Browsing by Subject "geospatial data"
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Item Envisioning a Geospatial Data Portal and Curation Network(2016-05-25) Weimer, Katherine Hart; Burns, Douglas; Been, Joshua; Ricker, Kim; Smith, Cecelia; Rice University; University of North Texas; University of Houston; Texas A&M UniversityLocal, state and federal agencies, as well as non-governmental agencies and a variety of researchers are producing geospatial data in increasing amounts. Libraries are challenged to collect, manage and provide discovery to this variety of geospatial data. This work requires both technical infrastructure and personal expertise. University libraries are curating and storing locally created geospatial data at various levels, however, there are no coordinated efforts across the state of Texas to curate, store, nor share out the data. This panel will explore the multifaceted issues surrounding geospatial data curation, including: • What are the current local efforts to curate, store and share data? • What technical options exist for a collaborative data preservation and discovery environment (i.e. data portal)? • What skills and expertise are required? • What metadata standards are being followed? • What costs and benefits are there to a coordinated approach? • How might TDL serve to facilitate this endeavor? • How might a collective/common data portal support GIS services across TDL libraries? This panel will include GIS librarians / data managers who will share their experiences and challenges in an effort to begin conversations to create a state-wide geospatial data portal. Each panelist will present a ten minute briefing on the GIS data and services provided through their library and describe their campus environment, including any challenges or gaps they have found which impede meeting patron requests. Each will share ideas on what possible improvements may exist and what collaborative role TDL may play. The panelists will encourage wide audience engagement in question and answer and discussions during the second half of the allotted panel time.Item A Manakin Case Study Visualizing geospatial metadata and complex items(2007-05-30) Maslov, Alexey; Green, Cody; Mikeal, Adam; Phillips, Scott; Weimer, Kathy; Leggett, John; Texas A&M UniversityIncreasingly, repositories are responsible for preserving complex items, and items with specific/unique metadata, such as geospatial metadata. These collections present unique challenges for the repository interface, and traditional approaches often fail to provide adequate visualization mechanisms. This presentation is a case study of a particular collection that exhibits a Manakin solution to both of these challenges. The Geologic Atlas of the United States is a series of 227 folios published by the USGS between 1894 and 1945. Each folio consists of 10 to 40 pages of mixed content -- including maps, text, and photographs -- with an emphasis on the natural features and economic geology of the coverage area. Complex Items: The current visualization model in DSpace offers a cumbersome browsing experience for complex items, as the default item view in DSpace is not optimized for items that contain more than a few bitstreams. The logical organization of the folio collection was as a single DSpace collection with 227 items, where each item contained multiple bitstreams representing each page of the folio. The result was an uninformative list of filenames, each linking to a very large (approximately 100 MB) image file. Manakin allowed us to create a new detail view for the folio items using an image gallery-style viewing interface. This new view has thumbnails for each page and lower-resolution surrogates for screen viewing. It also allows a viewer to download either the full archival-quality TIFF or a reduced-quality JPEG. The combination of thumbnail surrogates and the ability to see all pages of a folio at once serves to increase the ease with which the collection is navigated and understood. Unique Metadata: The current DSpace interface is unable to leverage the potential of atypical metadata, such as the geospatial metadata attached to the folio collection. Although geographic elements were added to the DSpace metadata registry following Dublin Core Metadata Initiative (DCMI) recommendations, the only visualization mechanism DSpace could offer was a flat listing of the metadata values. Manakin allowed us to exploit the unique geospatial properties of the folio collection. It was determined that a map-based interface for browsing and searching would help a user to quickly determine the coverage area of a particular folio visually, as well as place the title in its geographic context. Both of the challenges presented by this case study could have been addressed using the existing JSP interface. However, the awkward nature of such an implementation would be impractical to create and maintain; furthermore, no mechanism exists to restrict such changes to an individual collection. Manakin's modular architecture made the creation of this interface achievable by a small team in a matter of days. Currently, the interface is available online at http://handle.tamu.edu/1969.1/2490, and has been featured as an Editor's Pick on Yahoo.com for its use of the Yahoo! Maps API.Item Session 1E | What in the world is GIS?(Texas Digital Library, 2021-05-24) Maleki, ShadiGIS, which stands for Geographic Information System, is currently one of the fastest growing fields in the world: in both academia and the corporate world. This 2-hour long virtual workshop will introduce participants to GIS using QGIS; a free and open source GIS software. Participants will learn some basic techniques like querying data and designing a map. It is open to all who have little to no prior knowledge in GIS. To participate, interested persons are expected to have installed the QGIS software on their computer prior to attending the workshop. Please visit https://www.qgis.org/en/site/ to download QGIS.Item Session 3F | Geographic Information System (GIS) Birds of a Feather Session(Texas Digital Library, 2021-05-26) Shensky, MichaelThis birds of a feather session will provide an opportunity for TCDL attendees who share an interest in geographic information systems (GIS), geospatial data, and maps to come together to share ideas, discuss current trends, and identify opportunities for collaboration. It will be a great chance for attendees to engage in conversation regarding a number of different GIS related topics that are of relevance to the library community including development of geospatial research support services, sharing of geospatial data from library collections, and organization of GIS training opportunities.