SAGA stands for System for Automated Geoscientific Analyses. SAGA GIS has been developed by a small group of
developers primarily based in Germany. Most past and current SAGA developments come from the team around J.
Böhner and O. Conrad, both are now working at the Institute of Geography, Section for Physical Geography,
Klimacampus and University of Hamburg, Germany.
The System for Automated Geoscientific Analyses (SAGA) is an open source geographic information
system (GIS), mainly licensed under the GNU General Public License. Since its first release in
2004, SAGA has rapidly developed from a specialized tool for digital terrain analysis to a
comprehensive and globally established GIS platform for scientific analysis and modeling. SAGA
is coded in C++ in an object oriented design and runs under several operating systems including
Windows and Linux. Key functional features of the modular software architecture comprise an
application programming interface for the development and implementation of new geoscientific
methods, a user friendly graphical user interface with many visualization options, a command
line interpreter, and interfaces to interpreted languages like R and Python. The current version
2.1.4 offers more than 600 tools, which are implemented in dynamically loadable libraries or
shared objects and represent the broad scopes of SAGA in numerous fields of geoscientific
endeavor and beyond. In this paper, we inform about the system's architecture, functionality,
and its current state of development and implementation. Furthermore, we highlight the wide
spectrum of scientific applications of SAGA in a review of published studies, with special
emphasis on the core application areas digital terrain analysis, geomorphology, soil science,
climatology and meteorology, as well as remote sensing.
We would like to thank SAGA development team around J. Böhner and O. Conrad for their contributions to the code and the documentation.Reference
 Conrad, O., Bechtel, B., Bock, M., Dietrich, H., Fischer, E., Gerlitz, L., Wehberg, J., Wichmann, V., and Böhner, J. (2015): System for Automated Geoscientific Analyses (SAGA) v. 2.1.4, Geosci. Model Dev., 8, 1991-2007, doi:10.5194/gmd-8-1991-2015.
 SAGA GIS. https://sourceforge.net/projects/saga-gis/
Facing the scientific development of geographic information in the new era, in order to surmount the limitation of platforms, solve the heterogeneity of spatial information, complete the interoperability between different geographic information system platforms, and provide various services of geographic information quickly, accurately and efficiently, it becomes more and more important to establish GIS services under the open network environment.Based on the open source software SAGA(System for Automated Geoscientific Analyses) GIS, through source code analysis, model preparation and model publish, this paper establishes an online geographic information analysis platform.Try →