Fig. 1: EOF analysis of the seasonal cycle of δ18Op over the EAM region and its surroundings. | Communications Earth & Environment

Fig. 1: EOF analysis of the seasonal cycle of δ18Op over the EAM region and its surroundings.

From: Precipitation oxygen isotope variability across timescales in East Asia records two sub-processes of summer monsoon system

Fig. 1

a The leading EOF mode (EOF1) of observed δ18Op. b The EOF1 of modeled δ18Op. c The leading principal components (PC1) of observed δ18Op. d The PC1 of modeled δ18Op. e Seasonal cycle of observed (red) and simulated (blue) δ18Op in northern China (N. China). f Seasonal cycle of observed (red) and simulated (blue) δ18Op in southern China (S. China). The percentage values in the top right of (a, b) represent the variance explained by EOF1. In (a, b), the upper and bottom black boxes mark the regions of N. China (37°N to 43°N, 108°E to 120°E) and S. China (22°N to 35°N, 108°E to 120°E), respectively. The dark gray lines outline the part of the Tibetan Plateau boundary. Detailed information regarding the observed δ18Op is provided in Supplementary Table 1. The modeled δ18Op is derived from the final 20 years of a 40-year PI water tagging experiment.

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