River Discharge into the Mediterranean Sea: Climatology and Aspects of the Observed Variability
River Discharge into the Mediterranean Sea: Climatology and Aspects of the Observed Variability
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DOI:
10.1175/jcli-3225.1
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发表时间:
2004-12
影响因子:
4.9
通讯作者:
M. Struglia;A. Mariotti;A. Filograsso
中科院分区:
文献类型:
--
作者:
M. Struglia;A. Mariotti;A. Filograsso
Abstract River discharge across the Mediterranean catchment basin is investigated by means of an extensive dataset of historical monthly time series to represent at-best discharge into the sea. Results give an annual mean river discharge into the Mediterranean of 8.1 × 103 m3 s−1, or at most a value that should not exceed 10.4 × 103 m3 s−1. The seasonal cycle has an amplitude of 5 × 103 m3 s−1, with a dry season in midsummer and a peak flow in early spring. Dominant contributions are from Europe with a climatological annual mean of 5.7 × 103 m3 s−1. Discharge in the Adriatic Sea, the Gulf of Lion, and the Aegean Sea together account for 62% of Mediterranean discharge, which mostly occurs in the Adriatic (2.7 × 103 m3 s−1). The North Atlantic Oscillation (NAO) impacts Mediterranean discharge primarily in winter, with most river discharges across the Mediterranean catchment being anticorrelated with the NAO. Related winter anomalies are about 10%–20% of the winter means. During the period 1960–90, Mediterra...