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Circumpolar Flaw Lead (CFL) Photosynthesis-Irradiance Experiments



The objective of the Circumpolar Flaw Lead (CFL) project is to examine how physical changes affect biological processes within the flaw lead. The CFL system is formed when the central pack ice (which is mobile) moves away from coastal fast ice, opening a flaw lead. The CFL forms in the fall and continues as thin ice or open water throughout the winter. The flaw lead is circumpolar, with recurrent and interconnected polynyas occurring throughout the Arctic. The overarching objectives of the CFL project were to contrast the physical and biological systems of the flaw lead open water and thin ice to the adjacent landfast ice cover. The system will be studied throughout its yearly cycle, to determine the effects of global warming.

This data set contains results of photosynthesis-irradiance experiments. This dataset has the data formatted as an Excel document and as a CSV document (delimited by tabs and double quotes).

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Additional information

  • 1.0 (2012-01-09)
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Related projects
Spatial Type unknown
Frequency hourly
Progress completed
Language English
Grant Code ARC-0731524
ISO Topic Categories
  • climatologyMeteorologyAtmosphere
GCMD Science Keywords Expand keywords
Related links

Temporal coverage

Begin datetime 2008-06-08 00:00:00
End datetime 2008-07-04 00:00:00

Spatial coverage

Map data from IBCSO, IBCAO, and Global Topography.

Maximum (North) Latitude: 74.00, Minimum (South) Latitude: 70.00
Minimum (West) Longitude: -140.00, Maximum (East) Longitude: -125.00

Primary point of contact information

Kevin R. Arrigo <>

Additional contact information


Arrigo, K. 2012. Circumpolar Flaw Lead (CFL) Photosynthesis-Irradiance Experiments. Version 1.0. UCAR/NCAR - Earth Observing Laboratory. Accessed 15 Jul 2024.

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