青年科学家因创造性使用卫星资料获得表彰

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中国出生的科学家张江龙(译音)荣获美国国家海洋和大气管理局戴维•约翰逊奖。该奖奖励创造性地使用环境卫星资料的青年科学家。
美国国务院国际信息局(IIP)《美国参考》Lauren Monsen 从华盛顿报道,3月30日,美国国家海洋和大气管理局(National Oceanic and Atmospheric Administration)向中国出生的气象学家和大气学科学家Jianglong Zhang(音译,张江龙)颁发奖状,进一步确定他作为美国最有影响的青年科学家之一的地位。
美国商务部(U.S. Department of Commerce)下属的美国国家海洋和大气管理局向张江龙颁发戴维·约翰逊奖(David S. Johnson Award)。该奖始于1999年,用于表彰青年科学家创造性地使用环境卫星资料,以该局负责卫星和信息服务的第一任助理局长的名字命名。获奖科学家们为观察卫星提供的资料开发新用途,有助于更好地预测大气层、海洋及陆地的变化。
张江龙来自中国华中地区,现为北达科他大学(University of North Dakota)大气科学专业助理教授。他获奖是因为他开发了使用卫星测量资料的新方法,用于预测大气层中浮质颗粒对气候潜在的影响。
3月9日,张江龙在北达科他大学研究生院接受伊丽莎白·豪厄尔(Elizabeth Howell)采访,介绍了浮质颗粒对云层形成以及气候变化的影响。
他说:“气候变化是一个众所周知的话题,然而许多人或许没意识到气候系统是复杂的,不同因素在相互影响。浮质颗粒的影响是最重要也是最鲜为人知的因素之一。”
张江龙说,通过增加云层的亮度,使云层将更多的太阳光折射回大气层,可增加浮质的密度,减少照射到地面的阳光,从而使地面温度降低。
他指出,减少大气层中的浮质对环境有明显的好处。
例如,在19世纪和20世纪初期,伦敦冬天一般用煤取暖。张江龙说:“燃煤产生了大量的烟雾。在当地气候条件的作用下,烟颗粒物质、硫酸浮质物及其他气态物质形成了著名的历史现象‘伦敦雾’。1952年那场 ‘大雾 ’夺去4,000多人的生命,此后伦敦人才认识到问题的严重性,于1956年通过了洁净空气法。 ”
张江龙说,浮质物不同于温室气体。他说:“浮质特征在时空上变化很大,因此浮质研究,包括浮质和气候研究工作非常有意义,但开展起来不容易。”
除了开发环境卫星资料的新用途,他还主持开发了世界第一个浮质同化操作系统。美国海军舰队数值气象学和海洋学中心(U.S. Navy Fleet Numerical Meteorology and Oceanography Center)正在使用这个系统。
2009年,张江龙荣获青年科学家和工程师总统奖(Presidential Early Career Award for Scientists and Engineers),成为美国一百名优秀青年科学家之一。他于2004年获亨茨维尔亚拉巴马大学(University of Alabama in Huntsville)大气学博士学位和计算机科学硕士学位,1992年获得北京大学大气物理学理科学士学位。
美国国家海洋和大气管理局负责卫星和信息服务的助理局长玛丽·基扎 (Mary Kicza)说,这一奖项表彰像张博士这样的青年科学家在使用卫星资料方面做出的杰出贡献,这直接造福于社会。她说:“我们对他已完成以及今后的工作感到振奋。”
有关青年科学家和工程师总统奖的详情见白宫网站。
Read more:
http://iipdigital.usembassy.gov/st/chinese/article/2012/04/201204184082.html#ixzz1sS81BRzU
Young Scientist Honored for Innovations in Satellite Data
By Lauren Monsen | Staff Writer | 28 March 2012
Chinese-born scientist Jianglong Zhang will receive the NOAA David S. Johnson Award, which honors young scientists for their innovative use of environmental satellite data.
Washington — Jianglong Zhang, an award-winning meteorologist and atmospheric scientist, is being honored March 30 by the National Oceanic and Atmospheric Administration (NOAA), cementing his status as one of the most decorated young scientists in the United States.
NOAA, a branch of the U.S. Department of Commerce, is presenting Zhang with the NOAA David S. Johnson Award, which recognizes young scientists for their innovative use of environmental satellite data. First presented in 1999, the award is named after the first assistant administrator for NOAA’s Satellite and Information Service and honors professional scientists who create new uses for observational satellite data to better predict atmospheric, oceanic and terrestrial conditions.
Zhang, a native of central China who holds the position of assistant professor in atmospheric sciences at the University of North Dakota, was cited for developing new techniques that use satellite measurements to forecast the potential climate implications of aerosol particles in the atmosphere.
In a March 9 interview with Elizabeth Howell at The Graduate School of the University of North Dakota, Zhang described how aerosols affect cloud formation and influence climate change.
“Climate change is a well-known topic to the public,” he said. “Yet many may not be aware that the climate system is complex, with various factors interacting with each other. The effect of aerosols is one of the most important and least understood factors.”
By making clouds brighter, which ensures that clouds reflect more sunlight back into space, increased aerosol concentrations “can result in less sunlight reaching the ground” and thereby reduce surface temperatures, said Zhang.
There are clear environmental benefits to reducing aerosols in the atmosphere, he added.
In the 19th and early 20th centuries, for example, coal was widely used for winter heating in London. “Large quantities of smoke were generated from coal burning,” Zhang said. “Smoke particles, sulfate aerosols and other gaseous constituents, mixing with the local metrological conditions, formed a famous historical phenomenon called ‘London fog.’ Not until the ‘great smog’ of 1952 that killed more than 4,000 people did the Londoners realize the seriousness of the problem. A clean-air act was passed in 1956.”
Aerosols are “different from greenhouse gases,” said Zhang. “The high spatial and temporal variations of aerosol properties make aerosol studies, including aerosol and climate research efforts, very interesting yet difficult tasks.”
Besides establishing new uses for environmental satellite data, Zhang led the development of the world’s first operational aerosol assimilation system, which is being used by the U.S. Navy Fleet Numerical Meteorology and Oceanography Center.
In 2009, Zhang received the Presidential Early Career Award for Scientists and Engineers as one of America’s top 100 young scientists. He received both his doctorate in atmospheric science and his Master of Science in computer science at the University of Alabama in Huntsville in 2004, and his Bachelor of Science in atmospheric physics from Peking University in 1992.
The NOAA award “highlights the exemplary work young scientists like Dr. Zhang are performing with satellite data" that directly benefits society, said Mary Kicza, assistant administrator for NOAA’s Satellite and Information Service. “We are excited about the work he’s already done and all that lies ahead.”
Read about the Presidential Early Career Awards for Scientists and Engineers on the White House website.
Read more:
http://iipdigital.usembassy.gov/st/english/article/2012/03/201203282918.html#ixzz1sS82rLR6