540a4c4cdfa6497993bbfa7c3e3df51a English 8-bit variable size UCS Transfer Format, based on ISO/IEC 10646 dataset NERC EDS Centre for Environmental Data Analysis 01235446432 RAL Space STFC Rutherford Appleton Laboratory, Harwell Campus Didcot OX11 0QX United Kingdom support@ceda.ac.uk pointOfContact 2026-05-06T02:26:42 UK GEMINI 2.3 WGS 84 Stratospheric Nudging And Predictable Surface Impacts (SNAPSI): Reference state data 2022-04-19T16:51:10 publication 2022-04-19T16:51:10 creation https://catalogue.ceda.ac.uk/uuid/540a4c4cdfa6497993bbfa7c3e3df51a 540a4c4cdfa6497993bbfa7c3e3df51a NERC EDS Centre for Environmental Data Analysis 10.5285/540a4c4cdfa6497993bbfa7c3e3df51a doi 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. Hitchcock, Peter Unavailable author Unavailable author NERC EDS Centre for Environmental Data Analysis custodian 01235446432 RAL Space STFC Rutherford Appleton Laboratory, Harwell Campus Didcot OX11 0QX United Kingdom support@ceda.ac.uk custodian NERC EDS Centre for Environmental Data Analysis distributor 01235446432 RAL Space STFC Rutherford Appleton Laboratory, Harwell Campus Didcot OX11 0QX United Kingdom support@ceda.ac.uk distributor NERC EDS Centre for Environmental Data Analysis point_of_contact 01235446432 RAL Space STFC Rutherford Appleton Laboratory, Harwell Campus Didcot OX11 0QX United Kingdom support@ceda.ac.uk pointofContact NERC EDS Centre for Environmental Data Analysis publisher 01235446432 RAL Space STFC Rutherford Appleton Laboratory, Harwell Campus Didcot OX11 0QX United Kingdom support@ceda.ac.uk publisher unknown dataset stratosphere arctic antarctic stratospheric polar vortex SNAPSI SNAP APARC atmospheric conditions theme GEMET - INSPIRE themes, version 1.0 2008-06-01 publication otherRestrictions Public data: access to these data is available to both registered and non-registered users. otherRestrictions Under the following licence https://creativecommons.org/licenses/by-sa/4.0/, appropriate use of these data may fall under any use. This message is intended as guidance, always read the full licence. When using these data you must cite them correctly using the citation given on the CEDA Data Catalogue record. grid English climatologyMeteorologyAtmosphere -180.0 180.0 -90.0 90.0 2010-01-01T00:00:00 2019-12-31T23:59:59 netCDF NERC EDS Centre for Environmental Data Analysis Data Center Contact 01235446432 RAL Space STFC Rutherford Appleton Laboratory, Harwell Campus Didcot OX11 0QX United Kingdom support@ceda.ac.uk distributor https://catalogue.ceda.ac.uk/uuid/540a4c4cdfa6497993bbfa7c3e3df51a CEDA Data Catalogue Page Detail and access information for the resource information http://data.ceda.ac.uk/badc/snap/data/post-cmip6/SNAPSI/SNAP/SNAPSI-REF DOWNLOAD Download Data download https://doi.org/10.5194/gmd-2021-394 Stratospheric Nudging And Predictable Surface Impacts (SNAPSI): A Protocol for Investigating the Role of the Stratospheric Polar Vortex in Subseasonal to Seasonal Forecasts No further details. information https://www.sparc-climate.org/2021/04/30/new-set-of-controlled-numerical-experiments-stratospheric-nudging-and-predictable-surface-impacts-snapsi/ New set of controlled numerical experiments: Stratospheric Nudging And Predictable Surface Impacts (SNAPSI) No further details. information dataset Commission Regulation (EU) No 1089/2010 of 23 November 2010 implementing Directive 2007/2/EC of the European Parliament and of the Council as regards interoperability of spatial data sets and services 2010-12-08 Data were produced by the project team and supplied for archiving at the Centre for Environmental Data Analysis (CEDA). The data is based on model-level output from ERA5, downloaded on a 1x1 degree horizontal grid. It has been lightly processed to compute the climatology and put in a format consistent with the SNAPSI data request.