DAS (Data Assimilation System) is a computer software that has been developed as a tool to query and analyze hydrographic and chemical data from the Baltic Sea. It has primarily been interfaced to a database, called BED (Baltic Environmental Database) maintained at the Baltic Nest Institute.
Aim and use of DAS
The primary objectives for DAS is to:
- Extract data (salt, temperature, nutrients, oxygen & chlorophyll) for specific time period and regions of the Baltic. These data can then be used to:
- Plot distribution of stations and no of observations (in order to evaluate if the sampling frequency is sufficient for further analyses).
- Interpolate. The observations are used to calculate data for each grid cell of a 3D grid with a user-specified resolution.
- Calculate from 3D fields such integral characteristics as total amounts, as well as areas and volumes of the sea occupied by waters with used-defined properties.
Access to DAS
DAS is accessible both locally and via the Internet, but it can also be used against local databases, generated by the user.
Read more about DAS and how to access it here.