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In the history of artificial intelligence, an AI winter is a period of reduced funding and interest in artificial intelligence research. [1] The field has experienced several hype cycles , followed by disappointment and criticism, followed by funding cuts, followed by renewed interest years or even decades later.
The conversion of sulfur dioxide to sulfuric acid, which condenses rapidly in the stratosphere to form fine sulfate aerosols. A volcanic winter is a reduction in global temperatures caused by droplets of sulfuric acid obscuring the Sun and raising Earth's albedo (increasing the reflection of solar radiation) after a large, sulfur-rich, particularly explosive volcanic eruption.
Trees are given extra support by bamboo poles with ropes attached to limbs; whereas, shrubs are often tied tightly around the circumference. Yukitsuri is a common sight in Kanazawa and Kenrokuen Garden during the winter months. [1] Yukitsuri can also be seen in Hibiya Park, Jindai Botanical Garden, Yoyogi Park and Inokashira Park in Tokyo. [2]
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Winter smoke in Shanghai, China, with a clear border-layer for the vertical air-spread (1993). A temperature inversion in Bratislava , Slovakia , viewing the top of Nový Most (2005). Inversion-created smog in Nowa Ruda, Poland, 2017 Temperature inversion phenomenon in the early morning near Tawau , Sabah , Malaysia where smoke that was emitted ...
The winter solstice occurs during the hemisphere's winter. In the Northern Hemisphere, this is the December solstice (December 21 or 22) and in the Southern Hemisphere, this is the June solstice (June 20 or 21). Although the winter solstice itself lasts only a moment, the term also refers to the day on which it occurs.
Dōngzhì or Tōji (Chinese and Japanese: 冬至; Korean: 동지(Dongji); Vietnamese: Đông chí; lit. winter's extreme) is the 22nd solar term, and marks the winter solstice. It begins when the Sun reaches the celestial longitude of 270° (around 23 December) and ends when the Sun reaches the longitude of 285° (around 5 January).
Generation III Extended Cold Weather Clothing System ECWCS levels 7 (left) and 5 (right). The Extended Cold Weather Clothing System (ECWCS / ˈ ɛ k w æ k s /) is a protective clothing system developed in the 1980s by the United States Army Natick Soldier Research, Development and Engineering Center, Natick, Massachusetts.