Dataset
Stratospheric Nudging And Predictable Surface Impacts (SNAPSI): Reference state data
Abstract
Reference state data derived from the European Centre for Medium-Range Weather Forecasts (ECMWF) ERA5 reanalysis for the nudging experiments of the Stratospheric Nudging And Predictable Surface Impacts (SNAPSI) project.
These reference states are used to nudge the stratosphere towards a specified evolution in the ensemble forecasts carried out by the SNAPSI project.
The data contain:
(a) lightly processed horizontal winds and temperatures from ERA5 spanning three case studies of sudden stratospheric warmings from 2018 to 2019 and
(b) climatological horizontal winds and temperatures.
Details
| Previous Info: |
No news update for this record
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| Previously used record identifiers: |
No related previous identifiers.
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| 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://creativecommons.org/licenses/by/4.0/. When using these data you must cite them correctly using the citation given on the CEDA Data Catalogue record. |
| Data lineage: |
Data were produced by the project team and supplied for archiving at the Centre for Environmental Data Analysis (CEDA). |
| Data Quality: |
Quality control checks performed at CEDA confirmed that the data meets the SNAPSI metadata requirements.
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| File Format: |
netCDF
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Related Documents
Citations: 1
The following citations have been automatically harvested from external sources associated with this resource where DOI tracking is possible. As such some citations may be missing from this list whilst others may not be accurate. Please contact the helpdesk to raise any issues to help refine these citation trackings.
| Hitchcock, P., Butler, A., Charlton-Perez, A., Garfinkel, C. I., Stockdale, T., Anstey, J., Mitchell, D., Domeisen, D. I. V., Wu, T., Lu, Y., Mastrangelo, D., Malguzzi, P., Lin, H., Muncaster, R., Merryfield, B., Sigmond, M., Xiang, B., Jia, L., Hyun, Y.-K., ⦠Hendon, H. (2022). Stratospheric Nudging And Predictable Surface Impacts (SNAPSI): a protocol for investigating the role of stratospheric polar vortex disturbances in subseasonal to seasonal forecasts. Geoscientific Model Development, 15(13), 5073â5092. https://doi.org/10.5194/gmd-15-5073-2022 |
Process overview
| Title | ECMWF ERA5 Re-analysis Model deployed on ECMWF Computer |
| Abstract | This computation involved: ECMWF ERA5 Re-analysis Model deployed on ECMWF Computer. The data assimilation system used to produce ERA5 is based on the Integrated Forecasting System (IFS)Cycle 41r2 release, with several added features specifically developed for reanalysis. The many changes and improvements incorporated into the IFS represent a decade of research and development in modelling and data assimilation. The ERA5 reanalysis benefits from research conducted in the EU-funded ERA-CLIM and ERA-CLIM2 projects carried out by ECMWF and partners. These led to improved input data for the assimilating model that better reflects observed changes in climate forcings, as well as many new or reprocessed observations for data assimilation. The system includes : - Model input: Appropriate for climate (e.g. CMIP5 greenhouse gases, volcanic eruptions, |
| Input Description | None |
| Output Description | None |
| Software Reference | None |
- units: K
- standard_name: air_temperature
- var_id: ta
- long_name: Air Temperature
- names: air_temperature, Air Temperature
- units: K
- standard_name: air_temperature
- long_name: Climatological Air Temperature
- var_id: taclim
- names: air_temperature, Climatological Air Temperature
- units: m s-1
- standard_name: eastward_wind
- long_name: Climatological Eastward Wind
- var_id: uaclim
- names: eastward_wind, Climatological Eastward Wind
- units: m s-1
- standard_name: northward_wind
- long_name: Climatological Northward Wind
- var_id: vaclim
- names: northward_wind, Climatological Northward Wind
- units: m s-1
- standard_name: eastward_wind
- var_id: ua
- long_name: Eastward Wind
- names: eastward_wind, Eastward Wind
- units: m s-1
- standard_name: northward_wind
- var_id: va
- long_name: Northward Wind
- names: northward_wind, Northward Wind
- units: K
- standard_name: air_temperature
- long_name: Zonal Mean Air Temperature
- var_id: tazm
- names: air_temperature, Zonal Mean Air Temperature
- units: K
- standard_name: air_temperature
- long_name: Zonal Mean Climatological Air Temperature
- var_id: tazmclim
- names: air_temperature, Zonal Mean Climatological Air Temperature
- units: m s-1
- standard_name: eastward_wind
- long_name: Zonal Mean Climatological Eastward Wind
- var_id: uazmclim
- names: eastward_wind, Zonal Mean Climatological Eastward Wind
- units: m s-1
- standard_name: eastward_wind
- long_name: Zonal Mean Eastward Wind
- var_id: uazm
- names: eastward_wind, Zonal Mean Eastward Wind
- units: Pa
- long_name: air_pressure
- var_id: plev137
- names: air_pressure
- var_id: climatology_bounds
- var_id: nbnd
- units: Pa
- long_name: pressure
- var_id: plev137
- names: pressure
- var_id: time_bnds
Co-ordinate Variables
- standard_name: latitude
- long_name: latitude
- var_id: lat
- names: latitude
- standard_name: longitude
- long_name: longitude
- var_id: lon
- names: longitude
- standard_name: time
- var_id: time
- names: time
Temporal Range
2010-01-01T00:00:00
2019-12-31T23:59:59
Geographic Extent
90.0000° |
||
-180.0000° |
180.0000° |
|
-90.0000° |