Erken monitoring
| Name | Description | Coordinates WGS 84 | |
| latitude | longitude | ||
| Malma islet. Climate station | Automatic monitoring (Hourly & daily. 1988-Now). Weather station (Air temperature; humidity; wind speed, wind vector; wind direction; rain. Wind measurements every 10 min). Light period: global radiation; PAR; Day length. Water level | 59,83909 | 18,629558 |
| Malma islet. Water quality station | Automatic monitoring. Delayed Fluorescence Spectroscope: Biomass; Composition; PI curve | 59,83909 | 18,629558 |
| Malma islet. Water temperature | Automatic monitoring (Hourly & Daily1988-Now): 3 depth temperature (-1, -3, -15m) | 59,83909 | 18,629558 |
| Erken inflow (Kristineholm) | Automatic monitoring (Hourly) Discharge, water temperature, CDOM (fluorometer) & turbidity (transmissometer, 660 nm) | 59,85450 | 18,473417 |
| Erken outflow | Automatic monitoring: Discharge | 59,85061 | 18,70307 |
| Float Station | Automating monitoring during ice free period (1988-Now). Wind (High frequency, 10 min, hourly)& Water temperature (30 min, every 0.5 m till 15m depth) | 59,84297 | 18,635433 |
| Profiler Station | Automatic monitoring. (July 2014 - ) YSI EXO2 Sonde: GPS, Temperature, conductivity, pH, ORP, TDS, salinity, barometric pressure, depth, dissolved oxygen, turbidity, fDOM, total algae (Chl & BGA-PC) | 59,84530 | 18,624217 |
| Weather Station | Svanberga SMHI. Automatic monitoring. Weather station (Air temperature; humidity; wind speed, wind vector; wind direction. Wind measurements every 10 min). | 59,83232 | 18,634817 |
| Bojen (Buoy) (0-20m) | Manual Measurements. Manual sampling zooplankton-phytoplankton; * Manual sampling water program in Lake Erken: pH; Temp; Conductivity; DO; Secchi depth; Colour visual System; Alkalinity; Filtered & Unfiltered Abs; Turbidity; Suspended solids; Loss on ignition; P; N; Si; Chla | 59,84029 | 18,625827 |
| Norr Malma, inlet 1 | * Manual sampling stream water program: pH; Temp; Conductivity; DO; Colour visual System; Alkalinity; Filtered & Unfiltered Abs; Turbidity; Suspended solids; Loss on ignition; P; N; Si; TOC | 59,83575 | 18,647467 |
| Stampån, inlet 2 | * Manual sampling stream water program: pH; Temp; Conductivity; DO; Colour visual System; Alkalinity; Filtered & Unfiltered Abs; Turbidity; Suspended solids; Loss on ignition; P; N; Si; TOC | 59,85880 | 18,606417 |
| Kristineholm inlet 3 | * Manual sampling stream water program: pH; Temp; Conductivity; DO; Colour visual System; Alkalinity; Filtered & Unfiltered Abs; Turbidity; Suspended solids; Loss on ignition; P; N; Si; TOC | 59,85450 | 18,473417 |
| Slumsviken, inlet 4 | * Manual sampling stream water program: pH; Temp; Conductivity; DO; Colour visual System; Alkalinity; Filtered & Unfiltered Abs; Turbidity; Suspended solids; Loss on ignition; P; N; Si; TOC | 59,84367 | 18,472917 |
| Fyringen, inlet 5 | * Manual sampling stream water program: pH; Temp; Conductivity; DO; Colour visual System; Alkalinity; Filtered & Unfiltered Abs; Turbidity; Suspended solids; Loss on ignition; P; N; Si; TOC | 59,82682 | 18,507467 |
| Utloppet, outlet 6 | * Manual sampling stream water program: pH; Temp; Conductivity; DO; Colour visual System; Alkalinity; Filtered & Unfiltered Abs; Turbidity; Suspended solids; Loss on ignition; P; N; Si; TOC | 59,85520 | 18,675300 |
| Norr Järsö outlet 7 | * Manual sampling stream water program: pH; Temp; Conductivity; DO; Colour visual System; Alkalinity; Filtered & Unfiltered Abs; Turbidity; Suspended solids; Loss on ignition; P; N; Si; TOC | 59,85450 | 18,654550 |