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Brief description
Chlorophyll a is the most commonly used indicator of phytoplankton biomass and is a proxy for primary productivity in the marine environment. It is relatively simple and cost effective to measure when compared to phytoplankton abundance and is thus routinely included in many surveys. Here we collate 173,333 records of chlorophyll a collected since 1965 from Australian waters gathered from researchers on regular coastal monitoring surveys to long ocean voyages. This dataset concentrates on samples analysed using spectrophotometry, fluorometry and high performance liquid chromatography (HPLC). Here we collate all available chlorophyll a data from Australian waters, gathered from researchers, students, government bodies, state agencies, councils and databases, along with the associated metadata. The Australian Chlorophyll a Database is available through the Australian Ocean Data Network portal (AODN: https://portal.aodn.org.au/), the main repository for marine data in Australia. The Australian Chlorophyll a Database will be maintained and updated through the CSIRO data centre, with periodic updates sent to the AODN. A snapshot of the Australian Chlorophyll a Database at the time of this publication has been assigned a DOI and will be maintained in perpetuity by the AODN. These data can be used in isolation as an index of phytoplankton biomass or in combination with other data to provide insight into water quality, ecosystem state, and / or the relationships with other trophic levels such as zooplankton or fish. This metadata record was based on the following CSIRO metadata record: https://marlin.csiro.au/geonetwork/srv/eng/search?uuid=4c72fe3b-bddf-44da-a809-1791033a6ac5.Lineage
Maintenance and Update Frequency: asNeeded
Statement: The data sources are varied and the data does not belong to the custodian of this schema, so the quality of the data cannot be verified. Persons should refer to the record for each of the projects included for further information.
Statement: ATTRIBUTE STATEMENT: Field information for IMOS_ACD_DATA: Record_id - Unique record identifying number (Unique for each row) Project_id - Project identifying number (Unique for each project) Sample_id - Sample identifying number, may include more than one Chla reading Latitude - Latitude where specimen was found in decimal degrees Longitude - Longitude where the specimen was found in decimal degrees Location - Location of the sample Sample_time_UTC - Full sampling date/time in UTC Sample_year - Year in which sampling took place Sample_month - Month in which sampling took place, null if the date resolution is year Sample_day - Day on which sampling took place, null if the date resolution is month Date_resolution - The date resolution applicable to the project, i.e. year, month, day, time Sample_depth - Depth of a sample in metres Depth_comments - Comments relating specifically to the depth value Replicate - No of replicates Total_chla_ugl - chla value of sample in micro grams per litre (MV + DV chla for HPLC) Sampling_method - analysis method for cholorphyll a Field information for IMOS_ACD_METADATA: Project_id - Unique project identifying number (Unique for each row) Project_description - Short description of the project Custodian_details - Name and affiliation of the contributing author Acknowledgement - The acknowledgement for that project Location - Broad location of the sample Start_date - First sample date for the project End_date - Final sample date for the project No_records - The number of records for the project
Notes
CreditWe acknowledge the contributions from all collaborators and their institutions.
Created: 06 01 2017
Data time period: 1965-12-22 to 2017-03-20
text: uplimit=-10; downlimit=-1000
Subjects
Boats and Small Vessels |
CMAR Marine Plankton |
Concentration of chlorophyll-a per unit volume of the water body |
Continents | Antarctica |
Countries | Australia |
Countries | Indonesia |
Countries | New Caledonia |
Countries | New Zealand |
Countries | Papua New Guinea |
Countries | Solomon Islands |
Countries | Timor-Leste |
Countries | Vanuatu |
Earth Science | Oceans | Ocean Chemistry | Chlorophyll |
Fluorometers |
Global / Oceans | Indian Ocean |
Global / Oceans | Pacific Ocean |
Global / Oceans | Southern Ocean |
HPLC (High Performance Liquid Chromatography) |
Marine Features (Australia) | Bass Strait, TAS/VIC |
Marine Features (Australia) | Great Australian Bight, SA/WA |
Marine Features (Australia) | Great Barrier Reef, QLD |
National Reference Stations Sub-Facility, Integrated Marine Observing System (IMOS) |
Niskin Bottles |
Offshore Islands (Australia) | Macquarie Island |
Regional Seas | Arafura Sea |
Regional Seas | Coral Sea |
Regional Seas | Solomon Sea |
Regional Seas | Tasman Sea |
Regional Seas | Timor Sea |
Spectrophotometers |
States, Territories (Australia) | New South Wales |
States, Territories (Australia) | Northern Territory |
States, Territories (Australia) | Queensland |
States, Territories (Australia) | South Australia |
States, Territories (Australia) | Tasmania |
States, Territories (Australia) | Victoria |
States, Territories (Australia) | Western Australia |
oceans |
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Other Information
(Data paper in Scientific Data - Chlorophyll Database)
uri :
https://www.nature.com/articles/sdata201818
(OGC WFS help documentation)
Identifiers
- global : 3c42cb06-d153-450f-9e47-6a3ceaaf8d9b
