Geomatics and survey
Download the geomatics and survey capability statement (PDF 36kb)
The term geomatics covers all aspects of the collection, processing and interpretation and presentation of spatial information. The range of services offered by Museum of London Archaeology Service (MoLAS) falls into three principal categories: surveying, Computer-Aided Design (CAD) and Geographical Information Systems (GIS).
Surveying
Survey work includes the implementation and maintenance of control networks and project grids, and the geo-referencing of captured data in relation to both project specific coordinate systems, and to Ordnance Survey National Grid.
Surveyors also carry out the rapid capture of digital archaeological and topographic data on site, using Global Positioning System (GPS) and total stations interfaced with data loggers and pen computers to produce real-time results. Three-dimensional standing building and monument survey uses state-of-the-art reflectorless instruments or laser scanners where necessary.
Computer-Aided Design
Computer-Aided Design work at MoLAS includes mapping site locations onto OS digital data, integration of engineering and architectural scheme proposals with existing digital surveys, reconstruction of plans and elevations from measured building survey data, including digitisation from rectified photography, historic map regression analysis, and the production of site plans for publication, client reports and research archives.
Computer-Aided Design is also extensively used to prepare datasets for use in Geographical Information Systems, for contour mapping, Digital Terrain Modelling and 3D deposit modelling.
Geographical Information Systems
MoLAS Geographical Information Systems work links spatial information to finds, environmental and stratigraphic data, and allows inter- and intra-site cross referencing and interrogation, and the statistical analysis of spatial data sets and artefact distribution patterns.
Thematic and landscape analysis is also referenced to heritage, environmental, geological, geo-archaeological, hydrological and topographic data sets. Geographical Information Systems is also used for 3D landscape contour, surface and deposit modelling and analysis. MoLAS is able to create bespoke Geographical Information Systems projects integrating diverse datasets, for monument conservation and heritage management planning.
High quality survey
MoLAS understands the importance of high quality survey, spatial and location data in the successful delivery of project requirements, employing a dedicated team of staff experienced in survey and spatial data processing.
The Geomatics team is responsible for ensuring that all MoLAS field projects are accurately geo-referenced and works with excavation staff to provide a high quality and affordable service. In association with GeoQuest Associates MoLAS geomaticians also provide a fully integrated Archaeomagnetic Dating service to clients.
See our geomatics section