Udintsev

Udintsev is the collective name for a trio of islands located in the far south of the Pacific Ocean. They are named after the Udintsev Fracture Zone which they lie upon.

There are three islands:
 * Udintsev West
 * Udintsev Central
 * Udintsev East

Settlements
The Central Island is uninhabited save for laboratories for scientific research and an old whaling station.

Climate
Udintsev's climate is oceanic, cold and extremely windswept. Under the Köppen climate classification, Udintsev's climate is considered to be an ET or tundra climate, which is technically a form of polar climate, as the average temperature in the warmest month is below 10 °C (50 °F).[23] Comparable climates include the Aleutian Islands, Iceland, northern Kamchatka Peninsula, Labrador and Tierra del Fuego.

The average annual temperature is 4.9 °C (40.8 °F) with an annual range of around 6 °C (11 °F). The warmest months of the year include January and February, with average temperatures between 7.8 and 8.2 °C (46.0 and 46.8 °F).The coldest month of the year is August with an average temperature of 2.1 °C (35.8 °F). Annual high temperatures rarely surpass 20 °C (68 °F), while temperatures in winter have never been recorded below −10 °C (14 °F) at sea level.

Udintsev receives frequent precipitation, with snow throughout the year as well as rain. The mountains are frequently covered in snow but can thaw very quickly in rain. Over the course of several decades, many permanent glaciers have shown signs of retreat, with some smaller ones having disappeared completely.

The west coast receives almost continuous wind at an average speed of 35 km/h (22 mph), due to the islands' location in between the Roaring Forties and the Furious Fifties. Wind speeds of 150 km/h (93 mph) are common and can even reach 200 km/h (120 mph).

Waves up to 12–15 m (39–49 ft) high are common, but there are many sheltered places where ships can dock.

Due to the island group's southern latitude, it experiences a couple of weeks from December to early January in which there is no true night, only astronomical twilight.