asdi.ELEVATION.DEM_1M_2018_Project_Extents

SDE Feature Class

Tags
Elevation, Digital, LIDAR, DEM, Model


Summary

The Arkansas GIS Office created a mosaic Digtial Elevation Model and deployed as an image service. The tiles were acquired directly from the USGS's National Map and then aggregated and exposed in an ArcGIS Server Imagery Service. Additionally the data was organized in S3 to facilatate the capability to download the DEM for the area of need to create additional derivative or analysis using elevation data collected and processed through 3DEP.

Description

This is Statewide seamless 1 Meter Digital Elevation Model made up of both tiles of the National Elevation Dataset (NED) and tiles delivered as a function of the original project specifications in deliverables. Data in this layer represent a bare earth surface. The National Elevation Dataset (NED) serves as the elevation layer of The National Map, and provides basic elevation information for earth science studies and mapping applications in the United States. Scientists and resource managers use NED data for global change research, hydrologic modeling, resource monitoring, mapping and visualization, and many other applications. The NED is an elevation dataset that consists of seamless layers and non-seamless high resolution layers. Each of the seamless layers are composed of the best available raster elevation data of the conterminous United States, Alaska, Hawaii, territorial islands, Mexico and Canada. The NED is updated continually as new data become available. All NED data are in the public domain. The NED is derived from diverse source data that are processed to a common coordinate system and unit of vertical measure. The spatial reference used for tiles of the one meter layer within the conterminous United States (CONUS) is Universal Transverse Mercator (UTM) in units of meters, and in conformance with the North American Datum of 1983 (NAD83). All bare earth elevation values are in meters and are referenced to the North American Vertical Datum of 1988 (NAVD88). Each tile is distributed in the UTM Zone in which it lies. If a tile crosses two UTM Zones, it is delivered in both zones. Only source data of one meter resolution or finer are used to produce the NED standard one meter layer

Credits

USGS produced DEMs, aggregated by Arkansas GIS Office

Use limitations

Extent

West  -94.680664    East  -89.396150
North  36.775840    South  32.940870

Scale Range

ArcGIS Metadata 

Topics and Keywords 

Themes or categories of the resource  elevation


*Content type  Downloadable Data


Other keywords  Elevation, Digital, LIDAR, DEM, Model

Citation 

*Title asdi.ELEVATION.DEM_1M_2018_Project_Extents
Creation date 2018-09-18 00:00:00


Presentation formats  digital map


Resource Details 

Dataset languages  English (UNITED STATES)
Dataset character set  utf8 - 8 bit UCS Transfer Format


Spatial representation type  grid


*Processing environment Microsoft Windows 7 Version 6.1 (Build 7601) Service Pack 1; Esri ArcGIS 10.6.0.8321


Credits
USGS produced DEMs, aggregated by Arkansas GIS Office

ArcGIS item properties
*Name asdi.ELEVATION.DEM_1M_2018_Project_Extents
*Location Server=170.94.248.50; Service=sde:sqlserver:170.94.248.50; Database=asdi; User=elevation; Version=dbo.DEFAULT
*Access protocol ArcSDE Connection

Extents 

Extent
Geographic extent
Bounding rectangle
West longitude -94.680664
East longitude -89.396152
South latitude 32.94087
North latitude 36.77584
Extent contains the resource Yes

Extent
Geographic extent
Bounding rectangle
Extent type  Extent used for searching
*West longitude -94.680664
*East longitude -89.396150
*North latitude 36.775840
*South latitude 32.940870
*Extent contains the resource Yes

Extent in the item's coordinate system
*West longitude 349994.000000
*East longitude 821884.150400
*South latitude 3649994.000300
*North latitude 4070006.000300
*Extent contains the resource Yes

Spatial Reference 

ArcGIS coordinate system
*Type Projected
*Geographic coordinate reference GCS_North_American_1983
*Projection NAD_1983_UTM_Zone_15N
*Coordinate reference details
Projected coordinate system
Well-known identifier 26915
X origin -5120900
Y origin -9998100
XY scale 10000
Z origin 0
Z scale 1
M origin 0
M scale 1
XY tolerance 0.001
Z tolerance 0.001
M tolerance 0.001
High precision true
Latest well-known identifier 26915
Well-known text PROJCS["NAD_1983_UTM_Zone_15N",GEOGCS["GCS_North_American_1983",DATUM["D_North_American_1983",SPHEROID["GRS_1980",6378137.0,298.257222101]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Transverse_Mercator"],PARAMETER["False_Easting",500000.0],PARAMETER["False_Northing",0.0],PARAMETER["Central_Meridian",-93.0],PARAMETER["Scale_Factor",0.9996],PARAMETER["Latitude_Of_Origin",0.0],UNIT["Meter",1.0],AUTHORITY["EPSG",26915]]

Reference system identifier
Value 26915
*Codespace EPSG
*Version 6.13(3.0.1)


Spatial Data Properties 

Georectified Grid
Number of dimensions 2


Axis dimensions properties
Dimension type  column (x-axis)
Dimension size 471890
Resolution  1.000000 m (meter)

Axis dimensions properties
Dimension type  row (y-axis)
Dimension size 420012
Resolution  1.000000 m (meter)

Cell geometry  area
Point in pixel  center


Transformation parameters are available Yes


Check points are available No


Corner points
Point 821883.997884 4070006.000100
GML Properties
Unique identifier ID0EUFAC
Point 349994.002597 4070006.000100
GML Properties
Unique identifier ID0EOFAC
Point 349994.002597 3649994.004295
GML Properties
Unique identifier ID0EIFAC
Point 821883.997884 3649994.004295
GML Properties
Unique identifier ID0E1FAC

Center point 585939.000240 3860000.002198
GML Properties
Unique identifier ID0EAGAC



Vector
*Level of topology for this dataset  geometry only


Geometric objects
Feature class name asdi.ELEVATION.DEM_1M_2018_Project_Extents
*Object type  composite
*Object count 36



ArcGIS Feature Class Properties
Feature class name asdi.ELEVATION.DEM_1M_2018_Project_Extents
*Feature type Simple
*Geometry type Polygon
*Has topology FALSE
*Feature count 36
*Spatial index TRUE
*Linear referencing FALSE



Spatial Data Content 

Image Description
Type of information  image


Band information
Description Band_1
Maximum value 824.448914
Minimum value 16.296442
Units
GML Properties
Unique identifier ID0EIIAC
Identifier Unified Code of Units of Measure
Codespace GML_UomSymbol

Number of bits per value 32


Geoprocessing history 

Process
Date 2018-09-11 09:41:23
Tool location c:\program files (x86)\arcgis\desktop10.5\ArcToolbox\Toolboxes\Data Management Tools.tbx\CopyFeatures
Command issued
CopyFeatures DEM_1M_2018\Footprint E:\DEM_1M_2018\Project.gdb\DEM_1M_Project_Footprint_Update # 0 0 0
Include in lineage when exporting metadata No


Process
Date 2018-09-12 10:06:55
Tool location c:\program files (x86)\arcgis\desktop10.5\ArcToolbox\Toolboxes\Conversion Tools.tbx\FeatureClassToFeatureClass
Command issued
FeatureClassToFeatureClass E:\DEM_1M_2018\Project.gdb\DEM_1M_Project_Footprint_Update "Database Connections\WEB2_ASDI_ELEVATION.sde" DEM_1M_Project_Footprint_Update # "Raster "Raster" true true false 0 Long 0 0 ,First,#,E:\DEM_1M_2018\Project.gdb\DEM_1M_Project_Footprint_Update,Raster,-1,-1;Name "Name" true true false 200 Text 0 0 ,First,#,E:\DEM_1M_2018\Project.gdb\DEM_1M_Project_Footprint_Update,Name,-1,-1;MinPS "MinPS" true true false 8 Double 0 0 ,First,#,E:\DEM_1M_2018\Project.gdb\DEM_1M_Project_Footprint_Update,MinPS,-1,-1;MaxPS "MaxPS" true true false 8 Double 0 0 ,First,#,E:\DEM_1M_2018\Project.gdb\DEM_1M_Project_Footprint_Update,MaxPS,-1,-1;LowPS "LowPS" true true false 8 Double 0 0 ,First,#,E:\DEM_1M_2018\Project.gdb\DEM_1M_Project_Footprint_Update,LowPS,-1,-1;HighPS "HighPS" true true false 8 Double 0 0 ,First,#,E:\DEM_1M_2018\Project.gdb\DEM_1M_Project_Footprint_Update,HighPS,-1,-1;Category "Category" true true false 4 Long 0 0 ,First,#,E:\DEM_1M_2018\Project.gdb\DEM_1M_Project_Footprint_Update,Category,-1,-1;Tag "Tag" true true false 100 Text 0 0 ,First,#,E:\DEM_1M_2018\Project.gdb\DEM_1M_Project_Footprint_Update,Tag,-1,-1;GroupName "GroupName" true true false 100 Text 0 0 ,First,#,E:\DEM_1M_2018\Project.gdb\DEM_1M_Project_Footprint_Update,GroupName,-1,-1;ProductName "ProductName" true true false 100 Text 0 0 ,First,#,E:\DEM_1M_2018\Project.gdb\DEM_1M_Project_Footprint_Update,ProductName,-1,-1;CenterX "CenterX" true true false 8 Double 0 0 ,First,#,E:\DEM_1M_2018\Project.gdb\DEM_1M_Project_Footprint_Update,CenterX,-1,-1;CenterY "CenterY" true true false 8 Double 0 0 ,First,#,E:\DEM_1M_2018\Project.gdb\DEM_1M_Project_Footprint_Update,CenterY,-1,-1;ZOrder "ZOrder" true true false 4 Long 0 0 ,First,#,E:\DEM_1M_2018\Project.gdb\DEM_1M_Project_Footprint_Update,ZOrder,-1,-1;TypeID "Raster Type ID" true true false 4 Long 0 0 ,First,#,E:\DEM_1M_2018\Project.gdb\DEM_1M_Project_Footprint_Update,TypeID,-1,-1;ItemTS "ItemTS" true true false 8 Double 0 0 ,First,#,E:\DEM_1M_2018\Project.gdb\DEM_1M_Project_Footprint_Update,ItemTS,-1,-1;UriHash "UriHash" true true false 50 Text 0 0 ,First,#,E:\DEM_1M_2018\Project.gdb\DEM_1M_Project_Footprint_Update,UriHash,-1,-1;Uri "Uri" true true false 0 Blob 0 0 ,First,#,E:\DEM_1M_2018\Project.gdb\DEM_1M_Project_Footprint_Update,Uri,-1,-1;Shape_Length "Shape_Length" false true true 8 Double 0 0 ,First,#,E:\DEM_1M_2018\Project.gdb\DEM_1M_Project_Footprint_Update,Shape_Length,-1,-1;Shape_Area "Shape_Area" false true true 8 Double 0 0 ,First,#,E:\DEM_1M_2018\Project.gdb\DEM_1M_Project_Footprint_Update,Shape_Area,-1,-1" #
Include in lineage when exporting metadata No


Distribution 

Distribution format
*Name SDE Feature Class


Fields 

Details for object asdi.ELEVATION.DEM_1M_2018_Project_Extents 
*Type Feature Class
*Row count 36


Field OBJECTID
 
*Alias OBJECTID
*Data type OID
*Width 4
*Precision 10
*Scale 0
*Field description
Internal feature number.

*Description source
Esri

*Description of values
Sequential unique whole numbers that are automatically generated.





Field Shape
 
*Alias Shape
*Data type Geometry
*Width 4
*Precision 0
*Scale 0
*Field description
Feature geometry.

*Description source
Esri

*Description of values
Coordinates defining the features.





Field Raster
 
*Alias Raster
*Data type Raster
*Width 4
*Precision 0
*Scale 0




Field Name
 
*Alias Name
*Data type String
*Width 200
*Precision 0
*Scale 0




Field MinPS
 
*Alias MinPS
*Data type Double
*Width 8
*Precision 38
*Scale 8




Field MaxPS
 
*Alias MaxPS
*Data type Double
*Width 8
*Precision 38
*Scale 8




Field LowPS
 
*Alias LowPS
*Data type Double
*Width 8
*Precision 38
*Scale 8




Field HighPS
 
*Alias HighPS
*Data type Double
*Width 8
*Precision 38
*Scale 8




Field Category
 
*Alias Category
*Data type Integer
*Width 4
*Precision 10
*Scale 0




Field Tag
 
*Alias Tag
*Data type String
*Width 100
*Precision 0
*Scale 0




Field GroupName
 
*Alias GroupName
*Data type String
*Width 100
*Precision 0
*Scale 0




Field ProductName
 
*Alias ProductName
*Data type String
*Width 100
*Precision 0
*Scale 0




Field CenterX
 
*Alias CenterX
*Data type Double
*Width 8
*Precision 38
*Scale 8




Field CenterY
 
*Alias CenterY
*Data type Double
*Width 8
*Precision 38
*Scale 8




Field ZOrder
 
*Alias ZOrder
*Data type Integer
*Width 4
*Precision 10
*Scale 0




Field TypeID
 
*Alias Raster Type ID
*Data type Integer
*Width 4
*Precision 10
*Scale 0




Field ItemTS
 
*Alias ItemTS
*Data type Double
*Width 8
*Precision 38
*Scale 8




Field UriHash
 
*Alias UriHash
*Data type String
*Width 50
*Precision 0
*Scale 0




Field Uri
 
*Alias Uri
*Data type Blob
*Width 0
*Precision 0
*Scale 0




Field Shape.STArea()
 
*Alias Shape.STArea()
*Data type Double
*Width 0
*Precision 0
*Scale 0




Field Shape.STLength()
 
*Alias Shape.STLength()
*Data type Double
*Width 0
*Precision 0
*Scale 0






Metadata Details 

Metadata language English (UNITED STATES)
Metadata character set  utf8 - 8 bit UCS Transfer Format


Scope of the data described by the metadata  dataset
Scope name* dataset


*Last update 2018-09-18


ArcGIS metadata properties
Metadata format ArcGIS 1.0
Metadata style ISO 19139 Metadata Implementation Specification


Created in ArcGIS for the item 2018-09-11 09:41:22
Last modified in ArcGIS for the item 2018-09-18 12:23:39


Automatic updates
Have been performed Yes
Last update 2018-09-18 12:23:39


Metadata Contacts 

Metadata contact
Individual's name Arkansas GIS Office
Contact's role  distributor


FGDC Metadata (read-only) 

Entities and Attributes