Project data management/OA-ICC

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The uptake of anthropogenic CO2 by the oceans leads to a rise in the oceanic partial pressure of CO2 (pCO2), a decrease in ocean pH (the so-called ocean acidification), and a decrease in ocean carbonate ion concentration. Numerous papers report the effects of ocean acidification on marine organisms and communities, but in inconsistent units or scales. Sometimes, data not relevant for the paper but possibly relevant for comparative studies are not included in the publications. Hence direct comparison of results of different studies has often been difficult.

In response to this problem, a data compilation on the biological response to ocean acidification was launched in 2008 by the EU projects EUR-OCEANS and EPOCA. This effort ended in 2012 with the end of EPOCA but is now resuming in the framework of the International Atomic Energy Agency (IAEA) project Ocean Acidification International Coordination Centre (OA-ICC).

What kind of data is included in the data compilation of the Ocean Acidification International Coordination Centre (OA-ICC)?

The OA-ICC data compilation includes data from published papers studying the biological response to ocean acidification. In order to be included in the compilation, the papers must contain information on at least two variables of the carbonate system as well as salinity and temperature. The carbonate chemistry for all data sets has been recalculated using the R package seacarb. All the datasets of the OA-ICC and the EPOCA/EUROCEANS compilation (2008- 2012) have been given the tag “Ocean Acidification International Coordinate Centre (OA-ICC)” in the data library PANGAEA® - Data Publisher for Earth & Environmental Science operated by Alfred Wegener Institute in Bremerhaven, Germany (shown under the Project table).

How to search the data compilation

Go to Data portal of the OA-ICC webpage or to PANGAEA® - Data Publisher for Earth & Environmental Science

Figure 1- Screenshot of simple search on the OA-ICC webpage

Simple search

Enter the title of papers, authors or the project name “OA-ICC” in the search field and click on the Search button to get a list of datasets. The simple search is operating like Google (detailed guidance is available in the “help” menu, see figure 1).

Figure 2- Screenshot of advanced search on the OA-ICC webpage

Advanced search

The results of the simple search can be refined by using the advance search. Click on the Advanced Search button (see figure 1) to enter the webpage of advance search. Datasets can be searched by Search terms, Temporal coverage and Geographic coverage (see figure 2). For example, if you would like to find the data from a particular paper, say Comeau et al (2012), 2 data sets (one non-relevant) will be found if “Comeau” and “2012” are entered as search terms in the basic search engine, whilst only 1 dataset will be found by entering “Comeau” in Anywhere in data description and “2012” in Citation on the Advance Search page.

Data description

Figure 3- Dataset example

Example: Yamamoto, S et al. (2012), doi:10.1594/PANGAEA.820200. See figure 3.

1. The DOI of the data set is given in the “Citation” field. If the registration of the DOI is not completed, “DOI registration in progress” will be mentioned. The reference and DOI of the paper can be found after “Supplement to”.

2. Information under the “Comment” field explains why and when the carbonate chemistry was recalculated by seacarb.

3. “Further detail” is the reference of the R package seacarb which is used to recalculate the carbonate chemistry.

4. If data were previously published in Pangaea or another database (e.g. BODC) with a DOI, the link to the original data is shown in the “Original version” field. If data were published without a DOI, the link to the original data is shown in the “Other version” field.

5. Seacarb calculation parameters are flagged by the method Calculated using seacarb after Nisumaa et al. (2010) and PI's name is the responsible Ocean Acidification Data Curator

Visualize and download data

1. Data can be shown on the web page by clicking View dataset as HTML.

2. Click Download dataset as tab-delimited text button and save the data file in local disk. The data file can be open using a text editor or any spreadsheet program such as Excel or OpenOffice.

3. The software Pan2Applic can be used to download many data sets at once. Detailed guidance of this tool is available here


Data management

PANGAEA® - Data Publisher for Earth & Environmental Science