寒带







Antistub.svg
 本条目需要擴充。（2018年6月2日）
请協助改善这篇條目，更進一步的信息可能會在討論頁或扩充请求中找到。请在擴充條目後將此模板移除。



寒帶作戰中的士兵


寒带分為南寒带，北寒带。南寒带是南极圈（南緯66.5度）以内的區域，北寒带是北极圈（北緯66.5度）以内區域。




目录






  • 1 南寒带


  • 2 北寒带


  • 3 天文


  • 4 参考文献


  • 5 參見





南寒带


在南寒带，南极洲大陆完全被冰覆盖，四周受到極地東風带的强劲吹拂。南寒带气候异常恶劣，保持着地球上的最低温记录和最强风记录。在南极洲植物稀少，仅有苔藓、藻类、地衣和几种显花植物，而且大都生长在南极圈以外的南极半岛。主要集中在南大洋。



北寒带


北寒带主要地区是北冰洋，大片的海洋被冰层覆盖，陆地有很多都是冻土，属于冻土带。分布有苔原植物的称为苔原带。即使是夏季北寒带也比较冷。北寒带的植物分布比南寒带略多，有地衣3000多种，苔藓500多种，开花植物有900种。梅勒於是極圈內降水最多的地方，年降水量達2069毫米。



天文


寒带的显著特点是纬度高，由於地球是球體，所以南北極日照角度低。在两极地区还会见到极光，而这些地区的臭氧层有空洞，紫外线辐射严重。



参考文献





參見



  • 苔原气候

  • 极地冰原气候













-

Popular posts from this blog

Dragon Quest

Image
This article is about the video game franchise. For the first game in the series, see Dragon Quest (video game). For other uses, see Dragon Quest (disambiguation). "Dragon Warrior" redirects here. For other uses, see Dragon Warrior (disambiguation). Not to be confused with DragonQuest. Dragon Quest Genre(s) Role-playing Developer(s) Game design/scenario: Armor Project Character/monster design : Bird Studio Main series programming: ArtePiazza, Chunsoft, Heartbeat, Level-5, Square Enix Publisher(s) Square Enix (formerly Enix) Nintendo Creator(s) Yuji Horii Artist(s) Akira Toriyama Composer(s) Koichi Sugiyama Platform(s) MSX, Famicom/NES, Super Famicom/Super NES, Game Boy Color, Game Boy Advance, Nintendo DS, mobile phone, Android, arcade, PlayStation, PlayStation 2, Wii, Nintendo 3DS, Wii U, Nintendo Switch, Microsoft Windows, iOS, PlayStation 3, PlayStation 4, PlayStation Vita Platform(s) of origin Famicom/NES First release D
Read more

AM broadcasting

Image
"AM Radio" redirects here. For the song by Everclear, see AM Radio (song). For the American musical group, see AM Radio (band). AM broadcasting is a radio broadcasting technology, which employs amplitude modulation (AM) transmissions. It was the first method developed for making audio radio transmissions, and is still used worldwide, primarily for medium wave (also known as "AM band") transmissions, but also on the longwave and shortwave radio bands. The earliest experimental AM transmissions were begun in the early 1900s. However, widespread AM broadcasting was not established until the 1920s, following the development of vacuum tube receivers and transmitters. AM radio remained the dominant method of broadcasting for the next 30 years, a period called the "Golden Age of Radio", until television broadcasting became widespread in the 1950s and received most of the programming previously carried by radio. Subsequently, AM radio's audiences have a
Read more

Metroid

Image
This article is about the series. For the first game in the series, see Metroid (video game). For the eponymous alien species, see Metroid (fictional species). Not to be confused with Meteoroid. Metroid Logo as used with Metroid Prime 3: Corruption and Metroid Prime: Trilogy Genre(s) Action-adventure Developer(s) Nintendo R&D1, Intelligent Systems, Retro Studios, Nintendo Software Technology, Team Ninja, Next Level Games, MercurySteam Publisher(s) Nintendo Creator(s) Satoru Okada Gunpei Yokoi Hiroji Kiyotake Yoshio Sakamoto Platform(s) Nintendo Entertainment System, Game Boy, Super NES, Game Boy Advance, GameCube, Nintendo DS, Wii, Nintendo 3DS, Nintendo Switch Platform(s) of origin Family Computer Disk System First release Metroid August 6, 1986 Latest release Metroid: Samus Returns September 15, 2017 Metroid [a] is a science fiction action game franchise created by Nintendo. The series is primarily produced by the company&#
Read more