影响一地方的降水量多少的因素,主要有

2025-02-13 07:21:00
推荐回答(2个)
回答1:

影响降水素许,具体:(希望帮助) . 海陆位置 般水,距海越近区,受海洋影响较,距海越远,海洋水汽难达,降水较少;所降水布普遍规律沿海,内陆少.比我降水布规律东南沿海向西北内陆递减,及西北干旱半干旱区东部向西降水逐渐减少等都受距海远近影响. 二. 形 一. 山脉走向与降水.山脉走向海洋水汽阻挡作用引导作用,山脉走向与海洋水汽 向垂直,阻挡水汽进入,使陆内侧降水明显减少,北美陆西部,由于科迪勒拉山系南北纵列,与自太平洋湿润西风气流垂直,阻挡西风进入,使降水集西部海岸,东部区难受影响;欧洲西部区,阿尔卑斯山脉东西走向,与西风气流向致,利于海洋湿润气流进入,降水布较广泛,海洋性特征明显.我西北区除深居内陆外,受山岭层层阻挡,海洋水汽难进入,使其更加干旱. 二.迎风坡、背风坡与降水.海洋湿润气流运行程,遇山脉阻挡,沿着迎风坡升,定高度冷却达饱状态,现凝结降雨,即形雨,该气流越山顶,沉程,温度断升高,饱水汽含量断降低,现干热气,即雨影区.山降水般比平 ,山促使气流升条件,平没,降水较少.南美南段,西部西风迎风坡,降水形海洋性气候,东部位于背风坡,降水少,形独特沙漠气候;再我福建西部武夷山降水要比东部沿海区;台湾东部比西部,海南岛东部比西部. 三.形类型与降水.同形气流运行同作用,降水布同.平原形利于海洋水汽进入,带丰富水汽,降水几率较,我东部平原区,欧洲部,美东部;山则迎风坡定高度降水较,背风坡较少,河谷带由于势低,温度高降水少,横断山区;盆由于形封闭,周围高山环绕,海洋水汽难进入,降水较少,塔木盆;高原势高,海洋水汽难爬高原面形降水,所高原降水,东非高原,青藏高原,巴西高原等降水都. 三. 气压带 全球气压带管热力原形力原形,高气压带盛行沉气流,沉程气温断升高,水汽饱含量断降低,空气越越干燥,能形降水,晴朗气.热带沙漠区,全副热带高压控制,盛行沉气流,炎热干燥;我江流域盛夏伏旱气形;南极区少与带;低气压控制区,盛行升气流,升冷却容易达饱状态,往往凝结降雨,形雨区,赤道区,全处低气压控制,终雨. 四. 风带 全球风带包括极东风带、西风带、信风带,降水影响较西风带信风带,风带降水影响主要通海洋水汽带陆形降水,根据风带与陆关系,迎风岸背风岸,迎风岸受风带海洋带水汽影响,降水较,背风岸风陆吹向海洋空气干燥,降水少;纬度陆西岸西风迎风岸,降水,欧洲西部,南北美洲西部海岸;低纬度陆东岸信风迎风岸,降水,马达加斯加东部,澳利亚东北部,巴西高原东南热带雨林气候形都与信风关,西部热带沙漠气候形,热带草原气候干季则与信风陆吹向海洋关. 五. 季风 季风气候区,冬夏季风性质同,降水影响同.夏季风海洋吹向 陆,量海洋水汽带陆,能形降水气;冬季风陆吹向海洋,性质干燥,般形降水,气晴朗.东亚季风区,夏季高温雨,冬季寒冷干燥;南亚季风区,西南季风影响季节形雨季,东北季风控制候形旱季. 六. 气旋、锋面 特殊气运形降水重要素,气旋控制,盛行旋转升气流,往往能达饱状态,形降水,纬度区气旋雨,台风、飓风带量降水;冷暖性质同气流交汇区,往往形锋面雨,锋面附近暖空气升达饱状态,形降水.我东部区降水锋面雨主,四、5月份南部沿海形暖锋降水,陆、漆月份江流域形准静止锋降水,漆、吧月份华北、东北形冷锋降水;副极东风西风相汇形极锋,形锋面雨. 七. 垫面 垫面局部区降水产影响,主要通改变气水汽含量影响,表植覆盖率高,或者水面宽广,增蒸发量,空气湿度增,增加降水量,反,面植破坏,水面减少,空气变干燥,导致降水减少; 沿海区海岸曲折暖流经降水增.比,沙漠区表干燥,增发量,降水少,排干沼泽湖泊区,降水减少,森林区,湖泊型水库附近降水明显增. 八. 洋流 洋流寒流暖流,暖流增温增湿作用,寒流降温减湿作用.欧洲海洋性气候形,马达加斯加东部,澳利亚东北部,巴西高原东南热带雨林气候形都与沿岸暖流关,热带沙漠气候形都与寒流关系密切,南美西海岸阿塔卡玛沙漠世界干燥,狭,布纬度低秘鲁寒流功劳. 九. 类 类主要通改变垫面状况影响降水,植树造林,恢复植,修建水库水利工程,退田湖,扩水面湿都使空气湿度增加,降水增;反,乱砍滥伐,度放牧,破坏植,围湖造田,垦排干沼泽使空气湿度减,降水减少,气候陆性增强.另外,工降雨干旱季节增加局部区降水效形式. ,影响某区降水素往往面,各素间相互发作用使降水更加复杂,我析候要找其主导素,要综合角度全面析,才能搞清某区降水类型特征;比欧洲西部海洋性气候降水特征形,受海陆位置、西风、北西洋暖流、平原与山脉东西走向、势低平、海岸曲折等素综合作用

回答2:

主要是地面蒸发量和高空气温水平是否与形成雨水相匹配。比如江南地区水网密布,空气湿度很大,遭遇高空寒流就容易形成降水;西北地区不仅水资源匮乏,就连植物也稀稀拉拉空气本来就干燥,即便遇到寒流也不容易形成降水;东北地区虽然水资源相对南方要少得多,但植被繁茂空气湿度相对西北大,降水机会也就大了。比如前些年也发生了洪灾,可从来没听说过西北地区暴雨成灾发大水吧!

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