Data:DBSEABED: Difference between revisions

Latest revision as of 17:17, 19 February 2018

DBSEABED dataset information page

Short Description

Example data product - Seafloor
classification, Northern Gulf of Mexico

Statement: dbSEABED describes the materials and features of the global seafloor.

Abstract: [[Extended data description::dbSEABED is a Database/GIS that deals with the materials and features of the seabed. It holds data describing about 2 million seafloor sites. dbSEABED deals with the grain size textures, strengths and porosities, carbon and carbonate compositions, colors, structural features, and grain components of the seafloor. The scope of dbSEABED is global, from shoreline and continental shelf to the abyssal floor, addressing terrigenous-, volcanic- and biogenic-derived materials in their rock and sediment forms.

- The project supplies gridded outputs suitable for use in numerical models. The basic set of gridded parameters is: gravel, sand, mud (%), rock exposure (%), average grainsize and sorting (phi), carbonate (%). A specification of the parameters is given in the usSEABED web pages. dbSEABED uses the Wentworth grain size classification and scale.

A collection of ESRI ArcView 3.x and ArcGIS 9.x legends to this standard is available from this web address: GIS Legends. The format for delivery of gridded data from dbSEABED is the E.S.R.I. ASCII grid format, at finest 0.02 degrees cell size, with WGS 84 datums. The grid extents are grid-centred, i.e. ArcView 3.x format.

Compiled coverages:

Area	Description	Data example
East Asian Seas	Details: ncols 900; nrows 1000; cellsize 0.05; NODATA_value -99; generated 27 Feb 2012	Gridded coverage for Bottom-Type Dominances
Adriatic Sea	This coverage served as a test-bed for gridding software and to support the EUROSTRATAFORM initiative. Details: ncols 386; nrows 286; xllcorner 12.0; yllcorner 40.2; cellsize 0.02; NODATA_value -99	Bottom-type Dominances
Northern Gulf of Mexico ('GMF')	The development of this coverage was funded by the USGS and Gulf States Marine Fisheries Commission. Details: ncols 891; nrows 383; xllcorner -98.19; yllcorner 23.36; cellsize 0.02; NODATA_value -99; dateline 2008	Point-data distribution

]]

Data format

Data type:	Substrates
Data origin:	Measured
Data format:	ASCII
Other format:	ESRI grid
Data resolution:	Usually 0.02 deg
Datum:	WGS84

Data Coverage

Spatial data coverage: Global point source measurements
Temporal data coverage: Time averaged
Time period covered:

Availability

Download data: http://instaar.colorado.edu/~jenkinsc/dbseabed/coverage/
Data source: http://instaar.colorado.edu/~jenkinsc/dbseabed/

References

Cite as: Jenkins, C.J. 2010. Seafloor Substrates. INSTAAR, University of Colorado, Boulder CO USA. (URL: "https://csdms.colorado.edu/wiki/Data:DBSEABED"; Last edit 25Aug2013)

@@ Line 1: / Line 1: @@
 {{Data description
 |One-line data description=dbSEABED describes the materials and features of the global seafloor.
-|Extended data description=dbSEABED is an integration of all the  datasets that deal with the materials and features of the seabed. It holds data describing about 2 million seafloor sites, and integrates that pointwise data using an Information Processing System that has a number of processing steps and options. A unique and advantageous feature is that word-based descriptive data about seafloor bottom type is parsed and brought into conformance with the analytical numeric data type, so that they become co-mappable. This gives the best possible geographic coverage and information richness from the available data.
+|Extended data description=dbSEABED is a Database/GIS that deals with the materials and features of the seabed. It holds data describing about 2 million seafloor sites. dbSEABED deals with the grain size textures, strengths and porosities, carbon and carbonate compositions, colors, structural features, and grain components of the seafloor.
+The scope of dbSEABED is global, from shoreline and continental shelf to the abyssal floor, addressing  terrigenous-, volcanic- and biogenic-derived materials in their rock and sediment forms.
+-
+The project supplies gridded outputs suitable for use in numerical models. The basic set of gridded parameters is: gravel, sand, mud (%), rock exposure (%), average grainsize and sorting (phi), carbonate (%). A specification of the parameters is given in the [http://walrus.wr.usgs.gov/usseabed/content.html usSEABED] web pages. dbSEABED uses the [http://commons.wikimedia.org/wiki/File:Wentworth-Grain-Size-Chart.pdf Wentworth grain size] classification and scale.
-dbSEABED deals with the grain size textures, strengths and porosities, carbon and carbonate compositions, colors, structural features, and grain components of the seafloor. The diverse inputs on these properties from thousands of individual datasets are harmonized into a standardized and calibrated set of outputs, which initially is pointwise but then is computed into grids and other visualizations. For quality assurance reasons, a significant amount (about 20%) of the original data from the diverse input datasets are not accepted to outputs.
+A collection of ESRI ArcView 3.x and ArcGIS 9.x legends to this standard is available from this web address: GIS Legends. The format for delivery of gridded data from dbSEABED is the E.S.R.I. ASCII grid format, at finest 0.02 degrees cell size, with WGS 84 datums. The grid extents are grid-centred, i.e. ArcView 3.x format.
-The scope of dbSEABED is worldwide, from estuaries across the continental shelves to the very deepest ocean, dealing with the rock and sediment, and the terrigenous-, volcanic- and biogenic-derived materials. The data are sourced from public domain and collaborative datasets, from all the fields of science, survey, engineering and commerce.
+'''Compiled coverages''':
-|Upload image dataset=Adr mudT.jpg
-|Caption dataset image=Example data layer:<br> Distribution of mud areas in the Adriatic Sea (%mud).
+<table {{Prettytable}} class = "sortable" cellspacing="0" cellpadding="0" style="margin:0em 0em 0em 0;">
+<tr><th {{H13}}>Area</th><th {{H13}}>Description</th><th {{H13}}>Data example</th>
+</tr>
+<tr>
+<td>East Asian Seas</td>
+<td>Details: ncols 900; nrows 1000; cellsize 0.05; NODATA_value -99; generated 27 Feb 2012</td>
+<td>[[File:Ttt_domnc_th.png|thumbnail|Gridded coverage for Bottom-Type Dominances]]</td>
+</tr>
+<tr>
+<td>Adriatic Sea</td>
+<td>This coverage served as a test-bed for gridding software and to support the EUROSTRATAFORM initiative. Details: ncols 386; nrows 286; xllcorner 12.0; yllcorner 40.2; cellsize 0.02; NODATA_value -99</td>
+<td>[[File:Adr sndT.jpg|thumbnail|Bottom-type Dominances]]</td>
+</tr>
+<tr>
+<td>Northern Gulf of Mexico ('GMF')</td>
+<td>The development of this coverage was funded by the USGS and Gulf States Marine Fisheries Commission. Details: ncols 891; nrows 383; xllcorner -98.19; yllcorner 23.36; cellsize 0.02; NODATA_value -99; dateline 2008</td>
+<td>[[File:Gmf datT.jpg|thumbnail|Point-data distribution]]</td>
+</tr>
+</table>
+|Upload image dataset=Domnc3D 29Sep2011.png
+|Caption dataset image=Example data product - Seafloor<br> classification, Northern Gulf of Mexico
 }}
 {{Data format
@@ Line 13: / Line 37: @@
 |Data origin=Measured
 |Data format=ASCII
+|Other data format=ESRI grid
+|Data resolution=Usually 0.02 deg
+|Data projection=WGS84
 }}
 {{Dataset coverage
@@ Line 19: / Line 46: @@
 }}
 {{Dataset availability
-|Data download link=http://csdms.colorado.edu/wiki/DBSEABED
+|Data download link=http://instaar.colorado.edu/~jenkinsc/dbseabed/coverage/
 |Data source link=http://instaar.colorado.edu/~jenkinsc/dbseabed/
 }}
 {{Data references
-|Key references dataset=Jenkins, C.J. 2010. Seafloor Substrates. INSTAAR, University of Colorado, Boulder CO USA. (URL: "http://csdms.colorado.edu/wiki/DBSEABED"; Last edit 18 Feb 2010)
+|Key references dataset=Cite as: Jenkins, C.J. 2010. Seafloor Substrates. INSTAAR, University of Colorado, Boulder CO USA. (URL: "https://csdms.colorado.edu/wiki/Data:DBSEABED"; Last edit 25Aug2013)
 }}