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DOQQ's serve a variety of purposes, from interim maps to field references for earth science investigations and analysis. The DOQ is useful as a layer of a geographic information system and as a tool for revision of digital line graphs and topographic maps. |
| summary:
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DOQQ's serve a variety of purposes, from interim maps to field references for earth science investigations and analysis. The DOQ is useful as a layer of a geographic information system and as a tool for revision of digital line graphs and topographic maps. |
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136056.670397262 |
| typeKeywords:
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["Data","Service","Image Service","ArcGIS Server"] |
| description:
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Orthophotos combine the image characteristics of a photograph with the geometric qualities of a map. The primary digital orthophotoquad (DOQ) is a 1-meter ground resolution, quarter-quadrangle (3.75-minutes of latitude by 3.75-minutes of longitude). The geographic extent of the DOQ is equivalent to a quarter-quad plus the overedge ranges from a minimum of 50 meters to a maximum of 300 meters beyond the extremes of the primary and secondary corner points. The overedge is included to facilitate tonal matching for mosaicking and for the placement of the NAD83 and secondary datum corner ticks. The normal orientation of data is by lines (rows) and samples (columns). Each line contains a series of pixels ordered from west to east with the order of the lines from north to south. The standard, archived digital orthophoto is formatted as four ASCII header records, followed by a series of 8-bit binary image data records. The radiometric image brightness values are stored as 256 gray levels ranging from 0 to 255. The metadata provided in the digital orthophoto contain a wide range of descriptive information including format source information, production instrumentation and dates, and data to assist with displaying and georeferencing the image. |
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| title:
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DOQQ_NC_CIR_1998 |
| type:
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Image Service |
| url:
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https://services.gis.nc.gov/secure |
| tags:
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["digital image map","quarter-quadrangle orthophoto","aerial photograph","DOQ","3.75 x 3.75 minute orthophoto","DOQQ","rectified photograph","1-meter orthophoto","imageryBaseMapsEarthCover","imagery","rectified image","orthophoto","North Carolina","doqq","orthophotoquad","aerial","digital orthophoto","ortho","digital orthophotoquad","NC","NC OneMap","Department of Information Technology","DIT","Center for Geographic Information and Analysis","CGIA"] |
| culture:
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en-US |
| name:
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DOQQ_NC_CIR_1998 |
| guid:
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| minScale:
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6.96610152433982E7 |
| spatialReference:
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NAD_1983_StatePlane_North_Carolina_FIPS_3200 |