[auscope-geosciml] GeoSciML Thematic View schema - callfor feedback

Tellez-Arenas Agnes a.tellez-arenas at brgm.fr
Wed Sep 29 03:40:17 EDT 2010


Hi, 
 
They are not searchable data because we have gsmltv:representativeUpperAge_uri  and gsmltv:representativeLowerAge_uri, but I don't find the representativeLithology_uri?
 
Agnès

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De : auscope-geosciml-bounces at lists.arcs.org.au [mailto:auscope-geosciml-bounces at lists.arcs.org.au] De la part de Bruce.Simons at dpi.vic.gov.au
Envoyé : mercredi 29 septembre 2010 07:36
À : auscope-geosciml at lists.arcs.org.au
Objet : Re: [auscope-geosciml] GeoSciML Thematic View schema - callfor feedback



> Because they are just labels, not searchable data, I'm inclined towards the latter. 
+1 

Cheers
Bruce 

Ph: +61-3-9658 4502
Fax: +61-3-9658 4555 
Mobile: +61 429 177155 



Alistair Ritchie <alistair.bh.ritchie at gmail.com> 
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29/09/2010 09:55 AM 
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Re: [auscope-geosciml] GeoSciML Thematic View schema - call for        feedback

	




Thanks Steve

An example from one of GSV's development WMSs is as follows:

LITHOLOGY:
Format: [lithology label], [proportion]; [lithology label], [proportion]; ...
Example: 'mudstone, dominant; sandstone, minor'

GEOLOGIC HISTORY:
Format: [oldest age] to [youngest age], [process] - [environment]; [oldest age] to [youngest age], [process] - [environment]; ...
Example: 'Early Cambrian to Late Cambrian, turbidity current - deep sea, Cambrian to Silurian, orogenic metamorphism - convergent plate boundary'

Question: do we mandate a format for these labels, or do we allow each service provider to determine the best way to present their data? Because they are just labels, not searchable data, I'm inclined towards the latter.

Cheers
Alistair

Alistair Ritchie
GEOSCIENCE VICTORIA | EARTH RESOURCES DIVISION
Department of Primary Industries | Melbourne, Victoria, Australia
Tel: +61 3 9658 4512 | Fax: +61 3 9658 4555


On 16 September 2010 00:57, Stephen M Richard <steve.richard at azgs.az.gov <mailto:steve.richard at azgs.az.gov> > wrote: 
Agnes--
here's some examples of a structured approach to the text strings that might be used in a flat file format to summarize the lithology and geologic history
steve


LITHOLOGY COMPOSITION (Text) – Composition of the mapped unit in terms of rock types from the standard lithology vocabulary, along with a proportion value for each constituent. Encoded as a set of {lithology:proportion} tuples. Rock types will be specified with preferred names from a CGI lithology vocabulary. Proportion values will also be specified from a controlled vocabulary, and definition for these terms will be accessible through the same mechanism as the lithology vocabulary.  The format will be “Lith1:prop1;Lith2:prop2”. The lithology vocabulary includes some hierarchy, and the lithology terms could encode the hierarchy from most general to most specific (granitic rock/granodiorite). The first lithology listed will be considered the most abundant and used for symbolization in a lithology map portrayal. 

GEOLOGIC History (Text) – Text string for geologic age of event(s) in genesis of unit.  Specified as “Age(NNN.N)[?][-Age(NNN.N)[?]]:Event” tuples, with multiple values separated by semicolons. If two age values are included, separated by a hyphen, for an event, the event occurred during an age range. Older age bound of range is listed first. If a numeric age is known, it should be added after the corresponding stratigraphic age term in parenthesis. Numeric age values are in millions of years before 1950 (Ma). Hierarchy of stratigraphic ages is indicated from most general to most specific, with the named eras separated by ‘/’. To reduce the likelihood of the age string exceeding 255 characters and being truncated in shapefiles, stratigraphic era names do not need to be repeated if they have already been used. The confidence term is optional, defaulting to ‘std’, indicating that the age is considered reliable with a standard level of confidence. Other values allowed are ‘low’, used to indicate that the associated age assignment is uncertain, and ‘unk’ to indicate unknown reliability. Examples: “Phanerozoic/Mesozoic/Jurassic-Cretaceous:Deposition”, “Phanerozoic/­Cenozoic/­Neogene/­Miocene(12.5):Eruption”, “Precambrian/­Proterozoic/­Paleo­protero­zoic­(1750):­Eruption; Mesoproterozoic(1420):Intrusion; Phanerozoic/­Mesozoic/­Jurassic­(165):­Intrusion; Cenozoic/­Paleogene/Eocene?-Neogene/Miocene:Metamorphism; Miocene:­Cooling”. 



On 9/15/2010 12:52 AM, Tellez-Arenas Agnes wrote: 
Hi, 
  
A first question. 
  
I understand that gsmltv:geologicHistory (concat value YES) represents several attributes that are concatenated. 
But what if there are several geologicHistory? 
  
For gsmltv:lithology, I guess that if there are several compositionPart, all the lithologies are concatenated, without role and proportion? 
  
 Thanks for this work! 
  
Best regards 
  
Agnès 


________________________________

De : auscope-geosciml-bounces at lists.arcs.org.au <mailto:auscope-geosciml-bounces at lists.arcs.org.au>  [mailto:auscope-geosciml-bounces at lists.arcs.org.au <mailto:auscope-geosciml-bounces at lists.arcs.org.au> ] De la part de Alistair Ritchie
Envoyé : mercredi 15 septembre 2010 03:43
À : AuScope-GeoSciML
Objet : [auscope-geosciml] GeoSciML Thematic View schema - call for feedback

BACKGROUND

The lack of a thematic map or portrayal model that could be easily deployed in the current generation of web map services (be they OGC or Google or ... ? ... services) has long been recognised as a problem in GeoSciML. At the Rome IWG meeting the group moved to develop a schema that defined GeoSciML compatible map layers for simple map services (meeting note <https://www.seegrid.csiro.au/twiki/bin/view/CGIModel/RomeF2FModelDesignMeetingNotes#14_Portrayal_classes_in_GeoSciML> , TWiki overview <https://www.seegrid.csiro.au/twiki/bin/view/CGIModel/GeoSciMLThematicView> ). Broadly speaking the intent is to promote: 
1.        a consistent interface to web map data; 
2.        the widespread us of controlled vocabularies in thematic mapping; 
3.        the ability to share thematic mapping tools such as SLDs between map services and clients to allow simple map query and display use cases ('show me all units coloured by their lithology', ' show me all units that contain sandstone'); 
4.        provide a very simple entry level to the GeoSciML world, introducing the concepts of mapping to community defined vocabularies and understanding the full GeoSciML model. 
The primary result of this work will be a GML application schema that conforms to level 0 of the Simple Features Profile for GML (SF). It is a denormalised view of GeoSciML that corresponds to a GIS layer (one record per geometry) and can be used for portrayal and thematic mapping purposes.

While it has been harmonized with GeoSciML (consistent naming conventions, broad mapping of properties) it is a schema in it own right. It  not a SF level 0 profile of GeoSciML, is not intended as a basis for setting up simple GeoSciML Web Feature Services, and is not intended as a simple query interface to GeoSciML. It is solely for representing geological features in simple map clients using simple map services.


REQUEST FOR COMMENT

An initial skeleton of a model has been compiled based on existing WMS layers (GeoScience Victoria and Arizona Geological Survey) and feedback from participants at the Rome meeting. Tables summarising the proposed layers have been posted here:
          https://www.seegrid.csiro.au/twiki/bin/view/CGIModel/GeoSciMLThematicViewModelDiscussion <https://www.seegrid.csiro.au/twiki/bin/view/CGIModel/GeoSciMLThematicViewModelDiscussion> 

We need feedback from a much broader group and invite interested parties to comment on the model and suggest changes where necessary. At the end of October a release candidate schema will be produced and tested as part of Testbed 4.

We look forward to your feedback.

Thanks

Alistair Ritchie
GEOSCIENCE VICTORIA | EARTH RESOURCES DIVISION
Department of Primary Industries | Melbourne, Victoria, Australia
Tel: +61 3 9658 4512 | Fax: +61 3 9658 4555 

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