SIR2012_5290_ACAD_Saltmarshpolygons

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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:

U.S. Geological Survey, Maine Water Science Center, Augusta, Maine

Publication_Date: 2012

Title: SIR2012_5290_ACAD_Saltmarshpolygons

Geospatial_Data_Presentation_Form: vector digital data

Publication_Information:

Publication_Place: Augusta, Maine
Publisher: U.S. Geological Survey

Online_Linkage: <http://pubs.usgs.gov/sir/2012/5290/>

Larger_Work_Citation:

Citation_Information:

Originator: Martha G. Nielsen

Originator: Robert W. Dudley

Publication_Date: 2012

Title:

Estimates of Future Inundation of Salt Marshes in Response to Sea Level Rise in and Around Acadia National Park, Maine

Edition: first

Series_Information:

Series_Name: U.S. Geological Survey Scientific Investigations Report
Issue_Identification: SIR 2012-5290

Publication_Information:

Publication_Place: Reston, Virginia
Publisher: U.S. Geological Survey

Other_Citation_Details: 20 p.

Online_Linkage: <http://pubs.usgs.gov/sir/2012/5290/>

Description:

Abstract:: High-quality aerial photography was used to identify candidate salt marshes for study and for delineation of marsh boundaries. Digital color aerial photography from Eastern Penobscot Bay to Schoodic Point consisting of high-resolution 24-bit color Ortho-rectified Digital Images (ODIs) with a pixel resolution of 0.5 meters was used. The photographs were collected by J. W. Sewall Co. during August 2008 at and near low-tide conditions. The digital 2008 Low Tide photos are geo-referenced and suitable for applications requiring a 1:2400 National Map Accuracy Standard (NMAS). The aerial photography was accessed via the Maine Geolibrary Web Mapping Services (<http://www.maine.gov/geolib/wms.htm>, accessed June 25, 2012) that serves the photography as a seamless mosaic. Digital color aerial photography was used to verify and update boundaries identified in the 1997 vegetation survey produced for the Acadia National Park Vegetation Mapping Project, USGS-NPS Vegetation Mapping Program for Mount Desert Island (MDI), Schoodic Peninsula, and Park holdings and easements on outlying islands (Lubinski and others, 2003), and to identify additional significant (> 1 hectare) salt marshes in all the coastal areas from eastern Penobscot Bay to Grand Marsh in Gouldsboro, Maine. Conservation partners, especially the Maine Coast Heritage Trust, were consulted to help identify additional salt marshes to include in the study using various sets of high-resolution aerial photos, taken at different seasons and in different years, provided by several online mapping services (Google MapsTM, BingTM) in addition to the 2008 Low Tide photos. A total of 114 salt marsh areas were identified, many of which exist within in larger groups of salt marsh areas.
Purpose:: These polygons of salt marshes in the study area, in and around Acadia National Park (ANP), Maine, were used as an inventory of the population of salt marshes that are at risk because of expected sea level rise in the coming decades. Each marsh is represented by one or more polygons, and contours representing sea level rise are mapped for each marsh in this inventory > 0.5 ha, unless it was on ANP property (saltmarshes as small as 0.2 ha were analyzed on ANP property.
Supplemental_Information:: Geodatabase product of a U.S. Geological Survey study funded by National Park Service Climate Change Response funding, NPS PMIS # 161531, "Inventory and Protection of Salt Marshes from Risks of Sea Level Rise at Acadia National Park, Maine", 2012.
The database layers are collectively termed "appendix 1" of the USGS SIR report. Database layers included in appendix 1 include: Surveyed benchmarks used in surveying exercise (SIR2012_5290_ACAD_SurveyedBMs); Surveyed marsh points used for quality control for LiDAR data (SIR2012_5290_ACAD_Surveyedmarshpoints); Surveyed elevation reference marks for each surveyed marsh (SIR2012_5290_ACAD_SurveyedERMs); Salt marshes inventoried for this study (SIR2012_5290_ACAD_Saltmarshpolys); Inundation lines for each marsh under 60 cm of sea level rise (SIR2012_5290_ACAD_Inundationlines); Potential barriers to migration of salt marshes (SIR2012_5290_ACAD_Potentialbarriers).
The inundation lines presented are in no way a prediction of whether marsh migration will actually occur, only indications of where land will be inundated and would therefore be available for migration under 60 cm. of sea level rise.

Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 2010
Ending_Date: 2012

Currentness_Reference: Dates represent ground condition at the time of the study.

Status:

Progress: Complete
Maintenance_and_Update_Frequency: No maintenance or update is planned.

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: -68.786498
East_Bounding_Coordinate: -68.002430
North_Bounding_Coordinate: 44.574048
South_Bounding_Coordinate: 44.147056

Keywords:

Theme:

Theme_Keyword_Thesaurus: ISO 19115 Topic Categories
Theme_Keyword: elevation
Theme_Keyword: coasts
Theme_Keyword: environment
Theme_Keyword: geoscientificInformation

Place:

Place_Keyword_Thesaurus: None
Place_Keyword: Maine
Place_Keyword: Mount Desert Island
Place_Keyword: Acadia National Park
Place_Keyword: Penobscot Bay
Place_Keyword: Schoodic Peninsula
Place_Keyword: Swans Island
Place_Keyword: Hancock County
Place_Keyword: Knox County

Access_Constraints: None.

Use_Constraints:

No legal use constraints. Users must assume responsibility in determining the usability of these data for their purposes.

Point_of_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Martha G. Nielsen
Contact_Organization: U.S. Geological Survey, Maine Water Science Office

Contact_Position: Hydrogist

Contact_Address:

Address_Type: mailing and physical
Address: 196 Whitten Rd.
City: Augusta
State_or_Province: Maine
Postal_Code: 04330

Contact_Voice_Telephone: 207-622-8201 x116

Contact_Facsimile_Telephone: 207-622-8204

Contact_Electronic_Mail_Address: mnielsen@usgs.gov

Data_Set_Credit:

Produced in cooperation with the National Park Service. Funding provided by the National Park Service. LiDAR data for the Northeast funded largely by USGS American Reinvestment and Recovery Act funds, and provided by the Maine Office of GIS. Acknowledgment of the U.S. Geological Survey and the National Park Service would be appreciated in products derived from these data.

Native_Data_Set_Environment:

Microsoft Windows 7 Version 6.1 (Build 7601) Service Pack 1; ESRI ArcGIS 10.0.4.4000

Data_Quality_Information:

Attribute_Accuracy:

Attribute_Accuracy_Report: All attributes in the accompanying data layers were checked.

Logical_Consistency_Report: Data are internally consistent.

Completeness_Report:

The saltmarsh polygons in this layer represent the most complete inventory of salt marshes in the study area that is currently (2012) available. The study area encompases the eastern portion of Penobscot Bay, Maine, eastward to Grand Marsh in Gouldsboro, Maine. Small (<0.5 ha) fringing saltmarshes are not well represented, as they are difficult to identify even on highly-accurate digital orthophotos, such as are currently availble from online sources such as Bing(TM).

Positional_Accuracy:

Horizontal_Positional_Accuracy:

Horizontal_Positional_Accuracy_Report:: The locations are based on very-high resolution aerial photographs and topographic data. Most positions are accurate to within 2 meters.

Vertical_Positional_Accuracy:

Vertical_Positional_Accuracy_Report:: Where elevations are included in the datasets, the data are accurate to within +/- 26 cm at a 95-percent confidence level.

Lineage:

Source_Information:

Source_Citation:

Citation_Information:

Originator: Photo Science, Inc.
Publication_Date: Unpublished Material
Title:: State of Maine (Raster DEM): LIDAR for the North East ARRA and LiDAR for the North East Part II. (USGS Contract: G10PC00026, ARRA LIDAR Task Order Numbers) USGS Contract: G10PC00026 Task Order Number: G10PD02143 Task Order Numbers: G10PD01027 (ARRA) and G10PD02143 (non-ARRA)
Geospatial_Data_Presentation_Form: digital raster data
Other_Citation_Details:: The LiDAR data were the primary outside source information for the study. The LiDAR data have a grid cell size of 2 m. Individual data tiles are 751x751 grid cells (1.5 km x 1.5 km) in size. As of October 2012, the LiDAR data are still availably only from state GIS offices. Final publication for public download has not been announced.
The project area required LiDAR to be collected on 2.0 meter GSD or better and processed to meet a bare earth vertical accuracy of 15.0 centimeters RMSEz or better. Raster DEMs were tested by Photo Science for both vertical and horizontal accuracy. All data is seamless from one tile to the next, no gaps or no data areas. The vertical unit of the data file is in decimal meters with 2-decimal point precision. The reported RMSEz was 0.113 m. USGS independently developed a RMSEz for saltmarsh landcover types to be 0.133 m.

Source_Scale_Denominator: 2400

Type_of_Source_Media: External hard drive

Source_Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 20101024
Ending_Date: 20111107

Source_Currentness_Reference: ground condition

Source_Citation_Abbreviation: LiDAR data for the Northeast

Source_Contribution:

The LiDAR data were the primary outside data used in the study. The main use was to create accurate contours showing areas of upland that would be inundated with 60 cm of sea level rise (SLR) adjacent to saltmarshes in and around Acadia National Park. The USGS conducted an independent accuracy assessment of the elevation data to create 95-percent confidence interval contours on the SLR inundation contours. The data tiles were joined together into larger mosaics, and shaded relief images were created to for visualization of the land surface and to identify location/shape of potential barriers to migration of salt marshes.

Source_Information:

Source_Citation:

Citation_Information:

Originator: Maine Office of GIS
Publication_Date: 2009
Title: Low Tide orthophotos 2008.
Online_Linkage:: <http://geolibportal.usm.maine.edu/geonetwork/srv/en/metadata.show?id=502>

Source_Scale_Denominator: 2400

Type_of_Source_Media: unknown

Source_Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 20080821

Source_Currentness_Reference: flight date

Source_Citation_Abbreviation: LT 2008

Source_Contribution:

Low-tide orthophotos from 2008 were used to delineate the polygon boundaries of most of the saltmarsh polygons used in the study, by looking at the visible changes in vegetation. They also were used to help identify the potential barriers to migration and to identify the type of barrier (road or railroad grade).

Source_Information:

Source_Citation:

Citation_Information:

Originator: Maine Office of GIS
Publication_Date: 20090326
Title: Low Tide Central Coast 2001
Edition: First
Geospatial_Data_Presentation_Form: raster digital data
Online_Linkage:: <http://geolibportal.usm.maine.edu/geonetwork/srv/en/metadata.show?id=665>

Source_Scale_Denominator: 2400

Type_of_Source_Media: unknown

Source_Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 20010907
Ending_Date: 20020712

Source_Currentness_Reference: ground condition

Source_Citation_Abbreviation: LT central 2001

Source_Contribution:

The LT central coast 2001 aerial photos were used to help delineate some of the saltmarsh polygon boundaries, particularly on the western-most edge of the study area.

Source_Information:

Source_Citation:

Citation_Information:

Originator: USDA-FSA Aerial Photography Field Office

Publication_Date: 20091009

Title: NAIP 2009

Edition: first

Geospatial_Data_Presentation_Form: raster digital data

Publication_Information:

Publication_Place: Augusta ME
Publisher: Maine Office of Geographic Information Systems (MEGIS)

Other_Citation_Details:

USDA-FSA Aerial Photography Field Office collected the aerial photography data.

Online_Linkage: <http://www.maine.gov/geolib/wms.htm>

Source_Scale_Denominator: 40000

Type_of_Source_Media: unknown

Source_Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 2009

Source_Currentness_Reference: Photography source image date

Source_Citation_Abbreviation: NAIP 2009

Source_Contribution:

The NAIP 2009 data were used to help inventory saltmarshes to use in the study and to initially map polgon boundaries for a few of the saltmarshes.

Source_Information:

Source_Citation:

Citation_Information:

Originator: Maine Office of GIS
Publication_Date: 20091019
Title: Low Tide Down East 2009
Edition: First
Geospatial_Data_Presentation_Form: raster digital data
Online_Linkage:: <http://geolibportal.usm.maine.edu/geonetwork/srv/en/metadata.show?id=666>

Source_Scale_Denominator: 3600

Type_of_Source_Media: unknown

Source_Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 20090825
Ending_Date: 20090921

Source_Currentness_Reference: ground condition

Source_Citation_Abbreviation: LT DE 2009

Source_Contribution:

The LT DE 2009 aerial photos were used to help delineate polygon boundaries for a small number of the saltmarsh polygons used in the study.

Source_Information:

Source_Citation:

Citation_Information:

Originator: Acadia National Park, US National Park Service

Publication_Date: 201201

Title: ParkBoundary_Poly_CARTO_201201

Edition: first

Geospatial_Data_Presentation_Form: vector digital data

Publication_Information:

Publication_Place: Bar Harbor, ME
Publisher: U.S. National Park Service

Other_Citation_Details:

NOTE: for official land status information, please contact the NPS Lands Office. This layer is produced, maintained, and used by Acadia National Park for cartographic purposes because it fits well with other local data. It does not represent an official or surveyed boundary and should not be used for land transaction purposes.

Online_Linkage: <http://irma.nps.gov/App/Reference/Search>

Source_Scale_Denominator: 24000

Type_of_Source_Media: vector digital data

Source_Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 20120101

Source_Currentness_Reference: Data are current in 2012.

Source_Citation_Abbreviation: ACAD_Park_Boundary_2012

Source_Contribution:

The Acadia National Park Boundary polygons were used to determine ownership or association of the salt marsh polygons and the upland inundated areas.

Source_Information:

Source_Citation:

Citation_Information:

Originator: NPS Vegetation Mapping Program Coordinator

Publication_Date: 20031001

Title:

Vegetation Spatial Database Coverage for the Acadia National Park Vegetation Mapping Project

Edition: first

Geospatial_Data_Presentation_Form: vector digital data

Publication_Information:

Publication_Place: La Crosse, Wisconsin
Publisher:: U. S. Geological Survey Upper Midwest Environmental Sciences Center

Other_Citation_Details: Geospatial Dataset-1045111

Online_Linkage: https://irma.nps.gov/App/Reference/Profile/1045111

Source_Scale_Denominator: 15840

Type_of_Source_Media: unknown

Source_Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 19970527
Ending_Date: 19970528

Source_Currentness_Reference: Data are current for 1997 photography date.

Source_Citation_Abbreviation: Acad Veg

Source_Contribution:

Acadia NP vegetation mapping database was used as the first cut for the location of ACAD salt marshes for inclusion in this project. All the salt marshes identified in the Acad Veg shapefile were checked on higher-resolution aerial photos, and a few were not used because they looked unlikely to be actual salt marshes or were mis-coded on the original source.

Source_Information:

Source_Citation:

Citation_Information:

Originator: USGS

Publication_Date: 2010

Title: Bing Bird's eye imagery

Geospatial_Data_Presentation_Form: high-resolution imagery

Publication_Information:

Publication_Place: Redmond, WA
Publisher: Microsoft Corporation

Other_Citation_Details:

Online_Linkage: <http://www.bing.com/maps/>

Source_Scale_Denominator: 1200

Type_of_Source_Media: online digital image

Source_Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 2010

Source_Currentness_Reference: Data are current for 2010 photography

Source_Citation_Abbreviation: Bing maps imagery

Source_Contribution:

The Bing map server was used to fill in detailed aerial photo information in locations where the 2008 Low Tide photos were not available and other Maine aerial photos were not detailed enough to map the boundaries of salt marshes in the study area. Two salt marshes were digitized using the Bing maps imagery.

Process_Step:

Process_Description:: Polygons in the ACAD_Veg datalayer that were identified as salt marshes were copied to a new datalayer. These polygons are tagged as "Acad Veg" in the "Source" attribute.
Source_Used_Citation_Abbreviation: ACAD_Veg
Process_Date: 2010

Process_Step:

Process_Description:: Met with Acadia National Park resource managers and GIS staff to help identify salt marshes that were not in the ACAD_Veg datalayer but were in the larger study area. Included in this meeting were representative from the Maine Coast Heritage Trust who also assisted in locating saltmarshes for the inventory and surveying, and in identifying which salt marshes were protected by MCHT conservation easements.
Process_Date: 20100621

Process_Step:

Process_Description:: Investigated available high-resolution aerial photos (Low Tide 2008, NAIP 2009, LT Central 2001, LT DE 2009, and Bing using ArcGIS to digitize boundaries of salt marshes visible on these photos. Also edited the boundaries of the salt marshes identified in the Acad Veg datalayer, making them more precise. Numbered the salt marsh polygons with sequential numbers as identification as they were digitized (attribute "Marsh_ID" . This process was conducted over several months during the summer of 2010. The attribute "Photo Used" was assigned based on which aerial photo was used for the digitizing.
Process_Date: 2010

Process_Step:

Process_Description:: Selected salt marshes to use for the high-accuracy surveying to check the elevations of the LiDAR data. Some of the salt marshes were visited but not used for the surveying. The marshes that were surveyed are tagged "Surveyed" in the Usage attribute. Marshes that were visited but not surveyed are tagged "visited" in the Usage attribute. This process occurred over several weeks in July, 2010.
Process_Date: 2010

Process_Step:

Process_Description:

Used the LiDAR data to identify the High Marsh Elevation for each of the salt marshes. This was an iterative process. The 2-m DEM was queried at the upper edge of the saltmarsh as visible on the high-resoultion aerial photos. A contour at this elevation was created using the Contour tool in Spatial Analyst. If this contour appeared to correctly circumscribe or outline the edge of the marsh, the "HighMarshEL" attribute was populated with this number (contours were not saved during this step). This process was repeated until a value for HighMarshEl was determined to be the best representation of the upper marsh surface. This process was conducted during 2011.

Process_Date: 2011

Process_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Luke P. Sturtevant
Contact_Organization: U.S. Geological Survey, Maine Water Science Center, Augusta, ME

Contact_Position: Student intern

Contact_Address:

Address_Type: work
Address: 196 Whitten Rd.
City: Augusta
State_or_Province: ME
Postal_Code: 04330
Country: USA

Contact_Voice_Telephone: 207-622-8201 x101

Process_Step:

Process_Description:

The attributes "SLR_est", "SLR_conf_upper" and "SLR_conf_lower" were added. In ArcMap, they were calculated as follows: SLR_est = HighMarshEl + 0.60 m; SLR_conf_upper = SLR_est + .26 m; SLR_conf_lower = SLR_est - 0.26 m.

Process_Date: 2011

Process_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Luke P. Sturtevant
Contact_Organization: U.S. Geological Survey, Maine Water Science Center, Augusta, ME

Contact_Position: Student intern

Contact_Address:

Address_Type: work
Address: 196 Whitten Rd.
City: Augusta
State_or_Province: ME
Postal_Code: 04330
Country: USA

Contact_Voice_Telephone: 207-622-8201 x101

Process_Step:

Process_Description:: Calculated area of each salt marsh, in hectares, using ArcGIS Calcualte geometry command (attribute "Area_ha").
Process_Date: 2012

Process_Step:

Process_Description:: Populated "Ownership" and "Ownership2" attributes (second used if the salt marsh polyon crossed ownership boundaries). Used the Acadia NP boundary datalayer of 2012 to assign ownership of salt marshes that fall within the boundary of ANP. The ANP salt marsh polyons were either on fee owned land, and ANP conservation easement, or a parcel to be acquired. The Maine Coast Heritage Trust polygons were checked. The remained of the saltmarsh polygons were assumed to be privately held.
Source_Used_Citation_Abbreviation: ACAD_Park_Boundary_2012
Process_Date: 2012

Spatial_Data_Organization_Information:

Direct_Spatial_Reference_Method: Vector

Point_and_Vector_Object_Information:

SDTS_Terms_Description:

SDTS_Point_and_Vector_Object_Type: GT-polygon composed of chains
Point_and_Vector_Object_Count: 114

Spatial_Reference_Information:

Horizontal_Coordinate_System_Definition:

Planar:

Map_Projection:

Map_Projection_Name: NAD_1983_UTM_Zone_19N

Transverse_Mercator:

Scale_Factor_at_Central_Meridian: 0.9996
Longitude_of_Central_Meridian: -69.0
Latitude_of_Projection_Origin: 0.0
False_Easting: 500000.0
False_Northing: 0.0

Planar_Coordinate_Information:

Planar_Coordinate_Encoding_Method: coordinate pair

Coordinate_Representation:

Abscissa_Resolution: 0.0001
Ordinate_Resolution: 0.0001

Planar_Distance_Units: meters

Geodetic_Model:

Horizontal_Datum_Name: D North American 1983
Ellipsoid_Name: GRS 1980
Semi-major_Axis: 6378137.0
Denominator_of_Flattening_Ratio: 298.257222101

Vertical_Coordinate_System_Definition:

Altitude_System_Definition:

Altitude_Datum_Name: North_American_Vertical_Datum_1988
Altitude_Resolution: 1.0
Altitude_Distance_Units: Meters
Altitude_Encoding_Method: Attribute values

Entity_and_Attribute_Information:

Detailed_Description:

Entity_Type:

Entity_Type_Label: SIR2012_5290_ACAD_Saltmarshpolygons
Entity_Type_Definition: Polygon feature class
Entity_Type_Definition_Source: ESRI

Attribute:

Attribute_Label: OBJECTID

Attribute_Definition: Internal feature number

Attribute_Definition_Source: ESRI

Attribute_Domain_Values:

Unrepresentable_Domain: Sequential 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: SHAPE_Length

Attribute_Definition: Length of features in internal units (meters)

Attribute_Definition_Source: ESRI

Attribute_Domain_Values:

Unrepresentable_Domain: Positive real numbers that are automatically generated

Attribute:

Attribute_Label: SHAPE_Area

Attribute_Definition: Area of features in internal units (square meters)

Attribute_Definition_Source: ESRI

Attribute_Domain_Values:

Unrepresentable_Domain: Positive real numbers that are automatically generated

Attribute:

Attribute_Label: Source

Attribute_Definition: Origin of saltmarsh polygon features

Attribute_Definition_Source: U.S. Geological Survey

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Acad Veg
Enumerated_Domain_Value_Definition:: Saltmarsh was originally identified in the Acad Veg datalayer (see source citations)
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Digitized 2011
Enumerated_Domain_Value_Definition: Polygon was digitized from an aerial photo in 2011.
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Digitized 2012
Enumerated_Domain_Value_Definition: Polygon was digitized from an aerial photo in 2012.
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey

Attribute:

Attribute_Label: PhotoUsed

Attribute_Definition:

Aerial photo that was used to digitize or edit the saltmarsh polygon boundary (See Source Citations)

Attribute_Definition_Source: U.S. Geological Survey

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: LT2008
Enumerated_Domain_Value_Definition: Low Tide 2008 orthophotos
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Bing
Enumerated_Domain_Value_Definition: Bing(TM) maps aerial photos
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: LT central 2001
Enumerated_Domain_Value_Definition: Low Tide Central Coast 2001
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: LT DE 2009
Enumerated_Domain_Value_Definition: Low Tide Down East 2009
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: NAIP 2009
Enumerated_Domain_Value_Definition: USDA-FSA Aerial Photography NAIP 2009
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey

Attribute:

Attribute_Label: Usage_

Attribute_Definition:

Attribute indicating how the saltmarsh polygon was used in the study.

Attribute_Definition_Source: U.S. Geological Survey

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Inventory only
Enumerated_Domain_Value_Definition:: The saltmarsh polygon was included in the inventory, but was not surveyed, visited, or used to derive sea level rise lines. This value was reserved for a small number of very small (< 0.5 ha) salt marshes on private property.
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Inventory and SLR
Enumerated_Domain_Value_Definition:: Saltmarsh was inventoried and inundation lines for estimated sea level rise were created. Was not surveyed or visited.
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Surveyed
Enumerated_Domain_Value_Definition:: Saltmarsh was surveyed IN ADDITION to being included in the inventory and inundation lines for sea level rise analysis.
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: visited
Enumerated_Domain_Value_Definition:: Saltmarsh was visited for consideration in the surveying phase, in addition to being included in the inventory and inundation lines for sea level rise analysis.
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey

Attribute:

Attribute_Label: Ownership

Attribute_Definition: Primary landowner and/or status as part of Acadia National Park

Attribute_Definition_Source: U.S. Geological Survey

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Private
Enumerated_Domain_Value_Definition:: Saltmarsh is privately owned and has no affiliation with Acadia National Park
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: State of Maine
Enumerated_Domain_Value_Definition:: Owned in part by the State of Maine (Holbrooke Island Sanctuary).
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: The Nature Conservancy
Enumerated_Domain_Value_Definition: Property is owned by The Nature Conservancy
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: ANP - Conserv. easement
Enumerated_Domain_Value_Definition:: Property is under a conservation easement with Acadia National Park, as defined in the "ParkBoundary_Poly_CARTO_201201" shapefile.
Enumerated_Domain_Value_Definition_Source: The National Park Service

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: ANP - Fee owned land
Enumerated_Domain_Value_Definition:: Property is owned directly by Acadia National Park, as defined in the "ParkBoundary_Poly_CARTO_201201" shapefile.
Enumerated_Domain_Value_Definition_Source: National Park Service

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: ANP - parcel to be acquired
Enumerated_Domain_Value_Definition:: Property is targeted for future acquisition by Acadia National Park, as defined in the "ParkBoundary_Poly_CARTO_201201" shapefile.
Enumerated_Domain_Value_Definition_Source: National Park Service

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Maine Coast Heritage Trust
Enumerated_Domain_Value_Definition:: Parcel is under conservation easement or owned by the Maine Coast Heritage Trust.
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey

Attribute:

Attribute_Label: HighMarshEl

Attribute_Definition:

Elevation that best describes the highest part of the saltmarsh, as it transitions into the adjacent upland or freshwater marsh. Elevations were picked off the LiDAR 2-m digital elevation model data. Data are considered accurate to within +/- 26 cm.

Attribute_Definition_Source: U.S. Geological Survey

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 1.6
Range_Domain_Maximum: 3.0
Attribute_Units_of_Measure: Meters above NAVD88.

Attribute:

Attribute_Label: SLR_est

Attribute_Definition:

Estimated level of the top of the marsh surface plus 60 centimeters, which was used as the estimated amount of sea level rise for this study. Data are considered accurate to within +/- 26 cm at a 95-percent confidence interval.

Attribute_Definition_Source: U.S. Geological Survey

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 2.2
Range_Domain_Maximum: 3.6
Attribute_Units_of_Measure: Meters above NAVD88.

Attribute:

Attribute_Label: SLR_conf_upper

Attribute_Definition:

Upper 95-percent confidence interval on the SLR_est value, based on the independent accuracy assessment of the LiDAR data. (SLR_est + 26 cm)

Attribute_Definition_Source: U.S. Geological Survey

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 2.46
Range_Domain_Maximum: 3.86
Attribute_Units_of_Measure: Meters above NAVD88.

Attribute:

Attribute_Label: SLR_conf_lower

Attribute_Definition:

Lower 95-percent confidence interval on the SLR_est value, based on the independent accuracy assessment of the LiDAR data. (SLR_est - 26 cm)

Attribute_Definition_Source: U.S. Geological Survey

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 1.94
Range_Domain_Maximum: 3.34
Attribute_Units_of_Measure: Meters above NAVD88.

Attribute:

Attribute_Label: Area_ha

Attribute_Definition: Area of saltmarsh, in hectares.

Attribute_Definition_Source: U.S. Geological Survey

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0.145
Range_Domain_Maximum: 52.1
Attribute_Units_of_Measure: hectares

Attribute:

Attribute_Label: Ownership2

Attribute_Definition:

Secondary ownership of land covered by saltmarsh, if the saltmarsh crosses property boundaries.

Attribute_Definition_Source: U.S. Geological Survey

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Private
Enumerated_Domain_Value_Definition:: Saltmarsh is privately owned and has no affiliation with Acadia National Park
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: ANP - Fee owned land
Enumerated_Domain_Value_Definition:: Property is owned directly by Acadia National Park, as defined in the "ParkBoundary_Poly_CARTO_201201" shapefile.
Enumerated_Domain_Value_Definition_Source: National Park Service

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: ANP - parcel to be acquired
Enumerated_Domain_Value_Definition:: Property is targeted for future acquisition by Acadia National Park, as defined in the "ParkBoundary_Poly_CARTO_201201" shapefile.
Enumerated_Domain_Value_Definition_Source: National Park Service

Attribute:

Attribute_Label: Marsh_ID

Attribute_Definition:

Sequential identification number of the marsh, assigned during the ditigization and inventory exercise. Some marshes include more than one polygon, if they are physically proximal to one another, are located in the same embayment, and are separated by a channel.

Attribute_Definition_Source: U.S. Geological Survey

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 2
Range_Domain_Maximum: 126

Distribution_Information:

Distributor:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: U.S. Geological Survey

Contact_Position: Ask USGS -- Water Webserver Team

Contact_Address:

Address_Type: mailing address
Address: 445 National Center
City: Reston
State_or_Province: VA
Postal_Code: 20192
Country: USA

Contact_Voice_Telephone: 1-888-275-8747 (1-888-ASK-USGS)

Contact_Electronic_Mail_Address: <http://water.usgs.gov/user_feedback_form.html>

Resource_Description: Downloadable Data

Distribution_Liability:

Although these data have been used by the U.S. Geological Survey, U.S. Department of the Interior, no warranty expressed or implied is made by the U.S. Geological Survey as to the accuracy of the data. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the U.S. Geological Survey in the use of these data, software, or related materials. The use of firm, trade, or brand names in this report is for identification purposes only and does not constitute endorsement by the U.S. Geological Survey. The names mentioned in this document may be trademarks or registered trademarks of their respective trademark owners.

Standard_Order_Process:

Digital_Form:

Digital_Transfer_Information:

Format_Name: ESRI File Geodatabase datalayer
Format_Information_Content: Compressed folder
File_Decompression_Technique: Winzip
Transfer_Size: 31000

Digital_Transfer_Option:

Online_Option:

Computer_Contact_Information:

Network_Address:

Network_Resource_Name:: <http://pubs.usgs.gov/sir/2012/5290/data/SIR2012_5290_ACAD_SaltmarshSLRLayers.gdb.zip>

Access_Instructions:

Compressed folder of geodatabase may be downloaded at <http://pubs.usgs.gov/sir/2012/5290> by following the instructions. Metadata are available for download separately, but also are included in the geodatabase folder. The geodatabase includes all the datalayers together for this report; they are not available separately.

Fees: None. This dataset is provided by USGS as a public service.

Metadata_Reference_Information:

Metadata_Date: 20121220

Metadata_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization:: U.S. Geological Survey, New England Water Science Center, Maine Office

Contact_Person: Martha Nielsen / Robert Dudley

Contact_Position: Hydrologist

Contact_Address:

Address_Type: mailing address
Address: 196 Whitten Rd.
City: Augusta
State_or_Province: ME
Postal_Code: 04330
Country: USA

Contact_Voice_Telephone: 207-622-8201

Contact_Electronic_Mail_Address: mnielsen@usgs.gov

Contact_Electronic_Mail_Address: rwdudley@usgs.gov

Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata

Metadata_Standard_Version: FGDC-STD-001-1998

Generated by mp version 2.9.20 on Wed Mar 13 14:01:57 2013