注册 | 登录
||
亚马逊森林巨大的蒸腾能力显著改变了其上空的水汽含量,近期的研究表明,这种加湿作用是亚马逊从干季转为湿季的主要推动力。
相关研究论文“Rainforest-initiated wet season onset over the southern Amazon”已经发表在PNAS上。
链接: http://www.pnas.org/content/114/32/8481.long
值得一提的是,本研究的第一作者Jonathon S. Wright( http://www.cess.tsinghua.edu.cn/publish/ess/7687/2012/20120619141317866273695/20120619141317866273695_.html)系清华大学地球系统科学系的副教授。
Abstract
Although it is well established that transpiration contributes much of the water for rainfall over Amazonia, it remains unclear whether transpiration helps to drive or merely responds to the seasonal cycle of rainfall. Here, we use multiple independent satellite datasets to show that rainforest transpiration enables an increase of shallow convection that moistens and destabilizes the atmosphere during the initial stages of the dry-to-wet season transition. This shallow convection moisture pump (SCMP) preconditions the atmosphere at the regional scale for a rapid increase in rain-bearing deep convection, which in turn drives moisture convergence and wet season onset 2-3 mo before the arrival of the Intertropical Convergence Zone (ITCZ). Aerosols produced by late dry season biomass burning may alter the efficiency of the SCMP. Our results highlight the mechanisms by which interactions among land surface processes, atmospheric convection, and biomass burning may alter the timing of wet season onset and provide amechanistic framework for understanding how deforestation extends the dry season and enhances regional vulnerability to drought.
Archiver| 手机版| 科学网 ( 京ICP备07017567号-12 )
GMT+8, 2024-5-24 17:36
Powered by ScienceNet.cn
Copyright © 2007- 中国科学报社
聚圣源御赐小仵作演员表狼国的秘密读后感央视评五一调休成长没烦恼京东商城有假货绿萝算法康熙字典适合牛宝宝起名的字youjizzvids金宝宝起名软件哪个今年男起啥名清风起名网专业起名免费网站起名三才五格方法起名字女孩姓赵恶作剧之吻2演员表起点封禁小说名单最新更新动漫免费起名打分网页八字起名法完美世界动画金融公司英文起名大全小米向员工授股网游兄弟名字自助中餐加盟秦子越普姓女孩起名字大全装修起什么名字好吗异国色恋浪漫谭1梦见打篮球公文写作格式淀粉肠小王子日销售额涨超10倍罗斯否认插足凯特王妃婚姻让美丽中国“从细节出发”清明节放假3天调休1天男孩疑遭霸凌 家长讨说法被踢出群国产伟哥去年销售近13亿网友建议重庆地铁不准乘客携带菜筐雅江山火三名扑火人员牺牲系谣言代拍被何赛飞拿着魔杖追着打月嫂回应掌掴婴儿是在赶虫子山西高速一大巴发生事故 已致13死高中生被打伤下体休学 邯郸通报李梦为奥运任务婉拒WNBA邀请19岁小伙救下5人后溺亡 多方发声王树国3次鞠躬告别西交大师生单亲妈妈陷入热恋 14岁儿子报警315晚会后胖东来又人满为患了倪萍分享减重40斤方法王楚钦登顶三项第一今日春分两大学生合买彩票中奖一人不认账张家界的山上“长”满了韩国人?周杰伦一审败诉网易房客欠租失踪 房东直发愁男子持台球杆殴打2名女店员被抓男子被猫抓伤后确诊“猫抓病”“重生之我在北大当嫡校长”槽头肉企业被曝光前生意红火男孩8年未见母亲被告知被遗忘恒大被罚41.75亿到底怎么缴网友洛杉矶偶遇贾玲杨倩无缘巴黎奥运张立群任西安交通大学校长黑马情侣提车了西双版纳热带植物园回应蜉蝣大爆发妈妈回应孩子在校撞护栏坠楼考生莫言也上北大硕士复试名单了韩国首次吊销离岗医生执照奥巴马现身唐宁街 黑色着装引猜测沈阳一轿车冲入人行道致3死2伤阿根廷将发行1万与2万面值的纸币外国人感慨凌晨的中国很安全男子被流浪猫绊倒 投喂者赔24万手机成瘾是影响睡眠质量重要因素春分“立蛋”成功率更高?胖东来员工每周单休无小长假“开封王婆”爆火:促成四五十对专家建议不必谈骨泥色变浙江一高校内汽车冲撞行人 多人受伤许家印被限制高消费