Description: This data layer represents Mean Higher High Water (MHHW) baseline used to model sea level rise scenarios for Great Bay (the Bay zone), Piscataqua River (River zone), and the New Hampshire seacoast (including the Embayment and Open Ocean zones). The MHHW was estimated at 3.6' for the Bay, 4.2' for the River and 4.4' for the Embayment and Open Ocean zones. Sea level rise data were derived using 2019/2020 LiDAR.
Description: This data layer represents a Mean Higher High Water (MHHW) plus a one percent change annual flood for Great Bay (the Bay zone), Piscataqua River (River zone), and the New Hampshire seacoast (including the Embayment and Open Ocean zones). The one percent change annual flood (i.e., 100-year flood) is based on the April 2014 preliminary Digital Flood Insurance Rate Maps (DFIRMs) for Rockingham and Strafford Counties.
Description: This data layer represents a scenario of Mean Higher High Water (MHHW) plus a one percent change annual flood, plus 2-ft sea level rise for Great Bay (the Bay zone), Piscataqua River (River zone), and the New Hampshire seacoast (including the Embayment and Open Ocean zones). Data were derived using 2019/2020 LiDAR.
Description: This data layer represents a scenario of Mean Higher High Water (MHHW) plus a one percent change annual flood, plus 4-ft sea level rise for Great Bay (the Bay zone), Piscataqua River (River zone), and the New Hampshire seacoast (including the Embayment and Open Ocean zones). Data were derived using 2019/2020 LiDAR.
Description: This data layer represents a scenario of Mean Higher High Water (MHHW) plus a one percent change annual flood, plus 6-ft sea level rise for Great Bay (the Bay zone), Piscataqua River (River zone), and the New Hampshire seacoast (including the Embayment and Open Ocean zones). Data were derived using 2019/2020 LiDAR.
Description: This data layer represents a scenario of Mean Higher High Water (MHHW) plus a one percent change annual flood, plus 8-ft sea level rise for Great Bay (the Bay zone), Piscataqua River (River zone), and the New Hampshire seacoast (including the Embayment and Open Ocean zones). Data were derived using 2019/2020 LiDAR.
Description: This data layer represents a scenario of Mean Higher High Water (MHHW) plus a one percent change annual flood, plus 2-ft sea level rise for Great Bay (the Bay zone), Piscataqua River (River zone), and the New Hampshire seacoast (including the Embayment and Open Ocean zones). Data were derived using 2019/2020 LiDAR. The one percent change annual flood (i.e., 100-year flood) is based on the April 2014 preliminary Digital Flood Insurance Rate Maps (DFIRMs) for Rockingham and Strafford Counties.
Description: This data layer represents a scenario of Mean Higher High Water (MHHW) plus a one percent change annual flood, plus 4-ft sea level rise for Great Bay (the Bay zone), Piscataqua River (River zone), and the New Hampshire seacoast (including the Embayment and Open Ocean zones). Data were derived using 2019/2020 LiDAR. The one percent change annual flood (i.e., 100-year flood) is based on the April 2014 preliminary Digital Flood Insurance Rate Maps (DFIRMs) for Rockingham and Strafford Counties.
Description: This data layer represents a scenario of Mean Higher High Water (MHHW) plus a one percent change annual flood, plus 6-ft sea level rise for Great Bay (the Bay zone), Piscataqua River (River zone), and the New Hampshire seacoast (including the Embayment and Open Ocean zones). Data were derived using 2019/2020 LiDAR. The one percent change annual flood (i.e., 100-year flood) is based on the April 2014 preliminary Digital Flood Insurance Rate Maps (DFIRMs) for Rockingham and Strafford Counties.
Description: This data layer represents a scenario of Mean Higher High Water (MHHW) plus a one percent change annual flood, plus 8-ft sea level rise for Great Bay (the Bay zone), Piscataqua River (River zone), and the New Hampshire seacoast (including the Embayment and Open Ocean zones). Data were derived using 2019/2020 LiDAR. The one percent change annual flood (i.e., 100-year flood) is based on the April 2014 preliminary Digital Flood Insurance Rate Maps (DFIRMs) for Rockingham and Strafford Counties.
Description: This data layer represents a scenario of Mean Higher High Water (MHHW) plus 1-foot sea level rise for Great Bay (the Bay zone), Piscataqua River (River zone), and the New Hampshire seacoast (including the Embayment and Open Ocean zones). Data were derived using 2019/2020 LiDAR.
Description: This data layer is a line representing a Mean Higher High Water (MHHW) baseline used to model sea level rise scenarios for Great Bay (the Bay zone), Piscataqua River (River zone), and the New Hampshire seacoast (including the Embayment and Open Ocean zones). The MHHW was estimated at 3.6' for the Bay, 4.2' for the River and 4.4' for the Embayment and Open Ocean zones. Sea level rise data were derived using 2019/2020 LiDAR.