A decreasing trend in the δ 18 O–T relationship revealed a lower T effect in Ankara, Ottawa and Vienna for the summer warm period (May–October) due to more intensive evaporation and transpiration.
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Temperature and precipitation effects on the isotopic composition of global precipitation reveal long-term climate dynamics.
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Non-linear time trends were found for δ 18 O pp in Bangkok, with a negative trend until the 1990s and then rising in the > 2000s (Fig. 4 ) which coincides with modes of Pacific Decadal Oscillation and NAO 19 .