e4sciences, LLC 20150805 Vector Digital Data Set (Polyline) This composite sub-bottom seismic dataset is a set of seismic cross-sections. The line spacing is between 15m for the lines parallel to the apron and 100m for the cross lines perpendicular to the apron. The dataset is in UTM18N in meters and it is reported relative to NAVD88 Mean Lower Low Water (MLLW), National Tidal Datum Epoch (1983-2001). e4 implemented a 1-10kHz chirp for roughly 75% of the lines, and a 4-24kHz chirp for the remaining 25%. The dataset consists of SEGY files in both RAW format and chirp analytical format. There are more than 900 seismic cross-sections The purpose of this data is to provide cross sections through the Holocene sediment layer, in some cases through the Pleistocene and rock. This data is not to be used for navigation but is intended for use in various environmental analyses. 20140417 20141023 observed Complete None planned -74.043441638 -73.968940637 40.807647473 40.641311915 None seismic sub-bottom cross sections imaging chirp None New York City None. Please see 'Distribution Info' for details. None. Users are advised to read the data set's metadata thoroughly to understand appropriate use and data limitations. New York State Department of Environmental Conservation John Ladd Benthic Mapping Coordinator Mailing and Physical

21 South Putt Corners Road

New Paltz NY 12561 8452563146 New York City Department of Environmental Protection Esri ArcGIS 10.3.1 (Build 4959) Service Pack N/A (Build N/A) No formal attribute acRepeated lines were acquired at different times. RTK tides were compared with NOAA tide stations. Repeated water velocity measured were made twice a day. curacy tests were conducted. Existing borings information benchmarked the results of the seismic cross sections. Tide mesaurements were observed and measured with reference to NOAA tide station at Battery New York (station ID 8518750). Exisitng and current bathymetric surveys were used to verify the vertical positioning of the seismic sub-bottom data. The data consists of two frequency contents, 1-10kHz and 4-24kHz. The RAW chirp signal is available and also the real component fo the analytical waveform is available in SEGY format. The data is for the mapping of shallow waters benthic layer. +/- 0.1 Meters +/- 0.1 Meters e4 applies proprietary set of protocols for processing this dataset.The processing creates six images for every line. 20141201 Vector String 895 Universal Transverse Mercator 18 0.9996 -75.0 0.0 500000.0 0.0 coordinate pair 0.6096 0.6096 Meter D_North_American_1983 GRS_1980 6378137.0 298.257222101 Attribute Table Table containing attribute information associated with the data set. Producer defined Field3 Unknown Producer defined Unknown DateT Date of data acquisition Producer defined 20140417 Unknown Producer defined 20140502 Unknown Producer defined 20140521 Unknown Producer defined 20140522 Unknown Producer defined 20140528 Unknown Producer defined 20140529 Unknown Producer defined 20140530 Unknown Producer defined 20140613 Unknown Producer defined 20140620 Unknown Producer defined 20140624 Unknown Producer defined 20140703 Unknown Producer defined 20140721 Unknown Producer defined 20140722 Unknown Producer defined 20140924 Unknown Producer defined 20141002 Unknown Producer defined 20141008 Unknown Producer defined 20141009 Unknown Producer defined 20141012 Unknown Producer defined 20141013 Unknown Producer defined 20141023 Unknown Producer defined Shape_Leng Length of the line Producer defined 3.45217164429 3636.681508 The entity and attribute information provided here describes the tabular data associated with the data set. Please review the detailed descriptions that are provided (the individual attribute descriptions) for information on the values that appear as fields/table entries of the data set. The entity and attribute information was generated by the individual and/or agency identified as the originator of the data set. Please review the rest of the metadata record for additional details and information. 20150805 Daniel Rosales e4sciences, LLC Mailing and Physical

27 Glen Road

Sandy Hook CT 06482 2032708100 FGDC Content Standard for Digital Geospatial Metadata FGDC-STD-001-1998 20220907 08383700 FGDC CSDGM Metadata TRUE 1.0 The purpose of this data is to provide cross sections through the Holocene sediment layer, in some cases through the Pleistocene and rock. This data is not to be used for navigation but is intended for use in various environmental analyses. This composite sub-bottom seismic dataset is a set of seismic cross-sections. The line spacing is between 15m for the lines parallel to the apron and 100m for the cross lines perpendicular to the apron. The dataset is in UTM18N in meters and it is reported relative to NAVD88 Mean Lower Low Water (MLLW), National Tidal Datum Epoch (1983-2001). e4 implemented a 1-10kHz chirp for roughly 75% of the lines, and a 4-24kHz chirp for the remaining 25%. The dataset consists of SEGY files in both RAW format and chirp analytical format. There are more than 900 seismic cross-sections.<br /><a href='https://opdgig.dos.ny.gov/datasets/069d50868de34c14ab2da02d39de5da6/explore' target='_self' rel='nofollow ugc'>View Dataset on the Gateway</a>Sub-bottom seismic cross-sections of New York Harbor's Holocene sediment deposit layer, including in some cases the Pleistocene sediment desposit layer and rock.seismicAtlantic Ocean Program