| snippet:
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Cached 1975 KH-9 HEXAGON imagery of the Poloniny–Bieszczady region in S-JTSK / Krovak East North (EPSG:5514), prepared within the RETROCHANGE project. |
| summary:
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Cached 1975 KH-9 HEXAGON imagery of the Poloniny–Bieszczady region in S-JTSK / Krovak East North (EPSG:5514), prepared within the RETROCHANGE project. |
| extent:
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[[22.1201381411531,48.920728418251],[22.9199428245572,49.2530843094629]] |
| accessInformation:
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Source imagery: Declassified KH-9 (HEXAGON) satellite imagery courtesy of the U.S. Geological Survey (USGS), Earth Resources Observation and Science (EROS) Center. Georeferencing and processing: Technical University in Zvolen, RETROCHANGE project. |
| thumbnail:
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thumbnail/thumbnail.png |
| maxScale:
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1.7976931348623157E+308 |
| typeKeywords:
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["ArcGIS","ArcGIS Server","Data","Map Service","Service"] |
| description:
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This cached map service provides georeferenced high-resolution KH-9 HEXAGON satellite imagery acquired in 1975 and covering the Poloniny–Bieszczady–Ukrainian Carpathians cross-border region of Slovakia, Poland, and Ukraine.
The original declassified satellite imagery was obtained from the U.S. Geological Survey (USGS), Earth Resources Observation and Science (EROS) Center. The imagery was georeferenced and processed by the Technical University in Zvolen within the RETROCHANGE project.
The service uses the S-JTSK / Krovak East North coordinate reference system (EPSG:5514) and a predefined tile cache optimized for fast map visualization. It is intended primarily for desktop GIS, national and regional geospatial applications, and workflows using S-JTSK / Krovak East North.
The dataset is intended for retrospective forest and landscape change analysis, historical land-cover mapping, forest monitoring, forest fragmentation and edge analysis, and comparison with contemporary geospatial datasets.
Positional accuracy may vary spatially due to the characteristics of historical satellite imagery and the georeferencing process. The dataset is not intended for cadastral, legal, engineering, or survey-grade applications.
Coordinate reference system: EPSG:5514 – S-JTSK / Krovak East North
Service type: Cached map service
The same dataset is also available as a dynamically rendered service and as a cached Web Mercator (EPSG:3857) service.
Project: https://gis.tuzvo.sk/retrochange |
| licenseInfo:
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Publicly accessible for research, education, environmental monitoring, and other lawful uses. Users are requested to acknowledge the original USGS imagery and RETROCHANGE processing when using the service, derived products, or figures. The dataset is provided “as is” without warranty of positional or thematic accuracy. |
| catalogPath:
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|
| title:
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poloniny_epsg5514 |
| type:
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Map Service |
| url:
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|
| tags:
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["KH-9"," HEXAGON"," historical satellite imagery"," 1975"," Poloniny"," Bieszczady"," Eastern Carpathians"," Slovakia"," Poland"," Ukraine"," S-JTSK"," Krovak East North"," EPSG:5514"," cached map service"," tile cache"," GIS"," remote sensing"," forest monitoring"," RETROCHANGE"," EOSC "] |
| culture:
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sk-SK |
| portalUrl:
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|
| name:
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poloniny_epsg5514 |
| guid:
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AE7B3B8C-7AFB-4ACE-8C46-9F24EEDD9335 |
| minScale:
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0 |
| spatialReference:
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S-JTSK_Krovak_East_North |