太陽對(duì)地球的影響課件-高一上學(xué)期地理人教版必修1

1、回顧1.天體2.天體系統(tǒng)3.太陽系的八大行星4.普遍性5.特殊性太陽對(duì)地球的影響第一章 行星地球0102為地球提供能量太陽活動(dòng)的影響01PART ONE為地球提供能量巨大熾熱的氣體球主要成分是氫和氦表面溫度6000kt=T-T0(273.15K)能量來源核聚變關(guān)于太陽太陽源源不斷地以電磁波的形式向四周放射能量這種現(xiàn)象稱為太陽輻射太陽輻射光、熱資源生物的生長發(fā)育為地球提供能量水、大氣運(yùn)動(dòng)、生命活動(dòng)的主要?jiǎng)恿榈厍蛱峁┠芰烤S持著地表溫度煤炭、石油為地球提供能量能量來源能量來源直接影響間接影響萬物生長靠太陽為物質(zhì)循環(huán)提供動(dòng)力提供太陽能提供礦物燃料 太陽輻射對(duì)地球的影響提供光熱資源太陽輻射的重要影響：

2、1、太陽直接為地球提供了光、熱資源地球上的生物的生長發(fā)育離不開太陽2、太陽輻射維持著地表溫度是地球上的水、大氣運(yùn)動(dòng)和生命活動(dòng)的主要?jiǎng)恿?、為我們地球提供了能源資源，如太陽能、煤炭、石油活動(dòng)探究（1）到達(dá)大氣上界輻射的分布有什么規(guī)律？（2）熱帶雨林和亞寒帶針葉林生物量有什么差異？（3）前兩個(gè)問題的結(jié)論有沒有相關(guān)性？（4）描述這兩個(gè)地區(qū)的自然景觀差異。影響太陽輻射總量高低的因素1、緯度：一般情況下，緯度高低與太陽輻射量成反比。影響太陽輻射總量高低的因素2、地勢(shì)：海拔越高，空氣越稀薄，到達(dá)地面的太陽輻射量越大。影響太陽輻射總量高低的因素3、天氣狀況：云層厚度與太陽輻射成反比。天氣氣候干旱，晴天多，獲

3、得的太陽輻射總量大地勢(shì)海拔越高，空氣越稀薄，到達(dá)地面的太陽輻射量越大緯度緯度越低，太陽高度角越大，獲得的太陽輻射量多影響太陽輻射總量高低的因素中國年太陽輻射總量分布分布特點(diǎn)：高值中心低值中心02PART TWO太陽活動(dòng)影響地球太陽大氣層的結(jié)構(gòu)日冕色球光球光球?qū)佑萌庋劭梢杂^測(cè)到的太陽表面500km 平時(shí)所見太陽光基本都由光球發(fā)射出來色球?qū)用倒迳?，在日全食時(shí)或用特殊望遠(yuǎn)鏡幾千千米它發(fā)出的可見光不及光球的千分之一日冕層可延伸到幾個(gè)太陽半徑亮度僅為光球的百萬分之一太陽大氣層的結(jié)構(gòu)太陽大氣層的結(jié)構(gòu)太陽活動(dòng)1、太陽黑子：發(fā)生在光球表面溫度較低的地方的“黑斑點(diǎn)”太陽大氣經(jīng)常發(fā)生大規(guī)模的運(yùn)動(dòng)太陽活動(dòng)的類型2、

4、太陽耀斑：發(fā)生在色球?qū)颖砻婺芰勘l(fā)形成的“亮斑”太陽黑子耀斑（色球爆發(fā)）太陽風(fēng)太陽活動(dòng)Add your words here，according to your need to draw the text box size。ADD TITLEAdd your words here，according to your need to draw the text box size。ADD TITLE太陽活動(dòng)活動(dòng)通常，黑子活動(dòng)增強(qiáng)的年份也是耀斑頻繁爆發(fā)的年份。黑子區(qū)域之外的區(qū)域也是耀斑出現(xiàn)頻率最多的區(qū)域 太陽活動(dòng)對(duì)地球的影響1、干擾地球無線電短波通訊 太陽活動(dòng)對(duì)地球的影響2、產(chǎn)生磁暴現(xiàn)象3、產(chǎn)生極光

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