Ultrafine Particle Dataset Collected by the OpenSense Zurich Mobile Sensor Network
Creators
- 1. ETH Zurich
- 2. CSH Wien, TU Graz
Description
Ultrafine Particle Dataset Collected by the OpenSense Zurich Mobile Sensor Network
This dataset contains over 2 and a half years (04/2012-12/2014, >36 Mio samples) worth of ultra-fine particle (UFP) concentration measurements collected by a mobile senor network. The sensors are mounted on top of 10 streetcars in the city of Zurich, Switzerland.
Hardware:
- Ultrafine particle sensor: MiniDiSC (see also: Martin Fierz et al. Design, Calibration, and Field Performance of a Miniature Diffusion Size Classifier. Aerosol Science and Technology, Volume 45, 2011.)
- GPS receiver: u-blox EVK-6p
Sensor Data
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ufp_data*.csv column format:
- Time of day: yyyy.mm.dd HH:MM
- Latitude WGS84
- Longitude WGS84
- HDOP: horizontal dilution of precision, uncertainty of the GPS position
- Tram ID
- Number of particles [#/ccm]
- Average particle diameter [nm]
- LDSA: lung deposited surface area [um2 /cm3]
Data quality:
The data has been post-processed by performing a periodic null-offset calibration and filtering samples during malfunction.
High-Resolution Maps
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The data has been used to create high-resolution ultrafine particle concentration maps. Four maps, which show the seasonal average particle concentration over seasonal periods, can be found in ufp_seasonal_maps_201204_201304.csv.
ufp_map*.csv column format:
- Latitude WGS84
- Longitude WGS84
- Estimated number of particles [#/ccm]
Map quality
Please have a look at the papers in References 1. and 2. (Hasenfratz et al. 2014 and 2015) for a detailed evaluation of the maps.
References
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The dataset has been used and is described in more detail in the following publications:
- David Hasenfratz et al. Pushing the Spatio-Temporal Resolution Limit of Urban Air Pollution Maps. IEEE International Conference on Pervasive Computing and Communications (PerCom). Budapest, Hungary, March 2014. Best Paper Award.
- David Hasenfratz et al. Deriving High-Resolution Urban Air Pollution Maps Using Mobile Sensor Nodes. Pervasive and Mobile Computing. Elsevier, 2015.
- David Hasenfratz et al. Demo Abstract: Health-Optimal Routing in Urban Areas. ACM/IEEE International Conference on Information Processing in Sensor Networks (IPSN). Seattle, USA, April 2015.
- Michael Müller et al. Statistical modelling of particle number concentration in Zurich at high spatio-temporal resolution utilizing data from a mobile sensor network. Atmospheric Environment. Elsevier, 2016.
For further information, visit: http://www.opensense.ethz.ch