Journal cover Journal topic
Earth System Science Data The Data Publishing Journal
doi:10.5194/essd-2016-53
© Author(s) 2016. This work is distributed
under the Creative Commons Attribution 3.0 License.
 
01 Nov 2016
Review status
A revision of this discussion paper was accepted for the journal Earth System Science Data (ESSD) and is expected to appear here in due course.
The Sub-Polar Gyre Index – a community data set for application in fisheries and environment research
Barbara Berx1 and Mark R. Payne2 1Marine Scotland Science, 375 Victoria Road, Aberdeen, AB11 9DB, UK
2Centre for Ocean Life, Technical University of Denmark, National Institute of Aquatic Resources, 2920 Charlottenlund, Denmark
Abstract. Scientific interest in the sub-polar gyre of the North Atlantic Ocean has increased in recent years. The sub-polar gyre has contracted and weakened, and changes in circulation pathways have been linked to changes in marine ecosystem productivity. To aid fisheries and environmental scientists, we here present a time series of the Sub-Polar Gyre Index (SPG-I) based on monthly mean maps of sea surface height. The established definition of the SPG-I is applied, and the first EOF and PC are presented. Sensitivity to the spatial domain and time series length are explored, but found not to be important factors. Our time series compares well with indices presented previously. The SPG-I time series is freely available online (doi:10.7489/1806-1) and we invite the community to access, apply and publish studies using this index time series.

Citation: Berx, B. and Payne, M. R.: The Sub-Polar Gyre Index – a community data set for application in fisheries and environment research, Earth Syst. Sci. Data Discuss., doi:10.5194/essd-2016-53, in review, 2016.
Barbara Berx and Mark R. Payne

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Sub-Polar Gyre Index
B. Berx and M. Payne
doi:10.7489/1806-1
Barbara Berx and Mark R. Payne

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