Specialized information system geophysics
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|---|---|
| Internet-based map application | |
| operator | Leibniz Institute for Applied Geophysics (LIAG) |
| editorial staff | Leibniz Institute for Applied Geophysics (LIAG) |
| Registration | Optional |
| On-line | 2002 |
| https://www.fis-geophysik.de | |
The Germany-wide geophysics information system (FIS-Geophysik, FIS-GP) of the Leibniz Institute for Applied Geophysics (LIAG) is used to store and provide measurement and evaluation data (as well as the associated metadata ) of various geophysical methods. In addition to data from the LIAG, data from partner institutions (companies, authorities, universities and research institutes) are also stored in FIS Geophysics. In addition to a form-based research, the geophysical data is made available via a map application . The web portal can be accessed freely via the Internet and is constantly updated.
history
Under the leadership of the former Institute for Geoscientific Community Tasks (GGA), today LIAG, a working group from the State Geological Services of Germany (SGD) carried out a demand and availability analysis for geophysical data from various methods in the mid-1990s. This analysis attested a significant need with only limited digital availability at the time, ie a considerable need for action with regard to the storage and provision of this data.
In the GGA Institute, when setting up the geophysics specialist information system, the main focus was initially on borehole geophysics , the potential methods and the temperature measurements of the subsurface due to the data situation . A database structure was developed and implemented for data storage . Since 1998 the digitization, homogenization and the import of the then existing and newly added data into the database has been carried out . The aim was or is to build up data stocks that are as extensive as possible across Germany. The methods of magnetics , gravimetry , underground temperatures and aerogeophysics are particularly promising.
In addition to a graphical user interface for internal data management, a web portal for researching data for the geophysical community was developed and activated in 2002.
Since then, the FIS-Geophysics has been further developed and maintained both functionally and in terms of content in cooperation with partner institutions, especially the Federal Institute for Geosciences and Natural Resources (BGR) and the State Office for Mining, Energy and Geology Lower Saxony (LBEG). In particular, it was expanded to include further methods geoelectrics , aerogeophysics, petrophysics and airborne transient electromagnetics = SkyTEM.
The LIAG was involved in the EU project GEOMIND (Geophysical Multilingual Internet-Driven Information Service) from 2006 to 2008 with the contribution of FIS-Geophysics. As part of this project, a European geodata portal was set up through which the content of national geophysical information systems can be accessed across borders.
Architecture / structure
The IT architecture of the overall system consists of a graphical user interface for data management, a web portal with form-based research and map application and a database, whereby these are divided into a general part (superstructure) with infrastructure and metadata of all methods and several subsystems (borehole geophysics , Geoelectrics, gravimetry, magnetics, temperature measurements of the medium and deep subsurface, seismics , vertical seismic profiling = VSP, aerogeophysics, petrophysics and terrestrial or airborne transient electromagnetics = TEM or SkyTEM) is subdivided with their measurement and evaluation data.
The FIS-Geophysik web portal consists of the components FIS-GP-Search and FIS-GP-Viewer. With FIS-GP-Search , a menu and form interface is available for / for attribute-oriented research, printing, visualization, downloading, data analysis, etc. to disposal. FIS-GP-Viewer offers similar possibilities, but the research here is map-oriented with selectable map backgrounds and geographic reference systems.
Database
| Subsystem | Data |
|---|---|
| Borehole geophysics | 2,114 measurement logs from 536 holes and 607 composite logs from 607 holes |
| 1D geoelectrics | 21,591 Schlumberger soundings (max. 15 km display) and 5,092 evaluations |
| 2D geoelectrics | 61 profiles and 30 reports |
| Gravimetry | 355,989 gravity measurements |
| Magnetics | 1,344,295 measuring points (mainly from aeromagnetics) |
| Underground temperatures | 66,591 subsurface temperatures from 11,273 boreholes (up to 9,100 m depth) |
| 2D seismics | 139 seismic profiles and 300 evaluations |
| 3D seismics | 1 seismic measurement |
| Vertical seismic profiles | 19 VSP measurements and 51 evaluations |
| Aerogeophysics | 18 measuring areas with 1,773 airlines and 917,308 measuring points (methods HEM, HMG and HRD) |
| Petrophysics | 8,601 measurements on 2,009 samples from 165 holes |
| Transient electromagnetics | 3 campaigns with 56 measurements and 112 evaluations |
| SkyTEM | 6 areas with 909 profiles, 175,210 points and 1,898 evaluations |
As of April 2020
It is worth mentioning that the underground temperatures subsystem is a unique collection of measured and corrected temperature data in Germany. This subsystem is an important data source for the Geothermal Information System Germany (GeotIS) also operated by the LIAG .
Data access
Integrated rights management allows differentiated access for the geophysical community, taking into account data confidentiality. It is possible to register personally as a user or to use a guest account. When logging on via the guest account, sensitive information (especially measured values) of protected data objects is hidden. Rights are granted on the basis of the institution to which the user belongs or on the basis of individual collaborations, e.g. B. Master and PhD theses.
Functionalities
- Method-specific search for geophysical measurement data
- Geographical search for geophysical measurement data
- Map display of geological layers underground
- Map display of the Bouguer anomalies in Germany
- Map display of the underground temperature models in Germany
- Export of 2-D grids
- Web services ( map and feature services ) for all subsystems that can be integrated into other geoportals
- Excel-based data acquisition program for the recording and structuring of external petrophysical data, also by external data suppliers
- Provision of diagrams and XML schemas for all subsystems
- Coordinate transformation program
literature
- Helmut Rodemann, Rüdiger Schulz: Specialized information system geophysics - data inventory and data requirements analysis. Report of the Ad-hoc AG FIS Geophysics . In: Geological Yearbook series G . G 52, no. 5 , 1998, pp. 1-32 ( [1] ).
- Klaus Kühne, Andreas-Alexander Maul, Lothar Gorling: Development of a specialist information system for geophysics . In: Journal of Applied Geology - Focus: Tone . tape 49 , no. 2 , 2003, p. 48-53 ( [2] ).
- Klaus Kühne: Geophysics online - the specialist information system for geophysics . In: German Geophysical Society (DGG) . March 1, 2005, ISSN 0934-6554 , p. 23-26 ( [3] [PDF]).
- Klaus Kühne: The geophysics information system and its use via the Internet . In: Broder Merkel, Helmut Schaeben, Christian Wolkersdorfer, Andrea Hasche-Berger (eds.): Proceedings volume on the workshops at the Geological Institute of the TU Bergakademie Freiberg . tape 1 . Academic Bookshop, 2006, ISSN 1433-1284 , p. 27-31 ( [4] [PDF]).
- Klaus Kühne, Lothar Gorling, Thomas Günther, Christian Rücker: WebBERT - A web-based geoelectrical inversion service in the specialist information system geophysics . In: German Geophysical Society (DGG) . 2014, ISSN 0934-6554 , p. 21-26 ( [5] [PDF]).
- René Kahnt, Aron Gabriel, Carolin Seelig, Achim Freund, Antje Homilius: Specialized Information System Geophysics . In: Umweltbundesamt (Ed.): Unterirdische Raumplanung - Proposals for environmental protection to improve the surface and underground information bases, to design the planning instruments and to find sustainable solutions to conflicts of use. Subproject 1: Geological data . 2015, p. 133-137 ( [6] [PDF]).
Web links
Individual evidence
- ↑ Data needs analysis of the Ad-hoc AG FIS Geophysics. H. Rodemann report, June 1996
- ↑ GEOMIND - Specifications of standards for digital geophysical content. Publication László Sőrés, July 2007
- ↑ Deep geothermal energy - basics and possible uses in Germany. LIAG brochure, 2012
- ↑ A new compilation of Bouguer anomalies in Germany - a brief summary of experiences and results. Abstracts from the gravimetrical workshop "Bouguer anomaly - what kind of puzzle it is ?, Gerald Gabriel, Peter Skiba, Bratislava October 2012, p. 9
- ↑ Subsurface temperature distribution in Germany. Article in Geothermics, Thorsten Agemar, Rüdiger Schellschmidt, Rüdiger Schulz, October 2012