Bathymetry of Magothy Bay, VA 2007-2009

• Main Author: Oertel, George
• Format: Dataset
• Language: English
• Published: Environmental Data Initiative 2018
• Subjects: Gomez; Smith Island
• Online Access: https://dx.doi.org/10.6073/pasta/192b1d2eccfd025c28ae5c047a2bde15; https://portal.edirepository.org/nis/mapbrowse?packageid=knb-lter-vcr.172.19

This dataset contains the bathymetry for Magothy Bay, Virginia, a small coastal bay located between Smith Island and the mainland of the Delmarva Peninsula near the mouth of the Chesapeake Bay. Methodology for collection is similar to that described in Gomez(2008) thesis (see network links). Pixels are 10x10 meters and depths below Mean High Water are given in meters. Coordinates are UTM WGS84, Zone 18N. For adjustments to Mean sea level and other datums see the NOAA Benchmark Data Sheets (here is an excerpt for a near by benchmark): Station ID: 8638863                               PUBLICATION DATE: 10/30/2003 Name:      CHESAPEAKE BAY BRIDGE TUNNEL                                VIRGINIA NOAA Chart: 12254                                 Latitude:        36° 58.0' N USGS Quad: CAPE HENRY                            Longitude:       76°Â 6.8' W                            T I D A L  D A T U M S Tidal datums at CHESAPEAKE BAY BRIDGE TUNNEL based on:     LENGTH OF SERIES:     19 YEARS     TIME PERIOD:          January 1983 - December 2001     TIDAL EPOCH:          1983-2001     CONTROL TIDE STATION:  Elevations of tidal datums referred to Mean Lower Low Water (MLLW), in METERS:     HIGHEST OBSERVED WATER LEVEL (02/05/1998)   = 2.006     MEAN HIGHER HIGH WATER (MHHW)               = 0.884     MEAN HIGH WATER (MHW)                       = 0.814     MEAN SEA LEVEL (MSL)                        = 0.431     MEAN TIDE LEVEL (MTL)                       = 0.426     MEAN LOW WATER (MLW)                        = 0.037     MEAN LOWER LOW WATER (MLLW)                 = 0.000     LOWEST OBSERVED WATER LEVEL (01/11/1978)   = -0.895 In June 2013, positive (+) depth values were replaced with negative (-) elevation values for consistency with other VCR datasets. No datum adjustments of the tidal datum were performed.