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  • 1
    Publication Date: 2023-01-30
    Description: These data are outputs from climate simulations carried out using HadGEM3-GC3.1 described in the associated journal article. The three simulations that constitute the STANDARD ensemble described in the article are u-as371, u-as372, u-as373, and the three simulations that comprise the GREASE ensemble in the article are labelled here as u-bj941, u-bn121 and u-bn122. Outputs from the sea ice and ocean components of the model are archived here separately (labelled '_ice' and '_ocean'). These data were produced by University of Otago, New Zealand, in collaboration with the UK Met Office for a project funded by the New Zealand Deep South National Science Challenge using the Monsoon system, a collaborative facility supplied under the Joint Weather and Climate Research Programme, a strategic partnership between the Met Office and the Natural Environment Research Council.
    Keywords: climate modeling; File format; File name; File size; HadGEM3-GC3.1; Polar; Sea ice; Uniform resource locator/link to file
    Type: Dataset
    Format: text/tab-separated-values, 48 data points
    Location Call Number Limitation Availability
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  • 2
    Publication Date: 2023-05-12
    Keywords: Calculated; DATE/TIME; Laptev Sea Coast, Russia; LaptevSeaReg; Sea ice production
    Type: Dataset
    Format: text/tab-separated-values, 26842 data points
    Location Call Number Limitation Availability
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  • 3
    Publication Date: 2023-05-12
    Keywords: Calculated; DATE/TIME; Laptev Sea Coast, Russia; LaptevSeaReg; Polynya area
    Type: Dataset
    Format: text/tab-separated-values, 28095 data points
    Location Call Number Limitation Availability
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  • 4
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    PANGAEA
    In:  Supplement to: Willmes, Sascha; Adams, Susanne; Schröder, David; Heinemann, Günther (2011): Spatio-temporal variability of polynya dynamics and ice production in the Laptev Sea between the winters of 1979/80 and 2007/08. Polar Research, 30, 5971, https://doi.org/10.3402/polar.v30i0.5971
    Publication Date: 2023-05-12
    Description: Polynyas in the Laptev Sea are examined with respect to recurrence and interannual wintertime ice production.We use a polynya classification method based on passive microwave satellite data to derive daily polynya area from long-term sea-ice concentrations. This provides insight into the spatial and temporal variability of open-water and thin-ice regions on the Laptev Sea Shelf. Using thermal infrared satellite data to derive an empirical thin-ice distribution within the thickness range from 0 to 20 cm, we calculate daily average surface heat loss and the resulting wintertime ice formation within the Laptev Sea polynyas between 1979 and 2008 using reanalysis data supplied by the National Centers for Environmental Prediction, USA, as atmospheric forcing. Results indicate that previous studies significantly overestimate the contribution of polynyas to the ice production in the Laptev Sea. Average wintertime ice production in polynyas amounts to approximately 55 km3 ± 27% and is mostly determined by the polynya area, wind speed and associated large-scale circulation patterns. No trend in ice production could be detected in the period from 1979/80 to 2007/08.
    Keywords: Laptev Sea Coast, Russia; LaptevSeaReg
    Type: Dataset
    Format: application/zip, 2 datasets
    Location Call Number Limitation Availability
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