Partial and County wide ortho photography at various pixel resolutions from a variety of years from 1927 - 2022.
Horizontal Accuracy Report

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.

The dataset consists of tiled orthogonal imagery produced from nadir images captured by Pictometry International from 4/6/2024 to 5/8/2024.

Dutchess County 1936 Aerial Photography Index: A received index that allows the user to download zipped aerial photographs. Dutchess County 1936 Aerial Photography: 1936 Aerial Photographic Survey. Photographs cover the entire county. Photos were taken in the Spring of 1936. Original photos are black and white, roughly 2 feet x 3 feet in size and on a fabric medium. The original 50 photos were scanned as tiffs and rectified. The collection is grouped into the Northwest, Southwest, Northeast, and Southeast. All Spatial Reference of Source Data: NAD 1983 StatePlane New York East FIPS 3101 Feet. All Spatial Reference of Source Data: WGS 1984 Web Mercator Auxiliary Sphere. All Data current as of March 2022.Contact Information:Joseph Rutkowski 503 Haight Ave Poughkeepsie, New York 12603

                  PH: 845-486-2450 jrutkowski@dutchessny.gov

1939 Digital Aerial Photography Contributor: Rhode Island Department of Administration, Statewide Planning Program This map service features scanned, georeferenced historical aerial photography collected in May of 1939. The scanned images are panchromatic (black and white) and have a spatial resolution of approximately 4 feet. While the original prints are archived by the Rhode Island Statewide Planning Program, the scanned images are available from the Rhode Island Geographic Information System (RIGIS) consortium (https://rigis.org)Users can download these images.visit this page and download them all. use this imagery Download App to choose the ones you needThese download in zipped MrSID format. Web services available:ArcGIS Online hosted tile layer ArcGIS map service (REST endpoint)Metadata

1951-1952 Digital Aerial Photography Contributor: Rhode Island Department of Administration, Statewide Planning ProgramThis map service features scanned, georeferenced historical aerial photography collected between October 1951 and June 1952. The scanned images are panchromatic (black and white) and have a spatial resolution of approximately 5 feet. While the original prints are archived by the Rhode Island Statewide Planning Program, the scanned images are available from the Rhode Island Geographic Information System (RIGIS) consortium (https://www.rigis.org).Users can download these images. visit this page and download them all. use this Imagery Download App to choose the ones you need.These images are available for download in JPEG2000 format.Web services available:ArcGIS Online hosted tile layer ArcGIS map service (REST endpoint)Metadata

In the spring of 2017, the Commonwealth of Virginia, through the Virginia Geographic Information Network Division (herein referred to as VGIN) of the Virginia Information Technologies Agency (VITA) contracted with Fugro Geospatial, Inc. to provide aerial data acquisition, ground control, aerial triangulation and development of statewide ortho quality DEM and digital orthophotography data. Orthos available are 6-inch resolution tiles and 3-inch resolution tiles within the project area.

To access the aerial photography, click the block over the area of interest and then select the available imagery through the pop-up. The image will download immediately through the browser.

In the Spring of 2016, the Commonwealth of Virginia, through the Virginia Geographic Information Network Division (herein referred to as VGIN) of the Virginia Information Technologies Agency (VITA) contracted with the Sanborn Map Company to provide aerial data acquisition, ground control, aerial triangulation and development of statewide DTM and digital orthophotography data. Orthos available are 6-inch resolution tiles and 3-inch resolution tiles within the project area.

To access the aerial photography, click the block over the area of interest and then select the available imagery through the pop-up. The image will download immediately through the browser.

This image service features aerial photographs collected March 2024 by Eagle View Technologies, Inc, under contract to the Rhode Island Department of Transportation. The source images are 3-band true color, have a 3-inch spatial resolution, and blend both leaf-on and leaf-off areas. These images are not traditionally orthorectified.These data were contributed to the Rhode Island Geographic Information System (RIGIS; https://www.rigis.org) by the Rhode Island Department of Transportation. While these aerial photographs are very detailed (3-in pixel resolution), they are not traditionally orthorectified. Their horizontal accuracy may vary throughout the state. Potential users are encouraged to carefully evaluate the suitability of these images before use.These images will be made available for traditional file download by RIGIS when resources are available.Metadata (not currently available)Web servicesArcGIS image service, WGS84 Web Mercator (EPSG 102700)ArcGIS image service, NAD83 RI State Plane feet (EPSG 3438)Tile index shapefile (not currently available)Traditional file listing (not currently available)

The zip file contains a large tiff mosaic stitched together from a series of aerial photographs of the Calhoun CZO area taken in 1933, when the area was being acquired by the US Forest Service. USFS archaeologist Mike Harmon delivered the black-and-white photographs, known to him as the 'Sumter National Forest Purchase Aerials', to us in a box. The photographs include most of the Enoree District of the Sumter National Forest, including the entirety of the Calhoun CZO, not just the long-term plots and small watersheds. The photographs were scanned and georectified, then color-balanced and stitched together following 'seams' - high-contrast features such as rivers and roads ('seamlined'). In addition to the main tiff are four files that can be used to properly geolocate the composite image in ArcGIS.

The multilayer pdf file includes a smaller version of the seamlined 1933 aerial photography mosaic raster layer, as well as this aerial mosaic transparent over slope map (for a 3D-like 1933 image raster). Other layers include contours, roads, boundaries, sampling locations, 1.5 m DEM, 1.5m slope, 1m 2013 NAIP aerial imagery, and 2014 canopy height. The pdf file includes both 'interfluve order' and 'landshed order.' These two layers mean the same thing, but the landshed is the area unit around the interfluve that is used for statistics; this dataset has been QC'ed. The Interfluve Order network was used to delineate the landsheds and agrees with it >95% of the time, but has a few inaccuracies (it was automated by the computer) that were fixed manually. Use the network for viewing and considering the landscape at large, but for the specific interfluve order, check the color of the 'Landshed Order' dataset to verify its accuracy.

Date Range Comments: The exact date these photos were taken is unknown, but the year is thought to be 1933.The flight date is prior to the USFS land purchases for the Enoree District of the Sumter National Forest; the photos are thus known as the "pre-purchase photos").

The New Jersey Office of GIS, NJ Office of Information Technology manages a series of 11 digital orthophotography and scanned aerial photo maps collected at various years ranging from 1930 to 2017. Each year’s worth of imagery are available as Cloud Optimized GeoTIFF (COG) files and some years are available as compressed MrSID and/or JP2 files. Additionally, each year of imagery is organized into a tile grid scheme covering the entire geography of New Jersey. Many years share the same tiling grid while others have unique grids as defined by the project at the time.

2017 Orthophoto - 3 inch resolution imagery service. Data produced for the District of Columbia from 2017 digital aerial photography. It was flown in early March, completed on March 8, 2017. Due to technical difficulties, the downtown area is not comprised of true orthoimagery. The contractor worked to minimize building lean by using the increased side-lap of imagery. 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. 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 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 open.data@dc.gov.

Carver County 2023 Aerial Imagery

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. 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 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 open.data@dc.gov.

This collection of geo-referenced photos vary with regards to spatial accuracy and resolution. Use the hotlinks below to learn the details of each collection or review MassGIS's new story map explaining all the vintages of aerial photos. Tip: Reviewing that story map might be an easier way to digest the information rather than reviewing the more formal/standard metadata accessible via the hotlinks below.Within the web map certain layers will only be visible at particular zoom extents. If a layer is unavailable to turn on/off, then zoom in or out as needed until the layer becomes active.All photos, except year 1938, are captured during leaf-off (typically late winter/early spring). With the exception of the 1938 & 1990s collection, all photos are in true color. The 1938 & 1990s are in black and white. With regards to Dukes County (which includes the Islands of Martha's Vineyard and the Elizabeth Islands) these are the applicable years of acquisition for those State-wide collections that span multiple years: "1990s collection" -- Only year 1999 for Dukes County"2001-2003 collection" -- Only year 2003 for Dukes County"2008-2009 collection" - Only year 2009 for Dukes County"2011-2012 collection" - Only year 2011 for Dukes County"2013-2014 collection" - Only year 2014 for Dukes CountyPhoto Details (Metadata)1938 Black & White Aerials (georeferenced & hosted by Harvard Forest)1990s Black & White Aerials2001-2003 Color Aerials2005 Color Aerials2008-2009 Color Aerials2011-2012 Color Aerials2013-2014 Color Aerials2015 Satellite Images - Extra Details2019 Color Aerials2021 Color Aerials2023 Color AerialsParcel Lines -- These data are NOT survey grade and are intended for general reference only. The parcel data comply with the MassGIS Level 3 parcel data standard. Each town in Dukes County hires a GIS Consultant to prepare their digital parcel lines and to link the properties to the respective records from the town's assessing database. The linkage is static and not updated in real-time - it is only 'as current' as the day the data was exported from the assessing database. The Martha's Vineyard Commission does not edit nor maintain any assessing data or parcel lines/property bounds. Each town within Dukes County updates their digital parcel data when they see fit (most, typically, update annually). Click on a specific town in this map to see when their parcel data was updated and by whom. Similarly, clicking on a parcel in this "MA Aerial Photos Since 1990s web map" will show you the applicable Fiscal Year the assessing info was exported.

Polygon layer of 1993 aerial photo models; derived from imagery project program which determined model boundaries based on 9” x 9” contact print photo centers of adjacent aerial photo frames. Spring 1993 aerial photography was acquired by Atlantic Aerial (Magnolia River) of Huntsville, Alabama under contract to LOJIC. Photo scale 1 inch = 660 feet.

This REST Service provides cached satellite imagery for the City of Tempe. Imagery was flown in late 2022 and early 2023.

Aerial photography collected by Pictometry International Corp. between March 6, 2021 to March 10, 2021. Original pixel resolution is combination of 3 and 9 inch

1939 Digital Aerial Photography Contributor: Rhode Island Department of Administration, Statewide Planning Program This map service features scanned, georeferenced historical aerial photography collected in May of 1939. The scanned images are panchromatic (black and white) and have a spatial resolution of approximately 4 feet. While the original prints are archived by the Rhode Island Statewide Planning Program, the scanned images are available from the Rhode Island Geographic Information System (RIGIS) consortium (https://rigis.org)Users can download these images.visit this page and download them all. use this imagery Download App to choose the ones you needThese download in zipped MrSID format. Web services available:ArcGIS Online hosted tile layer ArcGIS map service (REST endpoint)Metadata

The points in this dataset represent the approximate geographic location of the centroids for scanned, non-georeferenced air photos that were captured between 1923 and 2007 and are freely available via the John R. Borchert Map Library and the Minnesota Department of Natural Resources.

The images were captured by a variety of government entities to address a wide range of applications. Images were scanned at resolutions ranging from 150 to 1200DPI. The collection includea a mixture of black & white, true color and infrared photographs. Various image collects were taken at a range of flight heights depending on the year and purpose of the collect.