Tidal Wetlands - NYC and Long Island - 1974 (NYSDEC)

Metadata:


Identification_Information:
Citation:
Citation_Information:
Originator: New York State Department of Environmental Conservation
Publication_Date: 20051101
Title:
Tidal Wetlands - NYC and Long Island - 1974 (NYSDEC)
Geospatial_Data_Presentation_Form: vector digital data
Publication_Information:
Publication_Place: Albany, NY
Publisher: New York State Department of Environmental Conservation
Description:
Abstract:
New York State tidal wetlands south of the Tappan Zee Bridge, as of 1974, for tidal wetlands trend analysis.
Purpose:
To provide a digital representation of tidal wetlands in New York State as of 1974 for tidal wetlands trend analysis
Supplemental_Information:
1. These digital data do not constitute an official tidal wetlands map. The user of the data assumes all responsibility for any action that might result from the use of the data. All measurements and positions are approximate. 
2. The official tidal wetlands inventory maps from which the wetland boundaries were digitized are based on aerial photographs that, though best-fitted to NYSDOT planimetric maps, are nonetheless not ortho-rectified. This, along with shoreline changes that have occurred since 1974 (year of the photography), means that some of the digitized wetland boundaries may not align well with current orthophotography or with other GIS data layers. 
3. Some of the wetland boundaries in the digital data do not appear on the official tidal wetlands inventory maps. These include boundaries added to correct errors/omissions identified during digitizing of the maps, and others added in unmapped 2,000m x 2,000m blocks to connect "dangling" boundaries on adjacent mapped blocks. 
4. Some wetlands labeled as category FC on the official tidal wetlands inventory maps may be coded as HM or IM in the digital data. The re-coding (done during some of the earlier digitizing efforts) was intended to indicate the dominant vegetation type, since this is what determines the regulatory value of FC wetlands. Although the codes for some of these wetlands were reverted to FC during the final digitizing effort, FC-mapped wetlands coded as HM or IM in the digital data may still exist in the areas of Moriches, Quantuck and Shinnecock Bays, Fishers Island and the Town of East Hampton.
Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 20051101
Currentness_Reference:
publication date
Status:
Progress: Complete
Maintenance_and_Update_Frequency: As needed
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -74.268040
East_Bounding_Coordinate: -71.842146
North_Bounding_Coordinate: 41.335121
South_Bounding_Coordinate: 40.448633
Keywords:
Theme:
Theme_Keyword_Thesaurus: ISO 19115 Topic Category
Theme_Keyword: biota
Theme_Keyword: 002
Theme_Keyword: boundaries
Theme_Keyword: 003
Theme_Keyword: environment
Theme_Keyword: 007
Theme_Keyword: geoscientificInformation
Theme_Keyword: 008
Theme_Keyword: imageryBaseMapsEarthCover
Theme_Keyword: 010
Theme_Keyword: inlandWaters
Theme_Keyword: 012
Theme_Keyword: oceans
Theme_Keyword: 014
Theme:
Theme_Keyword_Thesaurus: None
Theme_Keyword: custodial
Theme_Keyword: tidal
Theme_Keyword: wetlands
Theme_Keyword: salt marsh
Place:
Place_Keyword_Thesaurus: Geographic Names Information System http://geonames.usgs.gov/pls/gnispublic
Place_Keyword: New York State
Place_Keyword: Long Island
Place_Keyword: New York City
Place_Keyword: Suffolk County
Place_Keyword: Nassau County
Place_Keyword: Hudson
Place_Keyword: Lower Hudson
Temporal:
Temporal_Keyword_Thesaurus: None
Temporal_Keyword: 1974
Access_Constraints: These digital data do not constitute an official tidal wetlands map. The user of the data assumes all responsibility for any action that might result from the use of the data.
Use_Constraints:
1. The NYS DEC asks to be credited in derived products.
2. Secondary Distribution of the data is not allowed.
3. Any documentation provided is an integral part of the data set.  Failure to use the documentation in conjunction with the digital data constitutes misuse of the data.
4. Although every effort has been made to ensure the accuracy of information, errors may be reflected in the data supplied.  The user 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.
Point_of_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: New York State Department of Environmental Conservation
Contact_Person: Division of Fish, Wildlife, and Marine Resources; Bureau of Wildlife
Contact_Address:
Address_Type: mailing and physical address
Address:
625 Broadway
Address:
5th Floor
City: Albany
State_or_Province: NY
Postal_Code: 12233-4754
Country: USA
Contact_Voice_Telephone: 518-402-8940
Contact_Facsimile_Telephone: 518-402-8925
Contact_Electronic_Mail_Address: fwwildlf@gw.dec.state.ny.us
Security_Information:
Security_Classification_System: None
Security_Classification: Unclassified
Security_Handling_Description: None
Native_Data_Set_Environment:
Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 2; ESRI ArcCatalog 9.2.1.1332
Cross_Reference:
Citation_Information:
Originator: New York State Department of Environmental Conservation
Publication_Date: 20030101
Title:
Tidal Wetlands - Upper Hudson River Estuary - New York State (NYSDEC)
Publication_Information:
Publication_Place: Albany, NY
Publisher: New York State Department of Environmental Conservation
Online_Linkage: tidal_wetlands_upper.html
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Data_Quality_Information:
Logical_Consistency_Report:
None
Completeness_Report:
None
Lineage:
Process_Step:
Process_Description:
Mylar maps were made by enlarging 1974 color infrared aerial photography at 1 inch equals 1,000 feet and best fitting the enlargement to New York State Department of Transportation maps at a scale of 1 inch equals 2,000 feet. Each map, 2,000m x 2,000m, is identified with a six digit New York Transverse Mercator coordinate (NAD27), e.g. 600-526 (600 is 600,000 and 526 is 4,526,000). The maps were not subject to aerial triangulation.
Process_Date: 19740101
Process_Step:
Process_Description:
An edge-matched vector line was digitized in ARC/INFO from mylar maps of the Official New York State Tidal Wetlands Inventory at 1 inch equals 200 feet. The vector lines were used to build polygons that were coded with the tidal wetlands category.
Process_Date: Unknown
Process_Step:
Process_Description:
Data from several digitizing projects were combined into a single ARC/INFO coverage and projected from NAD27 to NAD83.
Process_Date: Unknown
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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: 8216
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Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Planar:
Grid_Coordinate_System:
Grid_Coordinate_System_Name: Universal Transverse Mercator
Universal_Transverse_Mercator:
UTM_Zone_Number: 18
Transverse_Mercator:
Scale_Factor_at_Central_Meridian: 0.999600
Longitude_of_Central_Meridian: -75.000000
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: 0.000000
Ordinate_Resolution: 0.000000
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_Datum_Name: North American Vertical Datum of 1988
Altitude_Resolution: 1.000000
Altitude_Distance_Units: meters
Altitude_Encoding_Method: Explicit elevation coordinate included with horizontal coordinates
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Entity_and_Attribute_Information:
Detailed_Description:
Entity_Type:
Entity_Type_Label: Tidal Wetlands - NYC and Long Island - 1974 (NYSDEC)
Entity_Type_Definition:
Polygon Feature Class
Entity_Type_Definition_Source:
ESRI
Attribute:
Attribute_Label: ID
Attribute_Definition:
Unique number identifying the polygon.
Attribute_Definition_Source:
NYSDEC
Attribute_Domain_Values:
Unrepresentable_Domain:
Unique number identifying the polygon.
Attribute:
Attribute_Label: TWTYPE74
Attribute_Definition:
A numeric code corresponding to the tidal wetlands category
Attribute_Definition_Source:
NYSDEC
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: 2010
Enumerated_Domain_Value_Definition:
SM. Coastal Shoals, Bars and Mudflats.
Enumerated_Domain_Value_Definition_Source:
NYSDEC
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: 2020
Enumerated_Domain_Value_Definition:
LZ. Littoral Zone.
Enumerated_Domain_Value_Definition_Source:
NYSDEC
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: 2030
Enumerated_Domain_Value_Definition:
FC. Formerly Connected.
Enumerated_Domain_Value_Definition_Source:
NYSDEC
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: 3000
Enumerated_Domain_Value_Definition:
IM. Intertidal Marsh.
Enumerated_Domain_Value_Definition_Source:
NYSDEC
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: 3010
Enumerated_Domain_Value_Definition:
FM. Fresh Marsh.
Enumerated_Domain_Value_Definition_Source:
NYSDEC
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: 4000
Enumerated_Domain_Value_Definition:
HM. High Marsh.
Enumerated_Domain_Value_Definition_Source:
NYSDEC
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: 5000
Enumerated_Domain_Value_Definition:
AA. Adjacent Area.
Enumerated_Domain_Value_Definition_Source:
NYSDEC
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: 5010
Enumerated_Domain_Value_Definition:
DS. Dredged Spoil.
Enumerated_Domain_Value_Definition_Source:
NYSDEC
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: 9999
Enumerated_Domain_Value_Definition:
HL. Hole Area includes areas that do not contain tidal wetlands or adjacent area.
Enumerated_Domain_Value_Definition_Source:
NYSDEC
Attribute:
Attribute_Label: ACREAGE74
Attribute_Definition:
Acreage of the polygon calculated by multiplying the AREA field (see below) by 0.0002471. At the 3 decimal places allotted to this item, a few very small polygons have zero acreage.
Attribute_Definition_Source:
NYSDEC
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0
Range_Domain_Maximum: 999999999999
Attribute_Units_of_Measure: Acres
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: TWCAT74
Attribute_Definition:
A two-letter code for the tidal wetlands category. With the exception of AA and HL (see below), these are the codes that are labeled on the 1974 official tidal wetlands inventory maps. Regulated areas (as noted below) are areas that are regulated by law and require a permit review. Management areas (as noted below) are areas that have been identified for management purposes. Management areas are non-tidal areas but may require permit review as adjacent areas or as other protected areas.
Attribute_Definition_Source:
NYSDEC
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: SM
Enumerated_Domain_Value_Definition:
Coastal Shoals, Bars and Mudflats. Regulated area. The tidal wetland zone that at high tide is covered by saline or fresh tidal waters, at low tide is exposed or is covered by water to a maximum depth of approximately one foot, and is not vegetated.
Enumerated_Domain_Value_Definition_Source:
NYSDEC
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: LZ
Enumerated_Domain_Value_Definition:
Littoral Zone. Regulated Area. The tidal wetland zone that includes all lands under tidal water which are not included in any other category and which are six feet or less under water at mean low tide. Note, however, that portions of some areas labeled as LZ on the official tidal wetlands inventory maps (and in the digital data) are almost certainly more than six feet under water at mean low tide. See 6NYCRR Part 661.4 for more detail.
Enumerated_Domain_Value_Definition_Source:
NYSDEC
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: FC
Enumerated_Domain_Value_Definition:
Formerly Connected. The tidal wetland zone in which normal tidal flow is restricted by man-made causes. Phragmites sp. is the dominant vegetation.
Enumerated_Domain_Value_Definition_Source:
NYSDEC
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: IM
Enumerated_Domain_Value_Definition:
Intertidal Marsh. Regulated Area. The vegetated tidal wetland zone lying generally between average high and low tidal elevation in saline waters. The predominant vegetation in this zone is low marsh cordgrass, Spartina alterniflora. See Supplemental Information 4.
Enumerated_Domain_Value_Definition_Source:
NYSDEC
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: FM
Enumerated_Domain_Value_Definition:
Fresh Marsh. Regulated Area. The tidal wetland zone found primarily in the upper tidal limits of riverine systems where significant freshwater inflow dominates the tidal zone. Species normally associated with this zone include narrow leaved cattail, Typha angustifolia; the tall brackish water cordgrass, Spartina pectinata and/or S. cynosuroides; and the more typically emergent fresh water species such as arrow arum, Peltandra; pickerel weed, Pontederia; and cutgrass, Leersia.
Enumerated_Domain_Value_Definition_Source:
NYSDEC
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: HM
Enumerated_Domain_Value_Definition:
HM. High Marsh. Regulated area. The normal uppermost tidal wetland zone usually dominated by salt meadow grass, Spartina patens; and spike grass, Distichlis spicata. This zone is periodically flooded by spring and storm tides and is often vegetated by low vigor, Spartina alterniflora and Seaside lavender, Limonium carolinianum. Upper limits of this zone often include black grass, Juncus gerardii; chairmaker's rush, Scirpus sp; marsh elder, Iva frutescens; and groundsel bush, Baccharis halimifolia. See Supplemental Information 4.
Enumerated_Domain_Value_Definition_Source:
NYSDEC
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: AA
Enumerated_Domain_Value_Definition:
Adjacent Area. Regulated area. Adjacent area shall mean those land areas not included in the any of the above categories that are generally not inundated by tidal waters and that extend 300 feet landward of the most landward tidal wetlands boundary (150 feet in New York City) or to an elevation of ten feet. See 6NYCRR Part 661.4 for more detail. Note that AA areas are not explicitly labeled on the tidal wetlands inventory maps. Areas of the tidal wetlands inventory maps not labeled with a tidal wetlands category were assigned a category of AA (Adjacent Area) in the digital data by default. Portions of these AA-coded polygons do not meet the legal definition (per 6NYCRR Part 661.4) of an Adjacent Area.
Enumerated_Domain_Value_Definition_Source:
NYSDEC
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: DS
Enumerated_Domain_Value_Definition:
Dredged Spoil. Regulated area. All areas of fill material. Labeled "ds" on 1974 tidal wetlands inventory maps.
Enumerated_Domain_Value_Definition_Source:
NYSDEC
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: HL
Enumerated_Domain_Value_Definition:
Hole Area includes areas that do not contain tidal wetlands or adjacent area. Management area. These areas, which are not covered by 1974 tidal wetlands inventory maps, represent polygons formed in the digital data by surrounding mapped areas. In some cases, areas that might otherwise have been considered HL had tidal wetland polygons added during digitizing to complete wetlands on adjacent mapped areas. See Supplemental Information 3. Note also that this category is not included in the default legend that loads with the theme from the MHDB Data Selector.
Enumerated_Domain_Value_Definition_Source:
NYSDEC
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
Attribute_Definition:
Feature geometry.
Attribute_Definition_Source:
ESRI
Attribute_Domain_Values:
Unrepresentable_Domain:
Coordinates defining the features.
Attribute:
Attribute_Label: AREA
Attribute:
Attribute_Label: LEN
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Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: New York State Department of Environmental Conservation
Contact_Person: Division of Information Services; GIS Unit
Contact_Address:
Address_Type: mailing and physical address
Address:
625 Broadway
Address:
3rd Floor
City: Albany
State_or_Province: NY
Postal_Code: 12233-2750
Country: USA
Contact_Voice_Telephone: (518) 402-9860
Contact_Facsimile_Telephone: 518-402-9031
Contact_Electronic_Mail_Address: enterpriseGIS@gw.dec.state.ny.us
Resource_Description: Tidal Wetlands
Distribution_Liability:
The New York State Department of Environmental Conservation (NYSDEC) provides these geographic data "as is".  NYSDEC makes no guarantee or warranty concerning the accuracy of information contained in the geographic data.  NYSDEC further makes no warranty, either expressed or implied, regarding the condition of the product or its fitness for any particular purpose.  The burden for determining fitness for use lies entirely with the user.  Although these data have been processed successfully on a computer system at NYSDEC, no warranty expressed or implied is made regarding the accuracy or utility of the data on any other system or for general or scientific purposes.  This disclaimer applies both to individual use of the data and aggregate use with other data.  It is strongly recommended that careful attention be paid to the contents of the metadata file associated with these data.  NYSDEC shall not be held liable for improper or incorrect use of the data described and/or contained herein.
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Transfer_Size: 83.275
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Metadata_Reference_Information:
Metadata_Date: 20080331
Metadata_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: New York State Department of Environmental Conservation
Contact_Person: Division of Information Services; GIS Unit
Contact_Address:
Address_Type: mailing and physical address
Address:
625 Broadway
Address:
3rd Floor
City: Albany
State_or_Province: NY
Postal_Code: 12233-2750
Country: USA
Contact_Voice_Telephone: (518) 402-9860
Contact_Facsimile_Telephone: 518-402-9031
Contact_Electronic_Mail_Address: enterpriseGIS@gw.dec.state.ny.us
Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998
Metadata_Time_Convention: local time
Metadata_Extensions:
Online_Linkage: http://www.esri.com/metadata/esriprof80.html
Profile_Name: ESRI Metadata Profile
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