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    • This is a Non-Federal dataset covered by different Terms of Use than Data.gov.

    Aerial Photography (Orthophoto) - 2021

    Metadata Updated: May 7, 2025

    2021 Orthophoto - 3 inch resolution: This document describes the processes used to create the orthoimagery data produced for the District of Columbia from 2021 digital aerial photography. It was flown on March 11, 2021. 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 DC 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. This dataset provided as an ArcGIS Image service. Please note, the download feature for this image service in Open Data DC provides a compressed PNG, JPEG or TIFF. The compressed MrSID and JPEG2000 mosaic raster datasets are available under additional options when viewing downloads. Requests for the individual GeoTIFF set of images should be sent to open.data@dc.gov.

    Access & Use Information

    Public: This dataset is intended for public access and use. Non-Federal: This dataset is covered by different Terms of Use than Data.gov. License: Creative Commons Attribution

    Downloads & Resources

    Dates

    Metadata Created Date April 30, 2024
    Metadata Updated Date May 7, 2025

    Metadata Source

    Harvested from DC data

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date April 30, 2024
    Metadata Updated Date May 7, 2025
    Publisher D.C. Office of the Chief Technology Officer
    Maintainer
    Identifier https://www.arcgis.com/home/item.html?id=2cb9fe0f4b444ebbae359b8889f39dda
    Data First Published 2021-12-02T17:34:31.000Z
    Data Last Modified 2024-10-09T15:04:31.000Z
    Category geospatial
    Public Access Level public
    Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
    Schema Version https://project-open-data.cio.gov/v1.1/schema
    Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
    Harvest Object Id c786a4c3-4ec8-49b6-8a3a-1de44a95b8fa
    Harvest Source Id b05f955a-65d6-4288-9558-15a5ebc74e36
    Harvest Source Title DC data
    Homepage URL https://opendata.dc.gov/datasets/DCGIS::aerial-photography-orthophoto-2021
    License https://creativecommons.org/licenses/by/4.0
    Metadata Type geospatial
    Old Spatial -77.1220,38.7855,-76.9007,39.0017
    Source Datajson Identifier True
    Source Hash f09e3e6d3a746c53f28ee636da1fef9bcfbe510aa8304b17ffb9ad0f5b5f04e9
    Source Schema Version 1.1
    Spatial {"type": "Polygon", "coordinates": -77.1220, 38.7855, -77.1220, 39.0017, -76.9007, 39.0017, -76.9007, 38.7855, -77.1220, 38.7855}

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