average O3 deposition velocity: 0.60 (cm s-1) Standard deviation of O3 deposition velocity: 0.35 (cm s-1)
Catchment area derived from:FLEXPART nest
Fig.: Surface Footprint and Catchment Area , EuropeFig.: Surface Footprint Catchment Area , North Atlantic Region

48 hour Catchment Area

Mean radius: 575 (km) Standard deviation radius: 109 (km)
Equivalent radius: 575 (km) Circularity: 0.27
Total area:1038515 (km2) Total residence time: 52.5 (%)
Maximal radius: 743 (km) Minimal radius: 465 (km)
Maximal radius direction:SW Minimal radius direction:SE
Average population density: 289 (km-2) Standard deviation of population density: 492 (km-2)
 
Dominating Land Cover Types:
Cultivated and managed areas (16) 36.6 (%)
Water Bodies (natural & artificial) (20) 33.8 (%)
Herbaceous Cover, closed-open (13) 14.6 (%)
Artificial surfaces and associated areas (22) 5.1 (%)
 
Average O3 deposition velocity: 0.57 (cm s-1) Standard deviation of O3 deposition velocity: 0.37 (cm s-1)
Catchment area derived from:FLEXPART nest
Fig.: Surface Footprint and Catchment Area , EuropeFig.: Surface Footprint Catchment Area , North Atlantic Region


Please contact Stephan Henne in case of any questions.