Abstract
The spatio-temporal variability of Northern Hemisphere Sea Level Pressure (SLP) and precipitation over the mid-to-low reaches of the Yangtze River (PMLY) is analyzed jointly using the multi-taper /singular value decomposition method (MTM-SVD). Statistically significant narrow frequency bands are obtained from the local fractional variance (LFV) spectrum. Significant interdecadal (i.e., 16-to-18-year periods) and interannual (i.e., 3-to-6-year periods) signals are identified. Moreover, a significant quasi-biennial signal is identified but only for PMLY data. The spatial joint evolution of patterns obtained for peaks in the LFV spectrum sheds light on relationships between SLP and PMLY: the Arctic Oscillation (AO) modulates the variability of the PMLY while the interannual variability of PMLY is in phase with the Northern Atlantic Oscillation (NAO) and the Northern Pacific Oscillation (NPO).
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Han, X., Wei, F., Tourre, Y.M. et al. Spatio-temporal variability of Northern Hemipheric Sea Level Pressure (SLP) and precipitation over the mid-to-low reaches of the Yangtze River. Adv. Atmos. Sci. 25, 458–466 (2008). https://doi.org/10.1007/s00376-008-0458-x
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DOI: https://doi.org/10.1007/s00376-008-0458-x