A North American Arctic Aerosol Climatology using Ground-based Sunphotometry
A North American Arctic Aerosol Climatology using Ground-based Sunphotometry
复制标题
使用地面太阳光度测量的北美北极气溶胶气候学
作者：
A. Bokoye;A. Royer;N. O'Neill;L. Mcarthur
北极被称为全球范围内检测气候变化和大气污染的关键地区。在本文中，我们描述了一个名为 AEROCAN 的新加拿大太阳光度计网络，其主要任务是建立大气气溶胶的气候学。该网络是 AERONET 的一部分，AERONET 是由 NASA 戈达德太空飞行中心管理的全球联合太阳光度计网络。通过一些站的气溶胶光学特性和大气可降水汽含量的多年变化的例子，特别是自 1994 年以来阿拉斯加的 Bonanza Creek，说明了来自 AERONET/AEROCAN 网络的太阳光度计数据在监测北极气溶胶方面的潜力。尽管其空间密度稀疏，但该网络仍然是监测北极气溶胶时空变化的重要工具。它还代表了独立气溶胶数据的重要来源，我们认为应该在北部地区进一步开发这些数据，以提高我们对大气气溶胶如何影响全球气候的了解。
The Arctic is known as a key area for the detection of climate changes and atmospheric pollution on a global scale. In this paper we describe a new Canadian sunphotometer network called AEROCAN, whose primary mandate is to establish a climatology of atmospheric aerosols. This network is part of AERONET, the worldwide federated sunphotometer network managed by the NASA Goddard Space Flight Center. The potential of sunphotometer data from the AERONET/AEROCAN network for monitoring of Arctic aerosols is illustrated, using examples of the multiyear variation of aerosol optical properties and atmospheric precipitable water vapour content at some stations, and in particular at Bonanza Creek, Alaska since 1994. Despite its sparse spatial density, the network represents an important tool for monitoring the spatio-temporal variation of Arctic aerosols. It also represents an important source of independent aerosol data, which we feel should be further developed in northern areas to improve our understanding of how atmospheric aerosols influence global climate.