Exported Content



Portele, Clemens (interactive instruments GmbH)
Burggraf, David (Burggraf, David)

Group Description:

1. Geography Markup Language 3.3 SWG (GML SWG)


2. Purpose of this Standards Working Group

The purpose of the GML SWG is to revise the OpenGIS® Geography Markup Language (GML) Encoding Standard. The standard is also published by ISO as ISO 19136:2007.

GML in JPEG 2000 Interoperability Experiment

This Encoding Interoperability Experiment (IE) will implement a number of prototype GMLJP2 codecs based on the specification described in the OGC Discussion Paper "GML in JPEG 2000 for Geographic Imagery". The purpose of the IE will be to confirm that the specification will support the requirements of geospatially related imagery over the Internet, and to improve the specification if it does not support these requirements.

The IE will attempt to address some of the following experiments around the use of GML in JPEG 2000 for Geospatial Imagery:

GML in JPEG 2000 for Geographic Imagery Encoding

The OpenGIS® GML in JPEG 2000 for Geographic Imagery Encoding Standard defines the means by which the OpenGIS® Geography Markup Language (GML) Standard [http://www.opengeospatial.org/standards/gml] is used within JPEG 2000 [www.jpeg.org/jpeg2000/] images for geographic imagery. The standard also provides packaging mechanisms for including GML within JPEG 2000 data files and specific GML application schemas to support the encoding of images within JPEG 2000 data files. JPEG 2000 is a wavelet-based image compression standard that provides the ability to include XML data for description of the ...


1. Purpose of the Standards Working Group

The purpose of GMLJP2 v1.1 Standards Working Group is to move the existing GMLJP2 version 1.0.0 standard through a revision process. The SWG will process impacts to this standard from updates of dependent standards, address omissions from the initial standard, process comments from OWS5, and assess future ...

HDWG Forecasting IE


This interoperability experiment will advance the development of WaterML 2.0 and test its use in a forecasting context with various OGC service standards (SOS, SES, WFS, WMS and WCS). It will also contribute to a co-operation with the Met-Ocean domain working group. Where relevant to the forecasting context, it will contribute to the development and evaluation of a hydrology domain feature model and vocabularies, which are essential for interoperability in the hydrology domain, although these are not the main focus for the IE.

HDWG Groundwater 2 IE

This groundwater interoperability experiment (GW2IE) will develop and test the GroundWater Markup Language 2, by harmonizing and advancing existing modeling initiatives such as: GWML1, relevant EU-INSPIRE models (Geology-hydrogeology, Environmental monitoring facilities), GeoSciML, and others. It will produce an engineering report in preparation for movement to an OGC data specification subsequent to the GW2IE.

HDWG Groundwater IE



The GW IE was designed to: (1) test the use of both WaterML 2 and Groundwater ML (GWML) with the SOS and WFS OGC web services, respectively, (2) test compatibility with industry software clients, and (3) to facilitate sharing of massive volumes of sensor-based water level observations and related water-well features across the Canada and USA border.