SeftigenLinderholmDrobyshevEtAl2013

Référence

Seftigen, K., Linderholm, H.W., Drobyshev, I., Niklasson, M. (2013) Reconstructed drought variability in southeastern Sweden since the 1650s. International Journal of Climatology, 33(11):2449-2458. (Scopus )

Résumé

In this study, we present the first regional reconstruction of summer drought for southeastern Sweden. The June-July standardized precipitation index (SPI) was reconstructed over the period 1650-2002 based on Pinus sylvestris L. tree-ring width data, where the reconstruction could account for 41.6% of the total variance in the instrumental record over 1901-2002. Our reconstruction suggests an overall wet 18th century and a dry 19th century. The most outstanding pluvial phase in the pre-instrumental period took place in the mid-1720s and lasted over 50 years, while multi-decadal periods of below average moisture conditions were reconstructed in the 1660s-1720s, 1800s-early 30s, and in the 1840s-50s. Several of these dry spells have previously been found in reconstructions from Sweden and Finland, indicating that our reconstruction reflects large-scale moisture anomalies across eastern Fennoscandia. Comparison of the SPI estimates with mid-tropospheric pressure patterns suggests that summertime drought is associated with positive pressure anomalies over British Isles and the North Sea, while an eastward movement of the Icelandic low-pressure systems over the western part of central Fennoscandia results in wetter than normal June-July conditions over the region of interest. © 2012 Royal Meteorological Society.

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@ARTICLE { SeftigenLinderholmDrobyshevEtAl2013,
    AUTHOR = { Seftigen, K. and Linderholm, H.W. and Drobyshev, I. and Niklasson, M. },
    TITLE = { Reconstructed drought variability in southeastern Sweden since the 1650s },
    JOURNAL = { International Journal of Climatology },
    YEAR = { 2013 },
    VOLUME = { 33 },
    PAGES = { 2449-2458 },
    NUMBER = { 11 },
    NOTE = { cited By (since 1996)0 },
    ABSTRACT = { In this study, we present the first regional reconstruction of summer drought for southeastern Sweden. The June-July standardized precipitation index (SPI) was reconstructed over the period 1650-2002 based on Pinus sylvestris L. tree-ring width data, where the reconstruction could account for 41.6% of the total variance in the instrumental record over 1901-2002. Our reconstruction suggests an overall wet 18th century and a dry 19th century. The most outstanding pluvial phase in the pre-instrumental period took place in the mid-1720s and lasted over 50 years, while multi-decadal periods of below average moisture conditions were reconstructed in the 1660s-1720s, 1800s-early 30s, and in the 1840s-50s. Several of these dry spells have previously been found in reconstructions from Sweden and Finland, indicating that our reconstruction reflects large-scale moisture anomalies across eastern Fennoscandia. Comparison of the SPI estimates with mid-tropospheric pressure patterns suggests that summertime drought is associated with positive pressure anomalies over British Isles and the North Sea, while an eastward movement of the Icelandic low-pressure systems over the western part of central Fennoscandia results in wetter than normal June-July conditions over the region of interest. © 2012 Royal Meteorological Society. },
    AUTHOR_KEYWORDS = { Dendroclimatology; Drought reconstruction; Southeastern Sweden; SPI },
    CODEN = { IJCLE },
    DOCUMENT_TYPE = { Article },
    DOI = { 10.1002/joc.3592 },
    ISSN = { 08998418 },
    KEYWORDS = { Dendroclimatology; Low pressure systems; Moisture conditions; Region of interest; Regional reconstruction; Southeastern Sweden; SPI; Standardized precipitation index, Forestry; Moisture, Drought, climate variation; dendroclimatology; drought; eighteenth century; nineteenth century; paleoclimate; precipitation assessment; reconstruction; seventeenth century; spatial variation, Drought; Forestry; Moisture, Sweden, Pinus sylvestris },
    SOURCE = { Scopus },
    URL = { http://www.scopus.com/inward/record.url?eid=2-s2.0-84883185778&partnerID=40&md5=bf405c730cd76b8413ad57f4ae71cc97 },
}

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