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Sea Level Affecting Marshes Model (SLAMM) for New Hampshire

Sea Level Affecting Marshes Model (SLAMM) for New Hampshire

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Metadata:


Identification_Information:

Citation:
Citation_Information:
Originator: New Hampshire Fish and Game Department
Publication_Date: 20140818
Title: Sea Level Affecting Marshes Model (SLAMM) for New Hampshire
Geospatial_Data_Presentation_Form: raster and vector digital data
Publication_Information:
Publication_Place: Concord, New Hampshire
Publisher: New Hampshire Fish and Game Department
Other_Citation_Details: None
Online_Linkage: <URL:http://www.granit.unh.edu/data/search?dset=slamm2014/nh>
Larger_Work_Citation:
Citation_Information:
Originator: NHDES Coastal Program
Publication_Date: 20140818
Title: Resilient New Hampshire Coasts Project
Online_Linkage:
<URL:http://des.nh.gov/organization/divisions/water/wmb/coastal/resilient-coast.htm>
Description:
Abstract:
Tidal marshes are susceptible to climate change, especially sea level rise (SLR). Changes in tidal marsh area and habitat type may be estimated using the SLAMM model. This simulates the dominant processes involved in wetland conversion and shoreline modification under different scenarios of sea level rise: inundation (based on elevation and slope), erosion (based on threshold of maximum fetch and proximity to tidal water), accretion (sea level rise is offset by sedimentation and vertical accretion), soil saturation (sea level rise affects the fresh water table) and barrier island overwash (for islands under 500m width). SLAMM tracks the rise of water levels and the salt boundary in 25-year time steps and predicts changes to wetland habitat based on known relationships between wetland types and tide ranges. The model was run using "protection off", thereby depicting the potential for marsh migration into upland areas despite limitations of current land use or development. The connectivity sub-model was run for both options, "on" requires a low-elevation pathway to saline water, and "off" does not require a flow pathway to saline water.

SLR1M_2025_C: Potential change in salt marsh at 1.2 meter SLR for year 2025 (intermediate-high emissions scenario), with connectivity on SLR1M_2100_C: Potential change in salt marsh at 1.2 meter SLR for year 2100 (intermediate-high emissions scenario), with connectivity on SLR2M_2025_C: Potential change in salt marsh at 2 meter SLR for year 2025 (high emissions scenario), with connectivity on SLR2M_2100_C: Potential change in salt marsh at 2 meter SLR for year 2100 (high emissions scenario), with connectivity on

Purpose:
The data are intended to guide conservation strategies that will protect the coastal wetland areas that are likely to provide high quality wildlife habitat and persist for the longest duration.
Supplemental_Information:
The project was funded in part by the National Oceanic and Atmospheric Administration as a Project of Special Merit and Great Bay National Estuarine Research Reserve operating award.

Project work began in early 2014 and is slated to be complete in spring 2015. The New Hampshire Fish and Game Department will make the full suite of data layers available upon request. Please refer to the SLAMM_Supplemental.pdf document that accompanies these data for additional information.

Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20110506
Ending_Date: 20140818
Currentness_Reference: Ground conditions
Status:
Progress: Complete
Maintenance_and_Update_Frequency: As needed
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -70.977939
East_Bounding_Coordinate: -70.695230
North_Bounding_Coordinate: 43.232083
South_Bounding_Coordinate: 42.851313
Keywords:
Theme:
Theme_Keyword_Thesaurus: None
Theme_Keyword: habitat
Theme_Keyword: wildlife
Theme_Keyword: wetland
Theme_Keyword: salt marsh
Theme_Keyword: sea level rise
Theme_Keyword: slamm
Place:
Place_Keyword_Thesaurus: None
Place_Keyword: United States
Place_Keyword: Northeast
Place_Keyword: New England
Place_Keyword: New Hampshire
Place_Keyword: NH
Access_Constraints: None
Use_Constraints:
The data are intended for planning purposes only and are not for legal or engineering use.
Point_of_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: NH Fish and Game Department
Contact_Person: Catherine Callahan
Contact_Position: GIS Coordinator
Contact_Address:
Address_Type: mailing and physical address
Address: 11 Hazen Dr
City: Concord
State_or_Province: NH
Postal_Code: 03301
Country: US
Contact_Voice_Telephone: 603-271-3014
Contact_Facsimile_Telephone: 603-778-7398
Contact_Electronic_Mail_Address: catherine.callahan@wildlife.nh.gov
Hours_of_Service: 8:00AM-4:30PM, EST
Data_Set_Credit: NH Fish and Game Department
Native_Data_Set_Environment: ESRI grid

Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
Attributes were generated during the geoprocessing and verified by logical and visual validation.
Logical_Consistency_Report:
The data layers were evaluated to ensure logical habitat classification.
Completeness_Report: The data are complete for the region.
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report:
The data were derived in part from the coastal New Hampshire LiDAR collection (2011), with a 2m GSD (or 2-meter nominal post spacing).
Vertical_Positional_Accuracy:
Vertical_Positional_Accuracy_Report:
Vertical accuracy of the coastal LiDAR is 15.0 centimeters RMSEz or better.
Lineage:
Source_Information:
Source_Citation:
Citation_Information:
Originator: Photo Science, Inc.
Publication_Date: 2011
Title: Coastal New Hampshire 2011 LiDAR collection
Type_of_Source_Media: None
Source_Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20110506
Ending_Date: 20110630
Source_Currentness_Reference: Ground_Condition
Source_Citation_Abbreviation: LIDAR
Source_Contribution: Two-meter LiDAR DEM
Source_Information:
Source_Citation:
Citation_Information:
Originator: US Fish and Wildlife Service
Publication_Date: 20140513
Title: NH_Coastal_Updated_Wetlands
Type_of_Source_Media: None
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 20140513
Source_Currentness_Reference: Ground_Condition
Source_Citation_Abbreviation: NWI
Source_Contribution:
Provided data for the initial classification of coastal wetlands.
Process_Step:
Process_Description:
NWI data assigned codes corresponding to wetland classification used by SLAMM software. NWI polygons converted to raster.
Source_Used_Citation_Abbreviation:
Process_Date: 20140513
Source_Produced_Citation_Abbreviation:

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
False_Easting: 500000.0
False_Northing: 0.0
Planar_Coordinate_Information:
Planar_Coordinate_Encoding_Method: coordinate pair
Coordinate_Representation:
Abscissa_Resolution: 0.000000002220024164500956
Ordinate_Resolution: 0.000000002220024164500956
Planar_Distance_Units: meter
Geodetic_Model:
Horizontal_Datum_Name: North American Datum of 1983
Ellipsoid_Name: GRS 1980
Semi-major_Axis: 6378137.000000
Denominator_of_Flattening_Ratio: 298.257222101

Entity_and_Attribute_Information:
Overview_Description:
Entity_and_Attribute_Detail_Citation: None
Entity_and_Attribute_Overview:
Each grid contains a "value" field reporting the SLAMM wetland classification.
Attribute:
Attribute_Label: VALUE
Attribute_Definition: integer assigned by SLAMM software
Attribute_Definition_Source: SLAMM classification code
Attribute_Domain_Values:
1 Developed Dry Land (differentiated only if "protect developed" option is chosen.) 2 Undeveloped Dry Land (if lower elevation drops below salt boundary then inundation takes place. If connectivity model included, land must be directly connected to saline water to be inundated.) 3 Swamp (palustrine forested broad-leaved deciduous; if connectivity model is included, the swamp must be directly connected to saline water to be inundated.) 4 Cypress Swamp (needle-leaved deciduous) 5 Inland Fresh Marsh (lacustrine, palustrine, and riverine emergent) 6 Tidal Fresh Marsh (riverine tidal emergent) 7 Transitional Salt Marsh (estuarine intertidal scrub-shrub broad-leaved deciduous) 8 Regularly Flooded Marsh (salt marsh, estuarine intertidal emergent) 9 Mangrove (estuarine intertidal forested and scrub-shrub broad-leaved evergreen)
10 Estuarine Beach (estuarine intertidal unconsolidated shore sand or beach-bar)
11 Tidal Flat (estuarine intertidal unconsolidated shore mud/organic or flat)
12 Ocean Beach (marine intertidal unconsolidated shore sand)
13 Ocean Flat (marine intertidal unconsolidated shore mud or organic)
14 Rocky Intertidal (marine intertidal rocky shore)
15 Inland Open Water (riverine, lacustrine, and palustrine open water)
16 River Tidal Open Water (riverine tidal open water)
17 Estuarine Water (estuarine subtidal)
18 Tidal Creek (estuarine intertidal stream bed)
19 Open Ocean (marine subtidal)
20 Irregularly Flooded Marsh (irregularly flooded estuarine intertidal emergent)
21 Not Used (previously "tall Spartina")
22 Inland Shore (shoreline not subject to the elevation pre-processor; must be connected to saline water to be inundated)
23 Tidal Swamp (tidally influenced swamp)
24 Blank (not processed)
25 Vegetated Tidal Flat (site-specific data, not NWI derived; high tidal flat that borders on regularly flooded marsh but that has a lower density of vegetation than the adjoining marshland)
26 Backshore (site-specific data, not NWI derived; dry part of active beach above MHHW)
Attribute:
Attribute_Label: COUNT
Attribute_Definition: count
Attribute_Definition_Source: Esri
Attribute_Domain_Values:
Attribute:
Attribute_Label: YEAR
Attribute_Definition: scenario year
Attribute_Definition_Source: SLAMM software
Attribute_Domain_Values: 2012, 2025, 2050, 2075, 2100

Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: Earth Systems Research Center, University of New Hampshire
Contact_Person: GRANIT Database Manager
Contact_Position: GRANIT Database Manager
Contact_Address:
Address_Type: mailing and physical address
Address: Morse Hall, University of New Hampshire
City: Durham
State_or_Province: NH
Postal_Code: 03824
Contact_Voice_Telephone: 603-862-1792
Contact_Facsimile_Telephone: 603-862-0188
Contact_Electronic_Mail_Address: granit@unh.edu
Hours_of_Service: 8:30AM - 5 PM, EST
Resource_Description: Downloadable Data
Distribution_Liability:
Digital data in NH GRANIT represent the efforts of the contributing agencies to record information from the cited source materials. Earth Systems Research Center, under contract to the NH Office of Energy and Planning, and in consultation with cooperating agencies, maintains a continuing program to identify and correct errors in these data. OEP, ESRC, and the cooperating agencies make no claim as to the validity or reliability or to any implied uses of these data.
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name: ESRI grid
Transfer_Size: 8 MB
Digital_Transfer_Option:
Offline_Option:
Offline_Media: CD-ROM
Recording_Format: ESRI geodatabase
Fees:
No charge when downloaded from website. Cost of reproduction for provision on CD/DVD or other media.

Metadata_Reference_Information:
Metadata_Date: 20150427
Metadata_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: Earth Systems Research Center
Contact_Person: GRANIT Database Manager
Contact_Position: GRANIT Database Manager
Contact_Address:
Address_Type: physical
Address: 8 College Rd
City: Durham
State_or_Province: New Hampshire
Postal_Code: 03824
Country: US
Contact_Voice_Telephone: 603-862-1792
Contact_Facsimile_Telephone: 603-862-0188
Contact_Electronic_Mail_Address: granit@unh.edu
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 2.8.13 on Thu Apr 21 16:51:40 2016
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