春天的天氣,氣候,氣溫.....

春天既天氣狀況（英文）



Seasons



Temperate


Spring


Summer


Autumn


Winter







Spring is one of the four seasons of temperate zones, the transition from winter into summer. Astronomically, some Western countries consider spring to begin with the spring equinox (around March 20 in the Northern Hemisphere, and September 23 in the Southern Hemisphere), and ends with the summer solstice (around June 21 in the Northern Hemisphere and December 21 in the Southern Hemisphere). Such conventions are by no means universal, however. In Chinese astronomy, for example, the vernal equinox instead marks the middle of spring, which begins around the time of Lichun (around February 4). In the Irish Calendar it is counted as the whole months of February, March and April. In meteorology, it is (also by convention) instead counted as the whole months of March, April, and May in the Northern Hemisphere and September, October, and November in the Southern Hemisphere.
As in summer, the axial tilt of the Earth is toward the Sun, and daylight hours are greater than or equal to 12 hours and rapidly increasing (especially in higher latitudes). The hemisphere begins to warm significantly, causing new plant growth to spring forth, giving the season its name (see Effect of sun angle on climate). Snow (if any) begins to melt, and rivers and streams swell with runoff and spring rains. Most flowering plants bloom this time of year, in a long succession beginning even when snow is still on the ground, and continuing into early summer. In normally snowless areas, "spring" may begin as early as February during warmer years, with subtropical areas having very subtle differences, and tropical ones none at all. Subarctic areas may not see "spring" at all until May or even June, or December in the outer Antarctic.


圖片參考：http://upload.wikimedia.org/wikipedia/en/thumb/a/ae/V%C3%A5ren_%281907%29_av_Carl_Larsson.jpg/200px-V%C3%A5ren_%281907%29_av_Carl_Larsson.jpg



圖片參考：http://en.wikipedia.org/skins-1.5/common/images/magnify-clip.png
Carl Larsson, Våren (The Spring), 1907


圖片參考：http://upload.wikimedia.org/wikipedia/commons/thumb/5/57/Fr%C3%BChling_bl%C3%BChender_Kirschenbaum.jpg/300px-Fr%C3%BChling_bl%C3%BChender_Kirschenbaum.jpg



圖片參考：http://en.wikipedia.org/skins-1.5/common/images/magnify-clip.png

Severe weather most often occurs during the spring, when warm air begins to invade from lower latitudes while cold air is still pushing from the polar regions. Flooding is also most common in and near mountainous areas during this time of year due to snowmelt, many times accelerated by warm rains. In the United States, Tornado Alley is most active by far this time of year, especially since the Rocky Mountains prevent the surging hot and cold airmasses from spreading westward and instead force them directly at each other. Besides tornados, supercell thunderstorms can also produce dangerously large hail and very high winds, for which a severe thunderstorm warning or even tornado warning is usually issued. Often, spring storms trigger dozens of warnings, one right after the other, often simultaneously along a line hundreds of miles or kilometers long. Even more so than winter, the jet streams play an important role in severe weather in the springtime.
The hurricane season officially begins in late spring, on May 15 in the northeastern Pacific, and June 1 in the northern Atlantic. Before these dates, hurricanes are almost unheard of and even tropical storms are rare, one of the earliest ever being Tropical Storm Ana in mid-April 2003. Even in June, hurricanes are uncommon.
Springtime is seen as a time of growth, renewal, of new life (both plant and animal) being born, and of the cycle of life once again starting. It is also used more generally as the start of better times, as in Prague Spring.

[edit] External links


圖片參考：http://upload.wikimedia.org/wikipedia/en/thumb/4/4a/Commons-logo.svg/45px-Commons-logo.svg.png

Wikimedia Commons has media related to:
Spring

"Spring of animals and plants in Finland" by Northern Nature Project
Why Has Date Changed for Start of Spring? by SPACE.com

[edit] See also

Spring Day




Seasons of the north and south temperate zones



Spring - Summer - Autumn - Winter
Retrieved from "http://en.wikipedia.org/wiki/Spring_%28season%29"

Category: Spring


希望可以幫到你
圖片參考：http://hk.yimg.com/i/icon/16/1.gif
!

氣象
由於熱空氣開始北移，而冷空氣還往往依然徘徊，此外土地、水域與空氣溫度上升的速度不同，春季在地球上許多地方是最多雨的季節。在中國江南地區有著名的黃梅天氣，在歐洲時常有很強的風暴，在北美洲往往出現龍捲風。

中國地區的氣候變化
北方多數會出現大風天氣。

物候


圖片參考：http://upload.wikimedia.org/wikipedia/commons/thumb/e/e1/Prunus_serrulata_2005_spring_025.jpg/180px-Prunus_serrulata_2005_spring_025.jpg



圖片參考：http://zh.wikipedia.org/skins-1.5/common/images/magnify-clip.png

在春季，地球的北半球開始傾向太陽，受到越來越多的太陽光直射，因而氣溫開始升高。隨著冰雪消融，河流水位上漲。春季植物開始發芽生長，許多鮮花開放。冬眠的動物蘇醒，許多以卵過冬的動物孵化，鳥類開始遷徙，離開越冬地向繁殖地進發。許多動物在這段時間里發情，因此中國也將春季稱為「萬物復甦」的季節。春季氣溫和生物界的變化對人的心理和生理也有影響。

對農業的影響
對農民來說，春季是播種許多農作物的季節。 在春季，地球的北半球開始傾向太陽，受到越來越多的太陽光直射，因而氣溫開始升高。隨著冰雪消融，河流水位上漲。春季植物開始發芽生長，許多鮮花開放。冬眠的動物蘇醒，許多以卵過冬的動物孵化，鳥類開始遷徙，離開越冬地向繁殖地進發。許多動物在這段時間里發情，因此中國也將春季稱為「萬物復甦」的季節。春季氣溫和生物界的變化對人的心理和生理也有影響。

節氣

立春 太陽位於黃經315°，2月2-5日交節。
雨水 太陽位於黃經330°，2月18-20日交節。
驚蟄 太陽位於黃經345°，3月5-7日交節。
春分 太陽位於黃經0°，3月20-22日交節。
清明 太陽位於黃經15°，4月4-6日交節。
穀雨 太陽位於黃經30°，4月19-21日交節。






編輯
二十四節氣



春季：立春 雨水 驚蟄 春分 清明 穀雨
夏季：立夏 小滿 芒種 夏至 小暑 大暑
秋季：立秋 處暑 白露 秋分 寒露 霜降
冬季：立冬 小雪 大雪 冬至 小寒 大寒



圖片參考：http://upload.wikimedia.org/wikipedia/zh/thumb/0/02/Kastanien.jpg/180px-Kastanien.jpg