Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Skip to content

Sudden Stratospheric Warming Compendium

Metadata Updated: September 19, 2023

Sudden Stratospheric Warming Compendium (SSWC) data set documents the stratospheric, tropospheric, and surface climate impacts of sudden stratospheric warmings. This examines major mid-winter warmings, as defined by a reversal between November-March of the zonal winds at 10 hPa and 60N from westerly to easterly. The one major warming that occurred in the Southern Hemisphere is also included. Analyses are available from 6 different reanalyses: MERRA2 (1980-2014), JRA-55 (1958-2014), ERA-interim (1979-2014), ERA-40 (1958-2002), NOAA20CR (1958-2011), and NCEP-NCAR I (1958-2014). Global gridded anomaly fields are calculated from smoothed daily climatologies based on the full record of each reanalysis. Data is provided 60 days prior to and after each SSW event. Pressure-level fields include winds, temperatures, geopotential heights, vorticity and potential vorticity, and ozone; surface fields include temperatures, sea-level pressures, and precipitation. Other derived data and climate indices are also included. Data are provided as daily means, with 2.5x2.5 degree horizontal resolution for pressure-level fields and native horizontal resolution for surface fields. Daily climatological means and standard deviations of all input fields are included with the output.

Access & Use Information

License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

Downloads & Resources

Dates

Metadata Date June 23, 2023
Metadata Created Date October 28, 2022
Metadata Updated Date September 19, 2023
Reference Date(s) April 29, 2016 (publication)
Frequency Of Update annually

Metadata Source

Harvested from ncdc

Graphic Preview

Potential vorticity [-30 to 150 PVU] 3 days after the SSW event of 2009/01/24

Additional Metadata

Resource Type Dataset
Metadata Date June 23, 2023
Metadata Created Date October 28, 2022
Metadata Updated Date September 19, 2023
Reference Date(s) April 29, 2016 (publication)
Responsible Party UCO/CIRES > Cooperative Institute for Research in Environmental Sciences, University of Colorado (Author)
Contact Email
Guid gov.noaa.ncdc:C00960
Access Constraints Cite as: Butler, Amy; Sjoberg, Jeremiah; Seidel, Dian; and NOAA ESRL Chemical Science Division (2016):Sudden Stratospheric Warming Compendium, Version 1.0. NOAA National Centers for Environmental Information (NCEI). doi:10.7289/V5NS0RWP [access date]., Distribution liability: NOAA and NCEI make no warranty, expressed or implied, regarding these data, nor does the fact of distribution constitute such a warranty. NOAA and NCEI cannot assume liability for any damages caused by any errors or omissions in these data. If appropriate, NCEI can only certify that the data it distributes are an authentic copy of the records that were accepted for inclusion in the NCEI archives., Use liability: NOAA and NCEI cannot provide any warranty as to the accuracy, reliability, or completeness of furnished data. Users assume responsibility to determine the usability of these data. The user is responsible for the results of any application of this data for other than its intended purpose.
Bbox East Long 180.0
Bbox North Lat 90.0
Bbox South Lat -90.0
Bbox West Long -180.0
Coupled Resource
Frequency Of Update annually
Graphic Preview Description Potential vorticity [-30 to 150 PVU] 3 days after the SSW event of 2009/01/24
Graphic Preview File https://www.ncei.noaa.gov/pub/data/metadata/images/C00960.png
Graphic Preview Type PNG
Harvest Object Id 38850f68-c4b8-4b4f-8d60-14e919f59e1b
Harvest Source Id 2cb3ef77-1683-4c2a-9119-dc65e50917c6
Harvest Source Title ncdc
Licence
Lineage Data in the compendium originated from various output reanalysis datasets which are commonly available. These reanalysis data, which are given on a variety of vertical, horizontal, and temporal resolutions, are converted to 1) daily pressure-level data on a 2.5x2.5 degree horizontal grid and 2) daily surface data on the native horizontal grid. Daily climatologies are calculated from these processed full-field data and anomaly fields are calculated. Event dates are selected and the processed full-field and anomaly reanalysis data are extracted. A number of output data fields are calculated using these extracted full-field and anomaly data.
Metadata Language eng; USA
Metadata Type geospatial
Old Spatial {"type": "Polygon", "coordinates": [[[-180.0, -90.0], [180.0, -90.0], [180.0, 90.0], [-180.0, 90.0], [-180.0, -90.0]]]}
Progress underDevelopment
Spatial Data Service Type
Spatial Reference System
Spatial Harvester True
Temporal Extent Begin 1948-07-01
Temporal Extent End 2014-12-31

Didn't find what you're looking for? Suggest a dataset here.