Investigation of Precipitation Variations over Wet and Dry Areas from Observation and Model

Figure 5

Low-pass filtered time series for 337 hPa vertical pressure velocity Ω () from GISS/HYCOM. (a) Ω over high-precipitation area ( mm/mon.) from the control simulation (solid line) and trend (dashed line). (b) Ω over high-precipitation area from the historic simulation (solid line) and trend (dashed line). (c) Same as (a) except for areas with precipitation <50 mm/mon. (d) Same as (b) except for areas with precipitation <50 mm/mon.

(a) > 200 mm/mon.

(b) > 200 mm/mon.

(c) < 50 mm/mon.

(d) < 50 mm/mon.