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1.
As a growing number of disciplines adopt geospatial technologies in their research, the need for access to geospatial data, in a variety of formats, has grown dramatically. For librarians to meet this demand, we also need to provide preservation, curation, metadata, and discovery services. GeoHydra, our open source toolkit and set of practices, provides these services for Stanford's libraries. We incorporate a variety of geospatial content types from raster imagery to scientific vector data to georeferenced scanned maps, and provide a data model for repositories. We demonstrate the potential of a new architecture and practice for librarianship for geospatial data using the Hydra framework. The digitization and georeferencing of historic map collections, streamlining the acquisition and cataloging of vendor-supplied data, shared cataloging of geographic resources, and citation of geospatial research data are all examples of use cases that GeoHydra serves. Our metadata creation and management strategies implement the ISO (International Standards Organization) suite of geographic standards, and a specialized metadata schema for discovery. We developed XSLT transformations, auto-generation of core elements, unique URIs for place names, and cross-institutional data sharing. With these metadata we built a novel geoportal, EarthWorks, to provide end-user discovery for geospatial data layers using GeoBlacklight technology.  相似文献   

2.
In recent years, there has been a growing recognition of the fact that the proper management of information has to include concern for its preservation and future re-use. This ambition is particularly significant for geospatial data. The primary aim of this article is to define the European and Spanish frameworks for the preservation and reutilization of geographical information, with the ultimate goal of proposing an articulated, lifecycle-based data management model. With this, the intent is to shed some light on a complex, difficult and ever-evolving subject.

The article is divided into two main parts. The first part begins with a conceptual justification for geospatial data management and continues by synthesizing the current normative and technological framework for the preservation and reutilization of geographical information. Within this context, the implementation of Spatial Data Infrastructures (SDI) in Spain is evaluated. The second part begins with a case study from Spain that aims to identify different agents and flows that influence the lifecycle of geographical data, as well as the strengths and weaknesses found in each stage of the process under examination. Finally, the foregoing ideas are used in order to propose a SDI-related system for the management of geographical information.  相似文献   

3.
Due to the exponential growth of spatial information, effective management and curation of geospatial data has become a central concern for GIS libraries. Although geospatial data are often generated based on a set of well-established standards and protocols, best management practices in geospatial data services are still limited. In this paper, the authors review the common challenges of geospatial data management and curation, which include the application of big data, the emergence of Web GIS, and the advancement of cyberinfrastructures. A spatial education project is used as an example to discuss potential best management practices to address these challenges. It is demonstrated that librarians need to be involved at the early stage of a research project and work closely with researchers at all stages of the data life cycle for effective data management. With early involvement of a GIS librarian in the full project development process, all three challenges can be addressed by using best management practices in organizing, managing, publishing, distributing, and preserving the geospatial data.  相似文献   

4.
The University of Florida GeoPlan Center has been organizing, standardizing, and distributing geospatial data since 1998 through the Florida Geographic Data Library (FGDL), a collection of Florida geospatial data from various agencies, as well as data developed in-house. With funding from the Florida Department of Transportation (FDOT), FGDL serves as a public distribution mechanism for hundreds of Florida geospatial data layers. Since 2004, FGDL layers have formed the data foundation for FDOT's interagency application known as efficient transportation decision making (ETDM), which facilitates the review and permitting process for proposed transportation projects. Data layers are standardized and inspected to ensure that the data are adequate for use in analysis and decision making. To efficiently manage the geospatial data and workflows, a quality assurance/quality control (QAQC) process and relational database schema was developed to track the standardization procedures, lineage, versioning, and archiving of the data layers. This article details the history of the Florida Geographic Data Library, challenges of managing a large geospatial data repository, development of a QAQC process and database schema, and lessons learned.  相似文献   

5.
针对陆地表层地理空间数据的集成共享问题,提出从数据分类、数据编码到数据格网化编码的解决方案。 从我国国情出发,以中国国家地理格网为基础,分析其空间数据的组织与编码体系,并针对国家科技基础条件平台— 地球系统科学数据共享平台中的陆地表层数据,提出结合数据分类的数据属性编码,进而建立能够与国家地理格网相 衔接的地理空间数据格网化编码应用方案。以地理空间数据的点、面实体数据为例,证实了该编码的应用可行性。预 期该编码方案能够在科学数据资源管理、数据检索访问、数据资源集成、数据资源格网化处理、数据资源空间分析、  相似文献   

6.
文章重点研究了美国地理空间数据及其组织与管理体制、有关数据分享政策法规建设、地理空间信息政策研究及相关争论等问题,提出我国地理空间信息体制建设和产业发展可借鉴美国经验,重视政策与立法,做好顶层设计,制定科学管理模式,协调各方利益。  相似文献   

7.
The Ontario Council of University Libraries (OCUL) is a consortium of the twenty-one university libraries in Ontario, Canada. Since 1967, OCUL member institutions have worked together to share costs and workload through collective purchasing and licensing of information resources and more recently through the establishment of a shared digital infrastructure known as Scholars Portal. Under the auspices of OCUL, Ontario's university map librarians formed the OCUL Map Group in 1973 to seek opportunities to communicate and collaborate to improve the collections and services they offer their users. The opportunities provided by collaboration have ensured a greater capacity to manage evolving collections of geospatial data. The group has served as a community of practice, which has provided educational opportunities and facilitated collaborative problem solving through a listserv, conference calls, and face-to-face meetings. This collegial environment has also led to the completion of a number of projects, which have resulted in the creation of new technical infrastructures and strategies for sharing the workload of data management tasks. This paper discusses the role of collaboration in OCUL projects and offers some suggestions for others considering embarking on collaborations of their own.  相似文献   

8.
ABSTRACT

Emergency response to an atmospheric release of chemical or radiological contamination is enhanced when plume predictions, field measurements, and real-time weather information are integrated into a geospatial framework. The Weather Information and Display (WIND) System at Savannah River National Laboratory (SRNL) utilizes such an integrated framework. The rapid availability of predictions from a suite of atmospheric transport models within this geospatial framework has proven to be of great value to decision makers during an emergency involving an atmospheric contaminant release.  相似文献   

9.
Geospatial data stewardship fosters user-driven collection, management, access, reuse, and preservation of location-based data. Academic and research libraries are poised to be at the center of geospatial data stewardship, working with partners to develop a sustainable, geospatial data stewardship hub. This article argues for the essential role of libraries in leading collaborative partnerships to develop a user-driven, spatial data infrastructure that includes people, policies, standards, community perspectives, and operational workflows. The emerging model of partnership-based spatial data infrastructure described at the Washington University Libraries demonstrates working methods in practice.  相似文献   

10.
ABSTRACT

For many decades, the Department of Energy (DOE) has been an international leader in basic scientific and engineering research that utilizes geospatial science to advance the state of knowledge in disciplines impacting national security, energy sustainability, environmental stewardship, and associated basic research. However, the realized benefits from cross-cutting geospatial science contributions have fallen short of what they could have been with greater collaboration across the DOE complex, stronger emphasis on core geographic information science (GIScience) research and development to support advanced applications, increased strategic institutional support (e.g., for management of legacy data), and additional education and outreach concerning how geospatial science can benefit DOE programs and operations. We propose a vision for DOE's geospatial science based on expanded collaboration to address major national problems, additional advanced GIScience research and development, and a long-term strategy to better manage DOE's geospatial science resources (personnel, facilities, shared data, etc.).  相似文献   

11.
As geospatial missions age, one of the challenges for the usability of data is the availability of relevant and updated metadata with sufficient documentation that can be used by future generations of users to gain knowledge from the original data. Given that remote sensing data undergo many intermediate processing steps, for example, an understanding of the exact algorithms employed and the quality of that data produced could be key considerations for these users. As interest in global climate data is increasing, documentation about older data, their origins, and their provenance are valuable to first-time users attempting to perform historical climate research or comparative analysis of global change. Incomplete or missing documentation could be what stands in the way of a new researcher attempting to use the data. Therefore, preservation of documentation and related metadata is sometimes just as critical as the preservation of the original observational data. The Goddard Earth Sciences–Data and Information Service Center (GES DISC), a NASA Earth science Distributed Active Archive Center (DAAC) that falls under the management structure of the Earth Science Data and Information System (ESDIS), is actively pursuing the preservation of all necessary artifacts needed by future users.

In this article, we will detail the data custodial planning and the data lifecycle process developed for content preservation, and our implementation of a Preservation System to safeguard documents and associated artifacts from legacy (older) missions, as well as detail lessons learned regarding access rights and confidentiality of information issues. We also elaborate on key points that made our preservation effort successful; the primary points being drafting of a governing baseline for historical data preservation from satellite missions and using the historical baseline as a guide to content filtering of what documents to preserve. The Preservation System currently archives documentation content for High Resolution Dynamics Limb Sounder (HIRDLS), Upper Atmosphere Research Satellite (UARS), Total Ozone Mapping Spectrometer (TOMS) mission data, and the 1960s era Nimbus mission. Documentation from other missions like the Tropical Rainfall Measuring Mission (TRMM), the Ozone Monitoring Instrument (OMI), and the Atmospheric Infra-Red Sounder (AIRS) are also slated to be added to this repository, as well as other mission datasets to be preserved at the GES DISC.  相似文献   

12.
《图书馆管理杂志》2012,52(2):172-188
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13.
The Terra Populus project (TerraPop) addresses a variety of data management, curation, and preservation challenges with respect to spatiotemporal population and environmental data. In this article, we describe our approaches to these challenges, with a particular focus on geospatial data workflows and associated provenance metadata. The goal of TerraPop is to enable research, learning, and policy analysis by providing integrated spatiotemporal data describing people and their environment. To do so, TerraPop is assembling a globe-spanning and temporally extensive collection of high-quality population and environmental data, ensuring good documentation, and developing a Web-based data access system that enables users to assemble customized integrated data sets drawing on a variety of data sources and formats. We describe TerraPop's collection strategies, detail the geospatial workflows involved in preparing data for ingest into the project database and those used to transform data across formats for dissemination, and discuss the system used to capture and manage provenance metadata throughout the project. A key aspect of the project is the development of global current and historical administrative unit boundaries that can be linked to census data. These boundaries serve as the linchpin of TerraPop's data integration strategy, and constitute an important data set in their own right.  相似文献   

14.
The authors review how access to historical aerial photograph collections has evolved in response to technological developments and addresses areas for further advancement, with a particular emphasis on developing, preserving, and sustaining online collections. The authors focus specifically on the areas of metadata, the Semantic Web and linked data, and sustainability through collaboration. The article includes brief case studies, highlighting various projects involving the aerial photography collections at the University of Minnesota. The conclusion asserts the critical role played by geographic information librarians in effectively carrying out the strategies described in the article as they relate to the long-term sustainability of digital geospatial collections.  相似文献   

15.
Abstract

Internet access and use of georeferenced public health information for GIS application will be an important and exciting development for the nation's Department of Health and Human Services and other health agencies in this new millennium. Technological progress towards public health geospatial data integration, analysis, and visualization of space-time events using the Web portends eventual robust use of GIS by public health and other sectors of the economy. Increasing Web resources from distributed spatial data portals and global geospatial libraries, and a growing suite of Web integration tools, will provide new opportunities to advance disease surveillance, control and prevention, and insure public access and community empowerment in public health decision making. Emerging supercomputing, data mining, and compression and transmission technologies will play increasingly critical roles in national emergency, catastrophic planning and response, and risk management. Web-enabled public health GIS will be guided by Federal Geographic Data Committee spatial metadata, OpenGIS Web interoperability, and GML/XML geospatial Web content standards. Public health will become a responsive and integral part of rhe National Spatial Data Infrastructure.  相似文献   

16.
Abstract

Geographic Information Systems (GIS) as part of the academic library is central on the campus and succeeds with collaboration—in the library, across campus, in the community and region, throughout the state, and at the national level. The integrated components of GIS—hardware, software, data, people, and methods—provide a framework for collaboration. Initiated in 2001, the Geographic Information Systems & Maps Program at the University of Arkansas (UA) Libraries resulted from and developed through collaborative opportunities. The program, which is primarily web based, incorporates locally developed yet nationally recognized resources including Starting the Hunt—a guide to geospatial data on the Web—and GeoStor—a statewide, comprehensive and seamless geospatial data warehouse and delivery system. A model incorporating spheres of collaboration describes the nature and benefits of collaboration at the five different levels, as experienced in the UA Libraries. The model can guide other libraries proactively seeking opportunities of collaboration, in order to develop resources and services for a successful GIS program.  相似文献   

17.
大部分有用的数字信息与地球上的地点和区域相联系。针对数字图书馆的传统可视化界面没有被设计成用来处理数据的独一无二的地理空间特征，也没有更好地利用地理参考信息的特点并将其作为浏览和检索信息的机制，本文阐明了地理空间信息可视化界面的发展趋势，并且提出了多媒体地理空间文献空间有效可视化所面临的主要挑战。本文列举了最新的研究成果，并且回顾针对集成文献可视化(在信息科学领域得到发展)与地理可视化技术(在地理空间信息学科领域得到发展)的若干尝试，以支持科学的信息获取和决策。作者得出了一组空间认知原则，它们影响了地理空间信息可视化界面的未来发展。  相似文献   

18.
Many federal agencies face challenges with designing geospatial data management systems. This paper presents and documents a needs-assessment process that can be employed to prioritize agencies’ geospatial information needs; identify agencies’ capacity to manage a centralized geodatabase; determine agencies’ capacity to deliver Web-mapping services to the public; and identify barriers, such as data security and limited financial resources, that constrain agencies’ ability to design and manage a geospatial data management system. The paper details the needs-assessment process and documents its application to the National Park Service (NPS) Conservation and Outdoor Recreation (COR) Branch programs. The NPS COR Branch is comprised of nine disparate programs, such as the National Trails System and the Rivers, Trails, and Conservation Assistance program, each of which has specific geospatial data management and delivery needs. The needs-assessment process, tested through its application to the NPS COR Branch programs, provides a comprehensive and logical workflow for system developers and administrators to use as they create or refine geospatial data management systems.  相似文献   

19.
In this article, we provide an overview of both the social and technical composition of the Open Geoportal (OGP) Federation: an open source, collaborative framework designed to support the various components of spatial data infrastructure and geospatial data repositories. The social components include best-practices, governance models, and working groups, as wells as the OGP wiki, blogs, elists, summits, and virtual meetings. The technical components include the Open Geoportal, Open Geoportal Harvester, and Open Geoportal Metadata Toolkit. We also include benefits and business drivers to adopting this new interoperable, collaborative model.  相似文献   

20.
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