European Directory of Marine Environmental Data (EDMED)

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General
Data set name

Dataset of water transparency measured by Secchi disk in the Baltic Sea and Gulf of Riga (since 1973)

Data holding centreLatvian Institute of Aquatic Ecology
CountryLatvia  Latvia
ProjectEffect of climate change on aquatic ecosystems in Latvia(KALME); LIMOD(LIMOD); Implementation of innovative ecotoxicological methods for identification of natural and anthropogenic pollution impact on Latvian territorial waters(HIDROTOX); Innovative approaches for marine biodiversity monitoring and assessment of conservation status of nature values in the Baltic Sea(MARMONI)
Time periodOngoing monitoring measurement of transparency by Secchi disk
OngoingYes
Geographical area

Territorial and economic waters of Latvia in the Baltic Sea and Gulf of Riga; A few stations in territorial and economic waters of Estonia in the Baltic sea and Gulf of Riga

Observations 
Parameters

Secchi disk depth

Description 
Summary

This dataset contains information on water transparency, as measured by Secchi disk, in the territorial and economic waters of Latvia and Estonia in the Baltic Sea and Gulf of Riga. The majority of the dataset consists of measurements from the Marine Monitoring Program since 1973. Additional existing data from monitoring and public projects are incorporated into this dataset. Measurements were performed by personnel from the Baltic Research Institute of Fishery of Latvia (BaltNIIRH) (1973 - 1989), Riga Hydrometeorological Centre of Latvia (1989 - 1995) and Latvian Institute of Aquatic Ecology (since 1995). Measurements were done onboard research or naval vessels or self-propelled boats during daylight hours. Data are used for environmental status monitoring and assessment of eutrophication in the Baltic Sea and Gulf of Riga.

OriginatorsBaltic Research Institute of Fishery of Latvia (BaltNIIRH)
Latvian Institute of Aquatic Ecology
Riga Hydrometeorological Centre of Latvia
Availability 
OrganisationLatvian Institute of Aquatic Ecology
AvailabilitySeaDataNet licence
ContactDagnija Fedorovica
Address

Latvian Institute of Aquatic Ecology
Voleru str.4
Riga

LV-1007
Latvia

Telephone+371 67601995, +371 67614840
Facsimile+371 67601995
Emaildagnija.fedorovica@lhei.lv
Administration 
Collating centreLatvian Institute of Aquatic Ecology
Local identifierLV_698_SCC
Global identifier6118
Last revised2015-01-13