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Contours_2ft

ESRI Shapefile

Tags
elevation, lidar, topography, contour


Summary

To depict high-resolution elevation data using contour lines.

Description

This is a composite data layer of 2' contours created from lidar data collected in Maine between 2006 and 2013. The contours were created using GDAL tools and an interval of 2'. Due to the fact that some areas were collected at high tide, some areas do not have contours that have a zero-value. The data are referenced to NAVD88. Vertical accuracy is 12cm or better.

Credits

Maine Office of GIS, Maine GeoLibrary Board

Use limitations

Users must assume responsibility in determining the usability of this data for their purposes. Digital maps retain the accuracy of their source materials. The best use of data mapped at scales of 1:500,000 and 1:250,000 is in statewide planning and studies; at 1:100,000 in regional planning and studies; at 1:62,500 and 1:24,000 in detailed studies and local planning; and at 1:12,000 and 1:5,000 or larger scales in parcel level studies and detailed local planning. In the use of Maine GIS data, please check sources, scale, accuracy, currentness and other available information. Please confirm that you are using the correct copy of both data and metadata from the Maine GIS Data Catalog. Updates, corrections, and feedback, incorporated in the Maine GIS database are made in accordance with "Data Standards for Maine Geographic Information Systems", 2002, and coordinated by MEGIS

Extent

West  -71.152998  East  -66.848315
North  47.405325  South  42.969299

Scale Range
Maximum (zoomed in)  1:5,000
Minimum (zoomed out)  1:150,000,000

ArcGIS Metadata 

Topics and Keywords 

Themes or categories of the resource  elevation


*Content type  Downloadable Data
Export to FGDC CSDGM XML format as Resource Description No

Theme keywords  elevation, lidar, topography, contour

Citation 

*Title GISVIEW.MEGIS.Contours_2ft
Publication date 2015-02-02 00:00:00


Presentation formats  digital map
FGDC geospatial presentation format  vector digital data


Other citation details Data is a range of dates between 2006 and 2013 - please see the date index for Lidar available on the MEGIS data catalog for specific tile dates.


Citation Contacts 

Responsible party
Organization's name Maine Office of Geographic Information Systems
Contact's position GIS Coordinator
Contact's role  originator


Contact information
Phone
Voice 207-624-7700

Address
Type postal
Delivery point State House Station #145
City Augusta
Administrative area Maine
Postal code 04333
Country USA
e-mail addressOIT.Customer-Support@maine.gov

Hours of service 9 am to 5 pm EST
Contact instructions
Monday through Friday


Resource Details 

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


Status  on-going
Spatial representation type  vector


Supplemental information
Additional contours data will be added as more Lidar becomes available for Maine.
*Processing environment Microsoft Windows Server 2003 Version 5.2 (Build 3790) Service Pack 2; Esri ArcGIS 10.1.1.3143


Credits
Maine Office of GIS, Maine GeoLibrary Board
ArcGIS item properties
*Name GISVIEW.MEGIS.Contours_2ft
*Location Server=sql-gisview-prod.som.w2k.state.me.us; Service=sde:sqlserver:sql-gisview-prod.som.w2k.state.me.us,1633; Database=GISVIEW; User=MEGIS; Version=dbo.DEFAULT
*Access protocol ArcSDE Connection

Extents 

Extent
Geographic extent
Bounding rectangle
Extent type  Extent used for searching
*West longitude -71.152998
*East longitude -66.848315
*North latitude 47.405325
*South latitude 42.969299
*Extent contains the resource Yes

Extent
Description
Multiple dates between 2006 and 2013
Temporal extent
Beginning date 2006-03-01 00:00:00
Ending date 2013-12-31 00:00:00

Extent in the item's coordinate system
*West longitude 337500.000000
*East longitude 662400.818300
*South latitude 4759332.000000
*North latitude 5250208.000000
*Extent contains the resource Yes

Resource Points of Contact 

Point of contact
Organization's name Maine Office of Geographic Information Systems
Contact's position GIS Coordinator
Contact's role  point of contact


Contact information
Phone
Voice 207-624-7700

Address
Type postal
Delivery point State House Station #145
City Augusta
Administrative area Maine
Postal code 04333
Country USA
e-mail addressOIT.Customer-Support@maine.gov

Hours of service 9 am to 5 pm EST
Contact instructions
Monday through Friday


Resource Maintenance 

Resource maintenance
Update frequency  as needed


Resource Constraints 

Legal constraints
Limitations of use
See access and use constraints information.
Constraints
Limitations of use
Users must assume responsibility in determining the usability of this data for their purposes. Digital maps retain the accuracy of their source materials. The best use of data mapped at scales of 1:500,000 and 1:250,000 is in statewide planning and studies; at 1:100,000 in regional planning and studies; at 1:62,500 and 1:24,000 in detailed studies and local planning; and at 1:12,000 and 1:5,000 or larger scales in parcel level studies and detailed local planning. In the use of Maine GIS data, please check sources, scale, accuracy, currentness and other available information. Please confirm that you are using the correct copy of both data and metadata from the Maine GIS Data Catalog. Updates, corrections, and feedback, incorporated in the Maine GIS database are made in accordance with "Data Standards for Maine Geographic Information Systems", 2002, and coordinated by MEGIS

Spatial Reference 

ArcGIS coordinate system
*Type Projected
*Geographic coordinate reference GCS_North_American_1983
*Projection NAD_1983_UTM_Zone_19N
*Coordinate reference details
Projected coordinate system
Well-known identifier 26919
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 26919
Well-known text PROJCS["NAD_1983_UTM_Zone_19N",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",-69.0],PARAMETER["Scale_Factor",0.9996],PARAMETER["Latitude_Of_Origin",0.0],UNIT["Meter",1.0],AUTHORITY["EPSG",26919]]

Reference system identifier
*Value 26919
*Codespace EPSG
*Version 7.11.2


Spatial Data Properties 

Vector
*Level of topology for this dataset  geometry only


Geometric objects
Feature class name GISVIEW.MEGIS.Contours_2ft
*Object type  composite
*Object count 6081094



ArcGIS Feature Class Properties
Feature class name GISVIEW.MEGIS.Contours_2ft
*Feature type Simple
*Geometry type Polyline
*Has topology FALSE
*Feature count 6081094
*Spatial index TRUE
*Linear referencing FALSE



Distribution 

Distributor
Contact information
Organization's name Maine Office of Geographic Information Systems
Contact's position GIS Coordinator
Contact's role  distributor


Contact information
Phone
Voice 207-624-7700

Address
Type postal
Delivery point State House Station #145
City Augusta
Administrative area Maine
Postal code 04333
Country US
e-mail addressOIT.Customer-Support@maine.gov

Hours of service 9 am to 5 pm EST
Contact instructions
Monday through Friday


Available format
Name ESRI Shapefile
Version ArARC Version 10.x
File decompression technique Data available from this website is in .zip compressed format.
Format information content MEGIS publishes all vector layers in the Maine GIS Internet Data Catalog in ESRI's shapefile format. A shapefile is a simple non-topological format that stores the geometry and attribute information for a set of geographic features as a set of vector (point, line, polygon) coordinates. Shapefiles draw quickly and directly in ArcView, ArcGIS and ArcExplorer. Shapefiles are a compatible data type for many other types of GIS software. Three files are fundamental to each shapefile: .shp stores the feature geometry (shape and location information); .shx stores the index of the feature geometry; .dbf a dBASE (TM) file stores the attribute information for the features. Other index files may be created to help speed analysis and query: these file formats are .sbn .sbx .ain .aix .fbn and .fbx. In addition you may find projection .prj and metadata .xml, files associated with shapefiles.


Transfer options
Online source
Locationhttps://www.maine.gov/megis/catalog/
Description  Provides geospatial data via a public access website



Distribution format
*Name SDE Feature Class


Fields 

Details for object GISVIEW.MEGIS.Contours_2ft 
*Type Feature Class
*Row count 6081094
Definition
vector line shapefile
Definition source
MEGIS


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 LENGTH
 
*Alias LENGTH
*Data type Double
*Width 8
*Precision 38
*Scale 8




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




Field ELEV_M
 
*Alias ELEV_M
*Data type Integer
*Width 4
*Precision 10
*Scale 0
Field description
Elevation in meters
Description source
MEGIS


Field ELEV_FT
 
*Alias ELEV_FT
*Data type Integer
*Width 4
*Precision 10
*Scale 0
Field description
Elevation in feet
Description source
MEGIS


Field SHAPE.len
 
*Alias SHAPE.len
*Data type Double
*Width 0
*Precision 0
*Scale 0
Field description
Length of the feature
Description source
ESRI


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.






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 2015-03-30


ArcGIS metadata properties
Metadata format ArcGIS 1.0
Metadata style FGDC CSDGM Metadata
Standard or profile used to edit metadata FGDC


Created in ArcGIS for the item 2015-03-20 12:39:20
Last modified in ArcGIS for the item 2015-03-30 13:08:38


Automatic updates
Have been performed Yes
Last update 2015-03-30 13:08:38


Metadata Contacts 

Metadata contact
Organization's name Maine Office of Geographic Information Systems
Contact's position GIS Coordinator
Contact's role  point of contact


Contact information
Phone
Voice 207-624-7700

Address
Type postal
Delivery point State House Station #145
City Augusta
Administrative area Maine
Postal code 04333
Country US
e-mail addressOIT.Customer-Support@maine.gov

Hours of service 9 am to 5 pm EST
Contact instructions
Monday through Friday


Metadata Maintenance 

Maintenance
Update frequency  unknown


Thumbnail and Enclosures 

FGDC Metadata (read-only) 

Entities and Attributes