Fort Fairfield 2003

Identification Information

Citation Information

Originator	Bradstreet Consultants, Inc. (www.bradstreet.com), Maine Office of Geographic Information Systems (comp.)
Publication Date	20040216
Title	Fort Fairfield 2003
Geospatial Data Presentation Form	remote-sensing image
Series Name	Maine GIS
Publication Place	Augusta ME
Publisher	Maine Office of Geographic Information Systems (MEGIS)
Other Citation Details	Fort Fairfield 2003 consists of high resolution, 24-bit color orthophotography. Flown in May 2003 the ortho-rectified digital imagery covers all of Fort Fairfield, Maine. These digital images have a pixel resolution (or ground sample distance GSD) of 1/2 foot, are precision geo-referenced and ortho-rectified, and accurate for 1"=100' mapping applications. The digital orthoimagery has been made available by the Bradstreet Consultants, Inc. and the Town of Fort Fairfield.Original file sizes were: 100 images at 1800 meters by 1200 meters, butt matched with no overlap and an image file size of 281 MB; and 24 images at 900 meters by 600 meters, with a file size of 70 MB and also butt matched with no overlap. For distribution in the Maine GIS Internet Data Catalog the 24, 900 meter x 600 meter files, were appended into 6, 1800 meter by 1200 meter files. The lower left or southwestern-most photo number was used to identify each of the appended tiles. A file index, INDEX_FF reflects this change recording 106 reference numbers.
Online Linkage	http://megis.maine.gov/maps/

Abstract

Fort Fairfield, Maine was compiled by Bradstreet Consultants, Inc. in the year 2003. Features were collected from aerial photography taken May 20, 2003. Airborne GPS, IMU, and ground control were all used to control the project. All features were compiled in Kork Digital Mapping System then translated using AutoCAD to files for use in ArcGIS. The orthophotography has a ground spacing value of 0.15 meters or 1/2 foot GSD and provide a digital photographic map suitable for applications requiring a 1:1200 National Map Accuracy Standard (NMAS).

Purpose

To provide accurate orthorectified imagery covering the Town of Fort Fairfield.

Time Period of Content

Calendar Date	20030520
Currentness Reference	ground condition

Status

Progress	Complete
Maintenance and Update Frequency	As needed

Bounding Coordinates

West Bounding Coordinate	-67.92791
East Bounding Coordinate	-67.78475
North Bounding Coordinate	46.87213
South Bounding Coordinate	46.68658

Keywords

Theme	imageryBaseMapsEarthCover (ISO Keyword Thesaurus)
Theme	aerial photograph, color imagery 24-bit, ortho-rectified digital image, ground sample distance 1/2 foot (Maine GIS Thesaurus-Theme)
Place	Aroostook County, Maine, Fort Fairfield, United States (Maine GIS Thesaurus-Place)
Stratum	land surface, radiance or imagery (GCMD Parameter Keyword)

Access Constraints

none

Use Constraints

none

Contact Organization

Bradstreet Consultants, Inc.

Contact Position

President

Address Type

physical address

Address

962 Western Avenue/PO Box 488

City

Manchester

State or Province

Postal Code

04351

Country

USA

Contact Voice Telephone

(207) 621 8500

Contact Facsimile Telephone

(207) 621 0033

Data Set Credit

Orthophotography provided by Bradstreet Consultants, Inc. and the Town of Fort Fairfield.

Native Data Set Environment

Ortho-rectified Digital Image Mosaics were delivered by Bradstreet Consultants Inc. in a TIFF raster file format (with World file). (BRADSTREET) Microsoft Windows 2000, Version 5.0 (Build 2195) Service Pack 4.

Logical Consistency Report

Standard practices dictate that all photogrammetric data be field checked prior to use. The data collected meets or exceeds American Society of Photogrammetry and Remote Sensing (ASPRS) Class I standards for accuracy and content.

Completeness Report

In accordance with ASPRS Class I standards for planimetric and topographic mapping.

Horizontal Positional Accuracy Report

The accuracy and quality of the digital orthoimagery in Fort Fairfield 2003 meet National Map Accuracy Standards 1:1,200 scale, plus/minus 1 meter or 3.33 feet, and is accurate for mapping applications at 1" = 100'.

Horizontal Positional Accuracy Value

Horizontal Positional Accuracy Explanation

Digital file features include high quality ground-level georeferencing, derived from accurate positioning and geometric corrections, and provide a digital photographic map suitable for applications requiring a 1:1200 National Map Accuracy Standard (NMAS).

Citation Information

Originator	James W. Sewall Company
Title	(JWSCLR12000) 1:12,000 Color Aerial Photography
Geospatial Data Presentation Form	remote-sensing image

Beginning Date

20030520

Beginning Time

unknown

Ending Date

20050620

Ending Time

unknown

Source Currentness Reference

ground condition

Citation Information

Originator	James W. Sewall Company
Title	(JWSCLR6000) 1:6,000 Color Aerial Photography
Geospatial Data Presentation Form	remote-sensing image

Source Scale Denominator

6000

Type of Source Media

filmstrip

Beginning Date

20030301

Beginning Time

Unknown

Ending Date

20050620

Ending Time

Unknown

Source Currentness Reference

ground condition

Source Citation Abbreviation

jwsclr6000

Process Description

Stereoscopic compilation using analytical stereoplotters into the KORK digital mapping system, translated to AutoCAD .DWG for use in ArcGIS.

Process Date

20040216

Contact Organization

Bradstreet Consultants, Inc.

Contact Position

President

Address Type

physical address

Address

962 Western Avenue/PO Box 488

City

Manchester

State or Province

Postal Code

04351

Country

USA

Contact Voice Telephone

(207) 621 8500

Contact Facsimile Telephone

(207) 621 0033

Indirect Spatial Reference

106 images all of Town of Fort Fairfield

Direct Spatial Reference Method

Raster

Raster Object Type

Pixel

Row Count

144001

Column Count

72001

Grid Coordinate System Name

Universal Transverse Mercator

UTM Zone Number

Scale Factor at Central Meridian

0.9996

Longitude of Central Meridian

-69

Latitude of Projection Origin

False Easting

500000

False Northing

Planar Coordinate Encoding Method

Abscissa Resolution

Ordinate Resolution

Horizontal Datum Name

North American Datum of 1983

Ellipsoid Name

Geodetic Reference System 80

Semi-major Axis

6378137

Denominator of Flattening Ratio

298.257

Contact Organization

Maine Office of Geographic Information Systems

Contact Position

GIS Coordinator

Address Type

mailing address

Address

State House Station 174

City

Augusta

State or Province

Postal Code

04333-0174

Country

USA

Contact Voice Telephone

(207) 624-7700

Contact Facsimile Telephone

(207) 287-3842

Hours of Service

Monday through Friday 0800 - 1700 EST

Distribution Liability

Users must assume responsibility to determine the usability of this data for their purposes.

Format Name

WMS

Format Version Number

1.1

Format Specification

OpenGIS (OGC) Web Map Service (WMS)

Format Information Content

The Maine Office of GIS and the GeoLibrary Board provide web mapping services to distribute aerial photos and other digital data.

Network Resource Name

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

[accinstr]

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.

Fees

None

Metadata Reference Information

Metadata Date

20040216

Metadata Review Date

20100119

Metadata Contact

Contact Organization	(MEGIS) Maine Office of Geographic Information Systems
Contact Person	GIS Coordinator
Contact Position	GIS Coordinator
Address Type	mailing address
Address	State House Station 174
City	Augusta
State or Province	ME
Postal Code	04333-0174
Country	USA
Contact Voice Telephone	207 624-7700
Contact Facsimile Telephone	207 287-3842
Hours of Service	Monday through Friday 0800 - 1700 EST

Metadata Standard Name

FGDC Content Standards for Digital Geospatial Metadata

Metadata Standard Version

FGDC-STD-001-1998

Metadata Access Constraints

none

Metadata Use Constraints

none