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Table 3 Seasonal differences (ASO minus AMJ) and 95% confidence intervals for precipitation (mm day−1), tropospheric thickness (between 200 and 500 hPa levels; m) over Asia, and an East Asian-Western North Pacific monsoon index, the meridional gradient of zonal wind at the 850 hPa level (Wang et al. 2008) during the MWP relative to the LIA. PMIP3 (orbital forcing run) row represents a 10-model ensemble mean (5-member ensemble mean for the MRI-CGCM2.3 orbital forcing run)

From: Seasonal modulation of the Asian summer monsoon between the Medieval Warm Period and Little Ice Age: a multi model study

  PMIP3 Orbital forcing run
Precip (mm day−1)15°N–35°N, 70°E–120°E 0.09 ± 0.03 0.06 ± 0.04
Z200–Z500 (m) 25°N–60°N, 80°E–140°E 6.39 ± 1.82 6.52 ± 1.60
Z200–Z500 (m) EQ–25°N, 80°E–140°E 3.18 ± 1.02 3.81 ± 1.66
Z200–Z500 (m) 25°N–60°N minus EQ–25°N, 80°E–140°E 3.22 ± 1.14 2.70 ± 2.16
U850 in 20°N–30°N, 110°E–140°E minus U850 in 5°N–15°N, 90°E–130°E (m s−1) 0.05 ± 0.28 0.24 ± 0.69