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Dataset

 

Regional summaries from Arctic high-resolution sea ice-ocean modelling hindcasts (2008-2021)

Update Frequency: Not Planned
Latest Data Update: 2023-01-13
Status: Completed
Online Status: ONLINE
Publication State: Published
Publication Date: 2023-08-21
Download Stats: last 12 months
Dataset Size: 19 Files | 477GB
Abstract

Regional summaries from the high-resolution sea ice-ocean modelling ERA5JRA55-forced hindcasts (Japanese 55-year atmospheric analysis) were generated to analyse oceanic impacts on retreat of the Arctic sea-ice pack in the high Arctic and from areas of the Transpolar drift, north of Greenland and in the Fram Strait in the present climate. The model outputs span the Arctic Ocean proper and the sub-Arctic seas, covering the near-present climate period from 2008-2021 during which the largest sea ice changes have been observed.

The model configuration is Global Ocean and Sea Ice GO8p7, developed under the Joint Marine Modelling Programme (JMMP), a collaborative project between the National Oceanography Centre (NOC), British Antarctic Survey (BAS) and the Met Office. GO8p7 is based on NEMO v4.0 and the SI3 sea ice model and includes a package of modifications intending to address errors in the Southern Ocean, including a scale-dependent Gent & McWilliams parameterisation, partial slip lateral boundary conditions south of 50°S. and 4th-order horizontal tracer advection (Madec et al. 2019).

The present simulation was integrated with Japanese Reanalysis JRA55 v1.3-do from 1958 to 2021 (Tsujino et al., 2018). The model output has been validated against AMSR-E satellite sea-ice concentrations, as well as the CryoSat-2 and SMOS sea-ice thickness datasets. The monthly and 5-day averages of the key sea-ice and ocean fields for the pan-Arctic and Greenland regions were created and combined into 4-D files for easy data handling.

The model output has been validated against AMSR-E satellite sea-ice concentrations, as well as the CryoSat-2 and SMOS sea-ice thickness datasets. The monthly and 5-day averages of the key sea-ice and ocean fields for the pan-Arctic and Greenland regions were created and combined into 4-D files for easy data handling.

The model datasets were produced by National Oceanography Centre (NOC) scientists Dr Yevgeny Aksenov and Dr Stefanie Rynders, using the global model runs carried out by Dr Alex Megann. Dr Andrew Coward also assisted with data handling. The data were produced under Natural Environment Research Council (NERC) project PRE-MELT (grant references NE/T001399/1, NE/T000260/1, NE/T000546/1). The global model integrations were completed thanks to the funding from the National Environmental Research Council (NERC) national capability grant for the North Atlantic Climate System: Integrated study (ACSIS) NCLTS-M program (grant NE/N018044/1) (Megann et al., 2022a,b). Additional funding also came from NERC projects APEAR (grant reference NE/R012865/1) and CLASS (grant reference NE/R015953/1).

Citable as:  Aksenov, Y.; Megann, A.; Rynders, S.; Coward, A. (2023): Regional summaries from Arctic high-resolution sea ice-ocean modelling hindcasts (2008-2021). NERC British Oceanographic Data Centre, date of citation. https://catalogue.ceda.ac.uk/uuid/7668ea6b334841b0b7a06c0545664858
Abbreviation: Not defined
Keywords: Arctic Ocean, sea-ice, JRA55 v1.3-do, GO8p7, Fram Strait, CryoSat-2, SMOS, ARCRegiH

Details

Previous Info:
No news update for this record
Previously used record identifiers:
No related previous identifiers.
Access rules:
Public data: access to these data is available to both registered and non-registered users.
Use of these data is covered by the following licence: http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/. When using these data you must cite them correctly using the citation given on the CEDA Data Catalogue record.
Data lineage:

Model hindcasts were produced by scientists at the National Oceanography Centre (NOC), Southampton, UK. Outputs suitable for re-use were uploaded by the scientists to the Centre for Environmental Data Analysis (CEDA) ingestion area, where the British Oceanographic Data Centre (BODC) carried out ingestion process, creating catalogue records and making the data available for public download.
Data Quality:
Data as supplied to BODC - no additional quality checks performed
File Format:
Data are CF-compliant NetCDF formatted data files

Related Documents

 Megann, A.; Blaker, A.; Coward, A.; Guiavarc’h, C.; Storkey, D. (2022b): Model output from 1/12° global JRA55-forced integration of GO8p7 global ocean-sea ice model from 1958 to 2021. NERC British Oceanographic Data Centre, 20 October 2022. doi:10.5285/399b0f762a004657a411a9ea7203493a. http://dx.doi.org/10.5285/399b0f762a004657a411a9ea7203493a
 JRA-55 dataset: Tsujino, H., Urakawa, S., Nakano, H., Small, R.J., Kim, W.M., Yeager, S.G., Danabasoglu, G., Suzuki, T., Bamber, J. L., Bentsen, M., Boning, C., Bozec, A., Chassignet, E., Curchitser, E., Boeira Diasi, F., Durack, P.J., Griffies, S.M., Harada, Y., Ilicak, M., Josey, S.A., Kobayashi, C., Kobayashi, S., Komuro, Y., Large, W.G., Le Sommer, J., Marsland, S.J., Masina, S., Scheinert, M., Tomita, H., Valdivieso, M. & Yamazaki, D. (2018). JRA-55 based surface dataset for driving ocean-sea ice models (JRA55-do) Ocean Modelling, 130, 79-139 doi: 10.1016/j.ocemod.2018.07.002.
 NEMO v4.0: Madec, G., Bourdallé-Badie, R.; Chanut, J.; Clementi, E., Coward, A., Ethé, C., Iovino, D., Lea, D., Lévy, C., Lovato, T., Martin, T., Masson, S., Mocavero, S., Rousset, C., Storkey, D., Vancoppenolle, M., Müeller, S., Nurser, G., Bell, M., and Samson, G., 2019. NEMO ocean engine. Notes du Pole de Modélisation de l’Institut Pierre-Simon Laplace (IPSL) (27). doi: 10.5281/zenodo.3878122
 ACSIS Model output: Megann, A.; Blaker, A.; Coward, A.; Guiavarc’h, C.; Storkey, D. (2022a): Model output from 1/4° global JRA55-forced integration of GO8p7 global ocean-sea ice model from 1958 to 2021. NERC British Oceanographic Data Centre, 20 October 2022. doi:10.5285/e02c8424657846468c1ff3a5acd0b1ab. http://dx.doi.org/10.5285/e02c8424657846468c1ff3a5acd0b1ab

Process overview

  • var_id: sfdsi
  • long_name: Downward salt flux
  • units: 1e-3/m2/s
  • units: kg/m2/s
  • long_name: Evap minus Precip over ice
  • standard_name: evap_minus_precip_over_sea_ice
  • var_id: soemp_ice
  • units: kg/m2/s
  • long_name: Evap minus Precip over ocean
  • standard_name: evap_minus_precip_over_sea_water
  • var_id: soemp_oce
  • units: 1
  • standard_name: sea_ice_area_fraction
  • long_name: Ice fraction
  • var_id: soicecov
  • units: W/m2
  • long_name: Ice shelf heat content flux
  • var_id: sohfcisf
  • units: W/m2
  • var_id: sohflisf
  • long_name: Ice shelf latent heat flux
  • units: kg/m2/s
  • long_name: Ice shelf melting
  • var_id: sowflisf
  • units: m
  • standard_name: ocean_mixed_layer_thickness
  • long_name: Mixed Layer Depth interpolated
  • var_id: somxzint1
  • units: W/m2
  • long_name: Net Downward Heat Flux
  • standard_name: surface_downward_heat_flux_in_sea_water
  • var_id: hfds
  • units: kg/m2/s
  • long_name: Net Upward Water Flux
  • var_id: sowaflup
  • standard_name: water_flux_out_of_sea_ice_and_sea_water
  • units: kg/m2/s
  • standard_name: water_flux_into_sea_water_from_rivers
  • var_id: friver
  • long_name: River Runoffs
  • standard_name: sea_water_pressure_at_sea_floor
  • units: dbar
  • long_name: Sea Water Pressure at Sea Floor
  • var_id: botpres
  • units: W/m2
  • standard_name: downwelling_shortwave_flux_in_sea_water
  • var_id: rsdo
  • long_name: Shortwave Radiation 3D distribution
  • standard_name: snowfall_flux
  • units: kg/m2/s
  • long_name: Snow precipitation
  • var_id: snowpre
  • units: kg/m2/s
  • long_name: Surface Water Flux: Damping
  • standard_name: water_flux_out_of_sea_water_due_to_newtonian_relaxation
  • var_id: so_erp
  • units: m
  • standard_name: cell_thickness
  • var_id: thkcello
  • long_name: T-cell thickness
  • standard_name: precipitation_flux
  • units: kg/m2/s
  • long_name: Total precipitation
  • var_id: soprecip
  • units: m
  • standard_name: cell_thickness
  • var_id: thkcello
  • long_name: U-cell thickness
  • units: m/s
  • long_name: UU
  • standard_name: square_of_sea_water_x_velocity
  • var_id: u2o
  • units: m
  • standard_name: cell_thickness
  • var_id: thkcello
  • long_name: V-cell thickness
  • units: m/s
  • long_name: VV
  • standard_name: square_of_sea_water_y_velocity
  • var_id: v2o
  • units: m
  • long_name: Vertical T levels
  • var_id: deptht
  • units: m
  • long_name: Vertical U levels
  • var_id: depthu
  • units: m
  • long_name: Vertical V levels
  • var_id: depthv
  • units: kg/m2/s
  • var_id: fsitherm
  • long_name: Water flux due to freezing/melting
  • units: N/m2
  • standard_name: surface_downward_x_stress
  • long_name: Wind Stress along i-axis
  • var_id: tauuo
  • units: N/m2
  • standard_name: surface_downward_y_stress
  • long_name: Wind Stress along j-axis
  • var_id: tauvo
  • units: 1e-3
  • long_name: absolute salinity
  • standard_name: sea_water_absolute_salinity
  • var_id: so_abs
  • units: degC
  • standard_name: sea_water_conservative_temperature
  • long_name: conservative temperature
  • var_id: thetao_con
  • units: m
  • var_id: deptht_bounds
  • units: m
  • var_id: depthu_bounds
  • units: m
  • var_id: depthv_bounds
  • units: J/m2/s
  • var_id: berg_latent_heat_flux
  • long_name: icb heat flux to ocean due to melting latent heat
  • units: kg/m2/s
  • var_id: ficeberg
  • long_name: icb melt rate of icebergs
  • units: m/s
  • var_id: uo
  • standard_name: sea_water_x_velocity
  • long_name: ocean current along i-axis
  • units: m/s
  • var_id: vo
  • standard_name: sea_water_y_velocity
  • long_name: ocean current along j-axis
  • units: m/s
  • long_name: ocean surface current along i-axis
  • var_id: sozocrtx
  • units: m/s
  • long_name: ocean surface current along j-axis
  • var_id: somecrty
  • units: 0.001
  • long_name: sea bottom absolute salinity
  • var_id: sob_abs
  • units: degC
  • long_name: sea bottom conservative temperature
  • var_id: thetaob_con
  • units: 1e-3
  • long_name: sea surface absolute salinity
  • standard_name: sea_surface_absolute_salinity
  • var_id: sos_abs
  • units: degC
  • long_name: sea surface conservative temperature
  • standard_name: sea_surface_conservative_temperature
  • var_id: tos_con
  • units: m
  • var_id: zos
  • standard_name: sea_surface_height_above_geoid
  • long_name: sea surface height
  • units: m2
  • standard_name: square_of_sea_surface_height_above_geoid
  • var_id: zossq
  • long_name: square of sea surface height
  • units: N/m2
  • standard_name: surface_downward_x_stress
  • long_name: surface_downward_x_stress
  • var_id: tauuo
  • var_id: time_centered_bounds
  • var_id: time_counter_bounds

Co-ordinate Variables

  • units: degrees_north
  • standard_name: latitude
  • long_name: Latitude
  • var_id: nav_lat
  • units: degrees_east
  • standard_name: longitude
  • long_name: Longitude
  • var_id: nav_lon
  • standard_name: time
  • units: seconds
  • long_name: Time axis
  • var_id: time_counter
Coverage
Temporal Range
Start time:
2008-01-01T00:00:00
End time:
2021-12-31T23:59:59
Geographic Extent

 
90.0000°
  
-180.0000°
  
180.0000°
 
45.0000°
  
Related parties
Authors (4)
Publishers (1)
Funders (1)
Principal Investigators (1)