ortho_2f

Citation:

Citation Information:

Originator: Maine Library of Geographic Information (MLGI), U.S. Geological Survey (USGS), Maine Office of Geographic Information Systems (MEGIS)(comp.)
Publication Date: 20080901
Publication Time: Unknown
Title: ortho_2f
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 (MEGIS)

Other Citation Details: 1:4800
Online Linkage: http://megis.maine.gov/catalog/

Description:

Abstract:
ORTHO_2F is an image mosaic of true color (24-bit), 2 foot ground sample distance (GSD) , high resolution digital orthophotographs produced from aerial photos collected over southwestern, central and northeastern Maine in the Spring of 2003, 2004 and 2005. Each pixel represents a planimetric square 2 feet on a side on the ground. Aerial photography for ORTHO_2F was flown at 12,000 feet above mean ground level. Source elevation data were 10 meter Digital Elevation Models produced for this project by USGS from 1:24,000 scale elevation and hydrography data supplied by MEGIS. The digital orthorectified images (image chips) are referenced to North American Datum 1983, UTM Zone 19, expressed in units of meters. Cartographic Services for orthorectification and the creation of digital elevation models were provided by USGS Mid-Continent Mapping Center (USGSMCMC). ORTHO_2F provides a digital photographic map suitable for applications requiring a 1:4800 map scale, a National Map Accuracy Standard (NMAS) of +/- 13.33 feet. The multi-agreement program was developed and funded in coordination with the Maine GeoLibrary Board. The U.S. Department of Agriculture, Natural Resource Conservation Service (NRCS) contributed toward this project via a separate funding agreement with USGS. The completed orthorectified GeoTIFF files represent quarter-quadrangle (QQ) sized tiles with a 300m over-edge. All overedges for ORTHO_2f overlap adjacent ORTHO_1F orthophotography by this distance. ORTHO_2F tiles provide complete coverage of the TIER B boundaries as defined by the project, http://www.maine.gov/geolib/ortho%20committee/highresolorthoproject.htm. Tiles split by tier and project boundaries were completed to their full tile extent. Towns designated TIER B will have complete coverage by 2 foot GSD imagery.
Purpose:
To serve Maine GIS users, state and local governments as well as the private sector, supplying 2 foot ground sample distance, map-accurate, continuous digital photographic coverage for Maine communities as identified in the high resolution orthophotography project.
The seamless presentation is available to Maine GIS users through direct connection to the MEGIS Oracle/ArcSDE database, to anyone with Internet Browser access for viewing through an Internet ArcIMS application at http://megisims.state.me.us/website/orthomap/viewer.htm and for free download from the Maine GIS Internet Data Catalog.

Supplemental Information:
Digital ortho images in ORTHO_2F were delivered by QQ in uncompressed, untiled, Arc/Info compatible, GeoTIFF format, accompanied by world file *.tfw header files. Other deliverables include FGDC compliant metadata and an orthophoto tile index, INDEX_2F. The naming convention of the delivered files was derived from the northwest corner of each ortho tile using the first four digits of the northing and easting coordinates referenced to the UTM coordinate system, followed by the State designator ME, and the UTM Zone number 19.
Both ArcExplorer 4.0.1 (free for download from http://www.esri.com/software/arcexplorer/index.html) and the ArcGIS 9.x module ArcMap accept a URL for "adding" data from an Internet location. Open ArcCatalog, select "GIS Servers", select "Add ArcIMS Server", at URL of server type http://megisims.state.me.us and select "Get List", select "orthomap" or "basemap", etc. Use the connection in created in ArcMap to access high resolution orthophotography and data from other MEGIS Internet Map Services without data storage or data management costs.

Time Period of Content:

Time Period Information:

Range of Dates/Times:

Beginning Date: 3/1/2003
Beginning Time: Unknown
Ending Date: 6/20/2005
Ending Time: Unknown

Currentness Reference: ground condition

Status:

Progress: In work
Maintenance and Update Frequency: Unknown

Spatial Domain:

Bounding Coordinates:

West Bounding Coordinate: -71.3
East Bounding Coordinate: -66.8
North Bounding Coordinate: 47.6
South Bounding Coordinate: 42.9

Keywords:

Theme:

Theme Keyword Thesaurus: ISO Keyword Thesaurus
Theme Keyword: imageryBaseMapsEarthCover

Theme:

Theme Keyword Thesaurus: Maine GIS Thesaurus-Theme
Theme Keyword: aerial photograph
Theme Keyword: ortho-rectified digital image
Theme Keyword: color imagery 24-bit
Theme Keyword: ground sample distance 2 foot

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
Stratum Keyword: land surface

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.
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.
Security Information:

Security Handling Description: Procurement

Native Data Set Environment:
Ortho-rectified digital images were delivered by U.S. Geological Survey Mid-Continent Mapping Center in GeoTIFF raster file format (with .tfw World file). 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/, Maine GIS ArcIMS http://megisims.state.me.us/website/orthomap/viewer.htm
Cross Reference:

Citation Information:

Originator: Maine Library of Geographic Information (MLGI), Maine Office of Geographic Information Systems (comp.)
Publication Date: 20050902
Publication Time: Unknown
Title: index_2f
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: 1:4800
Online Linkage: http://megis.maine.gov/catalog/

Attribute Accuracy:

Attribute Accuracy Report:
Orthophotos were tonally balanced to produce a uniform contrast and tone across the image tiles of the entire project.

Logical Consistency Report: Area of each orthophoto in ORTHO_2F represents an entire QQ where applicable.
Completeness Report: Complete digital orthorectified image files, covering the aerial photo area for Spring 2003.
Positional Accuracy:

Horizontal Positional Accuracy:

Horizontal Positional Accuracy Report:
Technical standards for ORTHO_2F were consistent with standards established by USGS Cartographic Services Contract CSC2 for high resolution orthophoto production. The 2 foot GSD orthophotographs meet the accuracy standard that 90% of all well-defined features will fall within 13.3 feet of true position on the ground at a mapping scale of 1:4800.
Quantitative Horizontal Positional Accuracy Assessment:

Horizontal Positional Accuracy Value: 4
Horizontal Positional Accuracy Explanation: Relative join (misalignment) of transportation features between adjacent image chips/tiles does not exceed 13.3 feet for the 2 foot GSD area.

Lineage:

Source Information:

Source Citation:

Citation Information:

Originator: U.S. Geological Survey (USGS), Maine Office of Geographic Information Systems (MEGIS) (comp., ed.)
Publication Date: 20000430
Publication Time: Unknown
Title: contours
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 Two URLs below can be used to MEGIS Framework Web Map Service This is an OGC compliant MapService served By MEGIS. The engine used to serve this MapService is ArcIMS

Online Linkage: http://megis.maine.gov/catalog/

Source Scale Denominator: 24000
Type of Source Media: online
Source Time Period of Content:

Time Period Information:

Range of Dates/Times:

Beginning Date: 1/1/1948
Beginning Time: Unknown
Ending Date: 12/31/1993
Ending Time: Unknown

Source Currentness Reference: source dates

Source Citation Abbreviation: contours

Source Information:

Source Citation:

Citation Information:

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

Source Scale Denominator: 12000
Type of Source Media: filmstrip
Source Time Period of Content:

Time Period Information:

Range of Dates/Times:

Beginning Date: 5/20/2003
Beginning Time: Unknown
Ending Date: 6/20/2005
Ending Time: Unknown

Source Currentness Reference: ground condition

Source Citation Abbreviation: jwsclr6000

Source Information:

Source Citation:

Citation Information:

Originator: U.S. Geological Survey (USGS), Maine Office of Geographic Information Systems (MEGIS) (comp., ed.)
Publication Date: 2004
Publication Time: Unknown
Title: hyd24
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 For distribution through the Maine GIS Internet Data Catalog this dataset is distributed by HUC8 watershed map extent. A list of all twenty-one (21) HUC8 names and numbers is available in a table "HUCLUT", at the Data Catalog "Tables" link. Corresponding 12 digit HUC names and numbers are also included in the table. Three methods of selection are available from the Internet Data Catalog to suit your needs:

1) To obtain a downloadable list of all the HUC8 watersheds use Select by County on HYD24, and select all counties. The result will be by county and include all HUC8 watershed names and numbers with some, but minimum, overlap to choose from for download.


2) If you want to limit your download to a specific hydrography feature use Select by Watershed, which will provide a list of HUC12 names of local features to select from. The result will provide only the corresponding 8 digit HUCs to download.


3) For advanced search and query statewide, download the data layer WBDME6_A. The data layer contains boundaries, name and number attribution for 6, 8, 10, 12 digit HUCs and can be used as an index for each of these levels of watersheds.

Source Scale Denominator: 24000
Type of Source Media: online
Source Time Period of Content:

Time Period Information:

Single Date/Time:

Calendar Date: 2004
Time of Day: Unknown

Source Currentness Reference: source dates

Source Citation Abbreviation: hyd24

Process Step:

Process Description:
Aerial photography for ORTHO_2F was flown at 12,000 feet above mean ground level. Camera focal length was six (6") inches. Natural color aerial photography flown north-south, controlled by Airborne Global Positioning System (GPS) and Inertial Measurement Unit (IMU) was acquired and processed to a positive image over an area of approximately 16,794 square miles. The photography was acquired only under conditions free from clouds and cloud shadows, smoke, haze, light streaks, snow, flooding, excessive soil moisture, during minimal shadow conditions, and with sun angle greater than 30%. The film specified was Kodak 2427 (or equivalent AGFA) POSITIVE original film, processed to a positive image. Adequate stereo coverage over the project area was required with a minimum overlap of 60% forward and 30% side. The USGS National Aerial Photography Program office, part of USGS Eastern Region Geography conducted quality assessment of the photos collected.
Process Date: 20050620
Process Contact:

Contact Information:

Contact Organization Primary:

Contact Organization: James W. Sewall Company

Contact Address:

Address Type: mailing and physical address
Address: 147 Center Street
City: Old Town
State or Province: ME
Postal Code: 04468
Country: USA

Contact Voice Telephone: (207) 827-4456
Contact Facsimile Telephone: (207) 827-3641

Process Step:

Process Description: Orthorectification from color positive aerial film, including geometric correction and mosaicking processes, performed by trained personnel, operating a computerized processing chain.
Process Date: 20060224
Process Contact:

Contact Information:

Contact Organization Primary:

Contact Organization: (USGSMCMC) USGS Mid-Continent Mapping Center
Contact Person: Patrick Emmett

Contact Position: Contract Officer
Contact Address:

Address Type: mailing address
Address: 1400 Independence Road
City: Rolla
State or Province: MO
Postal Code: 44554
Country: USA

Contact Voice Telephone: 573 308-3860
Contact Facsimile Telephone: 573 308-3810
Hours of Service: 0800-1700

Cloud Cover: 0

Indirect Spatial Reference: Brownfield QQ Sample
Direct Spatial Reference Method: Raster
Raster Object Information:

Raster Object Type: Pixel

Horizontal Coordinate System Definition:

Planar:

Grid Coordinate System:

Grid Coordinate System Name: Universal Transverse Mercator 1927
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

Geodetic Model:

Horizontal Datum Name: North American Datum of 1927
Ellipsoid Name: Clarke 1866
Semi-major Axis: 6378206
Denominator of Flattening Ratio: 294.9786982

Vertical Coordinate System Definition:

Altitude System Definition:

Altitude Datum Name: National Geodetic Vertical Datum of 1929

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: MrSID
Format Version Number: 1.3.1 Geospatial Encoder
Format Specification: Portable Image Format
Format Information Content:
Multiple options exist for viewing images in MrSID format which consist of .sid and .sdw georeferencing files. For the GIS community, viewers exist for or are built into ArcView, ArcInfo Desktop 9.x, MapInfo, MapObjects, GeoMedia, IRAS-C, cadcorp Map Modeller, MicroStation, Photoshop, and other major imaging applications.
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:

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/ . Files compressed with MrSID software are usable in many GIS environments, by default or by extension. If you are not already a GIS user, a link to free software for viewing of these files, ArcExplorer from Environmental Systems Research Institute, Inc. (ESRI), is available at http://megis.maine.gov/links/ . Trial viewing software for MrSID files is also available from the software developer LizardTech at http://www.lizardtech.com/download/dl_download.php?detail=geo_geoexpressview&platform=win .
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.

Standard Order Process:

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.

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:

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 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