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Title of Journal: Theor Appl Climatol

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Abbravation: Theoretical and Applied Climatology

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Springer Vienna

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Weather maps classification over Greek domain based on isobaric line patterns

Authors: Athanassios Zagouras, Athanassios A. Argiriou, George Economou, Spiros Fotopoulos, Helena A. Flocas,

Publish Date: 2013/03/14
Volume: 114, Issue:3-4, Pages: 691-704
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The paper presents a semi-supervised weather classification method based on 850-hPa isobaric level maps. A preprocessing step is employed, where isolines of geopotential height are extracted from weather map images via an image processing procedure. Α feature extraction stage follows where two techniques are applied. The first technique implements phase space reconstruction, and yields multidimensional delay distributions. The second technique is based on chain code representation of signals, from which histogram features are derived. Similarity measures are used to compare multidimensional data and the k-means algorithm is applied in the final stage. The method is applied over the area of Greece, and the resulting catalogues are compared to a subjective classification for this area. Numerical experiments with datasets derived from the European Meteorological Bulletin archives exhibit an up to 91 % accurate agreement with the subjective weather patterns.Funding by the University of Patras Research Committee under the Basic Research Program 2009–2012 ‘K. Karatheodori’, project No. C907, is gratefully acknowledged. The database of the processed images of weather maps is available at



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Other Papers In This Journal:

  1. Weather maps classification over Greek domain based on isobaric line patterns
  2. Stable estimations for extreme wind speeds. An application to Belgium
  3. Retrieving daily global solar radiation from routine climate variables
  4. Soil moisture variations in remotely sensed and reanalysis datasets during weak monsoon conditions over central India and central Myanmar
  5. A hybrid SVM-FFA method for prediction of monthly mean global solar radiation
  6. Regional droughts in southern South America
  7. Estimation of daily global solar radiation as a function of routine meteorological data in Mediterranean areas
  8. North Sea near-surface wind climate and its relation to the large-scale circulation patterns
  9. On the link between potential evaporation and regional evaporation from a CBL perspective
  10. Identification of the principal patterns of summer moisture transport in South America and their representation by WCRP/CMIP3 global climate models
  11. Long-term snow and weather observations at Weissfluhjoch and its relation to other high-altitude observatories in the Alps
  12. Analysis of monthly
  13. Low-frequency sea-level variability in the South China Sea and its relationship with ENSO
  14. Climatology of Alaskan wildfires with special emphasis on the extreme year of 2004
  15. Study of evapotranspiration and evaporation beneath the canopy in a buckwheat field
  16. Climate change scenarios of precipitation extremes in Central Europe from ENSEMBLES regional climate models
  17. Simulation skill of APCC set of global climate models for Asian summer monsoon rainfall variability

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