Establishing an Integrated Multibeam and Geophysical Database for the Antarctic

该奖项由极地方案办公室南极地质和地球物理方案提供，支持南大洋和南极洲(大约在纬度45 S)综合多波束和地球物理数据库的建设、填充和运行。我们努力的重点将是使R/V Palmer上收集的多波束测深数据作为科学和教育资源提供给社区。该数据库将与现有的NSF支持的山脊多波束数据库有很大的相似之处，并将建立在该项目的开发工作基础上。PostgreSQL关系数据库服务器将管理该数据库。它将通过两个基于网络的界面访问：在浏览器窗口中提供简单的点、点击和文本字段输入的页面；以及基于地图的Java小程序界面，提供浏览数据库和与数据库交互的能力。数据库的主要吸引力将是访问来自R/V Palmer多波束数据的地图、网格和经编辑的原始数据文件。这些数据尚未综合在一起，通常只有探险队上的一小群研究人员才能获得，在此期间收集了这些数据。多波束数据在地球物理数据类型中可能是独一无二的：它们以精致的细节揭示了一种奇怪的、隐藏的地貌；它们包括关于海底发生的地质过程的宝贵信息；它们对于科学家为其具体研究编制底图以及作为跨学科工作的综合框架很有用。这些数据是以国家科学基金会相当大的成本获得的，是南极计划遗产的重要组成部分，也是未来研究活动的宝贵资源。除了浏览和下载多波束数据产品外，用户还将能够与数据进行动态交互。将提供生成水深剖面和等高线地图、数字化和下载点和线以及定制地图显示的能力。与多波束工作相平行并与多波束工作相关联的是，将为用最近从沃斯托克湖收集的冰穿透雷达数据填充的海底剖面数据开发一个原型数据库。ANTOSTRAT汇编和科罗拉多州国家地球物理数据中心(NGDC)提供的地震反射剖面也将包括在内。地图浏览器将提供访问Lamont-Doherty和NGDC的所有船舶获取的轨迹线地球物理财产、南极数字重力合成以及其他现有底图汇编(例如BEDMAP)和样本数据收集(例如ODP钻孔数据、RidgePetDB)的信息。将通过与多波束数据相同的地图浏览器访问所有这些数据类型，这将使用户能够从单个网站探索不同的数据集。根据该奖项将开发的多波束和地球物理数据合成预计将大大扩大这些未得到充分利用的、往往很难找到资源的用途，供对南极科学和地球基本过程感兴趣的广大学术和非学术用户使用。

This award, provided by the Antarctic Geology and Geophysics Program of the Office of Polar Programs, supports the construction, population, and operation of an integrated multibeam and geophysical database for the Southern Ocean and Antarctica (out to roughly the latitude of 45 S). The focus of our efforts will be to make multibeam bathymetry data collected aboard the R/V Palmer available to the community as a resource for science and education. The database will have strong similarities to the existing NSF supported RIDGE Multibeam database and will build upon that project's development efforts. A PostgreSQL relational database server will manage the database. It will be accessible through two web-based interfaces: pages that present a choice of a simple point, click and text-field entry in a browser window; and a map-based Java applet interface that provides the capability to browse and interact with the database.The main attraction of the database will be access to maps, grids, and edited raw data files from the R/V Palmer multibeam data. These data have not yet been brought together in a synthesis and are typically only accessible to the small group of researchers aboard the expedition during which the data were collected. Multibeam data are perhaps unique among the geophysical data types: they reveal in exquisite detail a strange, hidden landscape; they include valuable information on geological processes occurring at the sea floor; and they are useful to scientists preparing base-maps for their particular studies and as an integrating framework for interdisciplinary work. These data are acquired at considerable cost to the NSF and represent an important part of the legacy of the Antarctic program as well as a valuable resource for future research activities. In addition to browsing and downloading multibeam data products, users will be able to interact dynamically with the data. Capabilities will be provided for generating bathymetric profiles and contour maps, for digitizing and downloading points and lines, and for customizing the map display.In parallel and linked to the multibeam effort, a prototype database will be developed for sub-bottom profile data populated by recently collected ice-penetrating radar data from Lake Vostok. Available seismic reflection profiles from the ANTOSTRAT compilation and from the National Geophysical Data Center (NGDC) in Colorado will also be included. The map browser will provide access to all the ship-acquired trackline geophysical holdings at Lamont-Doherty and the NGDC, for the Antarctic Digital Gravity Synthesis and for other existing basemap compilations (e.g. BEDMAP) and sample data collections (e.g. ODP borehole data, RidgePetDB). Access to all these data types will be provided through the same map browser as the multibeam data, which will allow the user to explore diverse data sets from a single web site.The multibeam and geophysical data synthesis that will be developed under this award is expected to significantly expand the utility of these under-utilized and often hard to find resources for a broad range of users, both academic and lay, who are interested in Antarctic science and fundamental earth processes.