Linked Open Data for Geospatial Formats

A geographic information or geographical information system (GIS) is a system for creating, storing, analyzing and managing spatial data and associated attributes. In the strictest sense, it is a computer system capable of integrating, storing, editing, analyzing, sharing, and displaying geographically-referenced information. In a more generic sense, GIS is a tool that allows users to create interactive queries (user created searches), analyze the spatial information, and edit data.

The significant properties of geospatial records are documented in a Geospatial Preservation Plan, which can be used as test criteria for tools and processes used in format transformations.

NARA makes its Linked Open Data available in the Resource Description Framework Terse RDF Triple Language, or RDF Turtle (.ttl files). These files can be opened in any text editor. The Digital Preservation Framework as Linked Open Data includes the same elements as are available in the version of the Preservation Plans on GitHub.

These Plans are not exhaustive nor universally applicable proposed actions and recommended or endorsed tools: these represent file formats and variant versions in NARA holdings, the current NARA risk assessment, processing capabilities, and tools in use at NARA.


Format Name File Extension(s) Digital Preservation Framework Category/Categories NARA Format ID NARA Linked Open Data TTL
BSB kap|cap|bsb Navigational Charts|Geospatial NF00636
CompeGPS Land Track file trk Geospatial NF00790
E57 Lidar Point Cloud Format e57 Geospatial|Digital Design and Vector Graphics NF00794
ESRI ArcInfo Interchange File Format e00 Geospatial NF00173
ESRI File Geodatabase gdb Geospatial NF00836
ESRI Shapefile (Arc/View Shapefile Index) shx Geospatial NF00557
ESRI Shapefile (dBASE Table for ESRI Shapefile) dbf Geospatial NF00558
ESRI Shapefile (ESRI Header Index) prj Geospatial NF00559
ESRI Shapefile (ESRI Spatial Index File) sbx|sbn Geospatial NF00560
ESRI Shapefile Compound File shp|sbn|dbf|prj|shx|sbx Geospatial NF00174
ESRI World File wld|blw|bpw|bqw|gfw|tfw|pgw Geospatial NF00175
Geography Markup Language gml Geospatial NF00200
GeoJSON json|geojson Geospatial NF00831
GeoPackage gpkg Geospatial NF00795
Geospatial Tagged Image File Format (GeoTIFF) gtiff|tif|tiff Geospatial|Digital Still Image NF00201
Intergraph Raster Format crl Navigational Charts|Geospatial NF00635
Keyhole Markup Language kml Geospatial NF00222
Keyhole Markup Language (Container) kmz Geospatial NF00577
MapInfo Map Object File map Geospatial NF00733
Microsoft Streets and Trips Map Format est Geospatial NF00821
Multiresolution Seamless Image Database (MrSID) sid Digital Still Image|Geospatial NF00813
Network Common Data Form, Version 4 (NetCDF-4) nc|h5 Geospatial NF00837
Raster Product Format toc|ovr|l41 Geospatial NF00394
S-57 Electronic Navigation Chart 0xx Navigational Charts|Geospatial NF00637
SEG-Y rev 0 sgy|segy Geospatial|Structured Data NF00845
Spatial Data Transfer Standard (SDTS) ddf Geospatial NF00408
TerraGo Geospatial PDF pdf Geospatial NF00425
Topologically Integrated Geographic and Encoding Referencing Files (TIGERLine) e00|ft#|rt#|shp|dlg Geospatial NF00426
Vector Product Format Primitive|csi|Connected Node Spatial Index|dht Geospatial NF00433