Advanced Identification of Wetland Restoration Sites (phase 2)

Metadata also available as

Metadata:


Identification_Information:

Citation:
Citation_Information:
Originator:
Comprehensive Coastal Inventory, Virginia Institute of Marine Science
Publication_Date: 2003
Title: Advanced Identification of Wetland Restoration Sites (phase 2)
Geospatial_Data_Presentation_Form: vector digital data
Publication_Information:
Publication_Place: Gloucester Point, Virginia
Publisher: Virginia Institute of Marine Science
Online_Linkage:
(<URL:http://your.server.org/pathname/filename>)

Description:

Abstract:
The motives for restoring wetlands are variable. Environmental initiatives funded through government and non-profit organizations steer many activities seeking to restore habitat function. Local governments and developers restore wetlands for storm water treatment and water quality benefits. Developers and landowners initiate wetlands restoration as a form of mitigation for wetland loss.

All wetland restoration projects must first identify a location on the landscape appropriate for the activity. Although each project is unique, certain basic criteria must be considered. These basic criteria are the premise upon which the targeting protocol has been developed. A simple appraisal system classifies an area as a potential, moderate, good, high, or excellent site for restoration.

Purpose:
To assist in the selection of future wetlands restoration sites.

Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 2001
Currentness_Reference: source of data

Status:
Progress: Complete
Maintenance_and_Update_Frequency: None Planned

Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -76.94568794
East_Bounding_Coordinate: -75.86718321
North_Bounding_Coordinate: 37.16197116
South_Bounding_Coordinate: 36.53769664

Keywords:
Theme:
Theme_Keyword_Thesaurus: none
Theme_Keyword: hydric soils
Theme_Keyword: wetlands
Theme_Keyword: restoration sites
Place:
Place_Keyword_Thesaurus: none
Place_Keyword: Southeastern Virginia
Place_Keyword: Chesapeake
Place_Keyword: Isle of Wight
Place_Keyword: Norfolk
Place_Keyword: Portsmouth
Place_Keyword: Suffolk
Place_Keyword: Virginia Beach

Access_Constraints: none

Use_Constraints:
These data have not been surveyed to property boundaries. Use of this data should not replace the need for site visitation and inspection.

Point_of_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Marcia Berman
Contact_Organization: Virginia Institute of Marine Science (VIMS)
Contact_Position: Director Comprehensive Coastal Inventory Program
Contact_Address:
Address_Type: mailing address
Address: P.O. Box 1346
City: Gloucester Point
State_or_Province: Virginia
Postal_Code: 23062
Country: USA
Contact_Voice_Telephone: (804) 684-7188
Contact_Facsimile_Telephone: (804) 684-7179
Contact_Electronic_Mail_Address: marcia@vims.edu

Native_Data_Set_Environment:
SunOS, 5.7, sun4u UNIX ARC/INFO version 7.2.1


Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
Assumptions were made that all data used for producing this coverage were accurate. The protocol results were evaluated using high resolution 1994 digital orthophotography. Potential restoration sites were verified for land use, hydrology, and wetlands. Soils could not be verified using this technique. The results indicated that land use in this developing region of Virginia has changed to such a degree that land use coverage used did not always yield accurate land cover types. In addition, there were obvious misclassification errors in the land use coverage. Therefore a number of the areas ranked as "good" or "high" were already developed. Rerunning the analysis using a 1997 classified dataset resulted in an improvement of the model. Unfortunately, the new land use data set covers only half the study area, and therefore is not used in the final analysis.

Logical_Consistency_Report:
Polygon topology present. Polygons were checked for area and stream connectivity requirements.

Completeness_Report:
All potential wetland restoration sites with a minimum size of 1 acre within the chosen study area where selected and run through the protocol.

Lineage:
Source_Information:
Source_Citation:
Citation_Information:
Originator:
U.S. Fish & Wildlife Service, National Wetlands Inventory
Publication_Date: 198110 to present
Title: National Wetlands Inventory by 7.5' Quad
Geospatial_Data_Presentation_Form: vector digital data
Publication_Information:
Publication_Place: St.Petersburg, Florida
Publisher: U.S. Fish & Wildlife Service
Source_Scale_Denominator: 24000
Type_of_Source_Media: mylar separate
Source_Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 1981
Ending_Date: 1999
Source_Currentness_Reference: date of map
Source_Citation_Abbreviation: NWI
Source_Contribution: provided location of wetlands

Source_Information:
Source_Citation:
Citation_Information:
Originator: U.S. Geological Survey (USGS)
Publication_Date: 19990527
Title: Virginia Land Cover Data Set
Geospatial_Data_Presentation_Form: raster digital data
Publication_Information:
Publication_Place: Sioux Falls, SD USA
Publisher: U.S. Geological Survey
Type_of_Source_Media: raster digital data
Source_Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 1986
Ending_Date: 1993
Source_Currentness_Reference: ground condition
Source_Citation_Abbreviation: LU
Source_Contribution: provided agricultural and forested land use.

Source_Information:
Source_Citation:
Citation_Information:
Originator: USDA - Natural Resource Conservation Service (NRCS)
Publication_Date: 1997
Title: Soil Survey Geographic (SSURGO) Data Base by County
Geospatial_Data_Presentation_Form: vector digital data
Source_Scale_Denominator: 24000
Type_of_Source_Media: vector digital data
Source_Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 1997
Ending_Date: 1999
Source_Currentness_Reference: date of map
Source_Citation_Abbreviation: SSURGO
Source_Contribution: hydric soil polygons

Source_Information:
Source_Citation:
Citation_Information:
Originator: Virginia Tech
Publication_Date: 1980s
Title: VirGIS Soils Data for the City of Chesapeake
Geospatial_Data_Presentation_Form: raster digital data
Type_of_Source_Media: raster digital data
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 1980
Source_Currentness_Reference: date of map
Source_Citation_Abbreviation: VirGIS
Source_Contribution: hydric soil polygons for Chesapeake

Source_Information:
Source_Citation:
Citation_Information:
Originator:
U.S. Department of Commerce, Bureau of the Census, Geography Division
Publication_Date: 2001
Title: TIGER/Line Files, Redistricting Census 2000
Geospatial_Data_Presentation_Form: vector digital data
Type_of_Source_Media: vector digital data
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 2000
Source_Currentness_Reference: 2000
Source_Citation_Abbreviation: TGR
Source_Contribution: roads, rails, and streams

Source_Information:
Source_Citation:
Citation_Information:
Originator:
National Mapping Division of the United States Geological Survey (USGS)
Publication_Date: 2000
Title: Digital Line Graphs (DLG's)
Geospatial_Data_Presentation_Form: vector digital data
Source_Scale_Denominator: 24000
Type_of_Source_Media: vector digital data
Source_Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 1993
Ending_Date: 2000
Source_Currentness_Reference: date of map
Source_Citation_Abbreviation: DLG
Source_Contribution: hydrography

Source_Information:
Source_Citation:
Citation_Information:
Originator: Virginia Dept of Conservation and Recreation - DSWC
Publication_Date: 19951101
Title: Virginia's 14 digit hydrologic unit boundaries.
Geospatial_Data_Presentation_Form: vector digital data
Publication_Information:
Publication_Place: Richmond, Virginia USA
Publisher: Virginia DCR-DSWC
Type_of_Source_Media: vector digital data
Source_Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 19950601
Ending_Date: Present
Source_Currentness_Reference: Publication date of sources.
Source_Citation_Abbreviation: HU
Source_Contribution: Hydrologic unit

Process_Step:
Process_Description:
Using ArcInfo on a UNIX machine, SSURGO and VIRGIS soils data were combined and then polygons were dissolved on the hydric soils code. Hydric soils polygons were put into a new coverage.
Process_Date: 2001

Process_Step:
Process_Description:
Roads(TGR), rails(TGR), and streams were buffered 35 m. The roads buffer and the rails buffer were unioned and dissolved to form a transportation corridor buffer coverage.
Process_Date: 2002

Process_Step:
Process_Description:
The transportation buffer was unioned with the land use (LU). The resulting coverage was then unioned with the hydric soils coverage. Hydric soil polygons greater than 0.25 acre, containing agricultural or forested land use, and located outside of the transportation buffer were selected and put into a new coverage.
Process_Date: 2002

Process_Step:
Process_Description:
Hydrography DLG's covering the study area were downloaded from the USGS web site. They were appended together and used to determine stream connectivity within selected hydric soil polygons.
Process_Date: 2001

Process_Step:
Process_Description:
Vegetated wetland arcs and polygons from NWI were unioned with the selected hydric soil polygons from the above steps. Only upland hydric soil polygons that were adjacent to or contiguous with vegetated wetlands were selected.
Process_Date: 2002

Process_Step:
Process_Description:
Stream connectivity was rechecked in the new upland hydric soil forest and agriculture polygons. Potential restoration sites were coded using the following criteria: Potential = hydric soil, land use forest or agriculture, outside of transportation buffer, area greater than or equal to 1 acre; Moderate = potential criteria plus stream connectivity; Good = moderate criteria plus forested land use; High = moderate criteria plus agricultural land use.
Process_Date: 2002

Process_Step:
Process_Description:
Good and high ranking sites were selected from the above coverage and put into a new coverage. Polygons found to be adjacent to conservation lands were tagged. Restoration rankings were increased for tagged polygons (i.e. hydric soil forest polygons adjacent to a conservation area went from 'moderate' to 'high', whereas an agricultural hydric soil polygon adjacent to a conservation land went from 'high' to 'excellent'. The two coverages mentioned in this step were recombined to create ADVID_RSITES2.
Process_Date: 2002

Process_Step:
Process_Description:
Items were added to ADVID_RSITES2 coverage to hold information on hydrologic units (HU), counties, adjacent wetlands, and stream corridors.
Process_Date: 200303


Spatial_Data_Organization_Information:
Direct_Spatial_Reference_Method: Vector
Point_and_Vector_Object_Information:
SDTS_Terms_Description:
SDTS_Point_and_Vector_Object_Type: Point
Point_and_Vector_Object_Count: 113632
SDTS_Terms_Description:
SDTS_Point_and_Vector_Object_Type: String
Point_and_Vector_Object_Count: 328364
SDTS_Terms_Description:
SDTS_Point_and_Vector_Object_Type: GT-polygon composed of chains
Point_and_Vector_Object_Count: 113633


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: 0.0
False_Easting: 500000.00
False_Northing: 0.0
Planar_Coordinate_Information:
Planar_Coordinate_Encoding_Method: coordinate pair
Coordinate_Representation:
Abscissa_Resolution: 0.01
Ordinate_Resolution: 0.01
Planar_Distance_Units: Meters
Geodetic_Model:
Horizontal_Datum_Name: North American Datum of 1983
Ellipsoid_Name: GRS1980
Semi-major_Axis: 6378206.4
Denominator_of_Flattening_Ratio: 294.98


Entity_and_Attribute_Information:
Overview_Description:
Entity_and_Attribute_Overview:
Below is a listing of attributes found within this coverage. The first four items are ArcInfo generated. ID_NUMBER contains a unique identification number for each polygon. ATTRIBUTE and WETLAND are from the NWI coverage. ATTRIBUTE contains the coding for the NWI wetlands classification. WETLAND can be 'U' for upland, 'VW' for vegetated wetland, or 'NW' for nonvegetated wetland. HYDRIC contains the code 'Y' if the polygon has hydric soils. TOTALACRES contains the area in acres of the original hydric soil polygons. TRINSIDE holds the buffer codes from the transportation buffer coverage (1 = outside buffer, 100 = inside buffer). LU contains the land use. ACRES contains the original acreage of the land use coverage. LUACRES holds the acres of each polygon after the hydric soils, transportation buffer and land use coverages have been unioned. STREAM_CONNECT contains a 'Y' if that polygon has stream connectivity. COINCIDENTA is 'Y' if polygon passes through a vegetated wetland arc. COINCIDENTP is 'Y' if polygon passes through a vegetated wetland polygon. COINCIDENT is 'Y' if either of the preceding items is 'Y'. ADJACENTWET is 'Y' if polygon is next to a vegetated wetland. CONNECT contains three attributes; 'ac' = polygon is adjacent to wetland and has stream connectivity, 'ic' = polygon has stream connectivity but is isolated from a wetland, and 'cc' = polygon has stream connectivity and is coincident with a wetland. COINOUT has a value of 'Y' if the polygon is the upland portion of a hydric soil polygon that is coincident to wetland. ACRESUPLAND contains the acreage of the upland forest or agriculture hydric soil polygons. STREAM_CONNECT2 is 'Y' if the upland hydric soil polygon has a stream passing through it. RESTORATION contains the ranking of potential wetland restoration sites: 'Potential' = hydric soil, land use forest or agriculture, outside of transportation buffer, area greater than or equal to 1 acre; 'Moderate' = potential criteria plus stream connectivity; 'Good' = moderate criteria plus forested land use; 'High' = moderate criteria plus agricultural land use, or forested polygons with a 'good' ranking that are adjacent to conservation sites. ; 'Excellent' = agricultural polygons with a 'high' ranking that are adjacent to conservation sites. CONSERV_LANDS is 'Y' if the polygon is adjacent to or overlaps a conservation site. The following items occur three to seven times each because wetlands can overlap political boundaries, or have multiple wetland neighbors. COUNTY1, COUNTY2, COUNTY3, AND COUNTY4 contain County names. HU1, HU2, HU3, HU4 contain the names of hydrologic units. STREAM_CORRIDOR1 - STREAM_CORRIDOR4 contain stream corridor names. WETCODE1 - WETCODE7 hold the system, subsystem, and class codes for adjacent NWI wetlands.

ADVID_RSITES2.TAB is a frequency table showing the area of the five restoration categories.


ADVID_RSITES2.PAT:

COLUMN   ITEM NAME        WIDTH OUTPUT  TYPE N.DEC  ALTERNATE NAME
    1  AREA                   8    18     F      5
    9  PERIMETER              8    18     F      5
   17  ADVID_RSITES2#         4     5     B      -
   21  ADVID_RSITES2-ID       4     5     B      -
   25  ID_NUMBER              4     8     B      -
   29  ATTRIBUTE             20    20     C      -
   49  WETLAND                2     2     C      -
   51  HYDRIC                 1     1     C      -
   52  TOTALACRES             8    18     F      6
   60  TRINSIDE               4     5     B      -
   64  LU                     8     8     C      -
   72  ACRES                  8    18     F      6
   80  LUACRES                8    18     F      6
   88  STREAM_CONNECT         2     2     C      -
   90  COINCIDENTA            2     2     C      -
   92  COINCIDENTP            2     2     C      -
   94  COINCIDENT             2     2     C      -
   96  ADJACENTWET            2     2     C      -
   98  CONNECT                2     2     C      -
  100  COINOUT                2     2     C      -
  102  ACRESUPLAND            8    18     F      6
  110  STREAM_CONNECT2        2     2     C      -
  112  RESTORATION           10    10     C      -
  122  CONSERV_LANDS          2     2     C      -
  124  COUNTY1               20    20     C      -
  144  COUNTY2               20    20     C      -
  164  COUNTY3               20    20     C      -
  184  HU1                    3     3     C      -
  187  HU2                    3     3     C      -
  190  HU3                    3     3     C      -
  193  HU4                    3     3     C      -
  196  COUNTY4               20    20     C      -
  216  STREAM_CORRIDOR1      25    25     C      -
  241  STREAM_CORRIDOR2      25    25     C      -
  266  STREAM_CORRIDOR3      25    25     C      -
  291  STREAM_CORRIDOR4      25    25     C      -
  316  WETCODE1               5     5     C      -
  321  WETCODE2               5     5     C      -
  326  WETCODE3               5     5     C      -
  331  WETCODE4               5     5     C      -
  336  WETCODE5               5     5     C      -
  341  WETCODE6               5     5     C      -
  346  WETCODE7               5     5     C      -


ADVID_RSITES2.TAB:

COLUMN   ITEM NAME        WIDTH OUTPUT  TYPE N.DEC  ALTERNATE NAME
    1  CASE#                  4     5     B      -
    5  FREQUENCY              4     5     B      -
    9  RESTORATION           10    10     C      -
   19  AREA                   8    18     F      6
   27  ACRES                  8    18     F      2


Entity_and_Attribute_Detail_Citation: none


Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: Virginia Institute of Marine Science (VIMS)
Contact_Position: Director Comprehensive Coastal Inventory Program
Contact_Address:
Address_Type: mailing address
Address: P.O. Box 1346
City: Gloucester Point
State_or_Province: Virginia
Postal_Code: 23062
Country: USA
Contact_Voice_Telephone: (804) 684-7188
Contact_Instructions: Contact via email
Contact_Electronic_Mail_Address: marcia@vims.edu

Distribution_Liability:

The Comprehensive Coastal Inventory Program (CCI) at VIMS performs a service by distributing data generated by either CCI or public agencies which offer data without restriction or charge. CCI assumes no responsibility for data accuracy or precision, metadata completeness or correctness for digital information. CCI assumes no liability for misuse of any data which may arise as a result of any alteration, conversion, or combination with other data sources. As well, the timeliness and scale of these products must be considered when evaluating appropriate use.


Metadata_Reference_Information:
Metadata_Date: 20030909
Metadata_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: Virginia Institute of Marine Science (VIMS)
Contact_Person: Tamia Rudnicky
Contact_Position: GIS Programmer/Analyst
Contact_Address:
Address_Type: mailing address
Address: P.O. Box 1346
City: Gloucester Point
State_or_Province: Virginia
Postal_Code: 23062
Country: USA
Contact_Voice_Telephone: (804) 684-7181
Contact_Facsimile_Telephone: (804) 684-7179
Contact_Electronic_Mail_Address: tamia@vims.edu
Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998
Metadata_Access_Constraints: none
Metadata_Use_Constraints: none

Generated by mp version 2.5.4 on Tue Sep 9 15:54:37 2003