{ "culture": "en-US", "name": "Ortho_1927", "guid": "", "catalogPath": "", "snippet": "Aerial Photography Image of Washington, DC from 1927 and 1930.", "description": "This dataset contains georeferenced aerial imagery from 1927 and 1930 covering the District of Columbia. The original photographs were created as part of early aerial survey efforts and are held within a combined National Archives and Records Administration (NARA) catalog entry (NARA ID 139056920), Record Group 328. The images were scanned by the National Capital Park and Planning Commission, Federal Projects Planning Division (ca. 1926\u2013ca. 1952).\nA multi-agency collaboration\u2014including the Historic Preservation Office, OCTO, DHS, OP, DOEE, DOH, and FEMS\u2014completed the georeferencing and mosaic development. As part of this effort, the team georeferenced and cataloged the full 1927 aerial photo series of the District, derived from more than 700 high\u2011resolution image scans. The resulting mosaic and index provide a historic baseline for land use, urban development, environmental analysis, and cultural resource research.", "summary": "Aerial Photography Image of Washington, DC from 1927 and 1930.", "title": "Ortho_1927", "tags": [ "ortho", "1927", "aerial", "dc" ], "type": "Image Service", "typeKeywords": [ "ArcGIS Server", "Data", "Image Service", "Service" ], "thumbnail": "", "url": "https://10.82.20.154:6443/arcgis/admin", "minScale": 300000, "maxScale": 1000, "spatialReference": "NAD_1983_StatePlane_Maryland_FIPS_1900", "accessInformation": "Office of the Chief Technology Officer, Historic Preservation, DHS, OP, DOEE, DOH, and FEMS", "licenseInfo": "None. However, users should be aware that temporal changes may have occurred since this dataset was collected and that some parts of these data may no longer represent actual surface conditions. Users should not use these data for critical applications without a full awareness of its limitations. This work is licensed under a Creative Commons Attribution 4.0 International License." }