Debsconeags 2005

Identification Information

Citation Information

Originator	Digital Globe
Publication Date	2005
Title	Debsconeags 2005
Geospatial Data Presentation Form	vector digital data
Series Name	Debsconeags Quickbird Imagery
Issue Identification	2005
Publication Place	Augusta ME
Publisher	Maine Office of Geographic Information Systems (MEGIS)
Online Linkage	http://www.maine.gov/geolib/wms.htm

Abstract

Dataset contains high resolution QuickBird orthorectified satellite imagery from Digital Globe. The data are presented in 3 8-bit bands with pixel resolution of 60cm and horizontal accuracy of 2.3m. These digital images result from pan-sharpening of multispectral data to panchromatic data, followed by orthorectification and mosaicking of digital satellite image scenes. The images were collected July 13, 2005, Sep 5, 2005, Sep 28, 2005, and Oct 29, 2005, by the QB02 Satellite using the QB sensor at an altitude of 450km. Each pixel represents a planimetric square 60cm on a side on the ground. The satellite data are presented in 3 bands (3 = blue light 450-520nm; 2 = green light 520-600nm; 1 = red light 630-690nm). The data are pan-sharpened from Quickbird's multispectral (4-band) 2.44m sensor to the 61-cm panchromatic (445-900nm) sensor using an algorithm from ESRI. The data were resampled to 60cm pixels during the reprojection process to UTM Zone 19N NAD83, which is the current projection. Each band is captured in 11 bits and presented here as 8-bit. The images were radiometrically balanced to the extent possible (limited by vastly different collect dates) to provide a smooth mosaic. Orthorectification was completed using the National Elevation Dataset as the terrain reference. The accuracy and quality of the Digital Globe orthoimagery meets National Map Accuracy Standards at 1:3,600 scale, plus/minus 3 meters or 10 feet, and is accurate for mapping applications at 1" = 300'. This imagery is LICENSED from Digital Globe, available to the following GIS users: Maine state agency GIS users, including the Baxter Park Authority University of Maine System The Nature Conservancy, Maine office Use by any other individual is a violation of the license agreement and illegal. The Debsconeags data were purchased cooperatively with The Nature Conservancy, Maine office.

Purpose

Data were purchased to provide updated orthoimagery in the Debsconeags region, an area which would otherwise not be covered under the GeoLibrary Board orthoimagery purchase. The imagery, at 60cm resolution and 2.3m RMS horizontal accuracy, are useful in many large-scale mapping applications for the park area.

Time Period of Content

Calendar Date	20050713
Time of Day	Unknown
Calendar Date	20050905
Time of Day	Unknown
Calendar Date	20050928
Time of Day	Unknown
Calendar Date	20051029
Time of Day	Unknown
Currentness Reference	ground condition

Status

Progress	Complete
Maintenance and Update Frequency	None planned

Bounding Coordinates

West Bounding Coordinate	-69.307068
East Bounding Coordinate	-68.930329
North Bounding Coordinate	45.880645
South Bounding Coordinate	45.66997

Keywords

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

Access Constraints

Secondary distribution of the digitial images is NOTallowed due to licensing issues. Entities wishing to aquire the imagery should contact the Maine Office of GIS.

Use Constraints

The imagery is LICENSED from Digital Globe, available to the following GIS users: Maine state agency GIS users, including the Baxter Park Authority University of Maine System The Nature Conservancy, Maine office Use by any other individual is a violation of the license agreement and illegal. License terms for state employees and local governments are as follows: DIGITALGLOBE, INC. U.S. STATE AND LOCAL CIVIL GOVERNMENT END USER LICENSE AGREEMENT FOR US IMAGERY PRODUCTS DigitalGlobe, Inc. ("DigitalGlobe") grants End User a non-transferable, non-exclusive license to use the DigitalGlobe? products delivered (collectively referred to as "Product" or "Products"), and to develop derived works of the Products. DigitalGlobe and End User may be referred to hereinafter individually as a "Party" and collectively as "Parties". All rights not expressly granted to End User are retained by DigitalGlobe. In consideration for the rights granted under this End User License Agreement ("License"), End User agrees to be bound to the terms herein and agrees that this License shall govern the rights and obligations of the Parties. In the event that this License is inconsistent with any license included with the Products in electronic form or physical form delivered with the Products, this License shall govern. 1. AUTHORIZED END USERS. This License applies to multiple users within multiple U.S. state and local civil government entities at multiple locations located within the United States ("End User"). 2. LICENSE ACCEPTANCE. The End User accepts and agrees to the terms of this License by doing any one of the following: (a) entering into a contract or purchase order for which this License is an exhibit or appendix; or (b) accepting, in whole or in part, a quotation describing the Product by any means (including the use of End User's purchase order, whether or not that purchase order contains inconsistent terms and condit

Contact Organization

(MEGIS) Maine Office of Geographic Information Systems

Contact Person

Mike Smith

Contact Position

GIS Manager

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

Contact Electronic Mail Address

michael.smith@maine.gov

Hours of Service

Monday through Friday 0800 - 1700 EST

Data Set Credit

Digital Globe, IAGT, Nature Conservancy.

Native Data Set Environment

Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 3; ESRI ArcCatalog 9.3.1.3500

Logical Consistency Report

Imagery covers an area adjacent to Baxter State Park on the southwest corner. Pixel resolution is 60cm with horizontal RMS error of about 2.3m.

Completeness Report

The imagery collection is complete in that the entire area was imaged according to specifications.

Horizontal Positional Accuracy Report

The Debsconeags data were orthorectified using NED to NMAS standards for 1:3600 data.

Process Description

Dataset is a seamless mosaic of QuickBird orthoimagery. QuickBird images were collected from the QuickBird satellite sensor at an altitude of 480km.Pan-sharpening of the Debsconeags data was performed by Maine DEP GIS staff using a proprietary ESRI algorithm distributed in ArcGIS 9.2 beta 2.The Debsconeags data were delivered in 8-bits by Digital Globe. Some tonal balancing was performed to create a smoother mosaic.Band reversal to create an RGB composite image was performed by Maine DEP GIS staff, as well as clipping output imagery to tiles of less than 16,000 pixels on a side (for compatibility with MapInfo).

Process Date

May 2006

Contact Person

Michael Smith

Contact Organization

Maine Office of GIS

Contact Position

GIS Manager

Address Type

mailing address

Address

State House Station #174

City

Augusta

State or Province

Maine

Postal Code

04333

Country

USA

Contact Voice Telephone

207-215-5530

Contact Facsimile Telephone

207-287-3842

Contact Electronic Mail Address

michael.smith@maine.gov

Cloud Cover

Direct Spatial Reference Method

Vector

SDTS Point and Vector Object Type

G-polygon

Point and Vector Object Count

[smcaptur]

false

Grid Coordinate System Name

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

0.0001

Ordinate Resolution

0.0001

Horizontal Datum Name

North American Datum of 1983

Ellipsoid Name

Geodetic Reference System 80

Semi-major Axis

6378137

Denominator of Flattening Ratio

298.257

Altitude Resolution

1.000000

Altitude Encoding Method

Explicit elevation coordinate included with horizontal coordinates

Entity Type Label

orthodebs_dates

Attribute Label

IMAGEDATE

Beginning Date of Attribute Values

Attribute Label

OBJECTID

Attribute Definition

Internal feature number.

Attribute Definition Source

ESRI

Unrepresentable Domain

Sequential unique whole numbers that are automatically generated.

Beginning Date of Attribute Values

Attribute Label

SHAPE.AREA

Beginning Date of Attribute Values

Attribute Label

SHAPE.LEN

Beginning Date of Attribute Values

Attribute Label

Shape

Attribute Definition

Feature geometry.

Attribute Definition Source

ESRI

Unrepresentable Domain

Coordinates defining the features.

Beginning Date of Attribute Values

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)

Network Resource Name

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

[smhyperl]

-1

[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.

[smdistty]

Fees

None

Ordering Instructions

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

Standard Order Process

Metadata Reference Information

Metadata Date

20100108

Metadata Review Date

20100111

Metadata Future Review Date

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 Time Convention

local time

Metadata Access Constraints

none

Metadata Use Constraints

Users must assume responsibility in determining the usability of this data for their purposes.