Shemya: Difference between revisions
removed Category:Airports in the Aleutians West Census Area, Alaska using HotCat not an airport |
Climate data - updated and going back further |
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|Jun record high F = 57 |
|Jun record high F = 57 |
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|Jul record high F = 64 |
|Jul record high F = 64 |
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|Aug record high F = |
|Aug record high F = 62 |
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|Sep record high F = |
|Sep record high F = 66 |
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|Oct record high F = |
|Oct record high F = 64 |
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|Nov record high F = |
|Nov record high F = 58 |
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|Dec record high F = 48 |
|Dec record high F = 48 |
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|year record high F = |
|year record high F = 66 |
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|Jan high F = 33.8 |
|Jan high F = 33.8 |
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|Feb high F = 33.5 |
|Feb high F = 33.5 |
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|Mar high F = |
|Mar high F = 33.7 |
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|Apr high F = |
|Apr high F = 36.8 |
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|May high F = |
|May high F = 40.2 |
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|Jun high F = |
|Jun high F = 43.9 |
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|Jul high F = |
|Jul high F = 45.1 |
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|Aug high F = |
|Aug high F = 48.8 |
||
|Sep high F = 50.7 |
|Sep high F = 50.7 |
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|Oct high F = 45.4 |
|Oct high F = 45.4 |
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|Nov high F = 39.1 |
|Nov high F = 39.1 |
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|Dec high F = 35.3 |
|Dec high F = 35.3 |
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|year high F = |
|year high F = 40.5 |
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|Jan low F = 28.4 |
|Jan low F = 28.4 |
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|Feb low F = |
|Feb low F = 27.9 |
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|Mar low F = |
|Mar low F = 28.3 |
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|Apr low F = |
|Apr low F = 29.2 |
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|May low F = |
|May low F = 31.8 |
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|Jun low F = |
|Jun low F = 36.9 |
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|Jul low F = |
|Jul low F = 40.2 |
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|Aug low F = |
|Aug low F = 46.0 |
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|Sep low F = 45.0 |
|Sep low F = 45.0 |
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|Oct low F = 39.3 |
|Oct low F = 39.3 |
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|Nov low F = 33.1 |
|Nov low F = 33.1 |
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|Dec low F = 29.6 |
|Dec low F = 29.6 |
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|year low F = |
|year low F = 34.6 |
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|Jan record low F = |
|Jan record low F = 6 |
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|Feb record low F = |
|Feb record low F = 4 |
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|Mar record low F = |
|Mar record low F = 5 |
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|Apr record low F = 2 |
|Apr record low F = 2 |
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|May record low F = |
|May record low F = 14 |
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|Jun record low F = |
|Jun record low F = 23 |
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|Jul record low F = |
|Jul record low F = 34 |
||
|Aug record low F = 38 |
|Aug record low F = 38 |
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|Sep record low F = 33 |
|Sep record low F = 33 |
||
Revision as of 06:30, 6 February 2017
Shemya or Simiya (Aleut: Samiyax̂[1]) is a small island in the Near Islands group of the Semichi Islands chain in the Aleutian Islands archipelago southwest of Alaska, at 52°43′27″N 174°07′08″E / 52.72417°N 174.11889°E. It has a land area of 5.903 sq mi (15.289 km²), and is about 1,200 miles (1,900 km) southwest of Anchorage, Alaska. It is 4.39 kilometres (2.73 mi) wide and 6.95 kilometres (4.32 mi) long.
The Russian vessel Saint Peter and Paul wrecked at Shemya in 1762. Most of the crew survived.
A United States Air Force radar, surveillance, and weather station and aircraft refueling station, including a 10,000 ft (3 km) long runway, opened on Shemya in 1943 and is still in operation. The station, originally Shemya Air Force Base or Shemya Station, had 1,500 workers at its peak in the 1960s. Observations from Shemya were normally the first radar reports of new Russian satellite launches from Tyuratam (Baikonur) in the early days of satellite tracking; see Project Space Track.
The United States Air Force airborne intelligence platforms "Cobra Ball", "Rivet Amber," and "Rivet Ball" flew intercontinental ballistic missile tracking flights from this island near the Soviet Union, especially the Kamchatka Peninsula, during the height of the Cold War.
In 1956, Northwest Airlines leased Shemya Island from the U.S. government to use as a refueling station on their North Pacific route. According to Northwest's website, that made them "the first airline to operate its own airport."[2]
The station was renamed the Eareckson Air Station in 1993 to honor USAF Colonel William O. Eareckson, who had commanded bomber operations during the Aleutian Campaign of World War II.
The station still operates as a radar station and aircraft refueling station with a staff of about 180 people. The 2000 census reported an official resident population of 27 persons on the island.
One of the most recognizable features of the island is the COBRA DANE radar system. This radar was built in 1976 and brought on-line in 1977 for the primary mission of intelligence gathering in support of verification of the Strategic Arms Limitation Talks (SALT) II agreement.
Shemya was an important outpost during the Cold War. As part of Project Bluegrass, the White Alice Communications System provided a vital tropospheric scatter communications link to the mainland during the early-1960s to late-1970s. Its two 120 ft parabolic reflectors and 50 kW transmitter output bridged the nearly 400 mile gap to Adak, Alaska.
The weather on Shemya is very drastic, though the temperatures only vary between single digits to the mid fifties, and the climate is perhaps the most equatorward low-altitude occurrence of a polar climate (ET) in the world, though it is extremely close to a subpolar oceanic climate (Cfc). The island weather is most likely to be cloudy with a mist and the wind is often in the mid 30s to 40 mph. The Japanese current in the Pacific to the south of the island regulates the temperature.
| Climate data for Shemya, Alaska | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
| Record high °F (°C) | 44 (7) |
44 (7) |
43 (6) |
47 (8) |
48 (9) |
57 (14) |
64 (18) |
62 (17) |
66 (19) |
64 (18) |
58 (14) |
48 (9) |
66 (19) |
| Mean daily maximum °F (°C) | 33.8 (1.0) |
33.5 (0.8) |
33.7 (0.9) |
36.8 (2.7) |
40.2 (4.6) |
43.9 (6.6) |
45.1 (7.3) |
48.8 (9.3) |
50.7 (10.4) |
45.4 (7.4) |
39.1 (3.9) |
35.3 (1.8) |
40.5 (4.7) |
| Mean daily minimum °F (°C) | 28.4 (−2.0) |
27.9 (−2.3) |
28.3 (−2.1) |
29.2 (−1.6) |
31.8 (−0.1) |
36.9 (2.7) |
40.2 (4.6) |
46.0 (7.8) |
45.0 (7.2) |
39.3 (4.1) |
33.1 (0.6) |
29.6 (−1.3) |
34.6 (1.4) |
| Record low °F (°C) | 6 (−14) |
4 (−16) |
5 (−15) |
2 (−17) |
14 (−10) |
23 (−5) |
34 (1) |
38 (3) |
33 (1) |
26 (−3) |
15 (−9) |
7 (−14) |
2 (−17) |
| Average precipitation inches (mm) | 2.52 (64) |
2.02 (51) |
2.04 (52) |
1.79 (45) |
1.86 (47) |
1.84 (47) |
2.76 (70) |
3.45 (88) |
2.92 (74) |
3.70 (94) |
3.79 (96) |
3.04 (77) |
31.73 (805) |
| Average snowfall inches (cm) | 16.5 (42) |
14.4 (37) |
11.1 (28) |
5.0 (13) |
1.2 (3.0) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.6 (1.5) |
8.8 (22) |
16.4 (42) |
74 (188.5) |
| Average precipitation days (≥ 0.01 inch) | 22 | 20 | 20 | 17 | 16 | 14 | 15 | 17 | 18 | 22 | 23 | 23 | 227 |
| Source: WRCC[3] | |||||||||||||
References
- Shemya Island: Block 1147, Census Tract 1, Aleutians West Census Area, Alaska United States Census Bureau
- ^ Bergsland, K. (1994). Aleut Dictionary. Fairbanks: Alaska Native Language Center.
- ^ Northwest Airlines nwa.com - About Northwest - NWA Up Close
- ^ "SHEMYA USAF BASE, ALASKA (508419)". Western Regional Climate Centre. November 2011. Retrieved 2011-11-06.
{{cite web}}: Check date values in:|year=/|date=mismatch (help)
External links
- Web site about Shemya
- Briefing about Shemya
- "A Tale of Two Airplanes" by Kingdon R. "King" Hawes, Lt Col, USAF (Ret.)