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| Mean monthly surface temperature and temperature at 850 mbar (about 1500 m), only on days when Forks had precipitation, vs. mean monthly precipitation (mm/day) at Forks, over 1948-96 (Rasmussen and others, 2000). |
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| Mean monthly temperature at 850 mbar on wet days, versus mean monthly precipitation at Forks for periods: (i) 1948-1976, and (ii) 1977-1996. The plot shows that the recent warming and drying has been mainly a winter phenomenon. |