Identification_Information: Citation: Citation_Information: Originator: KAPPA Mapping Inc Publication_Date: 2008 Title: Bar_harbor_08.lyr Description: 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: Time_Period_Information: Single_Date/Time: Calendar_Date: 20080419 Currentness_Reference: ground condition Status: Progress: Complete Maintenance_and_Update_Frequency: None planned Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -68.42 East_Bounding_Coordinate: -68.16 North_Bounding_Coordinate: 44.45 South_Bounding_Coordinate: 44.30 Keywords: Theme: Theme_Keyword_Thesaurus: ISO Keyword Thesaurus Theme_Keyword: imagery Theme_Keyword: BaseMap Theme_Keyword: Earth Theme_Keyword: Cover Place: Place_Keyword_Thesaurus: Maine GIS Thesaurus-Place Place_Keyword: Maine Place_Keyword: United States Stratum: Stratum_Keyword_Thesaurus: GCMD Parameter Keyword Stratum_Keyword: land surface Access_Constraints: None Use_Constraints: None Point_of_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Claire Kiedrowski, CP Contact_Organization: KAPPA Mapping Inc Contact_Address: Address_Type: mailing and physical address Address: 6 State Street Suite 301 City: Bangor State_or_Province: ME 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 Data_Quality_Information: Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: Consistent with national standards for 1' ground sample distance (GSD). Lineage: Process_Step: 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 positional accuracy. After the composite image was finalized, it was tiled with OrthoVista software. Typical tiles sizes for TIFF (with appropriate world file TFW) images were in the 150 MB range. Lastly, TIFF images were compressed (20:1) to MrSID image format using LizardTech's compression software. Both true color and CIR ortho tiles were delivered to the Town of Bar Harbor. The aerotriangulation results and the raw color-infrared images were also provided to Fred Dibello of Stantec for vernal pool mapping and analysis. For more information, contact: Claire Kiedrowski, CP KAPPA Mapping, Inc. 6 State Street, Suite 301 Bangor, ME 04401 Ph: 207-942-5200 E: info@kappamap.com Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Planar: Grid_Coordinate_System: Grid_Coordinate_System_Name: State Plane Coordinate System Geodetic_Model: Horizontal_Datum_Name: NAD83 Ellipsoid_Name: GRS80 Distribution_Information: Distributor: Contact_Information: Contact_Person_Primary: Contact_Person: Steve Weed Contact_Organization: Town of Bar Harbor Contact_Position: Assessor Contact_Electronic_Mail_Address: assessor@barharbormaine.gov Resource_Description: Map Files Metadata_Reference_Information: Metadata_Date: 20090521 Metadata_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: MEGIS Contact_Person: Michael Smith Contact_Address: Address_Type: mailing and physical address Address: SHS 145 Address: 26 Edison Drive City: Augusta State_or_Province: ME Postal_Code: 04333-0145 Contact_Voice_Telephone: use email Contact_Electronic_Mail_Address: michael.smith@maine.gov Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata Metadata_Standard_Version: FGDC-STD-001-1998 Metadata_Time_Convention: local time Metadata_Extensions: Online_Linkage: http://www.esri.com/metadata/esriprof80.html Profile_Name: ESRI Metadata Profile