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Climate patterns linked in Amazon, North and South America(图)
Climate patterns Amazon North South America
2020/10/16
Researchers at the University of Arkansas have established a link between climate patterns in the Amazon and large parts of North and South America using a newly developed tree-ring chronolo...
Researchers set to take to the air above the Arctic and New York City(图)
air above Arctic New York City
2020/10/10
Atmospheric scientists are embarking on two new research projects supported by the U.S. National Science Foundation that involve using sophisticated planes to understand the atmospheric chemistry and ...
Unexpected wildfire emissions impact air quality worldwide(图)
Unexpected wildfire emissionst air quality worldwide
2020/10/30
In lab studies of wildfire, nitrous acid seems to be a minor actor, often underrepresented in atmospheric models. But in the real-world atmosphere during wildfires, the chemical plays a leading role.I...
ECMWF二氧化碳监测项目有望在2023年完成
ECMWF 二氧化碳 监测项目 2023年
2020/10/21
近日,欧洲中期天气预报中心(ECMWF)项目协调人透露,一项与人类活动有关的全球二氧化碳排放量监测和估算能力的项目——二氧化碳人类排放(CHE)项目正在建立,该项目由欧盟资助,按计划将在2023年前交付原型系统。该项目汇集了来自欧洲8个国家22个合作组织,为期三年并由ECMWF负责协调。
Fast-warming Arctic transitioning to new climate state(图)
Fast-warming Arctic transitioning new climate state
2020/9/25
The fast-warming Arctic has started to transition from a predominantly frozen state into an entirely different climate, according to a comprehensive new study of Arctic conditions.Weather patterns in ...
挪威的朗伊尔城,位于斯瓦尔巴群岛上、朗伊尔河谷的下游,这里地处北纬78度,距离北极点只有1300公里,是世界上距离北极最近的城市。曾经,这里的冰川覆盖率高达约60%,岛上有白雪皑皑的山脉和绵延不绝的峡湾。如今,全球变暖正在对斯瓦尔巴群岛产生巨大的影响。根据挪威的气象数据,过去30年来,该岛冬季平均气温上升了10摄氏度,这对当地整个生态系统造成了破坏。气温正在飙升,海冰正在减少。许多专家认为,北极正...
Astronomers may have found a signature of life on Venus(图)
Astronomers signature life Venus
2020/9/18
The astronomers detected a spectral fingerprint, or light-based signature, of the gas phosphine in Venus' atmosphere. Scientists had previously shown that if this poisonous gas were detected on a rock...
日本开展全球首次海上二氧化碳捕获项目
日本 二氧化碳捕获 项目
2020/10/21
日本航运巨头川崎汽船将进行全球首次海上碳捕获项目。川崎宣布,他们将与三菱造船、日本船级社合作,计划在其运煤船上部署一个小规模二氧化碳捕获设备。
Reliability of El Niño simulation matters for predicting future climate(图)
Reliability El Niñ o simulation predicting future climate
2020/9/11
A new U.S. National Science Foundation-funded study led by University of Hawaii at Mānoa researchers, published in the journal Nature Communications, has revealed that correctly simulating o...
Research links ancient Southeast Asia megadrought to drying in Africa(图)
ancient Southeast Asia megadrought drying in Africa
2020/9/11
Evidence found in caves in Laos helps tell a story about a connection between the end of the Green Sahara, when heavily vegetated Northern Africa became a hyper-arid landscape, and a previou...
ECMWF推进欧洲极端天气次季节-季节可预测性研究
ECMWF 欧洲 天气 预测性
2020/10/21
次季节-季节预测是无缝隙预测方法的核心组成部分。欧洲中期天气预报中心(ECMWF)在2016年出台的未来十年战略规划中就包括次季节-季节可预测性目标,其中除了计划将高影响天气的集合预报时效提前至两周外,还决定到2025年将大尺度天气系统和多系统之间转变的预报时间提前至4周。
Atmospheric scientists study fires to resolve ice question in climate models(图)
Atmospheric scientists fires resolve ice question climate models
2020/9/4
When fossil fuel or biomass burns, soot -- also known as black carbon -- fills the air. Black carbon is an important short-term climate driver because it absorbs solar energy and can affect the format...
世界气象组织:未来数月内或发生微弱拉尼娜现象
世界气象组织 微弱 拉尼娜现象
2020/8/28
世界气象组织2020年8月27日公布的“全球季节性气候通报”显示,今年9月至11月期间发生微弱拉尼娜现象的概率为60%。拉尼娜是指太平洋赤道海域海水温度大范围持续异常降低的现象。
物种可通过减少繁殖应对气候事件
物种 减少繁殖 应对气候事件
2020/8/27
美国科学家团队发布一项生态学报告称,委内瑞拉和马来西亚的热带鸣禽在干旱期间会减少繁殖,平均长期生存率更高的物种减少得更多。这些结果表明,寿命长的物种或能通过减少在这些年份里的繁殖,缓解胁迫性气候事件所造成的影响。研究相关论文24日发表于英国《自然·气候变化》杂志。气候变率包括干旱频率和强度,预计会随未来变暖加剧而增加。一般来说,寿命长的物种繁殖率更低,意味着它们更难从气候事件导致的种群死亡中恢复。...
2020年或将成史上最热年份(图)
中国科学院兰州文献情报中心 2020年 最热
2020/8/27
据《科学美国人》官方网站报道,美国国家海洋和大气局最新计算数据表明,截至7月底,2020年温度已高居史上第二位,以0.07华氏度的差距仅次于2016年,来自不同团队的研究人员也给出高概率结果,2020年或将超越2016年成为史上最热年份。