About this Dataset

Bottom Classification 2002 Great Gull Bank

Bottom classification based on ArcGIS 10.2 maximum likelihood raster classification, converted from raster to polygon. Data collected using QTC (Quester Tangent Corporation) bottom classification technology which collects and analyzes acoustic returns, and provides a framework for classifying the seabed into different regions based on their acoustic characteristics. Data is then post processed using QTC IMPACT software. These data were collected and processed in 2004. Equipment: Knudsen 320BP Dual Frequency Echosounder ( 28kHz/200kHz) Quester Tangent QTC View Seabed Classification System Quester Tangent QTC Impact Post-Processing

Funding to compile these datasets provided by BOEM under cooperative agreement number: M14AC00007. Data processing and compilation was executed by Maryland Geological Survey.
Organization: State of Maryland
Last updated: 2025-07-26T20:21:17.214996

Tables

Table 1

@usgov.state_of_maryland_bottom_classification_2002_great_gull_bank.table_1

112.05 kB
612 rows
6 columns


CREATE TABLE table_1 (
  "the_geom" VARCHAR,
  "gis_object_id" BIGINT,
  "id" BIGINT,
  "grid_code" BIGINT,
  "gis_shape_area_m" DOUBLE,
  "gis_shape_length_m" DOUBLE
);