Massachusetts Tide Gate Inventory Layer
Metadata also available as
Metadata:
- Identification_Information:
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- Citation:
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- Citation_Information:
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- Originator: Massachusetts Office of Coastal Zone Management
- Publication_Date: 20150414
- Title: Massachusetts Tide Gate Inventory Layer
- Geospatial_Data_Presentation_Form: vector digital data
- Online_Linkage: <http://www.tidegateway.com/MassBays_FieldProtocols_Final.pdf>
- Online_Linkage: <http://www.tidegateway.com>
- Description:
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- Abstract:
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This dataset of tidal control structures in Massachusetts coastal areas (excluding Buzzards Bay, Mount Hope Bay, and the Islands) was developed by using the following general steps: 1) Initial data inventory: Gathered all known existing information on tide gates including tidal atlases, reports, and operations and maintenance manuals and transformed into tabular form. Obtained input and additional existing information from project partners. Compiled all data, identified a list of preliminary data gaps, and used this information to develop a preliminary attribute list. Obtained input and additional existing information from municipalities and other relevant contacts responsible for managing and maintain tide gates within the Massachusetts Bays planning region (e.g., fish and wildlife services). Performed quality checks on all data and completed initial data inventory. 2) Field protocols, inspections, and geodatabase finalization: Developed detailed protocols to be used for collection of attributes in the field. Performed field visits for selected tide gates and compiled additional data from project partners. Uploaded all data, performed quality checks, and finalized the geodatabase.
- Purpose:
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Geosyntec Consultants, Inc (Geosyntec) worked with the Massachusetts Bays National Estuary Program (MassBays), the Massachusetts Office of Coastal Zone Management (CZM), and an Advisory Committee (AC) to lay the groundwork for more active and appropriate management of tide gates in the face of sea level rise projections, ongoing floodplain encroachment, and aging infrastructure. Specific components of the project included: gather and assess existing information related to tide gates in the MassBays planning area; develop and implement a field protocol to gather tide gate data; and develop a desktop tool to assess tide gates for potential impacts to wetland ecology and floodplain function in order to inform the management of these structures. The AC including tide gate managers, regulators, and experts from state and federal agencies including the National Oceanic and Atmospheric Administration (NOAA), the U.S. Environmental Protection Agency (EPA), the Massachusetts Department of Environmental Protection (DEP), CZM, the Massachusetts Department of Conservation and Recreation (DCR), the Division of Ecological Restoration (DER), and the Massachusetts Department of Transportation (DOT) provided input throughout the project.
- Supplemental_Information:
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MassBays/CZM engaged Geosyntec to complete the following tasks: (1) attend a kick off meeting and finalize the scope of work; (2) compile existing information about tide gates within the MassBays planning area; (3) develop a geospatial tool to evaluate tide gate relationship to the built and natural environments; (4) develop a field protocol and conduct field inspections; and (5) draft recommendations regarding the current and future management of tide gates.
- Time_Period_of_Content:
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- Time_Period_Information:
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- Range_of_Dates/Times:
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- Beginning_Date: 20150401
- Ending_Date: 20160201
- Currentness_Reference: publication date
- Status:
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- Progress: Complete
- Maintenance_and_Update_Frequency: As needed
- Spatial_Domain:
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- Bounding_Coordinates:
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- West_Bounding_Coordinate: -71.059532
- East_Bounding_Coordinate: -69.942137
- North_Bounding_Coordinate: 42.831792
- South_Bounding_Coordinate: 41.539365
- Keywords:
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- Theme:
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- Theme_Keyword_Thesaurus: ISO 19115 Topic Category
- Theme_Keyword: structure
- Theme:
-
- Theme_Keyword_Thesaurus: None
- Theme_Keyword: TIDEGateway
- Theme_Keyword: Tide gate inventory
- Theme_Keyword: Massachusetts Bays Program
- Theme_Keyword: Massachusetts Office of Coastal Zone Management
- Theme_Keyword: Tide gates
- Place:
-
- Place_Keyword_Thesaurus: None
- Place_Keyword: Beverly
- Place_Keyword: Rowley
- Place_Keyword: Wellfleet
- Place_Keyword: Salisbury
- Place_Keyword: Duxbury
- Place_Keyword: Scituate
- Place_Keyword: Kingston
- Place_Keyword: Dennis
- Place_Keyword: Marshfield
- Place_Keyword: Swampscott
- Place_Keyword: Falmouth
- Place_Keyword: Barnstable
- Place_Keyword: Brewster
- Place_Keyword: Hull
- Place_Keyword: Ipswich
- Place_Keyword: Manchester
- Place_Keyword: Saugus
- Place_Keyword: Weymouth
- Place_Keyword: Orleans
- Place_Keyword: Cohasset
- Place_Keyword: Everett
- Place_Keyword: Massachusetts
- Place_Keyword: Sandwich
- Place_Keyword: Chelsea
- Place_Keyword: Quincy
- Place_Keyword: Boston
- Place_Keyword: Chatham
- Place_Keyword: Harwich
- Place_Keyword: Winthrop
- Place_Keyword: Eastham
- Place_Keyword: Lynn
- Place_Keyword: Hingham
- Place_Keyword: Salem
- Place_Keyword: Gloucester
- Place_Keyword: Truro
- Place_Keyword: Revere
- Place_Keyword: Gulf of Maine
- Place_Keyword: Massachusetts Bay
- Place_Keyword: Ipswich Bay
- Place_Keyword: Salem Sound
- Place_Keyword: Boston Harbor
- Place_Keyword: Cape Cod Bay
- Access_Constraints: None. These data are in the public domain
- Use_Constraints:
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Public domain data from the Massachusetts Office of Coastal Zone Management (CZM), an agency of the Commonwealth of Massachusetts Executive Office of Energy and Environmental Affairs (EEA), are freely redistributable with proper metadata and source attribution. Please recognize the Massachusetts Office of Coastal Zone Management as the source of these data. You are not permitted to use CZM's name or to suggest that CZM endorses your project or product, without its express written consent. While efforts have been made to ensure that these data are accurate and reliable within the state of the art, CZM cannot assume liability for any damages or misrepresentation caused by any inaccuracies in the data or as a result of changes to the data caused by system transfers. The user must be aware of data conditions and bear responsibility for the appropriate use of these data with respect to possible errors, original map scale, collection methodology, currency of data, and other conditions specific to these data.
- Point_of_Contact:
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- Contact_Information:
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- Contact_Organization_Primary:
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- Contact_Organization: Massachusetts Office of Coastal Zone Management
- Contact_Position: CZM Data Manager
- Contact_Address:
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- Address_Type: mailing and physical
- Address: 251 Causeway Street, Suite 800
- City: Boston
- State_or_Province: Massachusetts
- Postal_Code: 02114-2138
- Country: US
- Contact_Voice_Telephone: 617-626-1200
- Contact_Facsimile_Telephone: 617-626-1240
- Contact_Electronic_Mail_Address: czm@state.ma.us
- Hours_of_Service: 0900 hrs to 1600 hrs EST
- Data_Set_Credit:
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These spatial data were created by the Massachusetts Office of Coastal Zone Management (CZM) for the Massachusetts Executive Office of Energy and Environmental Affairs (EEA).
- Native_Data_Set_Environment:
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Microsoft Windows 7 Version 6.1 (Build 7601) Service Pack 1; Esri ArcGIS 10.4.0.5524
- Data_Quality_Information:
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- Attribute_Accuracy:
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- Attribute_Accuracy_Report:
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Attribute accuracy was originally tested by manual comparison of this dataset with original source reports (e.g., tidal atlases), data tables, and correspondence from project partners. Attributes were subsequently updated based on data collected in the field, and were cross-checked against hard copy originals of field notes.
- Logical_Consistency_Report:
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Where applicable, text and string based fields were set up with structured domains to ensure data consistency (i.e. restricting entries to specific values). All numeric values were also checked for unit consistency, such as ensuring that culvert and tide gate diameters were entered in feet as opposed to inches.
- Completeness_Report:
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This dataset represents locations of all known tide gates based on input from project partners and municipalities within the MassBays Planning Region that meet the project’s definition: “any conveyance of tidal flow with the ability to passively or actively manipulate water flow. This definition includes self-regulating tide gates, manually controlled devices, or passive control structures such as flappers. Structures not included in this definition include, but are not limited to, conveyances installed for the sole purpose of conveying storm drainage. Attributes were populated to the extent possible for known tide gates based on available information obtained from project parters, municipalities, and field visits. Tide gates that were visited as part of the field program generally have a higher level of completed attributes than those that were not visited. Spatial information (i.e. Latitude and Longitude) is not populated for Chelsea-01 as it was could not be accurately located during the initial data review process.
- Positional_Accuracy:
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- Horizontal_Positional_Accuracy:
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- Horizontal_Positional_Accuracy_Report:
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Data compiled or reviewed for horizontal accuracy over NAIP Imagery from 2014; these orthos are known to be +/- 6 meter horizontal; however, this data set cannot be used to reach authoritative conclusions about the horizontal accuracy of the locations depicted. NAIP horizontal accuracy specifications have evolved over the life of the program. From 2003 to 2004 the specifications were as follows: 1-meter GSD imagery was to match within 3-meters. For 2005 the 1-meter GSD specification was changed to 5 meters matching the reference imagery. In 2006 a pilot project was completed using true ground specifications rather than reference imagery. All states used the same specifications as 2005 except Utah, which required a match of +/- 6 meters to true ground. In 2007 all specifications were the same as 2006 except Arizona used true ground specifications and all other states used reference imagery. In 2008 and subsequent years all specifications were the same as 2007 except approximately half of the states acquired used true ground specifications and the other half used reference imagery. The 2008 states that used absolute ground control where; Indiana, Minnesota, New Hampshire, North Carolina, Texas, Vermont, and Virginia. From 2009 to present all NAIP imagery acquisitions used the +/- 6 meters to ground specification.
- Vertical_Positional_Accuracy:
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- Vertical_Positional_Accuracy_Report:
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Vertical accuracies for applicable attributes are outlined below: EX_TIDAL_INF_US: The extent of existing upstream tidal influence is defined as the elevation (in NAVD88 ft) that most closely matches the water surface elevation at Mean High Water Springs (MHWS) upstream of the tide control structure under existing conditions. The extent of tidal influence was assessed in the field based on observed high water marks (i.e. staining) and culvert headwalls or restriction embankments as an indicator where applicable. Once a high water mark was identified, a measuredown was taken using a folding engineer’s ruler and/or telescoping surveyor’s rod to the elevation of the high water mark from a prominent point observable from aerial imagery such as the top of a headwall or embankment. This measuredown was then later post-processed into an elevation based on the Light Detection and Ranging (LiDAR) dataset available from the Massachusetts Office of Geographic Information (MassGIS). The accuracy of this elevation varies widely based on potential human error from identifying a suitable high water mark, measuredown errors, and from the 1 meter vertical resolution of the LiDAR data. As a result, this attribute is intended to provide planning level information (i.e. for general use only) in the absence of more precise information such as water level monitoring data or calibrated hydrologic/hydraulic modeling. The field protocols provide detailed step-by-step instructions for collection of this attribute in the field. EX_TIDAL_INF_DS: The extent of existing downstream tidal influence is defined as the elevation (in NAVD88 ft) that most closely matches the water surface elevation at Mean High Water Springs (MHWS) downstream of the tide control structure under existing conditions. The extent of tidal influence was assessed in the field based on observed high water marks (i.e. staining) and culvert headwalls or restriction embankments as an indicator where applicable. Once a high water mark was identified, a measuredown was taken using a folding engineer’s ruler and/or telescoping surveyor’s rod to the elevation of the high water mark from a prominent point observable from aerial imagery such as the top of a headwall or embankment. This measuredown was then later post-processed into an elevation based on the Light Detection and Ranging (LiDAR) dataset available from the Massachusetts Office of Geographic Information (MassGIS). The accuracy of this elevation varies widely based on potential human error from identifying a suitable high water mark, measuredown errors, and from the 1 meter vertical resolution of the LiDAR data. As a result, this attribute is intended to provide planning level information (i.e. for general use only) in the absence of more precise information such as water level monitoring data or calibrated hydrologic/hydraulic modeling. The field protocols provide detailed step-by-step instructions for collection of this attribute in the field. INV_EL: The tide gate invert elevation (in NAVD88 ft) is defined as the lowest interior point of a tide gate (i.e. bottom) where tidal exchange can occur. Once the invert was identified, a measuredown was take using a folding engineer’s ruler and/or telescoping surveyor’s rod to the invert from a prominent point observable from aerial imagery such as the top of a headwall or embankment. This measuredown was then later post-processed into an elevation based on the Light Detection and Ranging (LiDAR) dataset available from the Massachusetts Office of Geographic Information (MassGIS). The accuracy of this elevation varies widely based on potential human measuredown error and from the 1 meter vertical resolution of the LiDAR data. As a result, this attribute is intended to provide planning level information (i.e. for general use only) in the absence of more precise information such as survey level data. The field protocols provide detailed step-by-step instructions for collection of this attribute in the field.
- Lineage:
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- Source_Information:
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- Source_Citation:
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- Citation_Information:
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- Originator: MassGIS
- Publication_Date: 20020101
- Title: MassGIS Data - LiDAR Terrain Data - 2002 Boston Area
- Geospatial_Data_Presentation_Form: raster digital data
- Online_Linkage:
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<http://www.mass.gov/anf/research-and-tech/it-serv-and-support/application-serv/office-of-geographic-information-massgis/datalayers/lidar.html>
- Type_of_Source_Media: onLine
- Source_Time_Period_of_Content:
-
- Time_Period_Information:
-
- Single_Date/Time:
-
- Calendar_Date: 20020101
- Source_Currentness_Reference: publication date
- Source_Citation_Abbreviation: MASSGIS 2002
- Source_Contribution: MassGIS
- Source_Information:
-
- Source_Citation:
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- Citation_Information:
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- Originator: Jo Ann Muramoto
- Publication_Date: 20140729
- Title: List of Tide Gates in MassBays Program, Cape Cod region
- Geospatial_Data_Presentation_Form: document
- Online_Linkage: N/A
- Type_of_Source_Media: hardcopyPaper
- Source_Time_Period_of_Content:
-
- Time_Period_Information:
-
- Single_Date/Time:
-
- Calendar_Date: 20140729
- Source_Currentness_Reference: publication date
- Source_Citation_Abbreviation: JAM 2014
- Source_Contribution: Jo Ann Muramoto
- Source_Information:
-
- Source_Citation:
-
- Citation_Information:
-
- Originator: Massachusetts Wetlands Restoration and Banking Program
- Publication_Date: 19961201
- Title:
-
Atlas of Tidally Restricted Marshes - North Shore of Massachusetts
- Geospatial_Data_Presentation_Form: atlas
- Online_Linkage:
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<http://www.mass.gov/envir/massbays/pdf/moris/north_shore_tidally_restricted_marshes_atlas.pdf>
- Type_of_Source_Media: hardcopyPaper
- Source_Time_Period_of_Content:
-
- Time_Period_Information:
-
- Single_Date/Time:
-
- Calendar_Date: 19961201
- Source_Currentness_Reference: publication date
- Source_Citation_Abbreviation: MWRBP 1996
- Source_Contribution: Massachusetts Wetlands Restoration and Banking Program
- Source_Information:
-
- Source_Citation:
-
- Citation_Information:
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- Originator: Cape Cod Commission
- Publication_Date: 20011201
- Title: Cape Cod Atlas of Tidally Restricted Salt Marshes
- Geospatial_Data_Presentation_Form: atlas
- Online_Linkage:
-
<http://www.capecodcommission.org/resources/coastalresources/TidalAtlas.pdf>
- Type_of_Source_Media: hardcopyPaper
- Source_Time_Period_of_Content:
-
- Time_Period_Information:
-
- Single_Date/Time:
-
- Calendar_Date: 20011201
- Source_Currentness_Reference: publication date
- Source_Citation_Abbreviation: CCC 2001
- Source_Contribution: Cape Cod Commission
- Source_Information:
-
- Source_Citation:
-
- Citation_Information:
-
- Originator: Metropolitan Area Planning Council
- Publication_Date: 20011201
- Title: Atlas of Tidal Restrictions on the South Shore of Massachusetts
- Geospatial_Data_Presentation_Form: atlas
- Online_Linkage:
-
<http://maps.massgis.state.ma.us/czm/moris/pdfs/habitatatlas/south_shore_atlas.pdf>
- Type_of_Source_Media: hardcopyPaper
- Source_Time_Period_of_Content:
-
- Time_Period_Information:
-
- Single_Date/Time:
-
- Calendar_Date: 20011201
- Source_Currentness_Reference: publication date
- Source_Citation_Abbreviation: MAPC 2001
- Source_Contribution: Metropolitan Area Planning Council
- Source_Information:
-
- Source_Citation:
-
- Citation_Information:
-
- Originator: MassGIS
- Publication_Date: 20110101
- Title: MassGIS Data - LiDAR Terrain Data - 2011 Northeast
- Geospatial_Data_Presentation_Form: raster digital data
- Online_Linkage:
-
<http://www.mass.gov/anf/research-and-tech/it-serv-and-support/application-serv/office-of-geographic-information-massgis/datalayers/lidar.html>
- Type_of_Source_Media: onLine
- Source_Time_Period_of_Content:
-
- Time_Period_Information:
-
- Single_Date/Time:
-
- Calendar_Date: 20110101
- Source_Currentness_Reference: publication date
- Source_Citation_Abbreviation: MASSGIS 2011
- Source_Contribution: MassGIS
- Source_Information:
-
- Source_Citation:
-
- Citation_Information:
-
- Originator: Various Sources
- Publication_Date: 20160401
- Title: Tide Gate Inventory
- Other_Citation_Details:
-
A list of specific sources including a change log by attribute is available on the Tide Gate Inventory portion of www.tidegateway.com for each tide gate. Sources contained within the change log vary widely and include, but aren’t limited to: Massachusetts tidal atlases, operations and maintenance manuals where available, e-mail and other correspondence with project partners, and field visits performed by Geosyntec.
- Online_Linkage: www.tidegateway.com
- Type_of_Source_Media: hardcopyPaper
- Source_Time_Period_of_Content:
-
- Time_Period_Information:
-
- Single_Date/Time:
-
- Calendar_Date: 20160401
- Source_Currentness_Reference: publication date
- Source_Citation_Abbreviation: VARIOUS
- Source_Contribution: Geosyntec
- Source_Information:
-
- Source_Citation:
-
- Citation_Information:
-
- Originator: Geosyntec
- Publication_Date: 20151001
- Title: Field Data Collection & Database Update Protocols
- Geospatial_Data_Presentation_Form: document
- Online_Linkage: <http://www.tidegateway.com/MassBays_FieldProtocols_Final.pdf>
- Type_of_Source_Media: hardcopyPaper
- Source_Time_Period_of_Content:
-
- Time_Period_Information:
-
- Single_Date/Time:
-
- Calendar_Date: 20151001
- Source_Currentness_Reference: publication date
- Source_Citation_Abbreviation: GEO 2016
- Source_Contribution: Geosyntec
- Process_Step:
-
- Process_Description:
-
Gathered all known existing information on tide gates including tidal atlases, reports, and operations and maintenance manuals and transformed into tabular form.
- Process_Date: 20150408
- Process_Contact:
-
- Contact_Information:
-
- Contact_Organization_Primary:
-
- Contact_Organization: Geosyntec
- Contact_Address:
-
- Address_Type: mailing and physical
- Address: 289 Great Road, Suite 202
- City: Acton
- State_or_Province: MA
- Postal_Code: 01720
- Country: US
- Contact_Voice_Telephone: 978-263-9588
- Process_Step:
-
- Process_Description:
-
Obtained input and additional existing information from project partners. Compiled all data, identified a list of preliminary data gaps, and used this information to develop a preliminary attribute list.
- Process_Date: 20150505
- Process_Contact:
-
- Contact_Information:
-
- Contact_Organization_Primary:
-
- Contact_Organization: Geosyntec
- Contact_Address:
-
- Address_Type: mailing and physical
- Address: 289 Great Road, Suite 202
- City: Acton
- State_or_Province: MA
- Postal_Code: 01720
- Country: US
- Contact_Voice_Telephone: 978-263-9588
- Process_Step:
-
- Process_Description:
-
Obtained input and additional existing information from municipalities and other relevant contacts responsible for managing and maintain tide gates within the Massachusetts Bays planning region (e.g., fish and wildlife services).
- Process_Date: 20150717
- Process_Contact:
-
- Contact_Information:
-
- Contact_Organization_Primary:
-
- Contact_Organization: Geosyntec
- Contact_Address:
-
- Address_Type: mailing and physical
- Address: 289 Great Road, Suite 202
- City: Acton
- State_or_Province: MA
- Postal_Code: 01720
- Country: US
- Contact_Voice_Telephone: 978-263-9588
- Process_Step:
-
- Process_Description:
-
Performed quality checks on all data and completed initial data inventory. Quality checks included a review of naming conventions, review of aerial photographs to confirm correct spatial locations, review of unit consistency where applicable (e.g. tide gate diameter), and review of grammar and spelling.
- Process_Date: 20150810
- Process_Contact:
-
- Contact_Information:
-
- Contact_Organization_Primary:
-
- Contact_Organization: Geosyntec
- Contact_Address:
-
- Address_Type: mailing and physical
- Address: 289 Great Road, Suite 202
- City: Acton
- State_or_Province: MA
- Postal_Code: 01720
- Country: US
- Contact_Voice_Telephone: 978-263-9588
- Process_Step:
-
- Process_Description:
-
Developed detailed protocols to be used for collection of attributes in the field.
- Process_Date: 20150814
- Process_Contact:
-
- Contact_Information:
-
- Contact_Organization_Primary:
-
- Contact_Organization: Geosyntec
- Contact_Address:
-
- Address_Type: mailing and physical
- Address: 289 Great Road, Suite 202
- City: Acton
- State_or_Province: MA
- Postal_Code: 01720
- Country: US
- Contact_Voice_Telephone: 978-263-9588
- Process_Step:
-
- Process_Description:
-
Performed field visits for selected tide gates and compiled additional data from project partners.
- Process_Date: 20150908
- Process_Contact:
-
- Contact_Information:
-
- Contact_Organization_Primary:
-
- Contact_Organization: Geosyntec
- Contact_Address:
-
- Address_Type: mailing and physical
- Address: 289 Great Road, Suite 202
- City: Acton
- State_or_Province: MA
- Postal_Code: 01720
- Country: US
- Contact_Voice_Telephone: 978-263-9588
- Process_Step:
-
- Process_Description:
-
Uploaded all data, performed quality checks, and finalized geodatabase.
- Process_Date: 20160204
- Process_Contact:
-
- Contact_Information:
-
- Contact_Organization_Primary:
-
- Contact_Organization: Geosyntec
- Contact_Address:
-
- Address_Type: mailing and physical
- Address: 289 Great Road, Suite 202
- City: Acton
- State_or_Province: MA
- Postal_Code: 01720
- Country: US
- Contact_Voice_Telephone: 978-263-9588
- Spatial_Data_Organization_Information:
-
- Direct_Spatial_Reference_Method: Vector
- Point_and_Vector_Object_Information:
-
- SDTS_Terms_Description:
-
- SDTS_Point_and_Vector_Object_Type: Entity point
- Point_and_Vector_Object_Count: 136
- Spatial_Reference_Information:
-
- Horizontal_Coordinate_System_Definition:
-
- Planar:
-
- Map_Projection:
-
- Map_Projection_Name: NAD 1983 StatePlane Massachusetts Mainland FIPS 2001
- Lambert_Conformal_Conic:
-
- Standard_Parallel: 41.71666666666667
- Standard_Parallel: 42.68333333333333
- Longitude_of_Central_Meridian: -71.5
- Latitude_of_Projection_Origin: 41.0
- False_Easting: 200000.0
- False_Northing: 750000.0
- Planar_Coordinate_Information:
-
- Planar_Coordinate_Encoding_Method: coordinate pair
- Coordinate_Representation:
-
- Abscissa_Resolution: 0.0001
- Ordinate_Resolution: 0.0001
- Planar_Distance_Units: meter
- Geodetic_Model:
-
- Horizontal_Datum_Name: D North American 1983
- Ellipsoid_Name: GRS 1980
- Semi-major_Axis: 6378137.0
- Denominator_of_Flattening_Ratio: 298.257222101
- Entity_and_Attribute_Information:
-
- Detailed_Description:
-
- Entity_Type:
-
- Entity_Type_Label: MassBays_tide_gates_2016
- Entity_Type_Definition:
-
Table containing attribute information associated with the dataset.
- Entity_Type_Definition_Source: Geosyntec
- Attribute:
-
- Attribute_Label: Shape
- Attribute_Definition: Feature geometry.
- Attribute_Definition_Source: Esri
- Attribute_Domain_Values:
-
- Unrepresentable_Domain: Coordinates defining the features.
- Attribute:
-
- Attribute_Label: TIDEGATE_ID
- Attribute_Definition:
-
Unique tide gate identifier. The TIDEGATE_ID field is comprised of three parts based on
the town name, sequential number of tide gates in each town, and sequential lettering
if there are multiple tide gates at one location (i.e. restriction). For example, if there
are 2 tide gates in a town, tide gates in the existing geodatabase are named as Town-
01 and Town-02. If there are multiple tide gates at one location (e.g., multiple culverts
going through the same restriction berm), sequential letters are appended to the tide
gate number. For example, if tide gate 02 in town has three tide gates, the tide gates
would be named Town-02A, Town-02B, and Town-03B.
- Attribute_Definition_Source: Geosyntec
- Attribute_Domain_Values:
-
- Unrepresentable_Domain: Description of features.
- Attribute:
-
- Attribute_Label: UNIQUE_ID
- Attribute_Definition:
-
Unique numeric identifier automatically populated by TIDEGateway.com.
- Attribute_Definition_Source: Esri
- Attribute_Domain_Values:
-
- Unrepresentable_Domain:
-
Sequential unique whole numbers that are automatically generated.
- Attribute:
-
- Attribute_Label: ORIG_ATLAS_ID
- Attribute_Definition:
-
Original unique identifier assigned to tide gate by tidal restriction atlas if applicable. For reference purposes only.
- Attribute_Definition_Source: CZM
- Attribute_Domain_Values:
-
- Unrepresentable_Domain: Description of features.
- Attribute:
-
- Attribute_Label: TOWN
- Attribute_Definition: Name of the town that the tide gate is located in.
- Attribute_Definition_Source: MassGIS
- Attribute_Domain_Values:
-
- Unrepresentable_Domain: Description of features.
- Attribute:
-
- Attribute_Label: LAT
- Attribute_Definition: Latitude (decimal)
- Attribute_Definition_Source: Esri
- Attribute_Domain_Values:
-
- Unrepresentable_Domain: Coordinates defining the features
- Attribute:
-
- Attribute_Label: LON
- Attribute_Definition: Longitude (decimal)
- Attribute_Definition_Source: Esri
- Attribute_Domain_Values:
-
- Unrepresentable_Domain: Coordinates defining the features
- Attribute:
-
- Attribute_Label: WATER_BODY
- Attribute_Definition:
-
Name of the reference water body that the tide gate impounds (if applicable).
- Attribute_Definition_Source: Geosyntec
- Attribute_Domain_Values:
-
- Unrepresentable_Domain: Description of features.
- Attribute:
-
- Attribute_Label: OPERATOR_TYPE
- Attribute_Definition: Tide gate operator type (public, private, or unknown).
- Attribute_Definition_Source: Geosyntec
- Attribute_Domain_Values:
-
- Codeset_Domain:
-
- Codeset_Name: Public
- Codeset_Source: Geosyntec
- Attribute_Domain_Values:
-
- Codeset_Domain:
-
- Codeset_Name: Private
- Codeset_Source: Geosyntec
- Attribute_Domain_Values:
-
- Codeset_Domain:
-
- Codeset_Name: Unknown
- Codeset_Source: Geosyntec
- Attribute:
-
- Attribute_Label: OPERATOR
- Attribute_Definition: Name of the entity responsible for maintaining the tide gate.
- Attribute_Definition_Source: Geosyntec
- Attribute_Domain_Values:
-
- Unrepresentable_Domain: Description of features.
- Attribute:
-
- Attribute_Label: PERMITS
- Attribute_Definition: List of permits associated with the tide gate.
- Attribute_Definition_Source: Geosyntec
- Attribute_Domain_Values:
-
- Unrepresentable_Domain: Description of features.
- Attribute:
-
- Attribute_Label: GEN_COMMENTS
- Attribute_Definition:
-
General comments about the site (e.g., challenging access). This field can also be used to add any observations regarding next steps or missing data (e.g., need keys to access tide gates, need to track down Operations and Maintenance plan, etc.)
- Attribute_Definition_Source: Geosyntec
- Attribute_Domain_Values:
-
- Unrepresentable_Domain: Description of features.
- Attribute:
-
- Attribute_Label: TYPE
- Attribute_Definition:
-
The type of tide gate (flap gate, sluice gate, self-regulating tide gate, stop logs, or tide gate). If type is entered as "tide gate" this is a default entry and indicates that type is unknown.
- Attribute_Definition_Source: Geosyntec
- Attribute_Domain_Values:
-
- Codeset_Domain:
-
- Codeset_Name: flap gate
- Codeset_Source: Geosyntec
- Attribute_Domain_Values:
-
- Codeset_Domain:
-
- Codeset_Name: sluice gate
- Codeset_Source: Geosyntec
- Attribute_Domain_Values:
-
- Codeset_Domain:
-
- Codeset_Name: self-regulating tide gate
- Codeset_Source: Geosyntec
- Attribute_Domain_Values:
-
- Codeset_Domain:
-
- Codeset_Name: stop logs
- Codeset_Source: Geosyntec
- Attribute_Domain_Values:
-
- Codeset_Domain:
-
- Codeset_Name: tide gate
- Codeset_Source: Geosyntec
- Attribute:
-
- Attribute_Label: CNTRL_MECH
- Attribute_Definition:
-
Tide gate control mechanism (N/A, counterweights, electric actuator, manual gear).
- Attribute_Definition_Source: Geosyntec
- Attribute_Domain_Values:
-
- Codeset_Domain:
-
- Codeset_Name: N/A
- Codeset_Source: Geosyntec
- Attribute_Domain_Values:
-
- Codeset_Domain:
-
- Codeset_Name: counterweights
- Codeset_Source: Geosyntec
- Attribute_Domain_Values:
-
- Codeset_Domain:
-
- Codeset_Name: electric actuator
- Codeset_Source: Geosyntec
- Attribute_Domain_Values:
-
- Codeset_Domain:
-
- Codeset_Name: manual gear
- Codeset_Source: Geosyntec
- Attribute:
-
- Attribute_Label: GEOMETRY
- Attribute_Definition: Tide gate geometry (circular, rectangular, or other).
- Attribute_Definition_Source: Geosyntec
- Attribute_Domain_Values:
-
- Codeset_Domain:
-
- Codeset_Name: Rectangular
- Codeset_Source: Geosyntec
- Attribute_Domain_Values:
-
- Codeset_Domain:
-
- Codeset_Name: Other
- Codeset_Source: Geosyntec
- Attribute_Domain_Values:
-
- Codeset_Domain:
-
- Codeset_Name: Circular
- Codeset_Source: Geosyntec
- Attribute:
-
- Attribute_Label: TG_DIAMETER
- Attribute_Definition:
-
Diameter of the tide gate in feet. This field represents the width in feet if the tide gate is rectangular.
- Attribute_Definition_Source: Geosyntec
- Attribute_Domain_Values:
-
- Unrepresentable_Domain: Description of features.
- Attribute:
-
- Attribute_Label: TG_HEIGHT
- Attribute_Definition:
-
Height of the tide gate in feet. If the tide gate is circular, this field is blank.
- Attribute_Definition_Source: Geosyntec
- Attribute_Domain_Values:
-
- Unrepresentable_Domain: Description of features.
- Attribute:
-
- Attribute_Label: EX_TIDAL_INF_US
- Attribute_Definition:
-
Extent of approximate existing upstream tidal influence (NAVD88 ft).
- Attribute_Definition_Source: Geosyntec
- Attribute_Domain_Values:
-
- Unrepresentable_Domain: Description of features.
- Attribute:
-
- Attribute_Label: EX_TIDAL_INF_DS
- Attribute_Definition:
-
Extent of approximate existing downstream tidal influence (NAVD88 ft).
- Attribute_Definition_Source: Geosyntec
- Attribute_Domain_Values:
-
- Unrepresentable_Domain: Description of features.
- Attribute:
-
- Attribute_Label: INV_EL
- Attribute_Definition: Approximate invert elevation of tide gate (NAVD88 ft).
- Attribute_Definition_Source: Geosyntec
- Attribute_Domain_Values:
-
- Unrepresentable_Domain: Description of features.
- Attribute:
-
- Attribute_Label: TG_MATERIAL
- Attribute_Definition:
-
The construction material of the tide gate (metal, concrete, wood, other).
- Attribute_Definition_Source: Geosyntec
- Attribute_Domain_Values:
-
- Codeset_Domain:
-
- Codeset_Name: metal
- Codeset_Source: Geosyntec
- Attribute_Domain_Values:
-
- Codeset_Domain:
-
- Codeset_Name: concrete
- Codeset_Source: Geosyntec
- Attribute_Domain_Values:
-
- Codeset_Domain:
-
- Codeset_Name: wood
- Codeset_Source: Geosyntec
- Attribute_Domain_Values:
-
- Codeset_Domain:
-
- Codeset_Name: other
- Codeset_Source: Geosyntec
- Attribute:
-
- Attribute_Label: TG_CONDITION
- Attribute_Definition:
-
The qualitative (i.e. best judgment) condition of the tide gate (Good, Fair, Poor, Unknown) based on a visual inspection.
- Attribute_Definition_Source: Geosyntec
- Attribute_Domain_Values:
-
- Codeset_Domain:
-
- Codeset_Name: Good
- Codeset_Source: Geosyntec
- Attribute_Domain_Values:
-
- Codeset_Domain:
-
- Codeset_Name: Fair
- Codeset_Source: Geosyntec
- Attribute_Domain_Values:
-
- Codeset_Domain:
-
- Codeset_Name: Poor
- Codeset_Source: Geosyntec
- Attribute_Domain_Values:
-
- Codeset_Domain:
-
- Codeset_Name: Unknown
- Codeset_Source: Geosyntec
- Attribute:
-
- Attribute_Label: INSTALL_DATE
- Attribute_Definition: The installation date of the tide gate if known.
- Attribute_Definition_Source: Geosyntec
- Attribute_Domain_Values:
-
- Unrepresentable_Domain: Description of features.
- Attribute:
-
- Attribute_Label: STATUS
- Attribute_Definition:
-
The operational status of the tide gate (Active, Proposed, Inactive, Unknown, Removed).
- Attribute_Definition_Source: Geosyntec
- Attribute_Domain_Values:
-
- Codeset_Domain:
-
- Codeset_Name: Active
- Codeset_Source: Geosyntec
- Attribute_Domain_Values:
-
- Codeset_Domain:
-
- Codeset_Name: Proposed
- Codeset_Source: Geosyntec
- Attribute_Domain_Values:
-
- Codeset_Domain:
-
- Codeset_Name: Inactive
- Codeset_Source: Geosyntec
- Attribute_Domain_Values:
-
- Codeset_Domain:
-
- Codeset_Name: Unknown
- Codeset_Source: Geosyntec
- Attribute_Domain_Values:
-
- Codeset_Domain:
-
- Codeset_Name: Removed
- Codeset_Source: Geosyntec
- Attribute:
-
- Attribute_Label: OP_PURPOSE
- Attribute_Definition:
-
The operational purpose of the tide gate (flood protection, flood protection and restoration, restoration, other).
- Attribute_Definition_Source: Geosyntec
- Attribute_Domain_Values:
-
- Unrepresentable_Domain: Description of features.
- Attribute:
-
- Attribute_Label: OP_PLAN
- Attribute_Definition:
-
Indicates if an operational plan is present for the tide gate (yes/no).
- Attribute_Definition_Source: Geosyntec
- Attribute_Domain_Values:
-
- Codeset_Domain:
-
- Codeset_Name: Yes
- Codeset_Source: Geosyntec
- Attribute_Domain_Values:
-
- Codeset_Domain:
-
- Codeset_Name: No
- Codeset_Source: Geosyntec
- Attribute:
-
- Attribute_Label: OP_COMMENTS
- Attribute_Definition:
-
Operational notes associated with tide gate. This can include the responsible party for operating the tide gate, references to any Operations and Maintenance manuals, permits, or other comments. For example, close prior to storm, open incrementally every year to enable incremental restoration, etc.
- Attribute_Definition_Source: Geosyntec
- Attribute_Domain_Values:
-
- Unrepresentable_Domain: Description of features.
- Attribute:
-
- Attribute_Label: TG_COMMENTS
- Attribute_Definition:
-
Includes miscellaneous comments associated with tide gate. This can include extraneous information on the tide gate condition, or operational status (e.g., hinge is broken and tide gate no longer appears to be operating).
- Attribute_Definition_Source: Geosyntec
- Attribute_Domain_Values:
-
- Unrepresentable_Domain: Description of features.
- Attribute:
-
- Attribute_Label: RESTRIC_SURF
- Attribute_Definition:
-
The restriction medium in which the tide gate is installed (beach, berm, dam, footpath, railroad, retaining wall, roadway, other).
- Attribute_Definition_Source: Geosyntec
- Attribute_Domain_Values:
-
- Codeset_Domain:
-
- Codeset_Name: beach
- Codeset_Source: Geosyntec
- Attribute_Domain_Values:
-
- Codeset_Domain:
-
- Codeset_Name: berm
- Codeset_Source: Geosyntec
- Attribute_Domain_Values:
-
- Codeset_Domain:
-
- Codeset_Name: dam
- Codeset_Source: Geosyntec
- Attribute_Domain_Values:
-
- Codeset_Domain:
-
- Codeset_Name: footpath
- Codeset_Source: Geosyntec
- Attribute_Domain_Values:
-
- Codeset_Domain:
-
- Codeset_Name: railroad
- Codeset_Source: Geosyntec
- Attribute_Domain_Values:
-
- Codeset_Domain:
-
- Codeset_Name: retaining wall
- Codeset_Source: Geosyntec
- Attribute_Domain_Values:
-
- Codeset_Domain:
-
- Codeset_Name: roadway
- Codeset_Source: Geosyntec
- Attribute_Domain_Values:
-
- Codeset_Domain:
-
- Codeset_Name: other
- Codeset_Source: Geosyntec
- Attribute:
-
- Attribute_Label: CUL_GEOMETRY
- Attribute_Definition: Culvert geometry (circular, rectangular, or other).
- Attribute_Definition_Source: Geosyntec
- Attribute_Domain_Values:
-
- Codeset_Domain:
-
- Codeset_Name: Circular
- Codeset_Source: Geosyntec
- Attribute_Domain_Values:
-
- Codeset_Domain:
-
- Codeset_Name: Rectangular
- Codeset_Source: Geosyntec
- Attribute_Domain_Values:
-
- Codeset_Domain:
-
- Codeset_Name: Other
- Codeset_Source: Geosyntec
- Attribute:
-
- Attribute_Label: CUL_DIAMETER
- Attribute_Definition:
-
Diameter of the culvert in feet. This field represents the width in feet if the culvert is rectangular.
- Attribute_Definition_Source: Geosyntec
- Attribute_Domain_Values:
-
- Unrepresentable_Domain: Description of features.
- Attribute:
-
- Attribute_Label: CUL_HEIGHT
- Attribute_Definition:
-
Height of the culvert in feet. If the culvert is circular, this field is blank.
- Attribute_Definition_Source: Geosyntec
- Attribute_Domain_Values:
-
- Unrepresentable_Domain: Description of features.
- Attribute:
-
- Attribute_Label: CUL_MATERIAL
- Attribute_Definition:
-
The construction material of the culvert (metal, concrete, wood, other).
- Attribute_Definition_Source: Geosyntec
- Attribute_Domain_Values:
-
- Codeset_Domain:
-
- Codeset_Name: Metal
- Codeset_Source: Geosyntec
- Attribute_Domain_Values:
-
- Codeset_Domain:
-
- Codeset_Name: Concrete
- Codeset_Source: Geosyntec
- Attribute_Domain_Values:
-
- Codeset_Domain:
-
- Codeset_Name: Wood
- Codeset_Source: Geosyntec
- Attribute_Domain_Values:
-
- Codeset_Domain:
-
- Codeset_Name: Other
- Codeset_Source: Geosyntec
- Attribute:
-
- Attribute_Label: CUL_MAT_BOT
- Attribute_Definition: The bottom material of the culvert (riprap, sand, stone, other)
- Attribute_Definition_Source: Geosyntec
- Attribute_Domain_Values:
-
- Codeset_Domain:
-
- Codeset_Name: Riprap
- Codeset_Source: Geosyntec
- Attribute_Domain_Values:
-
- Codeset_Domain:
-
- Codeset_Name: Sand
- Codeset_Source: Geosyntec
- Attribute_Domain_Values:
-
- Codeset_Domain:
-
- Codeset_Name: Stone
- Codeset_Source: Geosyntec
- Attribute_Domain_Values:
-
- Codeset_Domain:
-
- Codeset_Name: Other
- Codeset_Source: Geosyntec
- Attribute:
-
- Attribute_Label: CUL_CONDITION
- Attribute_Definition:
-
The qualitative (i.e. best judgment) condition of the culvert (Good, Fair, Poor, Unknown) based on a visual inspection.
- Attribute_Definition_Source: Geosyntec
- Attribute_Domain_Values:
-
- Codeset_Domain:
-
- Codeset_Name: Good
- Codeset_Source: Geosyntec
- Attribute_Domain_Values:
-
- Codeset_Domain:
-
- Codeset_Name: Fair
- Codeset_Source: Geosyntec
- Attribute_Domain_Values:
-
- Codeset_Domain:
-
- Codeset_Name: Poor
- Codeset_Source: Geosyntec
- Attribute_Domain_Values:
-
- Codeset_Domain:
-
- Codeset_Name: Unknown
- Codeset_Source: Geosyntec
- Attribute:
-
- Attribute_Label: CUL_COMMENTS
- Attribute_Definition:
-
Includes miscellaneous comments associated with culvert. This can include extraneous information on the culvert condition, or operational status.
- Attribute_Definition_Source: Geosyntec
- Attribute_Domain_Values:
-
- Unrepresentable_Domain: Description of features.
- Attribute:
-
- Attribute_Label: INVASIVE_SP
- Attribute_Definition:
-
Indicates if any invasive species were observed upstream of the tide gate (Yes or No).
- Attribute_Definition_Source: Geosyntec
- Attribute_Domain_Values:
-
- Unrepresentable_Domain: Description of features.
- Attribute:
-
- Attribute_Label: INVASIVE_COMMENTS
- Attribute_Definition:
-
Indicates type of invasive species if known and any comments (e.g., abundant phragmites, purple loosestrife, etc.).
- Attribute_Definition_Source: Geosyntec
- Attribute_Domain_Values:
-
- Unrepresentable_Domain: Description of features.
- Attribute:
-
- Attribute_Label: US_TOTAL
- Attribute_Definition:
-
This is the total affected area (in acres) upstream of the tide gate based on tidal atlas data and is for reference purposes only.
- Attribute_Definition_Source: Geosyntec
- Attribute_Domain_Values:
-
- Unrepresentable_Domain: Description of features.
- Attribute:
-
- Attribute_Label: US_MARSH
- Attribute_Definition:
-
This is the total affected salt marsh area (in acres) upstream of the tide gate based on tidal atlas data and is for reference purposes only.
- Attribute_Definition_Source: Geosyntec
- Attribute_Domain_Values:
-
- Unrepresentable_Domain: Description of features.
- Attribute:
-
- Attribute_Label: REST_STATUS
- Attribute_Definition:
-
If known and applicable, indicates the restoration status of the impounded area (Proposed, In-Progress, Complete).
- Attribute_Definition_Source: Geosyntec
- Attribute_Domain_Values:
-
- Unrepresentable_Domain: Description of features.
- Attribute:
-
- Attribute_Label: REST_COMMENTS
- Attribute_Definition:
-
Includes miscellaneous restoration comments associated with the tide gate. (e.g., S. alterniflora establishing itself on west bank)
- Attribute_Definition_Source: Geosyntec
- Attribute_Domain_Values:
-
- Unrepresentable_Domain: Description of features.
- Distribution_Information:
-
- Distributor:
-
- Contact_Information:
-
- Contact_Organization_Primary:
-
- Contact_Organization: Massachusetts Office of Coastal Zone Management
- Contact_Position: CZM Data Manager
- Contact_Address:
-
- Address_Type: mailing and physical
- Address: 251 Causeway Street, Suite 800
- City: Boston
- State_or_Province: Massachusetts
- Postal_Code: 02114-2138
- Country: US
- Contact_Voice_Telephone: 617-626-1200
- Contact_Facsimile_Telephone: 617-626-1240
- Contact_Electronic_Mail_Address: czm@state.ma.us
- Hours_of_Service: 0900 hrs to 1600 hrs EST
- Resource_Description: These data are in the public domain
- Distribution_Liability:
-
Although every effort has been made to ensure the accuracy of these data, errors and conditions originating from physical sources used to develop these data 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. In no event shall CZM be liable for any damages, whether general, special, incidental or consequential damages, arising out of your use of these data. Your sole remedy for damages is to stop using the data. You agree to defend, indemnify, and hold harmless CZM and its employees against any claim, loss, liability or expense, including attorneys' fees, resulting from loss of or damage to property or the injury to or death of any person arising out of the use of the data. Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the CZM.
- Custom_Order_Process: See Distributor Information
- Metadata_Reference_Information:
-
- Metadata_Date: 20160803
- Metadata_Contact:
-
- Contact_Information:
-
- Contact_Organization_Primary:
-
- Contact_Organization: Massachusetts Office of Coastal Zone Management
- Contact_Position: CZM Data Manager
- Contact_Address:
-
- Address_Type: mailing and physical
- Address: 251 Causeway Street, Suite 800
- City: Boston
- State_or_Province: MA
- Postal_Code: 02114-2138
- Country: US
- Contact_Voice_Telephone: 617-626-1200
- Contact_Facsimile_Telephone: 617-626-1240
- Contact_Electronic_Mail_Address: czm@state.ma.us
- Hours_of_Service: 0900 hrs to 1600 hrs EST
- Metadata_Standard_Name: FGDC Content Standard for Digital Geospatial Metadata
- Metadata_Standard_Version: FGDC-STD-001-1998
- Metadata_Time_Convention: local time
Generated by mp version 2.9.12 on Wed Aug 03 07:56:03 2016