Periglacial Climates - The Periglacial Environment - page 35

Table 3.1. Continued

(a) Temperature (°C) and J F M A M J J A S O N D

precipitation (mm) data

Antarctica:
Inexpressible Island, Northern Victoria Land
80 m. a.s.l.

T(°C) − 4 − 12 − 20 − 24 − 26 − 25 − 25 − 26 − 25 − 19 − 10 − 4

Wind speed (V): < 1 - 2.3%

(knots) 1-6 - 12.7% Direction: 320°

7-16 - 18.3% Constancy: 0.80

17-27 - 23.2%

28-40 - 24.9%

> 41 - 18.6%

(b) Summary data Latitude Mean annual Annual Total precipitation

temperature temperature (mm)

(°C) range

High Arctic Climates Spitsbergen 78° N − 8 25 298

Sachs Harbour (Ikaahuk) 72° N − 14 36 93

Continental climates Yakutsk 62° N − 10 62 247

Dawson City 64° N − 5 45 343

Alpine climates Sonnblick 47° N − 7 15 1638

Niwot Ridge 39° N − 3 22 1021

Qinghai-Xizang Plateau
(Tibet) Fenghuo Shan 34° N − 6 23 345

Low temperature range Jan Mayen 71° N 0 8 365

Gruytviken 54° S + 2 7 1309

Antarctica Inexpressible Island 74° S − 18 19 N/A

Sources: Troll (1944) and local records (AES, Canada; INSTAAR, USA; PNRA, Italy; Northwest Railway Institute, China).