In addition to these sites, the Tundra Biome 
established several locations of various duration. 
In order to establish the magnitude of the spring 
and summer temperature gradient from the 
coast inland, recording thermographs in standard 
shelters were deployed in 1972 and 1973 at 
Point McIntyre and on a terrace along the 
Sagavanirktok River approximately 16 km south 
of the Deadhorse Airfield. An automatic, bat- 
tery operated weather station was installed in 
the Biome study area on the pingo east of the 
Putuliagayuk River and operated intermittently 
between 1971 and 1973. The 1971 precipitation 
data are from a lake adjacent to the Biome study 
area (Kane and Carlson 1973). Other projects 
have collected climatic data in the Prudhoe Bay 
area, notably the Gas Arctic project located 
across from the Mukluk Camp. Casual compari- 
sons of these data have been made but are not 
discussed in the report. 
Table 2 
Mean monthly and annual temperatures (°C) for Barrow, 
Prudhoe, and Barter Island (1970-1973) * 
1973 
Barter 
Barrow Prudhoe Island Barrow 
Jan -25.3 -26.9 -24.6 -26.8 
Feb -25.1 -28.7 -26.9 -28.4 
Mar -29.3 -33.7 -31.6 -28.7 
Apr -19.3 -19.1 -18.8 -20.2 
May -7.2 -5.4 -5.4 -7.7 
June 0.7 De 1:2 0.3 
July 4.3 6.8 4.9 6.1 
Aug 4.3 6.4 4.3 4.8 
Sept 11s | (e7/ 17 -0.4 
Oct -7.0 -10.4 -9.0 -6.1 
Nov -13.4 -17.4 -16.4 -17.0 
Dec. -20.8 -22.6 Bal |e -19.3 
Annual -11.4 -12.3 -11.8 -11.9 
1970 
Barter 
Barrow Prudhoe Island Barrow 
Jan -24.7 -27.6 -26.5 -26.3 
Feb -27.2 -29.0 -27.3 -28.2 
Mar -28.0 -29.2 -28.5 -28.5 
Apr -19.4 -18.6 -18.1 -19.8 
May -7.2 -7.2 -6.7 -7.6 
June 0.5 2.1 0.8 0.8 
July 32. 5.4 3.8 4.6 
Aug Tez -4.8 4.7 29 
Sept -3.5 -2.5 -2.8 -0.8 
Oct -17.5 -17.2 -16.2 -10.1 
Nov -20.1 -19.5 -18.2 -17.2 
Dec -23.4 -27.6 -26.0 -21.8 
Annual -13.8 -13.9 -13.4 -12.7 
1970-1973 Mean 
1972 1971 
Barter Barter 
Prudhoe Island Barrow Prudhoe Island 
-29.4 -26.9 -28.6 -32.9 -30.4 
32.4 28.8 -32.3 SEA -34.6 
87) |) 28.5 -27.9 29.7 28.4 
215 20.3 -20.3 21.7 213 
Th) Flee} -8.1 6.8 6.5 
22 Ae2 TZ 4.1 2if 
6.3 4.1 4.7 Le 6.1 
5.7 5.2 0.8 27 2.0 
1.8 0.9 0.2 0.5 0.8 
8.6 6.3 -9.9 -13.6 11.4 
18.4 ies -18.1 20.7 17.4 
22ef 20.4 -24.1 28.4 24.6 
13:3 12.2 -13.5 14.8 13.7 
(1941-1970) 30-Year Normals 
Barter Barter 
Prudhoe Island Barrow Island 
-29.2 -27.1 -25.9 -26.2 
-31.8 -29.4 -28.1 -28.6 
31.0 29.2 -26.2 25.9 
20.2 19.6 -18.3 TL 
6.7 -6.5 7.2 6.1 
2.6 1.4 0.6 12 
6.4 4.7 3.7 4.4 
4.8 4.1 ot 3.8 
0.8 0.7 -0.9 0.2 
12.5 10.7 9.3 8.7 
19.0 173 -18.1 VIET. 
25:3 Zac -24.6 24.7 
-13.6 -12.8 -12.6 -12.2 
*Source: Barrow and Barter Island: National Weather Service. Prudhoe Bay: BP Alaska, Inc. Mukluk site with several 
intervals of missing data filled in with Prudhoe tower data. 
