River_Classification

Metadata also available as

Metadata:


Identification_Information:
Citation:
Citation_Information:
Originator:
U.S. Geological Survey USGS), Maine Office of Geographic Information Systems (MEGIS) (ed.), Maine Dept. of Environmental Protection (ed.)
Publication_Date: 19970101
Publication_Time: Unknown
Title: River_Classification
Geospatial_Data_Presentation_Form: vector digital data
Series_Information:
Series_Name: MEGIS Library and Data Catalog
Issue_Identification: 24kbase
Publication_Information:
Publication_Place: Augusta ME
Publisher: Maine Office of Geographic Information Systems (MEGIS)
Other_Citation_Details:
24000 Arc/Info version 7.2.1, Solaris 2.5.1 patch 1 Pathname = /home11/lib83/24kbase/tiles/(quadname)/rivers, average coverage size = .02 MB
Online_Linkage:
Server=depsuna; Service=esri_sde81; User=gis; Version=SDE.DEFAULT
Description:
Abstract:
This layer file depicts the Rivers layer using standard LAWB water classification symbology prepared by Vicki Schmidt.

RIVERS depicts double line river features in Maine from USGS 1:24,000 scale quadrangles. Some New Hampshire and New Brunswick features are also included. Codes are included to select river island polygons. Note that tidal portions of rivers are located in the COAST coverage.

This layer received significant updates and corrections by DEP staff, including coding of river names and classifications per MRSA 38 4-A. Data is current to LD 1529, HP 1121, Second Regular Session of the 121st Legislature, effective 9/13/03. Island polygons have been removed during the SDE loading process.

Purpose:
RIVERS is a base map layer of double line river features at a 1:24000 scale. Users must assume responsibility in determining the useability of this data for their purpose. Data at this scale is suitable for detailed studies and local planning.
Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date:
REQUIRED: The year (and optionally month, or month and day) for which the data set corresponds to the ground.
Currentness_Reference: source dates
Status:
Progress: Complete
Maintenance_and_Update_Frequency: As needed
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -71.259067
East_Bounding_Coordinate: -67.036061
North_Bounding_Coordinate: 47.482098
South_Bounding_Coordinate: 43.017503
Keywords:
Theme:
Theme_Keyword_Thesaurus: Maine GIS Thesaurus-Theme
Theme_Keyword: hydrography
Theme_Keyword: rivers
Theme_Keyword: BASEMAP
Theme_Keyword: 24000
Theme_Keyword: NATURAL RESOURCES AND TOPOGRAPHY
Place:
Place_Keyword_Thesaurus: Maine GIS Thesaurus-Place
Place_Keyword: Maine
Place_Keyword: New Hampshire
Place_Keyword: New Brunswick
Stratum:
Stratum_Keyword_Thesaurus: Maine GIS Thesaurus-Stratum
Stratum_Keyword: hydrosphere
Access_Constraints: None
Use_Constraints: None
Point_of_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: Maine DEP GIS Unit
Contact_Person: GIS Manager
Contact_Address:
Address_Type: mailing address
Address: State House Station 145
City: Augusta
State_or_Province: ME
Postal_Code: 04333-145
Country: USA
Contact_Voice_Telephone: 207 287 6167
Contact_Facsimile_Telephone: 207 287 7896
Hours_of_Service: Monday through Friday 0800 - 1700 EST
Data_Set_Credit: MEGIS
Native_Data_Set_Environment:
Microsoft Windows 2000 Version 5.0 (Build 2195) Service Pack 2; ESRI ArcCatalog 8.2.0.700

Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
Attribute accuracy is tested by manual comparison of the source with hard copy printouts and/or symbolyzed display of digital files. Please report errors to Maine Office of GIS.
Logical_Consistency_Report:
Spatial topology meets Maine GIS Data Standards. Spatial topology meets Maine GIS Data Standards. LABELERRORS and NODEERRORS have been resolved. Spatial topology is clean and free of errors. The coverage has been BUILT with polygon topology.
Completeness_Report: Data set is complete.
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report:
Approximate horizontal accuracy is 12 meters, assuming source data meets National Map Accuracy Standards. The data retains the edgematching discrepancies existing in the source. Horizontal positional accuracy for the digital data is tested by visual comparison to the source with hard copy plots.
Vertical_Positional_Accuracy:
Vertical_Positional_Accuracy_Report: Not applicable.
Lineage:
Source_Information:
Source_Citation:
Citation_Information:
Originator: U.S. Geological Survey (USGS)
Publication_Date: multiple dates
Publication_Time: Unknown
Title: (24k) USGS 1:24000 scale quadrangles
Geospatial_Data_Presentation_Form: hardcopy map series
Series_Information:
Series_Name: National Mapping Program Standard Series Topographic Maps
Issue_Identification: USGS 7.5 Minute Map Series
Publication_Information:
Publication_Place: Reston, Virginia
Publisher: U.S. Geological Survey
Other_Citation_Details:
24000 Publication date is unique to each quadrangle in the map series. Standard 7.5x7.5 minute quadrangles cover geographic areas of 49 to 71 square miles. 1 inch at map scale represents 2000 feet.
Online_Linkage: <http://mapping.usgs.gov/mac/maplists/howtoselectmaps.html>
Source_Scale_Denominator: 24000
Type_of_Source_Media: mylar
Source_Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 19480101
Beginning_Time: unknown
Ending_Date: 19901231
Ending_Time: unknown
Source_Currentness_Reference: publication date
Source_Citation_Abbreviation: usgs24k
Source_Contribution:
RIVERS consists of double line fresh water hydrological features digitized from USGS 1:24,000 scale quads.
Source_Information:
Source_Citation:
Citation_Information:
Originator:
U.S. Geological Survey USGS), Maine Office of Geographic Information Systems (MEGIS) (ed.)
Publication_Date: 19970101
Publication_Time: Unknown
Title: rivers
Geospatial_Data_Presentation_Form: map
Series_Information:
Series_Name: MEGIS Library and Data Catalog
Issue_Identification: 24kbase
Publication_Information:
Publication_Place: Augusta ME
Publisher: Maine Office of Geographic Information Systems (MEGIS)
Other_Citation_Details:
24000 Arc/Info version 7.2.1, Solaris 2.5.1 patch 1 Pathname = /home11/lib83/24kbase/tiles/(quadname)/rivers, average coverage size = .02 MB
Online_Linkage: <http://apollo.ogis.state.me.us/>
Source_Scale_Denominator: 24000
Type_of_Source_Media: online
Source_Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 19480101
Beginning_Time: Unknown
Ending_Date: 19901231
Ending_Time: Unknown
Source_Currentness_Reference: source dates
Source_Citation_Abbreviation: megisrivers
Source_Contribution:
RIVERS consists of double line fresh water hydrological features digitized from USGS 1:24,000 scale quads and is a Maine Office of Geographic Information Systems (MEGIS) 1:24000 base layer.
Process_Step:
Process_Description:
Each MaineGIS 1:24000 base layer represents the automation of a thematic layer from a U.S.Geological Survey (USGS) 7.5 minute series 1:24000 scale quadrangle map. Since the early 1990s, Maine Department of Conservation (MEDOC) has led a multi-agency effort to fund the automation of data to serve a diverse suite of state agency applications in areas that include natural resource management, environmental protection, transportation, and human services. Initially nine base layers were identified for conversion to digital files: coast, contours, otrans, ponds, rivers, roads, streams, towns and wetlands. Automation and quality control, of over 700 U.S.G.S. quadrangles that cover the State of Maine, were coordinated by the Maine Office of Geographic Information Systems (MEGIS). Automation was verified using quality control parameters and procedures outlined in MaineGIS "Data Standards for Maine Geographic Information Systems", March 1990. For MaineGIS base layers, a number of contracted sources were used to scan and vectorize the data from mylar separates or the best available media. Digital files were delivered by contractors in Universal Transverse Mercator (UTM) projection, Zone 19 referenced to the North American Datum of 1927 (NAD27) and in ARC/INFO format, the software standard for Maine's statewide GIS. Quads were digitized at a Root Mean Square (RMS) error not to exceed 0.005 and at a fuzzy tolerance equivalent to 0.002 digitizer inches at the scale of the manuscript map. Map features were digitized within the equivalent of 0.01 in. of the original manuscript. Mylar proof plots of the digitized coverages, with USGS tick marks, neatline and legend, were generated at a pen width of 0.01, and at the original scale, and provided by contractors on delivery of each digitized quad. At MEGIS, proof plots were overlaid on original base maps to check registration, linework quality, and completeness. Features were verified by the following standard of accuracy: 90% of the planimetric features on the digital map must be within 0.01 in. of the centerline of that feature on the manuscript map when plotted at the original scale; 100% of all features must be within 0.02 in. Spatial topology was verified to be clean and free of errors by symbolized display of data and reports on screen: no overshoots; no slivers; no open polygons; no unlabelled polygons; no unresolved line segment intersections, no unresolved dangles; for all points, lines and polygons, a single unique user-id number. A coding accuracy of 100% was required for all attributes which were verified by manual comparison of the source with hard copy printouts and/or symbolized display of data on screen. All digitized quads are intended to match the USGS source, and include discrepancies found in the source, like edgematch, contour interval, unit of measure, and features mapped. Digitized map tiles were documented by contractors, at the time of automation, using a MaineGIS hardcopy Documentation Form for Digital Map Data and an Attribute Coding Description Form. Data from these hardcopy documents were recorded in INFO as a <layer>.doc file and reflected in the .FAT files of each map tile coverage. Documentation and description, as well as development status of each map tile, were also tracked, at MEGIS, in two Microsoft ACCESS databases CATALOG and QUADSTAT. These database formed the basis for an online Data Catalog, that in 1997 provided internet publication and delivery, of MaineGIS data, to state agencies and the public.
Source_Used_Citation_Abbreviation: usgs24k
Process_Date: 1997
Source_Produced_Citation_Abbreviation: megisrivers
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: (MEGIS) Maine Office of Geographic Information Systems
Contact_Position: Data Center
Contact_Address:
Address_Type: mailing address
Address: State House Station 145
City: Augusta
State_or_Province: ME
Postal_Code: 04333-145
Country: USA
Contact_Voice_Telephone: 207 287 6144
Contact_Facsimile_Telephone: 207 287 4563
Hours_of_Service: Monday through Friday 0800 - 1700 EST
Process_Step:
Process_Description:
The Maine Office of GIS completed the conversion of all final data layers from NAD27 to NAD83 in July 1999. All the data layers were converted using the ArcInfo (version 7.2.1) NADCON conversion by using the "project" command in ArcInfo. All data was copied to double-precision, projected to NAD83, and then copied back to single precision. It was decided to keep the NAD27 quad structure instead of generating new quad boundaries from NAD83 coordinates - all indexes (quads) were projected to NAD83 by using the same process previously described. All the Maine Office of GIS data libraries in ArcInfo Librarian were re-created using the NAD83 indexes and data.
Source_Used_Citation_Abbreviation: megisrivers
Process_Date: 19990701
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: (MEGIS) Maine Office of Geographic Information Systems
Contact_Position: Data Center
Contact_Address:
Address_Type: mailing address
Address: State House Station 145
City: Augusta
State_or_Province: ME
Postal_Code: 04333-145
Country: USA
Contact_Voice_Telephone: 207 287 6144
Contact_Facsimile_Telephone: 207 287 4563
Hours_of_Service: Monday through Friday 0800 - 1700 EST
Process_Step:
Process_Description: Metadata imported.
Source_Used_Citation_Abbreviation: C:\DOCUME~1\sde\LOCALS~1\Temp\a\xml2B.tmp
Process_Step:
Process_Description: Islands were removed.
Process_Step:
Process_Description:
Polygons were split up and coded per designations outlined in MRSA 38 4-A. In very few cases, polygons may also have a SEACLASS designation. River names were assigned.
Process_Step:
Process_Description: Metadata imported.
Source_Used_Citation_Abbreviation: C:\DOCUME~1\sde\LOCALS~1\Temp\d\xmlA.tmp
Process_Step:
Process_Description: Dataset copied.
Source_Used_Citation_Abbreviation: Server=depsunb; Service=sde; User=gis; Version=SDE.DEFAULT
Process_Step:
Process_Description: Metadata imported.
Source_Used_Citation_Abbreviation: C:\DOCUME~1\esri\LOCALS~1\Temp\17\xml6.tmp
Cloud_Cover: 0

Spatial_Data_Organization_Information:
Direct_Spatial_Reference_Method: Vector
Point_and_Vector_Object_Information:
SDTS_Terms_Description:
SDTS_Point_and_Vector_Object_Type: G-polygon
Point_and_Vector_Object_Count: 2216

Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Planar:
Grid_Coordinate_System:
Grid_Coordinate_System_Name: Universal Transverse Mercator
Universal_Transverse_Mercator:
UTM_Zone_Number: 19
Transverse_Mercator:
Scale_Factor_at_Central_Meridian: 0.999600
Longitude_of_Central_Meridian: -69.000000
Latitude_of_Projection_Origin: 0.000000
False_Easting: 500000.000000
False_Northing: 0.000000
Planar_Coordinate_Information:
Planar_Coordinate_Encoding_Method: coordinate pair
Coordinate_Representation:
Abscissa_Resolution: 0.000326
Ordinate_Resolution: 0.000326
Planar_Distance_Units: meters
Geodetic_Model:
Horizontal_Datum_Name: North American Datum of 1983
Ellipsoid_Name: Geodetic Reference System 80
Semi-major_Axis: 6378137.000000
Denominator_of_Flattening_Ratio: 298.257222
Vertical_Coordinate_System_Definition:
Altitude_System_Definition:
Altitude_Resolution: 1.000000
Altitude_Encoding_Method:
Explicit elevation coordinate included with horizontal coordinates

Entity_and_Attribute_Information:
Detailed_Description:
Entity_Type:
Entity_Type_Label: GIS.Rivers
Entity_Type_Definition: polygon attribute table
Entity_Type_Definition_Source: Environmental Systems Research Institute, Inc. (ESRI)
Attribute:
Attribute_Label: OBJECTID
Attribute_Definition: internal SDE ID
Attribute_Definition_Source: ESRI
Attribute_Domain_Values:
Unrepresentable_Domain:
Sequential unique whole numbers that are automatically generated.
Attribute:
Attribute_Label: RIVCLASS
Attribute_Definition: River classifications per MRSA 38 4-A
Attribute_Definition_Source: MEDEP
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: AA
Enumerated_Domain_Value_Definition: highest level of water quality
Enumerated_Domain_Value_Definition_Source: MRSA 38 4-A
Enumerated_Domain:
Enumerated_Domain_Value: A
Enumerated_Domain_Value_Definition: second highest level of water quality
Enumerated_Domain_Value_Definition_Source: MRSA 38 4-A
Enumerated_Domain:
Enumerated_Domain_Value: B
Enumerated_Domain_Value_Definition: second lowest level of water quality
Enumerated_Domain_Value_Definition_Source: MRSA 38 4-A
Enumerated_Domain:
Enumerated_Domain_Value: C
Enumerated_Domain_Value_Definition: lowest level of water quality
Enumerated_Domain_Value_Definition_Source: MRSA 38 4-A
Attribute:
Attribute_Label: NAME
Attribute_Definition: River name
Attribute_Definition_Source: MEDEP
Attribute:
Attribute_Label: SHAPE
Attribute_Definition: Feature geometry.
Attribute_Definition_Source: ESRI
Attribute_Domain_Values:
Unrepresentable_Domain: Coordinates defining the features.
Attribute:
Attribute_Label: SHAPE.AREA
Attribute_Definition: area of polygon in square meters
Attribute_Definition_Source: MEDEP
Attribute_Domain_Values:
Unrepresentable_Domain: Coordinates defining the features.
Attribute:
Attribute_Label: SHAPE.LEN
Attribute_Definition: length of polygon perimeter in meters
Attribute_Definition_Source: MEDEP
Attribute:
Attribute_Label: SEACLASS
Attribute_Definition:
seawater classifications per MRSA 38 4-A (seldom used, most are in coast layer)
Attribute_Definition_Source: MDEP
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: sa
Enumerated_Domain_Value_Definition: highest level of water classification
Enumerated_Domain_Value_Definition_Source: MRSA 38 4-A
Enumerated_Domain:
Enumerated_Domain_Value: sc
Enumerated_Domain_Value_Definition: lowest level of seawater classification
Enumerated_Domain_Value_Definition_Source: MRSA 38 4-A
Overview_Description:
Entity_and_Attribute_Overview:
RIVERS contains double line fresh-water river features coded with the item ISLAND to allow selection of river island polygons. Note that tidal portions of rivers are located in the COAST coverage.

Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: (MEGIS) Maine Office of Geographic Information Systems
Contact_Position: Data Center
Contact_Address:
Address_Type: mailing address
Address: State House Station 145
City: Augusta
State_or_Province: ME
Postal_Code: 04333-145
Country: USA
Contact_Voice_Telephone: 207 287 6144
Contact_Facsimile_Telephone: 207 287 4563
Hours_of_Service: Monday through Friday 0800 - 1700 EST
Resource_Description: Downloadable Data
Distribution_Liability:
Users must assume responsibility to determine the useability of this data for their purpose.
Standard_Order_Process:
Non-digital_Form: map
Fees: See MEGIS website for fees and information.
Turnaround: 15 working days
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name: ARCE
Format_Version_Date: 3/17/99
File_Decompression_Technique: PKZIP compatible
Transfer_Size: 0.02
Digital_Transfer_Option:
Offline_Option:
Offline_Media: 8 mm cartridge tape
Recording_Format: tar
Digital_Transfer_Option:
Offline_Option:
Offline_Media: CD-ROM
Recording_Format: FCC Compliant ISO9660 DOS compatible file names
Digital_Transfer_Option:
Offline_Option:
Offline_Media: CD-ROM
Recording_Format: FCC Compliant ISO9660 long windows file names
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name: <http://apollo.ogis.state.me.us>
Access_Instructions:
Anyone with an internet browser can view and download these data from the http address shown above. Please follow instructions on the website for the internet Data Catalog.
Digital_Transfer_Option:
Offline_Option:
Offline_Media: 3-1/2 inch floppy disk
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name: <ftp://ftp.state.me.us>
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 website at no charge in export file format.
Ordering_Instructions: See MEGIS website for fees and information.
Turnaround: immediate download
Available_Time_Period:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 19970101
Beginning_Time: unknown
Ending_Date: Present
Ending_Time: unknown

Metadata_Reference_Information:
Metadata_Date: 20031230
Metadata_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: Maine DEP GIS Unit
Contact_Person: GIS Manager
Contact_Address:
Address_Type: mailing address
Address: State House Station 17
City: Augusta
State_or_Province: ME
Postal_Code: 04333
Country: USA
Contact_Voice_Telephone: 207 287 6167
Contact_Facsimile_Telephone: 207 287 7896
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:
Please confirm that you are using the most recent copy of both data and metadata from the MEGIS Data Catalog. The MEGIS Data Center provides notice of updates and corrections to MaineGIS data directly to the Maine GIS Technical Group and Maine GIS Users through the MEGISTECH and MEGISUSER listservers . To subscribe please contact the Data Center at (207) 287-6144. To request correction of errors or updates to MEGIS data, a feedback form is available at <http://apollo.ogis.state.me.us>, or you may call the Data Center technical support line at (207) 287-6144 for more information. MEGIS is not responsible for local edits to MaineGIS data or metadata. Updates, corrections, and feedback incorporated in the MaineGIS database are made by MEGIS, in consultation with the Maine GIS Technical Group and in accordance with Data Standards for Maine Geographic Information Systems, 1990.
Metadata_Extensions:
Online_Linkage: <http://www.esri.com/metadata/esriprof80.html>
Profile_Name: ESRI Metadata Profile
Metadata_Extensions:
Online_Linkage: <http://www.esri.com/metadata/esriprof80.html>
Profile_Name: ESRI Metadata Profile
Metadata_Extensions:
Online_Linkage: <http://www.esri.com/metadata/esriprof80.html>
Profile_Name: ESRI Metadata Profile
Metadata_Extensions:
Online_Linkage: <http://www.esri.com/metadata/esriprof80.html>
Profile_Name: ESRI Metadata Profile

Generated by mp version 2.7.33 on Wed Dec 31 08:08:20 2003