OR/14/013 Modelled volume, purpose and scale - Revision history

Ajhil: /* Datasets provided to users */

2022-04-22T12:35:42Z

Datasets provided to users

← Older revision		Revision as of 13:35, 22 April 2022
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	The Central Glasgow and Clyde Catchment scale bedrock models were created in the GOCAD® modelling software and have been converted to ESRI grids for supply to users. The surface grids and a combined fault grid were exported from the modelled GOCAD® TIN’s using a grid spacing of 25 m for the Central Glasgow bedrock model and 50 m for the Clyde Catchment scale bedrock model. The stratigraphic codes used for naming the modelled surfaces are described in ([[OR/14/013 Modelled surface/volumes\|Modelled surface/volumes]]).		The Central Glasgow and Clyde Catchment scale bedrock models were created in the GOCAD® modelling software and have been converted to ESRI grids for supply to users. The surface grids and a combined fault grid were exported from the modelled GOCAD® TIN’s using a grid spacing of 25 m for the Central Glasgow bedrock model and 50 m for the Clyde Catchment scale bedrock model. The stratigraphic codes used for naming the modelled surfaces are described in ([[OR/14/013 Modelled surface/volumes\|Modelled surface/volumes]]).

	Examples of uncertainty layers are also provided as images or ASC files; these are described further in ([[OR/14/013 Model ~~uncertainity~~\|Model ~~uncertainity~~]]) of this report. Further uncertainty layers will be provided to the ASK Network on delivery of all the superficial deposits models.		Examples of uncertainty layers are also provided as images or ASC files; these are described further in ([[OR/14/013 Model uncertainty\|Model uncertainty]]) of this report. Further uncertainty layers will be provided to the ASK Network on delivery of all the superficial deposits models.

	==References==		==References==

Ajhil: /* Datasets provided to users */

2022-04-22T12:33:07Z

Datasets provided to users

← Older revision		Revision as of 13:33, 22 April 2022
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	The Central Glasgow and Clyde Catchment scale bedrock models were created in the GOCAD® modelling software and have been converted to ESRI grids for supply to users. The surface grids and a combined fault grid were exported from the modelled GOCAD® TIN’s using a grid spacing of 25 m for the Central Glasgow bedrock model and 50 m for the Clyde Catchment scale bedrock model. The stratigraphic codes used for naming the modelled surfaces are described in ([[OR/14/013 Modelled surface/volumes\|Modelled surface/volumes]]).		The Central Glasgow and Clyde Catchment scale bedrock models were created in the GOCAD® modelling software and have been converted to ESRI grids for supply to users. The surface grids and a combined fault grid were exported from the modelled GOCAD® TIN’s using a grid spacing of 25 m for the Central Glasgow bedrock model and 50 m for the Clyde Catchment scale bedrock model. The stratigraphic codes used for naming the modelled surfaces are described in ([[OR/14/013 Modelled surface/volumes\|Modelled surface/volumes]]).

	Examples of uncertainty layers are also provided as images or ASC files; these are described further in ([[OR/14/013 Model ~~uncertainty~~\|Model ~~uncertainty~~]]) of this report. Further uncertainty layers will be provided to the ASK Network on delivery of all the superficial deposits models.		Examples of uncertainty layers are also provided as images or ASC files; these are described further in ([[OR/14/013 Model uncertainity\|Model uncertainity]]) of this report. Further uncertainty layers will be provided to the ASK Network on delivery of all the superficial deposits models.

	==References==		==References==

Ajhil: /* Datasets provided to users */

2022-04-22T12:31:39Z

Datasets provided to users

← Older revision		Revision as of 13:31, 22 April 2022
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	For the ESRI grids, the base (e.g. witi_dmtn_b) and top (e.g. witi_dmtn_t) have been merged across the whole of the 5 block model areas. Outlines of the modelled unit extent (‘envelope’) are supplied as ESRI shapefiles across the 5 block areas (and beyond).		For the ESRI grids, the base (e.g. witi_dmtn_b) and top (e.g. witi_dmtn_t) have been merged across the whole of the 5 block model areas. Outlines of the modelled unit extent (‘envelope’) are supplied as ESRI shapefiles across the 5 block areas (and beyond).

	The resolution of the superficial deposit ASCII and ESRI grids is 25 m.		The resolution of the superficial deposit ASCII and ESRI grids is 25 m.

	The Lithoframe Viewer software and an accompanying manual can be downloaded from the BGS website at [http://www.bgs.ac.uk/services/3Dgeology/lithoframeSamples.html http://www.bgs.ac.uk/services/3Dgeology/lithoframeSamples.html]. Note that in some versions of Windows it is necessary to paste in the .GSIPRe file location and name to the ‘Load model’ screen, loading of the models and refreshing of the 3D window may take a few minutes, and that creating a horizontal slice in the Lithoframe Viewer takes a considerable time (20 minutes).		The Lithoframe Viewer software and an accompanying manual can be downloaded from the BGS website at [http://www.bgs.ac.uk/services/3Dgeology/lithoframeSamples.html http://www.bgs.ac.uk/services/3Dgeology/lithoframeSamples.html]. Note that in some versions of Windows it is necessary to paste in the .GSIPRe file location and name to the ‘Load model’ screen, loading of the models and refreshing of the 3D window may take a few minutes, and that creating a horizontal slice in the Lithoframe Viewer takes a considerable time (20 minutes).

	The Central Glasgow and Clyde Catchment scale bedrock models were created in the GOCAD® modelling software and have been converted to ESRI grids for supply to users. The surface grids and a combined fault grid were exported from the modelled GOCAD® TIN’s using a grid spacing of 25 m for the Central Glasgow bedrock model and 50 m for the Clyde Catchment scale bedrock model. The stratigraphic codes used for naming the modelled surfaces are described in ~~section 2~~.		The Central Glasgow and Clyde Catchment scale bedrock models were created in the GOCAD® modelling software and have been converted to ESRI grids for supply to users. The surface grids and a combined fault grid were exported from the modelled GOCAD® TIN’s using a grid spacing of 25 m for the Central Glasgow bedrock model and 50 m for the Clyde Catchment scale bedrock model. The stratigraphic codes used for naming the modelled surfaces are described in ([[OR/14/013 Modelled surface/volumes\|Modelled surface/volumes]]).

	Examples of uncertainty layers are also provided as images or ASC files; these are described further in ~~section 8~~ of this report. Further uncertainty layers will be provided to the ASK Network on delivery of all the superficial deposits models.		Examples of uncertainty layers are also provided as images or ASC files; these are described further in ([[OR/14/013 Model uncertainty\|Model uncertainty]]) of this report. Further uncertainty layers will be provided to the ASK Network on delivery of all the superficial deposits models.

	==References==		==References==

Ajhil: /* Datasets provided to users */

2022-04-22T12:30:10Z

Datasets provided to users

← Older revision		Revision as of 13:30, 22 April 2022
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	For the ASCII grids, these are provided in folders by block model area and with a base (e.g. witi_dmtn_b.asc), top (e.g. witi_dmtn_t.asc) and thickness (e.g. witi_dmtn_th.asc). Lenses only have a top.		For the ASCII grids, these are provided in folders by block model area and with a base (e.g. witi_dmtn_b.asc), top (e.g. witi_dmtn_t.asc) and thickness (e.g. witi_dmtn_th.asc). Lenses only have a top.

	The stratigraphic and rock type codes used in the exported model grids are described in ([[OR/14/013 Modelled ~~surfaces~~/volumes\|Modelled ~~surfaces~~/volumes]]). In addition the qualifiers _t, _b and _th are used to indicate the unit top, base and thickness respectively.		The stratigraphic and rock type codes used in the exported model grids are described in ([[OR/14/013 Modelled surface/volumes\|Modelled surface/volumes]]). In addition the qualifiers _t, _b and _th are used to indicate the unit top, base and thickness respectively.

	For the ESRI grids, the base (e.g. witi_dmtn_b) and top (e.g. witi_dmtn_t) have been merged across the whole of the 5 block model areas. Outlines of the modelled unit extent (‘envelope’) are supplied as ESRI shapefiles across the 5 block areas (and beyond).		For the ESRI grids, the base (e.g. witi_dmtn_b) and top (e.g. witi_dmtn_t) have been merged across the whole of the 5 block model areas. Outlines of the modelled unit extent (‘envelope’) are supplied as ESRI shapefiles across the 5 block areas (and beyond).

Ajhil: /* Datasets provided to users */

2022-04-22T12:29:32Z

Datasets provided to users

← Older revision		Revision as of 13:29, 22 April 2022
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	For the ASCII grids, these are provided in folders by block model area and with a base (e.g. witi_dmtn_b.asc), top (e.g. witi_dmtn_t.asc) and thickness (e.g. witi_dmtn_th.asc). Lenses only have a top.		For the ASCII grids, these are provided in folders by block model area and with a base (e.g. witi_dmtn_b.asc), top (e.g. witi_dmtn_t.asc) and thickness (e.g. witi_dmtn_th.asc). Lenses only have a top.

	The stratigraphic and rock type codes used in the exported model grids are described in ~~section 2~~. In addition the qualifiers _t, _b and _th are used to indicate the unit top, base and thickness respectively.		The stratigraphic and rock type codes used in the exported model grids are described in ([[OR/14/013 Modelled surfaces/volumes\|Modelled surfaces/volumes]]). In addition the qualifiers _t, _b and _th are used to indicate the unit top, base and thickness respectively.

	For the ESRI grids, the base (e.g. witi_dmtn_b) and top (e.g. witi_dmtn_t) have been merged across the whole of the 5 block model areas. Outlines of the modelled unit extent (‘envelope’) are supplied as ESRI shapefiles across the 5 block areas (and beyond).		For the ESRI grids, the base (e.g. witi_dmtn_b) and top (e.g. witi_dmtn_t) have been merged across the whole of the 5 block model areas. Outlines of the modelled unit extent (‘envelope’) are supplied as ESRI shapefiles across the 5 block areas (and beyond).

Ajhil: /* Bedrock */

2022-04-22T12:27:30Z

Bedrock

← Older revision		Revision as of 13:27, 22 April 2022
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	==Bedrock==		==Bedrock==
	[[Image:14013fig2.jpg\|thumb\|center\|600px\|'''Figure 2''' Image showing the extent of the Central Glasgow Bedrock Model and the extent of the lower resolution Clyde Catchment scale bedrock model (blue), provided to the ASK Network as a clipped 10 km buffer around the Central Glasgow bedrock model.]]		[[Image:14013fig2.jpg\|thumb\|center\|600px\|'''Figure 2'''    Image showing the extent of the Central Glasgow Bedrock Model and the extent of the lower resolution Clyde Catchment scale bedrock model (blue), provided to the ASK Network as a clipped 10 km buffer around the Central Glasgow bedrock model.]]

	Bedrock modelling has been undertaken at a variety of scales by the British Geological Survey in the Clyde Catchment. The model scale is dependent on the data available and used, the number of coal seams, stratigraphic surfaces and faults included in the model.		Bedrock modelling has been undertaken at a variety of scales by the British Geological Survey in the Clyde Catchment. The model scale is dependent on the data available and used, the number of coal seams, stratigraphic surfaces and faults included in the model.

Ajhil: /* Superficial deposits */

2022-04-22T12:27:16Z

Superficial deposits

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	==Superficial deposits==		==Superficial deposits==
	[[Image:14013 fig1.jpg\|thumb\|center\|600px\|'''Figure 1''' Superficial deposits model areas.]]		[[Image:14013 fig1.jpg\|thumb\|center\|600px\|'''Figure 1'''    Superficial deposits model areas.]]

	The Superficial Deposits Models of the Glasgow area were constructed in tiled areas (Figure 1) for reasons of computing power and software capability. In January 2013, the Central Glasgow tile was released to the ASK (Accessing Subsurface Knowledge) knowledge exchange network which has the corner coordinates SW 255000, 660000 to NE 265000, 670000. In June 2013		The Superficial Deposits Models of the Glasgow area were constructed in tiled areas (Figure 1) for reasons of computing power and software capability. In January 2013, the Central Glasgow tile was released to the ASK (Accessing Subsurface Knowledge) knowledge exchange network which has the corner coordinates SW 255000, 660000 to NE 265000, 670000. In June 2013

Dbk: /* Superficial deposits */

2015-08-06T08:17:01Z

Superficial deposits

← Older revision		Revision as of 09:17, 6 August 2015
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	The purpose of the Superficial Deposits Models is to give a broad indication of the likely subsurface sequence from Devensian glacial till to artificial (man-made) deposits across Glasgow for use during the desk study stage, in for example the assessment of potential infrastructure alignments and locations, and relatively broad scales of planning. However, the model is also well suited to act as a ''guide ''for studies at more detailed scales, and especially as a basis for planning and improving the economic efficiency of, site investigations. However, users are advised against basing interpretations on extreme exaggeration of the vertical or horizontal scales of the models.		The purpose of the Superficial Deposits Models is to give a broad indication of the likely subsurface sequence from Devensian glacial till to artificial (man-made) deposits across Glasgow for use during the desk study stage, in for example the assessment of potential infrastructure alignments and locations, and relatively broad scales of planning. However, the model is also well suited to act as a ''guide ''for studies at more detailed scales, and especially as a basis for planning and improving the economic efficiency of, site investigations. However, users are advised against basing interpretations on extreme exaggeration of the vertical or horizontal scales of the models.

	The Superficial Deposits Models were improved in 2012–14 to be fully consistent with surrounding models and to include some new cross-sections in the south-west part of the model, compared to earlier versions supplied by the British Geological Survey to Clyde Gateway Developments Ltd, Glasgow City Council, South Lanarkshire Council and Scottish Enterprise ~~(see section 4.1 below)~~. Versions supplied to the ASK Network in March 2014 are version 3 of the Central Glasgow model and version 2 of the surrounding tiles.		The Superficial Deposits Models were improved in 2012–14 to be fully consistent with surrounding models and to include some new cross-sections in the south-west part of the model, compared to earlier versions supplied by the British Geological Survey to Clyde Gateway Developments Ltd, Glasgow City Council, South Lanarkshire Council and Scottish Enterprise. Versions supplied to the ASK Network in March 2014 are version 3 of the Central Glasgow model and version 2 of the surrounding tiles.

	==Bedrock==		==Bedrock==

Dbk: /* Superficial deposits */

2015-08-06T08:16:22Z

Superficial deposits

← Older revision		Revision as of 09:16, 6 August 2015
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	The purpose of the Superficial Deposits Models is to give a broad indication of the likely subsurface sequence from Devensian glacial till to artificial (man-made) deposits across Glasgow for use during the desk study stage, in for example the assessment of potential infrastructure alignments and locations, and relatively broad scales of planning. However, the model is also well suited to act as a ''guide ''for studies at more detailed scales, and especially as a basis for planning and improving the economic efficiency of, site investigations. However, users are advised against basing interpretations on extreme exaggeration of the vertical or horizontal scales of the models.		The purpose of the Superficial Deposits Models is to give a broad indication of the likely subsurface sequence from Devensian glacial till to artificial (man-made) deposits across Glasgow for use during the desk study stage, in for example the assessment of potential infrastructure alignments and locations, and relatively broad scales of planning. However, the model is also well suited to act as a ''guide ''for studies at more detailed scales, and especially as a basis for planning and improving the economic efficiency of, site investigations. However, users are advised against basing interpretations on extreme exaggeration of the vertical or horizontal scales of the models.

	The Superficial Deposits Models were improved in ~~2012-14~~ to be fully consistent with surrounding models and to include some new cross-sections in the south-west part of the model, compared to earlier versions supplied by the British Geological Survey to Clyde Gateway Developments Ltd, Glasgow City Council, South Lanarkshire Council and Scottish Enterprise (see section 4.1 below). Versions supplied to the ASK Network in March 2014 are version 3 of the Central Glasgow model and version 2 of the surrounding tiles.		The Superficial Deposits Models were improved in 2012–14 to be fully consistent with surrounding models and to include some new cross-sections in the south-west part of the model, compared to earlier versions supplied by the British Geological Survey to Clyde Gateway Developments Ltd, Glasgow City Council, South Lanarkshire Council and Scottish Enterprise (see section 4.1 below). Versions supplied to the ASK Network in March 2014 are version 3 of the Central Glasgow model and version 2 of the surrounding tiles.

	==Bedrock==		==Bedrock==

Dbk: /* Acknowledgements */

2015-08-06T08:16:00Z

Acknowledgements

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	{{OR/14/013}}		{{OR/14/013}}
	==Acknowledgements ==		==Acknowledgements ==
	A large number of individuals from the Clyde Basin Urban Superproject (CUSP) have contributed to this work. We would particularly like to thank the following: Tony Irving, Bill McLean and Sandy Henderson for data entry and compilation, and the modellers additional to the report authors — Jo Merritt, Sue Loughlin, Andrew Finlayson, Tim Kearsey, Charlotte Vye- Brown, Ricky Terrington and Gaud Pouliquen. Dave Lawrence played a key role in inserting water into the revised models. Lauren Noakes, Keith Henderson and Lesley Oliver assisted in model quality control and model exports.		A large number of individuals from the Clyde Basin Urban Superproject (CUSP) have contributed to this work. We would particularly like to thank the following: Tony Irving, Bill McLean and Sandy Henderson for data entry and compilation, and the modellers additional to the report authors — Jo Merritt, Sue Loughlin, Andrew Finlayson, Tim Kearsey, Charlotte Vye-Brown, Ricky Terrington and Gaud Pouliquen. Dave Lawrence played a key role in inserting water into the revised models. Lauren Noakes, Keith Henderson and Lesley Oliver assisted in model quality control and model exports.

	==Summary ==		==Summary ==