Bar Harbor Maine 2008

Identification Information

Citation Information

Originator	KAPPA Mapping Inc
Publication Date	2008
Title	Bar Harbor Maine 2008
Publication Place	Augusta ME
Publisher	Maine Office of Geographic Information Systems (MEGIS)
[smcilnkh]	false

Abstract

This OGC-compliant web mapping service (WMS) provides 2008 aerial orthophotos at a resolution of 1 foot for Bar Harbor, Maine and some adjacent areas. The imagery were captured April 19, 2008 by Richard Crouse & Associates of Frederick MD, and further processed by KAPPA Mapping of Bangor ME to create orthophotos

Purpose

General mapping, planning, and other municipal uses.

Time Period of Content

Calendar Date	20080419
Time of Day	Unknown
Currentness Reference	ground condition

Status

Progress	Complete
Maintenance and Update Frequency	None planned

Bounding Coordinates

West Bounding Coordinate	-68.42
East Bounding Coordinate	-68.16
North Bounding Coordinate	44.45
South Bounding Coordinate	44.3

Keywords

Theme	imageryBaseMapsEarthCover (ISO Keyword Thesaurus)
Place	Maine, United States (Maine GIS Thesaurus-Place)
Stratum	land surface (GCMD Parameter Keyword)

Access Constraints

None

Use Constraints

None

Contact Person

Claire Kiedrowski, CP

Contact Organization

KAPPA Mapping Inc

Address Type

mailing and physical address

Address

6 State Street Suite 301

City

Bangor

State or Province

Postal Code

04401

Contact Voice Telephone

207-942-5200

Contact Electronic Mail Address

info@kappamap.com

Native Data Set Environment

Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 2; ESRI ArcCatalog 9.3.1.1850

[smbrowse]

false

Horizontal Positional Accuracy Report

Consistent with national standards for 1' ground sample distance (GSD).

Process Description

Imagery for the Town of Bar Harbor was acquired on April 19, 2008 using a Z/I Digital Mapping Camera (DMC). This metric digital camera is capable of capturing true color, color infrared (CIR), and panchromatic (B&W) imagery at the same time. Positioning of the image centers were also captured using Airborne GPS (AGPS). Imagery was captured for an output suitable for a 1' ground sample distance (GSD). Richard Crouse & Associates of Frederick Maryland were selected to provide this service.The coordinate system is Maine State Plane Coordinate System, East Zone, and the horizontal datum is NAD83. Units are in US Survey Feet. The vertical datum is NAVD 88.Previous control points (from the 2004 aerial mapping project) were refreshed with new paint so that they would be visible for the 2008 imagery. The ground control was tied to the AGPS data. Pass, tie, and ground control points were measured using SoftPlotter 4.1. Albany software was used to aerotriangulate the data. Maximum residuals were less than 0.5 feet for X, Y, and Z.Digital Terrain Models (DTM) are a necessary component to create ortho-rectified imagery. In this case, the existing 5' contour interval DTM was used, which was photogrammetrically captured from the 2004 imagery.Digital orthophotographs (1.0' ground sample distance) were created from the aerial images, the camera calibration report, the aerotriangulation data, and the existing 2004 DTM. A cubic convolution algorithm was used to orthorectify each image (using SoftPlotter v4.1 software). Mosaicking was performed with INPHO OrthoVista 4.2 software. Mosaicking occurred along sharp linear features when possible and linear feathering was used to the blend the images.Previous stereo-compiled planimetric features were compared to the same orthophoto features to ensure proper alignment. Image color was enhanced slightly with Adobe PhotoShop' s image adjustment tools. This step improves visual appeal without affecting po

Cloud Cover

Grid Coordinate System Name

ARC Coordinate System

Planar Coordinate Encoding Method

Horizontal Datum Name

NAD83

Ellipsoid Name

GRS80

Semi-major Axis

Denominator of Flattening Ratio

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)

[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

Metadata Reference Information

Metadata Date

20090521

Metadata Review Date

Metadata Future Review Date

Metadata Contact

Contact Organization	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	ME
Postal Code	04333
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

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

none