medoqindex
Identification_Information
Data_Quality_Information
Spatial_Data_Organization_Information
Spatial_Reference_Information
Entity_and_Attribute_Information
Distribution_Information
Metadata_Reference_Information
Identification Information
Section Index
Citation:
Citation Information:
Originator: Maine Office of Geographic Information Systems (MEGIS)
Publication Date: 20041001
Publication Time: Unknown
Title: medoqindex
Geospatial Data Presentation Form: vector digital data
Series Information:
Series Name: Maine GIS
Issue Identification: SDE server; Internet Data Catalog
Publication Information:
Publication Place: Augusta ME
Publisher: Maine Office of Geographic Information Systems (MEGIS)
Other Citation Details: 1:24000
Online Linkage: http://megis.maine.gov/catalog/
Description:
Abstract:
MEDOQINDEX is a REGIONS dataset, a spatial index, by USGS 1:24000 scale tile, of photo names and dates for MEDOQ, Maine GIS 30 meter black and white orthophotography. MEDOQINDEX also serves as an index for the MEGIS.SDE image mosaic DOQQ. MEDOQINDEX contains the items QUADNAME, TILE_NAME, PHOTO and PHOTO_DATE. These are coded with the USGS quadrangle names and quadrant suffix, Maine GIS tile_name, image numbers and flight dates of the aerial photography used in the creation of the digital orthorectified photo quarter quadrangles.
Purpose: MEDOQINDEX provides a spatial index, by USGS 1:24000 scale tile, of photo names and dates for Maine GIS digital orthophotoquads MEDOQ and the Maine GIS image mosaic DOQQ.
Supplemental Information:
MEDOQINDEX image numbers in PHOTO follow the USGS index convention for 7.5 minute map series of 1 degree blocks of latitude and longitude, followed by an alpha-numeric code representing the 7.5 minute quadrangle area, with the origin of each block and code in the southeast corner. These are further subdivided by quadrant numbers for the quarter quadrangle DOQQs, with the numbers 1 through 4 beginning with the northwest quadrant NW, then clockwise northeast NE, southeast SE, southwest SW.
Time Period of Content:
Time Period Information:
Range of Dates/Times:
Beginning Date: 10/1/2004
Ending Date:
Currentness Reference: publication date
Status:
Progress: Complete
Maintenance and Update Frequency: none planned
Spatial Domain:
Bounding Coordinates:
West Bounding Coordinate: -71.08661
East Bounding Coordinate: -66.77189
North Bounding Coordinate: 47.35775
South Bounding Coordinate: 42.90801
Keywords:
Theme:
Theme Keyword Thesaurus: ISO Keyword Thesaurus
Theme Keyword: imageryBaseMapsEarthCover
Theme Keyword: location
Theme:
Theme Keyword Thesaurus: Maine GIS Thesaurus-Theme
Theme Keyword: digital orthophotoquad
Theme Keyword: index
Theme Keyword: doq
Place:
Place Keyword Thesaurus: Maine GIS Thesaurus-Place
Place Keyword: Maine
Place Keyword: Gulf of Maine
Place Keyword: United States
Stratum:
Stratum Keyword Thesaurus: GCMD Parameter Keyword
Stratum Keyword: radiance or imagery
Access Constraints:
Secondary distribution by permission only. Please see Maine Office of Geographic Information Systems (MEGIS) License Agreement at http://megis.maine.gov/ . Any secondary distribution must have this documentation appended.
Use Constraints:
Users must assume responsibility in determining the usability of this data for their purposes. Digital maps retain the accuracy of their source materials. The best use of data mapped at scales of 1:500,000 and 1:250,000 is in statewide planning and studies; at 1:100,000 in regional planning and studies; at 1:62,500 and 1:24,000 in detailed studies and local planning; and at 1:12,000 and 1:5,000 or larger scales in parcel level studies and detailed local planning. In the use of Maine GIS data, please check sources, scale, accuracy, currentness and other available information. Please confirm that you are using the correct copy of both data and metadata from the Maine GIS Data Catalog. The Maine Office of Geographic Information Systems (MEGIS) provides notice of updates and corrections directly to the Maine GIS Technical Group and Maine GIS Users, through the MEGISTECH and MEGISUSER list servers. To subscribe please contact MeGIS through the Maine Office of Information Technology (OIT) Customer Support Center (CSC) at (207) 624-7700. To request data correction in, or provide updates to Maine GIS data, please use the contact information contained in the metadata. Updates, corrections, and feedback, incorporated in the Maine GIS database are made in accordance with "Data Standards for Maine Geographic Information Systems", 2002, and coordinated by MEGIS in consultation with the Maine GIS Executive Council.
Point of Contact:
Contact Information:
Contact Organization Primary:
Contact Organization: (MEGIS) Maine Office of Geographic Information Systems
Contact Position: GIS Coordinator
Contact Address:
Address Type: mailing address
Address: State House Station 145
City: Augusta
State or Province: ME
Postal Code: 04333-0145
Country: USA
Contact Voice Telephone: (207) 624-7700
Contact Facsimile Telephone: (207) 287-3842
Hours of Service: Monday through Friday 0800 - 1700 EST
Data Set Credit: Credit should always be given to the data source and/or originator when the data is transferred or printed.
Native Data Set Environment:
Maine Office of Information Technology (OIT) Oracle 9i, Maine Office of Geographic Information Systems (MEGIS), Maine GIS SDE, SDEUSER, SDE.DEFAULT, Maine GIS Internet Data Catalog http://megis.maine.gov/catalog/
Cross Reference:
Citation Information:
Originator: U.S. Geological Survey (USGS), Maine Office of Geographic Information Systems (MEGIS) (comp., ed.)
Publication Date: 20010131
Publication Time: Unknown
Title: medoq
Geospatial Data Presentation Form: remote sensing image
Series Information:
Series Name: Maine GIS
Issue Identification: SDE server; Internet Data Catalog
Publication Information:
Publication Place: Augusta ME
Publisher: Maine Office of Geographic Information Systems
Other Citation Details:
1:12000 For additional information contact MEGIS at 1-207-287-6144. MEDOQ flight dates are available in comma delimited text, and .dbf format, on the MEGIS Data Catalog at http://megis.maine.gov/catalog/ "Tables" link medoqmeta.zip and in the REGIONS dataset MEDOQINDEX, a spatial index of MEDOQ image numbers by 1:24000 scale tile.
Online Linkage: http://megis.maine.gov/catalog/
Cross Reference:
Citation Information:
Originator: U.S. Geological Survey (USGS) EROS Data Center (EDC)
Publication Date: 19970514
Title: doqq
Series Information:
Series Name: USGS Aerial Photography
Issue Identification: Digital Orthophoto Quadrangles
Publication Information:
Publication Place: Menlo Park, CA USA
Publisher:
U.S. Geological Survey
U.S. Geological Survey
Other Citation Details:
1:12000 A digital orthophoto is a computer-generated image of an aerial photograph in which the image displacement caused by terrain relief and camera tilt has been removed.
A digital orthophoto can be incorporated into any geographic information system (GIS) that can manipulate raster images. It can function as a cartographic base for displaying, generating, and modifying associated digital planimetric data. Other applications include vegetation and timber management, routing and habitat analysis, environmental impact assessments, emergency evacuation planning, flood analysis, soil erosion assessment, facility management, and groundwater and watershed analysis. The accuracy and extraordinary detail provided by the digital orthophoto allow users to evaluate their data for accuracy and completeness, make real-time modifications to their data, and even generate new files.
DOQQ is a mosaic of digital orthophoto quarter quadrangles stored in a Maine Office of Geographic Information Systems (MEGIS) Oracle/ArcSDE environment. The digital orthophoto quarter quadrangles that form the mosaic are available for download from the Maine GIS Internet Data Catalog in compressed MrSID format in 7.5 minute quadrangle map extent. Compression with LizardTech's MrSID software creates two files a .sid image and an .sdw file georeferencing file, approximate size of the download is 12MB, one sixteenth of the uncompressed DOQQ image.
Online Linkage: http://megisims.state.me.us/website/orthomap/viewer.htm
Data Quality Information
Section Index
Attribute Accuracy:
Attribute Accuracy Report:
Attribute and linework accuracy were verified using Maine Office of Geographic Information resources and knowledge. Attribute coding in the coverage was verified at MEGIS by visual check of source materials.
Logical Consistency Report:
The photo numbers and flight dates represented in MEDOQINDEX contain information on 2417 black and white digital orthorectified MEDOQ image files. The images delivered by USGS in quarter quadrangle map extent were appended to 1:24,000 scale quadrangle size for distribution in the Maine GIS Internet Data Catalog and mosaicked in the MEGIS.SDE layer DOQQ. MEDOQINDEX is a REGIONS dataset that displays information on 4 orthophoto quarter quadrangles by 1:24,000 scale tile.
Completeness Report: The dataset is complete.
Positional Accuracy:
Horizontal Positional Accuracy:
Horizontal Positional Accuracy Report: Approximate accuracy of MEDOQINDEX is better than 12 meters, assuming source data meets National map Accuracy Standards.
Quantitative Horizontal Positional Accuracy Assessment:
Horizontal Positional Accuracy Value: 12
Horizontal Positional Accuracy Explanation: Data was derived from digital data that meets National Map Accuracy Standards for 1:24,000 scale.
Lineage:
Source Information:
Source Citation:
Citation Information:
Originator: Maine Office of Geographic Information Systems (MEGIS)
Publication Date: 20040329
Publication Time: Unknown
Title: index24
Geospatial Data Presentation Form: vector digital data
Series Information:
Series Name: Maine GIS
Issue Identification: SDE server; Internet Data Catalog
Publication Information:
Publication Place: Augusta ME
Publisher: Maine Office of Geographic Information Systems (MEGIS)
Other Citation Details: 1:24000
Online Linkage: http://megis.maine.gov/catalog/
Source Scale Denominator: 24000
Type of Source Media: online
Source Time Period of Content:
Time Period Information:
Single Date/Time:
Calendar Date: 3/23/2004
Time of Day: Unknown
Source Currentness Reference: publication date
Source Citation Abbreviation: index24
Source Contribution: The coordinate information from the INDEX24 was attributed with quadrant photo numbers to create MEDOQINDEX.
Process Step:
Process Description: MEDOQINDEX was created from INDEX24 with tabular data delivered by USGS on the image number, flight date and TILE_NAME or QUADNAME relationship.
Source Used Citation Abbreviation: index24
Process Date: 20041001
Process Contact:
Contact Information:
Contact Organization Primary:
Contact Organization: (MEGIS) Maine Office of Geographic Information Systems
Contact Position: GIS Coordinator
Contact Address:
Address Type: mailing address
Address: State House Station 145
City: Augusta
State or Province: ME
Postal Code: 04333-0145
Country: USA
Contact Voice Telephone: (207) 624-7700
Contact Facsimile Telephone: (207) 287-3842
Hours of Service: Monday through Friday 0800 - 1700 EST
Cloud Cover: 0
Spatial Data Organization Information
Section Index
Direct Spatial Reference Method: Vector
Point and Vector Object Information:
SDTS Terms Description:
SDTS Point and Vector Object Type: Area point
Point and Vector Object Count: 2417
Spatial Reference Information
Section Index
Horizontal Coordinate System Definition:
Planar:
Grid Coordinate System:
Grid Coordinate System Name: Universal Transverse Mercator 1983
Universal Transverse Mercator:
UTM Zone Number: 19
Transverse Mercator:
Scale Factor at Central Meridian: 0.9996
Longitude of Central Meridian: -69
Latitude of Projection Origin: 0
False Easting: 500000
False Northing: 0
Planar Coordinate Information:
Planar Coordinate Encoding Method: Coordinate Pair
Coordinate Representation:
Abscissa Resolution: 1
Ordinate Resolution: 1
Planar Distance Units: meters
Geodetic Model:
Horizontal Datum Name: North American Datum of 1983
Ellipsoid Name: Geodetic Reference System 80
Semi-major Axis: 6378137
Denominator of Flattening Ratio: 298.257
Entity and Attribute Information
Section Index
Detailed Description:
Entity Type:
Entity Type Label: MEDOQINDEX
Entity Type Definition: regions feature class
Entity Type Definition Source: Environmental Systems Research Institute, Inc. (ESRI)
Attribute:
Attribute Label: PHOTO
Attribute Definition: number of the corresponding MEDOQ or DOQQ image
Attribute:
Attribute Label: PHOTO_DATE
Attribute Definition: date of aerial photography used to create each orthophoto quarter quad MEDOQ or DOQQ image.
Beginning Date of Attribute Values: 19910620
Ending Date of Attribute Values: 20030503
Attribute:
Attribute Label: QUADNAME
Attribute Definition: USGS 7.5 minute map series quadrangle name with a quadrant suffix
Attribute Definition Source: U.S. Geological Survey
Attribute:
Attribute Label: TILE_NAME
Attribute Definition:
carries the corresponding Maine GIS INDEX24 tile name, lower case and hyphenated, 4 MEDOQ or DOQQ images per tile (Tile names are identical in most cases to the USGS official name for each 7.5 minute series, 1:24000 scale quadrangle.)
Attribute Definition Source: Maine Office of Geographic Information Systems (MEGIS)
Overview Description:
Entity and Attribute Overview:
MEDOQINDEX is a REGIONS dataset, a spatial index, by USGS 1:24000 scale tile, of photo names and dates for MEDOQ, Maine GIS 30 meter black and white orthophotography. MEDOQINDEX contains the items QUADNAME, TILE_NAME, PHOTO and PHOTO_DATE. These are coded with the USGS quadrangle names and quadrant suffix, Maine GIS tile_name, image numbers and flight dates of the aerial photography.
Entity and Attribute Detail Citation:
The ArcInfo coverage, ArcView shapefile, ArcGIS geodatabase formats, commonly used for Maine GIS data, carry default identifiers and attributes that are software generated and/or important for internal recordkeeping. These are listed here to avoid repetition for every layer, and may not be repeated in the attribute descriptions and definitions of each layer. Common software generated identifiers and attributes in Maine GIS data include: <title>#, <title>-ID, <title>_, <title>_ID, FID (feature identifier), Shape (feature geometry), OBJECTID. Other default attributes, that may be present, refer to the topological relationships between features, for example RIGHTPOLY or R_POLY, LEFTPOLY or L_POLY, FROMNODE or F_NODE, TONODE or T_NODE. In addition, most GIS formats will carry fields for PERIMETER, AREA and/or LENGTH according to feature geometry. These fields are typically available by default, with the units based on coordinate system or projection units of GIS data. (Units are meters for Maine GIS data.) Most GIS software packages also provide a means to calculate these values. It is important to test any columns containing PERIMETER, AREA or LENGTH values before using them for analysis purposes. These important values can be carried from format to format and become out-dated. Verify that the values are correct. Also, in your GIS software, please view the properties of data layers for the map units used to calculate these fields, and for the units set for display purposes.
Distribution Information
Section Index
Distributor:
Contact Information:
Contact Organization Primary:
Contact Organization: (MEGIS) Maine Office of Geographic Information Systems
Contact Position: GIS Coordinator
Contact Address:
Address Type: mailing address
Address: State House Station 145
City: Augusta
State or Province: ME
Postal Code: 04333-0145
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. Although these data have been processed successfully on a computer system at the Maine Office of Geographic Information Systems, no warranty expressed or implied is made by MEGIS regarding the utility of the data on any other system, nor shall the act of distribution constitute any such warranty. Neither the Maine Office of Geographic Information Systems, nor any of its contributors, is liable for misuse of the data, for damage, for transmission of viruses, or for computer contamination through the distribution of these data sets.
Standard Order Process:
Digital Form:
Digital Transfer Information:
Format Name: ESRI Shapefile
Format Version Number: ARC Version 9.x
Format Specification: ArcView Shapefile Format
Format Information Content:
MEGIS has made all vector layers, in the Maine GIS Internet Data Catalog, available in ESRI's ArcView shapefile format. A shapefile is a simple non-topological format that stores the geometry and attribute information for a set of geographic features as a set of vector (point, line, polygon) coordinates. Shapefiles draw quickly and directly in ArcView, ArcGIS, ArcExplorer. Shapefiles are a compatible data type for many other types of GIS software. Three files are fundamental to each shapefile: .shp stores the feature geometry (shape and location information); .shx stores the index of the feature geometry; .dbf a dBASE (TM) file stores the attribute information for the features. Other index files may be created to help speed analysis and query: these file formats are .sbn .sbx .ain .aix .fbn and .fbx. In addition you may find projection .prj, and metadata .xml, files associated with shapefiles.
File Decompression Technique:
Data available from this website is in .zip compressed format. WinZip is a Windows based, PKZip-compatible compression utility. You will need a program like this to extract the data. A link to a trial copy WinZip software is available at http://megis.maine.gov/links/.
Digital Transfer Option:
Online Option:
Computer Contact Information:
Access Instructions:
These data are available to Internet browsers for download from the Maine GIS Internet Data Catalog. Data available from this website is in .zip compressed format. WinZip is a Windows based, PKZip-compatible compression utility. You will need a program like this to extract the data. A link to a trial copy WinZip software is available at http://megis.maine.gov/links/. If you are not already a GIS user, free software for viewing these files is available from Environmental Systems Research Institute, Inc. (ESRI). See http://megis.maine.gov/links/ for a link to ArcExplorer 9.x .
Digital Transfer Option:
Online Option:
Access Instructions: Where file size and Internet access permit, data requests can be made available via File Transfer Protocol (FTP).
Fees: Data may be downloaded from Maine GIS Internet Data Catalog at no charge.
Turnaround: Data is available for immediate download from the Maine GIS Internet Data Catalog.
Standard Order Process:
Distribution Information
Section Index
Distributor:
Contact Information:
Contact Organization Primary:
Contact Organization: (MEGIS) Maine Office of Geographic Information Systems
Contact Position: GIS Coordinator
Contact Address:
Address Type: mailing address
Address: State House Station 145
City: Augusta
State or Province: ME
Postal Code: 04333-0145
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.
Standard Order Process:
Digital Form:
Digital Transfer Information:
Format Name: ARCSDE
Format Version Number: ArcSDE 9.x
Format Information Content: Oracle 9i
Digital Transfer Option:
Online Option:
Access Instructions: Please contact the Maine Office of GIS (MEGIS) for access instructions.
Fees: Access is available through Maine's wide area network; WAN users may contact the Maine Office of Information Technology, Maine Office of Geographic Information Systems (MEGIS) for a login.
Distribution Information
Section Index
Distributor:
Contact Information:
Contact Organization Primary:
Contact Organization: (MEGIS) Maine Office of Geographic Information Systems
Contact Position: GIS Coordinator
Contact Address:
Address Type: mailing address
Address: State House Station 145
City: Augusta
State or Province: ME
Postal Code: 04333-0145
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.
Standard Order Process:
Digital Form:
Digital Transfer Information:
Format Name: WMS
Format Version Number: 1.1
Format Specification: OpenGIS (OGC) Web Map Service (WMS )
Format Information Content:
MEGIS has created a web based application for Maine GIS data that adheres to the OpenGIS Consortium (OGC) Web Mapping Specification (WMS 1.1.1) which allows map servers to create and send standard map images over the Web.
Digital Transfer Option:
Online Option:
Computer Contact Information:
Access Instructions: This metadata document contains embedded URLs that can be used to make OGC WMS 1.1.1 compliant map requests of the framework layers in the Maine GeoLibrary.
Fees: None
Ordering Instructions:
Currently OGC WMS 1.1.1 access is available for CONTOURS, DOQQ, E911RDS, HYD24L, HYD24P, INDEX_HF, MECNSLND, MEDOQINDEX, MEDOTPUB, MERAIL24, METWP24L, METWP24P, ORTHO_HF, ORTHO_FF, ORTHO_1F, ORTHO_2F, INDEX_FF, INDEX_1F, INDEX_2F, OTRANS. These images are available to the Web and client software for overlay and display of multiple maps using first of the URLS listed above. Access the OGC: WMS Framework "WMT_MS Get Capabilities" in XML using Internet browser or other XML friendly viewer.
Metadata Reference Information
Section Index
Metadata Date: 10/1/2004
Metadata Review Date: 9/25/2007
Metadata Future Review Date:
Metadata Contact:
Contact Information:
Contact Organization Primary:
Contact Organization: Maine Office of Geographic Information Systems
Contact Position: GIS Coordinator
Contact Address:
Address Type: mailing address
Address: State House Station 145
City: Augusta
State or Province: ME
Postal Code: 04333-0145
Country: USA
Contact Voice Telephone: 207 624-7700
Contact Facsimile Telephone: 207 287-4563
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
SMMS Metadata report generated Wednesday, 26/September/2007