Spatial–temporal models for ambient hourly PM10 in Vancouver
✍ Scribed by Kathy H. Li; Nhu D. Le; Li Sun; James V. Zidek
- Publisher
- John Wiley and Sons
- Year
- 1999
- Tongue
- English
- Weight
- 433 KB
- Volume
- 10
- Category
- Article
- ISSN
- 1180-4009
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✦ Synopsis
In this article we develop and compare several space±time models for hourly ambient PM 10 collected in the Vancouver area. The models consist of a deterministic trend plus stochastic residuals. We ®nd that the ambient PM 10 ®eld over the area has an essentially constant temporal pattern across its monitoring sites; the spatial variation is relatively small. Our comparison leads us in the end to adopt a model with a common temporal correlation structure for all the sites. The residuals after eliminating serial correlation prove to have at most small-scale spatial correlations, suggesting that dense monitoring networks would be necessary to make widespread spatial interpolation meaningful.