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Service Description: This cached map service provides georeferenced high-resolution KH-9 HEXAGON satellite imagery acquired in 1975 and covering the High Tatras region of Slovakia and Poland. 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 other workflows using S-JTSK / Krovak East North.
The dataset is intended for retrospective analysis of forest and landscape change, historical land-cover mapping, forest monitoring, forest fragmentation and edge analysis, landscape structure assessment, 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
Map Name: htatras_1975
Legend
All Layers and Tables
Layers:
Description:
Copyright Text: 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.
Spatial Reference:
102067
(5514)
Single Fused Map Cache: true
Tile Info:
- Height: 256.0
- Width: 256.0
- DPI: 96.0
-
Levels of Detail: 24
-
Level ID: 0
[ Start Tile, End Tile ]
- Resolution: 263278.36441612162
- Scale: 995067834.01368797
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Level ID: 1
[ Start Tile, End Tile ]
- Resolution: 131639.18220806081
- Scale: 497533917.00684398
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Level ID: 2
[ Start Tile, End Tile ]
- Resolution: 65819.591104030405
- Scale: 248766958.50342199
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Level ID: 3
[ Start Tile, End Tile ]
- Resolution: 32909.795552015203
- Scale: 124383479.251711
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Level ID: 4
[ Start Tile, End Tile ]
- Resolution: 16454.897776007601
- Scale: 62191739.625855498
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Level ID: 5
[ Start Tile, End Tile ]
- Resolution: 8227.4488880038007
- Scale: 31095869.812927749
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Level ID: 6
[ Start Tile, End Tile ]
- Resolution: 4113.7244440019003
- Scale: 15547934.906463875
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Level ID: 7
[ Start Tile, End Tile ]
- Resolution: 2056.8622220009502
- Scale: 7773967.4532319373
-
Level ID: 8
[ Start Tile, End Tile ]
- Resolution: 1028.4311110004751
- Scale: 3886983.7266159686
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Level ID: 9
[ Start Tile, End Tile ]
- Resolution: 514.21555550023754
- Scale: 1943491.8633079843
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Level ID: 10
[ Start Tile, End Tile ]
- Resolution: 257.10777775011877
- Scale: 971745.93165399216
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Level ID: 11
[ Start Tile, End Tile ]
- Resolution: 128.55388887505939
- Scale: 485872.96582699608
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Level ID: 12
[ Start Tile, End Tile ]
- Resolution: 64.276944437529693
- Scale: 242936.48291349804
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Level ID: 13
[ Start Tile, End Tile ]
- Resolution: 32.138472218764846
- Scale: 121468.24145674902
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Level ID: 14
[ Start Tile, End Tile ]
- Resolution: 16.069236109382423
- Scale: 60734.12072837451
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Level ID: 15
[ Start Tile, End Tile ]
- Resolution: 8.0346180546912116
- Scale: 30367.060364187255
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Level ID: 16
[ Start Tile, End Tile ]
- Resolution: 4.0173090273456058
- Scale: 15183.530182093627
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Level ID: 17
[ Start Tile, End Tile ]
- Resolution: 2.0086545136728029
- Scale: 7591.7650910468137
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Level ID: 18
[ Start Tile, End Tile ]
- Resolution: 1.0043272568364014
- Scale: 3795.8825455234069
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Level ID: 19
[ Start Tile, End Tile ]
- Resolution: 0.50216362841820072
- Scale: 1897.9412727617034
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Level ID: 20
[ Start Tile, End Tile ]
- Resolution: 0.25108181420910036
- Scale: 948.97063638085172
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Level ID: 21
[ Start Tile, End Tile ]
- Resolution: 0.12554090710455018
- Scale: 474.48531819042586
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Level ID: 22
[ Start Tile, End Tile ]
- Resolution: 0.062770453552275091
- Scale: 237.24265909521293
-
Level ID: 23
[ Start Tile, End Tile ]
- Resolution: 0.031385226776137545
- Scale: 118.62132954760646
- Format: Mixed
- Compression Quality: 75.0
- Origin: X: -3.369963064526357E7
Y: 3.366613058461971E7
- Spatial Reference: 102067
(5514)
Storage Info:
- Storage Format: esriMapCacheStorageModeCompactV2
- Packet Size: 128
Initial Extent:
XMin: -390000.0
YMin: -1204523.83531961
XMax: -315000.0
YMax: -1157476.16468039
Spatial Reference: 102067
(5514)
Full Extent:
XMin: -390000.0
YMin: -1200000.0
XMax: -315000.0
YMax: -1162000.0
Spatial Reference: 102067
(5514)
Units: esriMeters
Supported Image Format Types: PNG32,PNG24,PNG,JPG,DIB,TIFF,EMF,PS,PDF,GIF,SVG,SVGZ,BMP
Document Info:
Title: Map
Author:
Comments:
Subject:
Category:
Keywords: KH-9, HEXAGON, historical satellite imagery, 1975, High Tatras, Vysoké Tatry, Tatry, S-JTSK, Krovak East North, EPSG:5514, cached map service, tile cache, GIS, remote sensing, RETROCHANGE, EOSC, Slovakia, Poland
AntialiasingMode: Fast
TextAntialiasingMode: Force
Supports Dynamic Layers: false
Resampling: false
MaxRecordCount: 2000
MaxSelectionCount: 2000
MaxImageHeight: 4096
MaxImageWidth: 4096
Supported Query Formats: JSON, geoJSON, PBF
Supports Query Data Elements: true
Min Scale: 7773967.4532319373
Max Scale: 948.97063638085172
Min LOD: 7
Max LOD: 20
Supports Datum Transformation: true
Child Resources:
Info
Supported Operations:
Export Map
QueryLegends
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