期刊
INTERNATIONAL JOURNAL OF BIOMETEOROLOGY
卷 57, 期 2, 页码 307-316出版社
SPRINGER
DOI: 10.1007/s00484-012-0555-5
关键词
Aerobiology; Pollen; Olive; Modelling; Flowering severity; Biometeorological indices
资金
- European Social Fund
- Spanish Science Ministry the Ramon y Cajal contract
- Project FENOCLIM [CGL2011-24146]
- Andalusia Regional Government [P10-RNM-5958]
- Spanish Inter-Ministerial Commission of Science and Technology(MICYT) [TIN2011-22794]
- FEDER funds
- Junta de Andalucia (Spain) [P08-TIC-3745]
This paper reports on modelling to predict airborne olive pollen season severity, expressed as a pollen index (PI), in Crdoba province (southern Spain) several weeks prior to the pollen season start. Using a 29-year database (1982-2010), a multivariate regression model based on five indices-the index-based model-was built to enhance the efficacy of prediction models. Four of the indices used were biometeorological indices: thermal index, pre-flowering hydric index, dormancy hydric index and summer index; the fifth was an autoregressive cyclicity index based on pollen data from previous years. The extreme weather events characteristic of the Mediterranean climate were also taken into account by applying different adjustment criteria. The results obtained with this model were compared with those yielded by a traditional meteorological-based model built using multivariate regression analysis of simple meteorological-related variables. The performance of the models (confidence intervals, significance levels and standard errors) was compared, and they were also validated using the bootstrap method. The index-based model built on biometeorological and cyclicity indices was found to perform better for olive pollen forecasting purposes than the traditional meteorological-based model.
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