geology digimap
DESCRIPTION
Slides used in an EDINA webinar on Geology Digimap, on 27th February 2013. Covers the British Geological Survey map data and services that are available in Geology Digimap, a subscription service for UK further education and higher education.TRANSCRIPT
Geology Digimap
• Online service, available since 2007• British Geological Survey geological map data, licensed
by JISC for use in education• Subscription service• User registration is required• Functions:
• View/print/download maps online• Download map data, create own maps• Access Lexicon of Rock Units
Geology Digimap
•Geology Roam - create, view, print and download maps online•Geology Download – download geological map data •Using geological map data in ArcGIS
Geology Digimap
Geology Roam – view geological maps with OS maps
as background
Download geological map data – 4 products
available
Geology Roam
Navigation and hints/tips
Task menu: search,
customise, active legend, map info, save, view geological
Photos
Tools: fade out maps, annotate, measure, print
Search options
Search - place name
•List of matches for Liverpool returned
•Click once on your choice to generate a map centred on that location
Search - place name
• Place name database - 1:50000 Scale Gazetteer
• Any place name on OS Landranger maps can be used
• Street names cannot be used
Search – place name
Postcode search
Detailed view
returned
Map Views
Map views
• Can no longer see map view name in the top left corner
• Found in the Map Information area
Panning
Click and drag on the map to move in
any direction
Or use compass to pan NSEW
Zooming
Use the scale bar to zoom in or out to
next view
•Double click to zoom in to that point•Use scroll wheel on mouse to zoom in/out•Click on the drag zoom tool and draw a box
Map Content Control
•Control display of geological map layers
Map Content Control
•Check / uncheck boxes to display / hide layers
•Content reflects geology at the map location
BGS datasets
http://www.bgs.ac.uk/products/digitalmaps/digmapgb.html
Map fade slider
Map fade slider
Map fade slider
Map Information
• map view• BGS map product• map extent• cursor coordinates• Current print scale
Geology Roam JIDI images
• JIDI Image links:http://edinadigimap.blogspot.com/2010/09/geological-photos-in-geology-roam.html
• Over 3000 images mainly found in geologically rich areas such as Cumbria, North and South Wales, the Dorset coast, Edinburgh etc. The images cover a wide range of features from details of bedding planes and large crystals in rock faces to aerial photographs of valleys showing glacial erosion features.
• Available at 5 most detailed zoom levels in Geology Roam
Geological Photos
•Available at 5 most zoomed in views
•Click the camera icon at top right or on
Task Menu, to display image locations
My Maps
Click Save Current Map
My Maps
Map is now permanently available in My Maps
Feature info.
Click i to activate get feature info. tool
Feature info.
• Click on any area of the map for info. • Places marker and highlights polygon
Active Legends
• Active Legend displays all the rocks shown on your current map
• Sort Alphabetically or by Frequency
Active Legends
• Select a rock in the legend, or on the map – the rock is highlighted on the map
Active Legends
• By default, the legend does not automatically update when you pan around or zoom in or out
• Options to change the default settings at bottom of legend
Annotation tools
• Click icon to activate annotations toolbar
• Add symbols, shapes, lines, labels
Measurement tools
• Click icon to activate measurement tools
• Box appears with distance/area measurement options
Click Print icon at top right
Check satisfied with print area selected – can click and drag on map to change
Options: title, NG lines, annotations, rock labels, layout (A3/A4, portrait/landscape)
PDF print generated, with copyright statement, date and time created
Geology Digimap
•Geology Roam•Geology Download•Using geological map data in ArcGIS
Geology Download
Geology Digimap Download
•4 data sets available, in 2 formats
•Can select to download layers of interest only
Geology Digimap data
• BGS Offshore Data 1:250000• DigBath250 – vector digital bathymetry of UK
http://www.bgs.ac.uk/products/digbath250/
• Mapping and modelling of the sea bed and sub seabed. It may also be useful for regional scale tidal, current and water column modelling. Includes the whole of the UK continental shelf and slope and extends into adjacent European waters to cover the whole of the Irish Sea and North Sea.
BGS OpenScience
http://www.bgs.ac.uk/opengeoscience/
BGS OpenScience Maps Section
Access Geology Download
Geology Download interface
Step-by-step download process:1. Identify the product/format2. Search for your location3. Choose the required tiles4. Make download settings5. Download data files
Step 1: Select product/format
• Select product
• Choose data format:– Shape
(ArcGIS)– MID/MIF
(MapInfo)
Step 2: Searching for data
• Select a location search method
• Choose a result from the list generated by the search
Step 3: Select tiles
• Select the required tiles from the list or map
• Select the required layers for those tiles
• NOTE: Offshore data is available as 1 tile only
Step 4: Download settings
• Archiving and compression
– Unix, PC, Mac?
• Large numbers of component files mean no individual file downloads
• All downloads delivered in .zip or .tar archives
Step 5: Downloading
• Right-click, ‘Save link as..’ or ‘Save Target As…’
• Click the link to go to the download page
Geology Digimap
•Geology Roam•Geology Download•Using geological map data in ArcGIS
Geology Download - file contents
• For each SHP or MIF/MID file downloaded, an AVL file is supplied.• AVL, or layer, files, allow us to style the data in GIS with BGS cartography.
Geology data in ArcGIS
• Step 1 – add the Shape files
Geology data in ArcGIS
• Step 2 – view the unstyled data layers
Geology data in ArcGIS
• Apply AVL files to each Shape file
Geology data in ArcGIS
• View styled data