The influence of atmospheric circulation types on regional patterns of precipitation in Marmara (NW Turkey)
Tóm tắt
In this study, regional patterns of precipitation in Marmara are described for the first time by means of Ward’s hierarchical cluster analysis. Daily values of winter precipitation data based on 19 meteorological stations were used for the period from 1960 to 2012. Five clusters of coherent zones were determined, namely Black Sea-Marmara, Black Sea, Marmara, Thrace, and Aegean sub-regions. To investigate the prevailing atmospheric circulation types (CTs) that cause precipitation occurrence and intensity in these five different rainfall sub-basins, objective Lamb weather type (LWT) methodology was applied to National Centers of Environmental Prediction (NCEP)/National Center for Atmospheric Research (NCAR) reanalysis of daily mean sea level pressure (MSLP) data. Precipitation occurrence suggested that wet CTs (i.e. N, NE, NW, and C) offer a high chance of precipitation in all sub-regions. For the eastern (western) part of the region, the high probability of rainfall occurrence is shown under the influence of E (SE, S, SW) atmospheric CTs. In terms of precipitation intensity, N and C CTs had the highest positive gradients in all the sub-basins of the Marmara. In addition, although Marmara and Black Sea sub-regions have the highest daily rainfall potential during NE types, high daily rainfall totals are recorded in all sub-regions except the Black Sea during NW types.
Tài liệu tham khảo
Baltacı H, Göktürk OM, Kındap T, Ünal A, Karaca M (2015) Atmospheric circulation types in Marmara Region (NW Turkey) and their influence on precipitation. Int J Climatol 35:1810–1820
Brisson E, Demuzere M, Kwakernaak B, Van Lipzig NPM (2011) Relations between atmospheric circulation and precipitation in Belgium. Meteorog Atmos Phys 111:27–39
Burt TP, Ferranti EJS (2012) Changing patterns of heavy rainfall in upland areas: a case study from northern England. Int J Climatol 32:518–532
Collier GC, Krzysztofowicz R (2000) Special issue on quantitative precipitation forecast. J Hydrol 239:1–338
Erinç S (1984) Climatology and its methods. Güray Press Inc., Istanbul
Fovell RG, Fovell MC (1993) Climate zones of the conterminous United States defined using cluster analysis. J Clim 6:2103–2135
Gallego MC, Garcia JA, Vaquero JM, Mateos VL (2006) Changes in frequency and intensity of daily precipitation over the Iberian Peninsula. J Geophys Res 111:D24105
Gong X, Richman MB (1995) On the application of cluster analysis to growing season precipitation data in North America east of the Rockies. J Clim 8:897–931
Goodess CM, Jones PD (2002) Links between circulation and changes in the characteristics of Iberian rainfall. Int J Climatol 22:1593–1615
Huth R, Beck C, Philipp A, Demuzere M, Ustrnul Z, Cahynova M, Kysely J, Tveito OE (2008) Classifications of atmospheric circulation patterns. Ann N Y Acad Sci 1146:105–152
Jenkinson AF, Collison FP (1977) An initial climatology of gales over the North Sea. Synoptic Climatology Branch Memorandum 62, Meteorological Office: Bracknell, UK.
Jones PD, Hulme M, Briffa KR (1993) A comparison of Lamb circulation types with an objective classification scheme. Int J Climatol 13:655–663
Kalnay E, Kanamitsu M, Kistler R, Collins W, Deaven D, Gandin L, Iredell M, Saha S, White G, Wollen J, Zhu Y, Chelliah M, Ebisuzaki W, Higgins W, Janowiak J, Mo KC, Ropelewski C, Wang J, Leetmaa A, Reynolds R, Jenne R, Joseph D (1996) The NCEP/NCAR 40-year reanalysis project. Bull Am Meteorol Soc 77:437–471
Lopez-Bustins J, Martin-Vide J, Sanchez-Lorenzo A (2008) Iberia winter rainfall trends based upon changes in teleconnection and circulation patterns. Glob Planet Chang 63:171–176
Ning L, Bradley RS (2015) Winter precipitation variability and corresponding teleconnections over the northeastern United States. J Geophys Res Atmos 113:7931–7945
Osborn TJ, Hulme M (2002) Evidence for trends in heavy rainfall events over the UK. Phil Trans R Soc A 360:1313–1325
Osborn TJ, Hulme M, Jones PD, Basnett TA (2000) Observed trends in the daily intensity of United Kingdom precipitation. Int J Climatol 20:347–364
Philipp A, Bartholy J, Beck C, Erpicum M, Esteban P, Fettweis X, Huth R, James P, Jourdain S, Kreienkamp F, Krennert T, Lykoudis S, Michalides SC, Pianko-Kluczynska K, Post P, Rasilla Alvarez D, Schiemann R, Spekat A, Tymvios FS (2010) Cost733cat—a database of weather and circulation type classifications. Phys Chem Earth 35:360–373
Sahin S, Cigizoglu HK (2012) The sub-climate regions and the sub-precipitation regime regions in Turkey. J Hydrol 450-451:180–189
Sönmez İ, Kömüşcü AÜ (2011) Reclassification of rainfall regions of Turkey by K-means methodology and their temporal variability in relation to North Atlantic Oscillation (NAO). Theor Appl Climatol 106:499–510
Türkeş M (1996) Spatial and temporal analysis of annual rainfall variations in Turkey. Int J Climatol 16:1057–1076
Türkeş M, Tatlı H (2011) Use of the spectral clustering to determine coherent precipitation regions in Turkey for the period 1929–2007. Int J Climatol 31:2055–2067
Ünal Y, Kındap T, Karaca M (2003) Redefining the climate zones of Turkey using cluster analysis. Int J Climatol 23:1045–1055