Nest

The decision support system Nest was initially developed within the MISTRA-funded MARE research program, which was completed in 2007. Nest was then successfully used for the development of the Eutrophication segment of the HELCOM Baltic Sea Action Plan, where nutrient load reductions needed to reach a healthy Baltic Sea were calculated, as were the allocations between countries. Nest is also used in many research programs. The maintenance and support of Nest has continued within the Baltic Nest Institute at Stockholm University Baltic Sea Centre. Documentation:

2024-03-26: New version nest-2403.zip:

Fixed a bug which disabled an Expert mode.

2023-08-02: New version nest-2308.zip:

Cost minimisation model is outdated and no longer available.

2023-05-15: New version nest-2305.zip:

Added access to the EMEP MSC-W modelled air concentrations and depositions data for the period 1990 - 2020 (EMEP Status Report 1/2022)
Data produced by EMEP/MSC-W are licensed under Norwegian license for public data (NLOD) and Creative Commons 4.0 BY International. Credit should be given to The Norwegian Meteorological institute, shortened "MET Norway", as the source of data. Some suggestions: "Data from The Norwegian Meteorological Institute", "Based on data from MET Norway". https://www.emep.int/mscw/mscw_moddata.html

2023-02-13: New version nest-2302.zip:

Fixed a problem to access the legacy EMEP atmospheric data.

2022-06-13: New version nest-2206.zip:

This version uses secure protocol to communicate with the distributed modules.

2022-02-05:

Baltic Sea > BALTSEM is updated to the most recent version 9.5 with Redfield ratios and separated O2 and H2S (Redfied_H2S). Met-forcing for the Hindcast and Reconstruction simulations are also extended to 2021.

2021-08-20:

Atmosphere > Get EMEP data: Obtaining of annual time series under a mouse click is disabled during integral deposition calculation.

2021-07-12:

For consistancy reasons, all maps are shown in orthographic projection.
Added zoom buttons (+ -) in the right low corner of the main frame.

2021-07-07:

EMEP data: added a new map layer WISE: Large lakes (area > 500km2) provided by European Environment Agency. See WISE Large rivers and large lakes.

2021-07-01: provides online access to the EMEP MSC-W modelled air concentrations and depositions provided by the Norwegian Meteorological institute, see https://emep.int/mscw/mscw_moddata.html

2021-05-02: SANBALT: added two load scenarios based on PLC-6 (2008-2012) and PLC-7 (2013-2017). Nest software should be reinstalled

2021-04-18: Baltsem model is updated to version 9.4 and Nest software should be reinstalled