hydrology

Metadata:

• Identification_Information
• Data_Quality_Information
• Spatial_Data_Organization_Information
• Spatial_Reference_Information
• Entity_and_Attribute_Information
• Distribution_Information
• Metadata_Reference_Information

Identification_Information:

Citation:

Citation_Information:

Originator: Connecticut. Natrual Resources Center.

Publication_Date: 1995

Title: hydrology

Edition: Version 2

Geospatial_Data_Presentation_Form: vector digital data

Online_Linkage: <http://magic.lib.uconn.edu/>

Description:

Abstract:

The Hydrography Master Archive Data Layer (HYDROM) includes all of the water bodies and associated features that appear on the U.S. Geological Survey (USGS) 7.5 minute topographic quadrangle maps that cover the State of Connecticut. These quadrangle areas also cover portions of Massachusetts, New York and Rhode Island. Hydrography features are represented as combinations of polygons and lines and are classified as they are depicted on the published quadrangle maps. Rivers, streams, lakes, ponds, marshes, bays, tidal flats, rocks, channels, and dams are example classifications. In general, single line streams, shorelines, and dams are represented as lines; and double line streams, lakes, ponds, bays, channels, tidal flats, rocks, and marshes are polygons. The classification is intended to support cartographic products (plotting base maps) and spatial analysis with other 1:24,000 scale data layers. The Hydrography Master Archive Data Layer depicts information from 7.5 minute quadrangle maps and does not reflect any recent shoreline or water body changes, natural or manmade. HYDROM was developed using USGS Digital Line Graphs (DLG). Through a cooperative agreement between the USGS and the Connecticut Department of Environmental Protection (DEP), the USGS produced DLGs for all of the 7.5 minute 1:24,000 scale quadrangle maps for Connecticut. Produced in the mid to late 1980's, these DLGs represent boundary, hydrography and transportation information appearing on quadrangle maps published between 1969 and 1984.

Purpose:

HYDROM is intended to serve as the Master Archive Data Layer for hydrography information for the Connecticut Department of Environmental Protection GIS. All updates and corrections should be made to the individual quadrangle tile coverages that comprise HYDROM.

Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 1990

Range_of_Dates/Times:

Beginning_Date: 19690000

Ending_Date: 19840000

Currentness_Reference:

Status:

Progress: Complete

Maintenance_and_Update_Frequency: Irregular

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: -73.063492

East_Bounding_Coordinate: -72.874919

North_Bounding_Coordinate: 41.437864

South_Bounding_Coordinate: 41.187591

Keywords:

Theme:

Theme_Keyword_Thesaurus: FGDC

Theme_Keyword: Boundary

Theme_Keyword: Hydrography

Theme_Keyword: Marshes

Theme_Keyword: River

Theme_Keyword: Streams

Theme_Keyword: Watersheds

Place:

Place_Keyword_Thesaurus:

Place_Keyword: New Haven

Stratum:

Stratum_Keyword_Thesaurus: None

Stratum_Keyword: None

Temporal:

Temporal_Keyword_Thesaurus: None

Access_Constraints: None

Use_Constraints: None

Point_of_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Howie Sternberg

Contact_Organization_Primary:

Contact_Organization:

Natural Resources Center, Dept. of Environmental Protection, Connecticut.

Contact_Position: GIS Coordinator

Contact_Address:

Address_Type: Mailing and Physical Address

Address: Natural Resources Center

Address: Dept. of Environmental Protection.

Address: 79 Elm St.

City: Hartford

State_or_Province: CT

Postal_Code: 06106-5127

Contact_Voice_Telephone: (860) 424-3540

Contact_Facsimile_Telephone: (860) 424-4058

Contact_Electronic_Mail_Address: howard.sternberg@po.state.ct.us

Hours_of_Service: 8:00 a.m. to 4:00 p.m. Monday Through Friday

Contact_Instructions: Unavailable

Native_Data_Set_Environment:

Microsoft Windows 2000 Version 5.0 (Build 2195) Service Pack 3; ESRI ArcCatalog 8.3.0.800

Data_Quality_Information:

Attribute_Accuracy:

Attribute_Accuracy_Report:

Conforms to Connecticut Department of Environmental Protection DEP-GIS Spatial Data Standards.

Logical_Consistency_Report:

Conforms to Connecticut Department of Environmental Protection DEP-GIS Database Design Standards

Positional_Accuracy:

Horizontal_Positional_Accuracy:

Horizontal_Positional_Accuracy_Report: Not determined

Lineage:

Source_Information:

Source_Citation:

Source_Scale_Denominator: 24000

Type_of_Source_Media: Magnetic Tape

Source_Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 1990

Range_of_Dates/Times:

Beginning_Date: 1948

Ending_Date: 1991

Source_Currentness_Reference:

Source_Citation_Abbreviation: None

Source_Contribution: None

Process_Step:

Process_Description:

Processing in MAGIC: Data were supplied to the Map and Geographic Information Center (MAGIC) by the data producer, Natural Resource Center, ConnDEP as uncompressed E00 files and as DXF files. The E00 files were tranformed to MIF files using MapInfo's ArcLink utility. ConnDEP is the sole authority of content of the dataset.

Process_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: Map and Geographic Information Center

Contact_Position: Map Librarian

Contact_Address:

Address_Type: Mailing Address

Address: MAGIC U-5m

Address: Homer Babbidge Library

Address: 369 Fairfield Rd.

City: Storrs

State_or_Province: CT

Postal_Code: 06269

Contact_Voice_Telephone: (860) 486-4589

Hours_of_Service: 9-12, 1-5 M-F, 18:30-21:30 M-W

Process_Step:

Process_Description:

USGS Digital Line Graph Files - Digital Line Graph (DLG) is line map information in a standard USGS digital form. For Connecticut, the USGS produced DLGs for the 1:24,000 scale 7.5 minute quadrangle maps published between 1969 and 1984. The Connecticut DLGs included information for three data categories: Boundaries, Hydrography and Transportation. HYDROM is based on DLG data from the Hydrography category.

Source_Used_Citation_Abbreviation: None

Process_Date: Unknown

Process_Time: Unknown

Process_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Howie Sternberg

Contact_Organization_Primary:

Contact_Organization:

Natural Resources Center, Dept. of Environmental Protection, Connecticut.

Contact_Position: GIS Coordinator

Contact_Address:

Address_Type: Mailing and Physical Address

Address: Natural Resources Center

Address: Dept. of Environmental Protection.

Address: 79 Elm St.

City: Hartford

State_or_Province: CT

Postal_Code: 06106-5127

Contact_Voice_Telephone: (860) 424-3540

Contact_Facsimile_Telephone: (860) 424-4058

Contact_Electronic_Mail_Address: howard.sternberg@po.state.ct.us

Hours_of_Service: 8:00 a.m. to 4:00 p.m. Monday Through Friday

Contact_Instructions: Unavailable

Process_Step:

Process_Description:

First Set of Quadrangle Coverages - Using ARC/INFO software, DEP converted the DLGs to ARC/INFO coverage format and processed DLG Hydrography information in the following manner. First, the digitized streams, lakes, ponds, marshes, etc. were checked against the corresponding features on the published quadrangle maps. Visual comparisons using 1:24,000 scale check plots combined with automated procedures to identify inconsistent attribute coding were the primary means of evaluating and correcting obvious errors with the original DLG data. Corrections were made to DLG major and minor codes in the ARC/INFO coverages and were the basis for the HYARC_COD arc and HYPOLY_COD polygon attributes in the final data layer.

Process_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Howie Sternberg

Contact_Organization_Primary:

Contact_Organization:

Natural Resources Center, Dept. of Environmental Protection, Connecticut.

Contact_Position: GIS Coordinator

Contact_Address:

Address_Type: Mailing and Physical Address

Address: Natural Resources Center

Address: Dept. of Environmental Protection.

Address: 79 Elm St.

City: Hartford

State_or_Province: CT

Postal_Code: 06106-5127

Contact_Voice_Telephone: (860) 424-3540

Contact_Facsimile_Telephone: (860) 424-4058

Contact_Electronic_Mail_Address: howard.sternberg@po.state.ct.us

Hours_of_Service: 8:00 a.m. to 4:00 p.m. Monday Through Friday

Contact_Instructions: Unavailable

Process_Step:

Process_Description:

Quadrangle Edge matching - Arcs crossing quadrangle boundaries were individually edge matched and visually checked for accuracy. Except for those arcs defining the limits of marsh areas, all arcs along quadrangle boundaries were edge matched. Beginning with quadrangle 1 in the Northwest corner of Connecticut, features were edge matched to line up with corresponding features on adjacent quadrangles through a process of checkerboard edge matching. Every other quadrangle was adjusted such that arcs were snapped to connect with the corresponding stationary features on adjacent quadrangles. Exceptions to the checkerboard pattern were made on a case by case basis and were usually resolved by adjusting an older feature to a newer feature. On occasion, there were no corresponding features on the adjacent quadrangles so some water bodies prematurely end at quadrangle boundaries. This is mostly due to variations in quadrangle publication dates. Also observed, but not resolved, were instances where DLG major and minor coding was inconsistent from quadrangle to quadrangle. Consequently, codes for some hydrography features change when crossing quadrangle boundaries.

Process_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Howie Sternberg

Contact_Organization_Primary:

Contact_Organization:

Natural Resources Center, Dept. of Environmental Protection, Connecticut.

Contact_Position: GIS Coordinator

Contact_Address:

Address_Type: Mailing and Physical Address

Address: Natural Resources Center

Address: Dept. of Environmental Protection.

Address: 79 Elm St.

City: Hartford

State_or_Province: CT

Postal_Code: 06106-5127

Contact_Voice_Telephone: (860) 424-3540

Contact_Facsimile_Telephone: (860) 424-4058

Contact_Electronic_Mail_Address: howard.sternberg@po.state.ct.us

Hours_of_Service: 8:00 a.m. to 4:00 p.m. Monday Through Friday

Contact_Instructions: Unavailable

Process_Step:

Process_Description:

Final Quadrangle Coverages - Final HYDROM quadrangle coverages were named using the HY coverage name prefix. For example, the coverage for quadrangle 1 was named HY0001. Arcs where unsplit to eliminate unnecessary pseudo nodes, all polygons had label points, and final topology was established, with both fuzzy and dangle tolerances verified. At this stage, HYDROM had been fully attributed and was ready to be archived.

Process_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Howie Sternberg

Contact_Organization_Primary:

Contact_Organization:

Natural Resources Center, Dept. of Environmental Protection, Connecticut.

Contact_Position: GIS Coordinator

Contact_Address:

Address_Type: Mailing and Physical Address

Address: Natural Resources Center

Address: Dept. of Environmental Protection.

Address: 79 Elm St.

City: Hartford

State_or_Province: CT

Postal_Code: 06106-5127

Contact_Voice_Telephone: (860) 424-3540

Contact_Facsimile_Telephone: (860) 424-4058

Contact_Electronic_Mail_Address: howard.sternberg@po.state.ct.us

Hours_of_Service: 8:00 a.m. to 4:00 p.m. Monday Through Friday

Contact_Instructions: Unavailable

Process_Step:

Process_Description:

ConnDEP's ESRI Map Library - One by one, the individual HYDROM quadrangle coverages were inserted into the Quadrangle Map Library (QLIB) to form the HYDROMASTER map library data layer. QLIB is the permanent storage location for HYDROM.

Process_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Howie Sternberg

Contact_Organization_Primary:

Contact_Organization:

Natural Resources Center, Dept. of Environmental Protection, Connecticut.

Contact_Position: GIS Coordinator

Contact_Address:

Address_Type: Mailing and Physical Address

Address: Natural Resources Center

Address: Dept. of Environmental Protection.

Address: 79 Elm St.

City: Hartford

State_or_Province: CT

Postal_Code: 06106-5127

Contact_Voice_Telephone: (860) 424-3540

Contact_Facsimile_Telephone: (860) 424-4058

Contact_Electronic_Mail_Address: howard.sternberg@po.state.ct.us

Hours_of_Service: 8:00 a.m. to 4:00 p.m. Monday Through Friday

Contact_Instructions: Unavailable

Process_Step:

Process_Description:

Polygon Attributes - The Hydrography Polygon Code (HYPOLY_COD) represents the underlying classification scheme for all polygons and is a modified version of attribute information from the original USGS DLG major and minor codes. HYPOLY_COD includes codes for identifying open water polygons, streams, rivers, brooks, lakes, ponds, tidal flats, rocks, marsh areas, etc. See the HYPOLY.COD code table for a complete list of codes. Based on HYPOLY_COD, AV_LEGEND was developed to easily classify and symbolize hydrography polygons in Arcview. Complementing the COASTA_COD arc item, which defines a coastline based on hydrography shoreline arcs, COASTP_COD identifies polygon areas within this coastal area. PHOTREV_FLG flags hydrography polygons that are the result of photo revisions made to the published quadrangles (on the quadrangles, photo revised features are printed in purple). QUAD_NO identifies the 7.5 minute quadrangle map the polygons are located on. STREAM_NO, LAKE_NO, BAY_NO, HARBOR_NO, and SOUND_NO identify named streams, lakes, bays, harbors and sounds. Refer to the STREAMNO.COD, LAKENO.COD, BAYNO.COD, HARBNO.COD and SOUNDNO.COD code tables for possible values. ACREAGE and AREA_SQMI values represent polygon AREA in acres and square miles, respectively. These values are based on that of AREA, which is computed by ARC/INFO and stored in units of square feet. All attributes were visually compared to 7.5 minute quadrangle maps.

Process_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Howie Sternberg

Contact_Organization_Primary:

Contact_Organization:

Natural Resources Center, Dept. of Environmental Protection, Connecticut.

Contact_Position: GIS Coordinator

Contact_Address:

Address_Type: Mailing and Physical Address

Address: Natural Resources Center

Address: Dept. of Environmental Protection.

Address: 79 Elm St.

City: Hartford

State_or_Province: CT

Postal_Code: 06106-5127

Contact_Voice_Telephone: (860) 424-3540

Contact_Facsimile_Telephone: (860) 424-4058

Contact_Electronic_Mail_Address: howard.sternberg@po.state.ct.us

Hours_of_Service: 8:00 a.m. to 4:00 p.m. Monday Through Friday

Contact_Instructions: Unavailable

Process_Step:

Process_Description:

Arc Attributes - The Hydrography Arc Code (HYARC_COD) represents the underlying classification scheme for all arcs and is a modified version of attribute information from the original USGS DLG major and minor codes. HYARC_COD includes codes for identifying single line streams, rivers, brooks, ditches, canals, dams, lake boundaries, shorelines, and apparent limits of marsh areas, etc. See the HYARC.COD code table for a complete list of codes. Based on HYARC_COD, AV_LEGEND was developed to easily classify and symbolize hydrography arcs in Arcview. COASTA_COD identifies arcs that mark a coastline based on hydrography shoreline boundaries. PHOTREV_FLG flags hydrography arcs that are the result of photo revisions made to the published quadrangles (on the quadrangles, photo revised features are printed in purple). QUAD_NO identifies the 7.5 minute quadrangle map the arcs are located on. STREAM_NO, STREAM_NO2, LAKE_NO, LAKE_NO2, BAY_NO, BAY_NO2, HARBOR_NO, HARBOR_NO2, SOUND_NO and SOUND_NO2 identify named streams, lakes, bays, harbors and sounds bound on both sides of arcs. Refer to the STREAMNO.COD, LAKENO.COD, BAYNO.COD, HARBNO.COD and SOUNDNO.COD code tables for possible values. LENGTH_MI represents arc LENGTH in miles and is based on that of LENGTH, which is computed by ARC/INFO and stored in units of feet. All attributes were visually compared to 7.5 minute quadrangle maps.

Process_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Howie Sternberg

Contact_Organization_Primary:

Contact_Organization:

Natural Resources Center, Dept. of Environmental Protection, Connecticut.

Contact_Position: GIS Coordinator

Contact_Address:

Address_Type: Mailing and Physical Address

Address: Natural Resources Center

Address: Dept. of Environmental Protection.

Address: 79 Elm St.

City: Hartford

State_or_Province: CT

Postal_Code: 06106-5127

Contact_Voice_Telephone: (860) 424-3540

Contact_Facsimile_Telephone: (860) 424-4058

Contact_Electronic_Mail_Address: howard.sternberg@po.state.ct.us

Hours_of_Service: 8:00 a.m. to 4:00 p.m. Monday Through Friday

Contact_Instructions: Unavailable

Process_Step:

Process_Description:

Revisions made to data: Version 2 (1994) - HYDROM represents a slightly enhanced version of the DLG based detailed hydrography layer initially processed by DEP in the late 1980's. Enhancements were required for consistency with DEP's Database Design Standards and primarily affect attribute naming. STREAM_NO, LAKE_NO, BAY_NO, HARBOR_NO, SOUND_NO, and AV_LEGEND fields were also added for naming water bodies and symbolizing in Arcview. No changes were made to the actual attribute values or to the features themselves (coordinate information). Replaces all earlier versions.

Process_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Howie Sternberg

Contact_Organization_Primary:

Contact_Organization:

Natural Resources Center, Dept. of Environmental Protection, Connecticut.

Contact_Position: GIS Coordinator

Contact_Address:

Address_Type: Mailing and Physical Address

Address: Natural Resources Center

Address: Dept. of Environmental Protection.

Address: 79 Elm St.

City: Hartford

State_or_Province: CT

Postal_Code: 06106-5127

Contact_Voice_Telephone: (860) 424-3540

Contact_Facsimile_Telephone: (860) 424-4058

Contact_Electronic_Mail_Address: howard.sternberg@po.state.ct.us

Hours_of_Service: 8:00 a.m. to 4:00 p.m. Monday Through Friday

Contact_Instructions: Unavailable

Process_Step:

Process_Description:

Reviews applied to data: Conforms with DEP-GIS Spatial Data Standards. Standards for feature accuracy are: 90 percent of the digitized features are within .01 inch of the centerline of that feature on the manuscript (original map); 100 percent of all features must be within .02 inch. There are NO duplicate features, unresolved intersections, overshooting arcs, open polygons, sliver polygons, or unlabeled polygons. Fuzzy and Dangle Tolerances were verified and set in the TOL file, and the map projection is defined in the PRJ file. Feature IDs in each quadrangle coverage are unique. Conforms with DEP-GIS Database Design Standards. Item names are all in upper case, do not include any special characters except an underscore (_), and are no more than 10 characters long. Code tables provide code descriptions for Items with a _COD extension in their name, and relate Files (.REL) provide relational access to these tables. Standard symbology is defined for ARC/INFO (lineset files) and ARCVIEW (legend file). All character attribute values are in upper case.

Process_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Howie Sternberg

Contact_Organization_Primary:

Contact_Organization:

Natural Resources Center, Dept. of Environmental Protection, Connecticut.

Contact_Position: GIS Coordinator

Contact_Address:

Address_Type: Mailing and Physical Address

Address: Natural Resources Center

Address: Dept. of Environmental Protection.

Address: 79 Elm St.

City: Hartford

State_or_Province: CT

Postal_Code: 06106-5127

Contact_Voice_Telephone: (860) 424-3540

Contact_Facsimile_Telephone: (860) 424-4058

Contact_Electronic_Mail_Address: howard.sternberg@po.state.ct.us

Hours_of_Service: 8:00 a.m. to 4:00 p.m. Monday Through Friday

Contact_Instructions: Unavailable

Process_Step:

Process_Description: Metadata imported.

Source_Used_Citation_Abbreviation: C:\DOCUME~1\fs76\LOCALS~1\Temp\xmlAE.tmp

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: 57

Spatial_Reference_Information:

Horizontal_Coordinate_System_Definition:

Planar:

Grid_Coordinate_System:

Grid_Coordinate_System_Name: State Plane Coordinate System 1983

State_Plane_Coordinate_System:

SPCS_Zone_Identifier: 600

Lambert_Conformal_Conic:

Standard_Parallel: 41.200000

Standard_Parallel: 41.866667

Longitude_of_Central_Meridian: -72.750000

Latitude_of_Projection_Origin: 40.833333

False_Easting: 999999.999996

False_Northing: 499999.999998

Planar_Coordinate_Information:

Planar_Coordinate_Encoding_Method: coordinate pair

Coordinate_Representation:

Abscissa_Resolution: 0.000128

Ordinate_Resolution: 0.000128

Planar_Distance_Units: survey feet

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

Entity_and_Attribute_Information:

Detailed_Description:

Entity_Type:

Entity_Type_Label: hydrology

Attribute:

Attribute_Label: FID

Attribute_Definition: Internal feature number.

Attribute_Definition_Source: ESRI

Attribute_Domain_Values:

Unrepresentable_Domain:

Sequential unique whole numbers that are automatically generated.

Attribute:

Attribute_Label: Shape

Attribute_Definition: Feature geometry.

Attribute_Definition_Source: ESRI

Attribute_Domain_Values:

Unrepresentable_Domain: Coordinates defining the features.

Attribute:

Attribute_Label: ID

Attribute:

Attribute_Label: COUNTY

Attribute:

Attribute_Label: CFCC

Attribute:

Attribute_Label: LANDNAME

Attribute:

Attribute_Label: LANDPOLY

Overview_Description:

Entity_and_Attribute_Overview:

The Hydrography Master Archive Data Layer (HYDROM) includes all of the water bodies and associated features that appear on the U.S. Geological Survey (USGS) 7.5 minute topographic quadrangle maps that cover the State of Connecticut. These quadrangle areas also cover portions of Massachusetts, New York and Rhode Island. Hydrography features are represented as combinations of polygons and lines and are classified as they are depicted on the published quadrangle maps. Rivers, streams, lakes, ponds, marshes, bays, tidal flats, rocks, channels, and dams are example classifications. In general, single line streams, shorelines, and dams are represented as lines; and double line streams, lakes, ponds, bays, channels, tidal flats, rocks, and marshes are polygons. The classification is intended to support cartographic products (plotting base maps) and spatial analysis with other 1:24,000 scale data layers. The Hydrography Master Archive Data Layer depicts information from 7.5 minute quadrangle maps and does not reflect any recent shoreline or water body changes, natural or manmade. HYDROM was developed using USGS Digital Line Graphs (DLG). Through a cooperative agreement between the USGS and the Connecticut Department of Environmental Protection (DEP), the USGS produced DLGs for all of the 7.5 minute 1:24,000 scale quadrangle maps for Connecticut. Produced in the mid to late 1980's, these DLGs represent boundary, hydrography and transportation information appearing on quadrangle maps published between 1969 and 1984.

Entity_and_Attribute_Detail_Citation:

<http://magic.lib.uconn.edu/geospatialdata/metadata/hyd_meta.html#hy2_meta>

Overview_Description:

Entity_and_Attribute_Overview:

The Hydrography Master Archive Data Layer (HYDROM) includes all of the water bodies and associated features that appear on the U.S. Geological Survey (USGS) 7.5 minute topographic quadrangle maps that cover the State of Connecticut. These quadrangle areas also cover portions of Massachusetts, New York and Rhode Island. Hydrography features are represented as combinations of polygons and lines and are classified as they are depicted on the published quadrangle maps. Rivers, streams, lakes, ponds, marshes, bays, tidal flats, rocks, channels, and dams are example classifications. In general, single line streams, shorelines, and dams are represented as lines; and double line streams, lakes, ponds, bays, channels, tidal flats, rocks, and marshes are polygons. The classification is intended to support cartographic products (plotting base maps) and spatial analysis with other 1:24,000 scale data layers. The Hydrography Master Archive Data Layer depicts information from 7.5 minute quadrangle maps and does not reflect any recent shoreline or water body changes, natural or manmade. HYDROM was developed using USGS Digital Line Graphs (DLG). Through a cooperative agreement between the USGS and the Connecticut Department of Environmental Protection (DEP), the USGS produced DLGs for all of the 7.5 minute 1:24,000 scale quadrangle maps for Connecticut. Produced in the mid to late 1980's, these DLGs represent boundary, hydrography and transportation information appearing on quadrangle maps published between 1969 and 1984.

Entity_and_Attribute_Detail_Citation:

<http://magic.lib.uconn.edu/geospatialdata/metadata/hyd_meta.html>

Distribution_Information:

Distributor:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: Map and Geographic Information Center

Contact_Position: Map Librarian

Contact_Address:

Address_Type: Mailing Address

Address: MAGIC U-5m

Address: Homer Babbidge Library

Address: 369 Fairfield Rd.

City: Storrs

State_or_Province: CT

Postal_Code: 06269

Contact_Voice_Telephone: (860) 486-4589

Hours_of_Service: 9-12, 1-5 M-F, 18:30-21:30 M-W

Resource_Description: Downloadable Data

Distribution_Liability:

MAGIC is charged with the distribution of the State's corporate geographic database and, in cooperation with other mapping organizations, is committed to offering its users accurate, useful, and current information about the state. Although every effort has been made to ensure the accuracy of information, errors and conditions originating from physical sources used to develop the corporate database may be reflected in the data supplied. The client must be aware of data conditions and bear responsibility for the appropriate use of the information with respect to possible errors, original map scale, collection methodology, currency of data, and other conditions specific to certain data. MAGIC endorses but does not support secondary distribution of this data.

Standard_Order_Process:

Digital_Form:

Digital_Transfer_Information:

Format_Name: ARC/INFO

Format_Version_Number: Version 7.1

Format_Specification: None

Format_Information_Content: None

Transfer_Size: 0.071

Digital_Transfer_Option:

Online_Option:

Computer_Contact_Information:

Network_Address:

Network_Resource_Name:

<http://magic.lib.uconn.edu/g/37840/hydr/s24/ctdep/hydr.37840.093.1994.s24.ctdep.1.e.zip>

Fees: None

Standard_Order_Process:

Digital_Form:

Digital_Transfer_Information:

Format_Name: MIF

Format_Version_Number: Ver. 3

Format_Specification: None

Transfer_Size: 0.071

Digital_Transfer_Option:

Online_Option:

Computer_Contact_Information:

Network_Address:

Network_Resource_Name:

<http://magic.lib.uconn.edu/g/37840/hydr/s24/ctdep/hydr.37840.093.1994.s24.ctdep.1.m.zip>

Standard_Order_Process:

Digital_Form:

Digital_Transfer_Information:

Format_Name: DXF

Format_Version_Number: Unknown

Transfer_Size: 0.071

Digital_Transfer_Option:

Online_Option:

Computer_Contact_Information:

Network_Address:

Network_Resource_Name:

<http://magic.lib.uconn.edu/g/37840/hydr/s24/ctdep/hydr.37840.093.1994.s24.ctdep.1.d.zip>

Metadata_Reference_Information:

Metadata_Date: 20030910

Metadata_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization:

REQUIRED: The organization responsible for the metadata information.

Contact_Person: REQUIRED: The person responsible for the metadata information.

Contact_Address:

Address_Type:

REQUIRED: The mailing and/or physical address for the organization or individual.

City: REQUIRED: The city of the address.

State_or_Province: REQUIRED: The state or province of the address.

Postal_Code: REQUIRED: The ZIP or other postal code of the address.

Contact_Voice_Telephone:

REQUIRED: The telephone number by which individuals can speak to the organization or individual.

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

Metadata_Security_Information:

Metadata_Security_Classification_System: None

Metadata_Extensions:

Online_Linkage: <http://www.esri.com/metadata/esriprof80.html>

Profile_Name: ESRI Metadata Profile