{"@type": "dcat:Dataset", "accessLevel": "public", "contactPoint": {"@type": "vcard:Contact", "fn": "DCGISgroup", "hasEmail": "mailto:gisgroup@dc.gov"}, "description": "<div>2019 Orthophoto - 3 inch resolution imagery service. Data produced for the District of Columbia from 2019 digital aerial photography. Flight took place on April 23rd, 2019. Further details included in download XML file. The aerial imagery acquisition was flown to support the creation of 4-band digital orthophotography with a 3 inch/0.08 meter pixel resolution over the full project area covering the District of Columbia which is approximately 69 square miles. The contractor received waivers to fly in the Flight Restricted Zone (FRZ) and P-56 areas. The ortho imagery was submitted to the District's Chief Technology Office (OCTO) in GeoTiff/TFW format tiles following the tile scheme provided by OCTO. MrSID and JPEG2000 compressed mosaics were delivered as well using a 50:1 compression ratio. All District geospatial data is stored and exported in Maryland State Plane coordinates NAD 83 meters.\u00a0This dataset provided as an\u00a0<a href='https://enterprise.arcgis.com/en/image/' rel='nofollow ugc'>ArcGIS Image service</a>. Please note, the download feature for this image service in Open Data DC provides a compressed PNG, JPEG or TIFF. The compressed MrSID or JPEG2000 mosaic raster datasets are available under additional options when viewing downloads. Requests for the individual GeoTIFF set of images should be sent to\u00a0<a href='mailto:open.data@dc.gov' rel='nofollow ugc'>open.data@dc.gov</a>.</div>", "distribution": [{"@type": "dcat:Distribution", "accessURL": "https://opendata.dc.gov/datasets/DCGIS::aerial-photography-orthophoto-2019", "format": "Web Page", "mediaType": "text/html", "title": "ArcGIS Hub Dataset"}, {"@type": "dcat:Distribution", "accessURL": "https://imagery.dcgis.dc.gov/dcgis/rest/services/Ortho/Ortho_2019/ImageServer", "format": "ArcGIS GeoServices REST API", "mediaType": "application/json", "title": "ArcGIS GeoService"}, {"@type": "dcat:Distribution", "accessURL": "https://dcgov.box.com/v/orthophoto2019", "description": "WinZip download file containing MrSID.", "format": null, "title": "MrSID Raster Download (.zip)"}, {"@type": "dcat:Distribution", "accessURL": "https://dcgov.box.com/v/orthophoto2019jpeg", "description": "WinZip download file containing JPEG2000.", "format": null, "title": "JPEG2000 Raster Download (.zip)"}], "identifier": "https://www.arcgis.com/home/item.html?id=586a475ec2b74defa1ac2ec3221a6aaf", "issued": "2020-07-29T12:26:35.000Z", "keyword": ["ortho", "aerial", "imagery", "2019 aerial", "aerial photography", "planimetrics", "District of Columbia", "Orthophotography", "2019 image", "imagery service", "washington dc"], "landingPage": "https://opendata.dc.gov/datasets/DCGIS::aerial-photography-orthophoto-2019", "license": "https://creativecommons.org/licenses/by/4.0", "modified": "2024-10-09T15:03:00.000Z", "publisher": {"name": "City of Washington, DC"}, "spatial": "-77.1220,38.7855,-76.9007,39.0017", "theme": ["geospatial"], "title": "Aerial Photography (Orthophoto) - 2019"}