Lewiston_Auburn 2006

Identification Information

Citation Information

Originator	James W. Sewall Company
Publication Date	2006
Title	Lewiston_Auburn 2006

Keywords

Theme	ImageryBaseMapsEarthCover (ISO Keyword Thesaurus - Theme)
Theme	Digital orthophotos, Digital image map, Aerial photography, rectified photograph, rectified image, orthophoto, GSD .075m (none)

Contact Person

Jim Ward

Contact Organization

City of Lewiston

Contact Position

GIS Manager

Address Type

mailing and physical address

Address

City Building - 27 Pine Street

City

Lewiston

State or Province

Maine

Postal Code

04240

Country

USA

Contact Voice Telephone

207-513-3000

Contact Electronic Mail Address

jward@ci.lewiston.me.us

Abstract

This OGC-compliant web mapping service (WMS) provides 3" pixel resolution orthoimagery of the cities of Lewiston/Auburn ME. This WMS is provided by the Maine Office of GIS and the Maine GeoLibrary Board. Lewiston/Auburn 2006 3" orthoimagery - As the prime contractor, James W. Sewall Company. used the aerial photography flown in one session on April 9th, 2006. Data were collected at an altitude of 7200' using a 6" Zeiss RMK camera with FMC. The film scale was 1" = 600', scanned at a resolution of 2540dpi (10 microns). Orthophotos were produced to meet ASPRS class 1 specifications for 1"=100' (1:1200) mapping, or a horizontal accuracy of about 1 foot with a 3-inch ground pixel resolution.

Purpose

Use in GIS for viewing and analysis along with sale to surveying, engineering, GIS and other intersted individuals and companies.

[langdata]

English

Time Period of Content

Calendar Date	20060409
Currentness Reference	ground condition

Status

Progress	Complete
Maintenance and Update Frequency	None planned

Bounding Coordinates

West Bounding Coordinate	-70.11
East Bounding Coordinate	-70.36
North Bounding Coordinate	44.26
South Bounding Coordinate	43.97

Access Constraints

none

Use Constraints

Data should not be used beyond the scale of 1:1200.

Data Set Credit

Cities of Lewiston/Auburn, James W. Sewall Company.

Native Data Set Environment

Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 2; ESRI ArcCatalog 9.3.1.3000

Completeness Report

Orthoimagery for Lewiston/Auburn clipped to roughly 100m beyond the city boundaries, and including extra area in Buckfield, Hebron, Poland, and Turner.

Horizontal Positional Accuracy Report

Data meets ASPRS class 1 accuracy standards for 1" = 100' (1:1200) orthophots, or horizontal accuracy of 1 foot.

Process Description

Lewiston/Auburn 2006 3" orthoimagery - As the prime contractor, James W. Sewall Company. used the aerial photography flown in one session on April 9th, 2006. Data were collected at an altitude of 7200' using a 6" Zeiss RMK camera with FMC. The film scale was 1" = 600', scanned at a resolution of 2540dpi (10 microns). Orthophotos were produced to meet ASPRS class 1 specifications for 1"=100' (1:1200) mapping, or a horizontal accuracy of about 1 foot with a 3-inch ground pixel resolution.

Direct Spatial Reference Method

Raster

Raster Object Type

Pixel

Row Count

Column Count

Grid Coordinate System Name

SPCS Zone Identifier

26984

Horizontal Datum Name

North American Datum of 1983

Ellipsoid Name

Geodetic Reference System 80

Network Resource Name

http://www.maine.gov/geolib/wms.htm

[accinstr]

The Maine Office of GIS and the GeoLibrary Board provide web mapping services to distribute aerial photos and other digital data. A WMS is not a web application which you can see in a web browser; rather, it requires you to add the service to a GIS software application.

[ModDate]

20100330

[ModTime]

10121400

Metadata Reference Information

Metadata Date

20100330

[Sync]

TRUE

Metadata Contact

Contact Organization	James W. Sewall Company

[mdDateSt]

20100330

[Sync]

TRUE