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Service Description: Data set compiled originally to provide the National Water Quality Assessment (NAWQA) study units with an intermediate-scale river basin boundary. @@ (Saturday, November 16, 2019)
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Description: The Geographic Information Retrieval and Analysis System (GIRAS) was developed in the mid 70s to put into digital form a number of data layers which were of interest to the USGS. One of these data layers was the Hydrologic Units. The map is based on the Hydrologic Unit Maps published by the U.S. Geological Survey Office of Water Data Coordination, together with the list descriptions and name of region, subregion, accounting units, and cataloging unit. The hydrologic units are encoded with an eight- digit number that indicates the hydrologic region (first two digits), hydrologic subregion (second two digits), accounting unit (third two digits), and cataloging unit (fourth two digits).
The data produced by GIRAS was originally collected at a scale of 1:250K. Some areas, notably major cities in the west, were recompiled at a scale of 1:100K. In order to join the data together and use the data in a geographic information system (GIS) the data were processed in the ARC/INFO GUS software package. Within the GIS, the data were edgematched and the neatline boundaries between maps were removed to create a single data set for the conterminous United States.
Copyright Text: NCDOT GIS Unit
Spatial Reference:
102719
(2264)
Single Fused Map Cache: false
Initial Extent:
XMin: 2036538.5761996922
YMin: 149880.27880356717
XMax: 2849062.1947470657
YMax: 842117.3819781798
Spatial Reference: 102719
(2264)
Full Extent:
XMin: 201500.97832669318
YMin: -223693.4398844838
XMax: 3052161.746810019
YMax: 1313891.2096776068
Spatial Reference: 102719
(2264)
Units: esriFeet
Supported Image Format Types: PNG32,PNG24,PNG,JPG,DIB,TIFF,EMF,PS,PDF,GIF,SVG,SVGZ,BMP
Document Info:
Title: NCDOT HUC8 for ESM application
Author:
Comments: The Geographic Information Retrieval and Analysis System (GIRAS) was developed in the mid 70s to put into digital form a number of data layers which were of interest to the USGS. One of these data layers was the Hydrologic Units. The map is based on the Hydrologic Unit Maps published by the U.S. Geological Survey Office of Water Data Coordination, together with the list descriptions and name of region, subregion, accounting units, and cataloging unit. The hydrologic units are encoded with an eight- digit number that indicates the hydrologic region (first two digits), hydrologic subregion (second two digits), accounting unit (third two digits), and cataloging unit (fourth two digits).
The data produced by GIRAS was originally collected at a scale of 1:250K. Some areas, notably major cities in the west, were recompiled at a scale of 1:100K. In order to join the data together and use the data in a geographic information system (GIS) the data were processed in the ARC/INFO GUS software package. Within the GIS, the data were edgematched and the neatline boundaries between maps were removed to create a single data set for the conterminous United States.
Subject: Data set compiled originally to provide the National Water Quality Assessment (NAWQA) study units with an intermediate-scale river basin boundary.
Category:
Keywords: NC,North Carolina,NCDOT,ESM
AntialiasingMode: None
TextAntialiasingMode: Force
Supports Dynamic Layers: true
MaxRecordCount: 1000
MaxImageHeight: 4096
MaxImageWidth: 4096
Supported Query Formats: JSON, geoJSON, PBF
Supports Query Data Elements: true
Min Scale: 0
Max Scale: 400000
Supports Datum Transformation: true
Child Resources:
Info
Dynamic Layer
Supported Operations:
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