Chlorophyll-a weekly composite for the Baltic Sea 2003-2011

Satellite remote sensing is used to monitor the chlorophyll-a (ug/l) of surface water in the Baltic Sea during the open water season from April to October. Chlorophyll-a (chl-a) represents the quantity of algae in the water but not directly the amount of cyanobacterium. A chlorophyll-a weekly composite calculated in the Finnish Environment Institute (SYKE) is a pixel-wise weekly average chl-a concentration of the past week or - if no more good images are available - the best image of the past week. Envisat MERIS (Medium Resolution Imaging Spectrometer) 3rd Reprocessing data has been processed to chl-a concentrations using FUB (Freie University of Berlin) algorithm. The dataset covers years 2003-2011. The spatial resolution is 300 meters.

    Suomen ympäristökeskuksessa (SYKE) seurataan satelliittikuvilta Itämeren a-klorofyllipitoisuutta (ug/l) sulan veden aikaan. A-klorofyllin avulla voidaan arvioida levän määrää vedessä. Se on myös keskeinen tekijä veden rehevyystason arvioinnissa. A-klorofyllin määrä on laskettu Envisat MERIS (Medium Resolution Imaging Spectrometer) -instrumentin 3rd Reprocessing -datasta käyttäen FUB (Freie University of Berlin) -vedenlaatuprosessoria. A-klorofyllin viikkokomposiitti sisältää pikselikohtaisen keskiarvon kyseisen viikon havannoista tai viikon ainoan kuvan. Aineisto koostuu vuosien 2003-2011 viikkokomposiiteista. Kuvien maastoerotuskyky on 300 metriä. Aineisto kuuluu SYKEn avoimiin aineistoihin (CC BY 4.0).

Data and Resources

This dataset has no data

Additional Info

Field Value
Author Finnish Environment Intitute (SYKE)
Maintainer Finnish Environment Intitute (SYKE)
Last Updated January 4, 2019, 18:07 (CET)
Created January 4, 2019, 18:07 (CET)
access_constraints []
availability Dataset is available at http://www.syke.fi/avointieto
bbox-east-long 30.2995
bbox-north-lat 66.0305
bbox-south-lat 54.0005
bbox-west-long 14.6995
contact-email eotuki.syke@ymparisto.fi
coupled-resource []
dataset-reference-date [{"type": "revision", "value": "2013-11-21"}]
frequency-of-update
guid
licence ["\n\t\t\t\tCreative Commons BY 4.0 International, more information: http://wwwi4.ymparisto.fi/i4/eng/products/info/syke_disclaimer.html\n\t\t\t"]
metadata-date 2016-02-02
metadata-language zxx
progress
resource-type dataset
resource_modified 2013-11-21
responsible-party [{"name": "Finnish Environment Intitute (SYKE)", "roles": ["owner"]}]
spatial {"type": "Polygon", "coordinates": [[[14.6995, 54.0005], [30.2995, 54.0005], [30.2995, 66.0305], [14.6995, 66.0305], [14.6995, 54.0005]]]}
spatial-data-service-type
spatial-reference-system 4326
spatial_harvester true