Table 1

Differences from the present-day control run of our four mid-Holocene simulations (Sim.; A, AO, AV, AOV) for boreal summer (June, July, August) and winter (December, January, February) and annual averaged near-surface air temperature (Temp., °C), precipitation (Prec., mm/day), and sea-ice area [Ice, 106km2 with fractions (%) of present-day sea-ice area in parentheses]. NH indicates values on average over the Northern Hemisphere, SH over the Southern Hemisphere, and N-AFR over North Africa (between 10° and 30°N). The index L refers to averages over land areas only.

Sim.Temp. (°C)Prec. (mm/day)Ice [106 km2(%)]
NHLNHSHNHLSHLN-AFRLNHSH
Boreal summer
A1.71.00.20.250.040.58
AO1.20.6–0.20.190.010.52–0.9 (–9.7)0.8 (4.9)
AV2.21.30.30.490.061.67
AOV2.51.60.80.540.071.85–2.5 (–27.0)–2.3 (–14.7)
Boreal winter
A–0.8–0.5–0.3–0.01–0.17–0.01
AO–0.5–0.3–0.2–0.01–0.130–0.7 (–5.9)–0.3 (–4.0)
AV–0.7–0.4–0.30–0.170.02
AOV0.40.60.50.05–0.010.05–1.8 (–15.7)–1.9 (–26.2)
Annual averaged
A0.20.100.08–0.030.18
AO0.10–0.10.06–0.030.16–0.9 (–8.4)0.4 (3.0)
AV0.50.30.10.19–0.030.63
AOV1.21.00.70.260.060.72–2.4 (–22.6)–2.1 (–17.3)