Identification_Information: Citation: Citation_Information: Originator: Jayne F. Knott, University of New Hampshire, Department of Civil & Environmental Engineering, Ph. D. Candidate Publication_Date: 20190416 Title: Projected Groundwater Rise Caused by Sea-Level Rise in New Hampshire Online_Linkage: Description: Abstract: The database contains projected groundwater rise caused by sea-level rise in the NH Seacoast region. The sea-level rise (SLR) scenarios are 1, 2, 4, 6, and 8 feet relative to the mean sea level (MSL) measured at the Fort Point tide gage in New Castle, NH. A regional groundwater flow model created by Thomas Mack of the U.S. Geological Survey (USGS) in 2009 was updated and modified to investigate groundwater changes caused by SLR. Groundwater elevations for MSL and the SLR scenarios were calculated using USGS MODFLOW-2005. Groundwater rise was calculated by taking the difference between the simulated groundwater elevation for each SLR scenario and the groundwater elevation at MSL. Mean sea level is defined as 0.31 feet below NAVD88 measured at the Fort Point tide gage in 2016. The boundaries of the resource are the Gulf of Maine to the East, the Piscataqua Estuary to the North, the Squamscott River to the West, and the New Hampshire/Massachusetts border to the South. Groundwater rise is also expected to occur along coastlines outside the bounds of this resource. Purpose: This resource was developed to assist municipalities, planners, researchers, and other stakeholders in planning for and adapting to rising groundwater caused by sea-level rise. Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 2016 Currentness_Reference: None Status: Progress: Complete Maintenance_and_Update_Frequency: None planned Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -70.969330 East_Bounding_Coordinate: -70.711517 North_Bounding_Coordinate: 43.122179 South_Bounding_Coordinate: 42.864413 Keywords: Theme: Theme_Keyword_Thesaurus: None Theme_Keyword: sea-level rise Theme_Keyword: groundwater rise Access_Constraints: None Use_Constraints: The data are intended for planning purposes only and are not for legal or engineering use. Data_Set_Credit: Jayne F. Knott, Ph.D. candidate; Jennifer M. Jacobs, Ph.D.; University of New Hampshire, Department of Civil & Environmental Engineering. This resource was developed as part of the 2018 CZM Project of Special Merit "Using Science, Building Social Capital, and Unpacking Tax Incentives for a Resilient Coastal New Hampshire", managed by the NHDES Coastal Program. NOAA-NOS-OCM-2018-2005389 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 Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Planar: Grid_Coordinate_System: Grid_Coordinate_System_Name: State Plane Coordinate System 1983 State_Plane_Coordinate_System: SPCS_Zone_Identifier: 2800 Transverse_Mercator: Scale_Factor_at_Central_Meridian: 0.999966666666667 Longitude_of_Central_Meridian: -71.6666666666667 Latitude_of_Projection_Origin: 42.5 False_Easting: 984250.0 False_Northing: 0.0 Planar_Coordinate_Information: Planar_Coordinate_Encoding_Method: coordinate pair Coordinate_Representation: Abscissa_Resolution: 0.000328083989501312 Ordinate_Resolution: 0.000328083989501312 Planar_Distance_Units: Foot_US Entity_and_Attribute_Information: Overview_Description: Entity_and_Attribute_Overview: The database contains five feature classes representing groundwater rise caused by sea-level rise. In addition, a sixth feature class represents the study area boundary. These feature classes are named as follows: p_1_0_ft_SLR_GWR - groundwater rise caused by a 1-foot sea level rise scenario p_2_0_ft_SLR_GWR - groundwater rise caused by a 2-foot sea level rise scenario p_4_0_ft_SLR_GWR - groundwater rise caused by a 4-foot sea level rise scenario p_6_0_ft_SLR_GWR - groundwater rise caused by a 6-foot sea level rise scenario p_8_0_ft_SLR_GWR - groundwater rise caused by a 8-foot sea level rise scenario p_SLR_GWR_StudyArea_Boundary - study area boundary The "gridcode" field in the p_*_0_ft_SLR_GWR layers represents the rise in groundwater (relative to MSL at Fort Point in 2016, in 0.001 feet) as a result of sea-level rise. Entity_and_Attribute_Detail_Citation: See Knott, J. F., Daniel, J.S., Jacobs, J., Kirshen, P., 2018. Modeling Groundwater Rise Caused by Sea-Level Rise in Coastal New Hampshire. Journal of Coastal Research (http://www.jcronline.org/doi/abs/10.2112/JCOASTRES-D-17-00153.1). Distribution_Information: Distributor: Contact_Information: Contact_Organization_Primary: Contact_Organization: Earth Systems Research Center, University of New Hampshire, Durham Contact_Person: GRANIT Database Manager Contact_Address: Address_Type: mailing and physical Address: Morse Hall, 8 College Rd City: Durham State_or_Province: NH Postal_Code: 03824 Country: US Contact_Voice_Telephone: 603-862-1792 Contact_Electronic_Mail_Address: granit@unh.edu Distribution_Liability: The data are intended for planning purposes only and are not for legal or engineering use. Metadata_Reference_Information: Metadata_Date: 20190417 Metadata_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: Earth Systems Research Ceenter Contact_Person: GRANIT Database Manager Contact_Position: GRANIT Database Manager Contact_Address: Address_Type: physical Address: Morse Hall, University of New Hampshire City: Durham State_or_Province: NH Postal_Code: 03824 Country: US Contact_Voice_Telephone: 603-862-1792 Metadata_Standard_Name: FGDC Content Standard for Digital Geospatial Metadata Metadata_Standard_Version: FGDC-STD-001-1998 Metadata_Time_Convention: local time