Dataset
A global climatology of sting-jet cyclones: TRACK files and Sting-Jet Precursor Cut-Outs
Abstract
This dataset contains:
(1) extra-tropical cyclone tracks generated by the "TRACK" storm tracking algorithm (Hodges 1994, 1995, 1999) applied the European Centre for Medium-Range Weather Forecasts ERA5 reanalysis product,
(2) cyclone 'cutouts' holding storm-centred gridded data used by the sting-jet precursor (SJP) algorithm (Martinez-Alvarado et al., 2013), and
(3) output diagnostics from the SJP algorithm.
The directories contain data for seasons October-March (Northern Hemisphere) and April-September (Southern Hemisphere) during 1979-2022. TRACK uses 850 hPa relative vorticity filtered to T42 spectral resolution to find storm candidates and only tracks lasting >=1day and tracking >=500km are considered. The 10% strongest tracks also exhibiting a warm seclusion are archived in the "storm_data" directory for each season, except for the single season October-March 2011/2012 for which all North Atlantic tracks are also included in "storm_data_alltracks" directory.
Full descriptions of each data type are given in:
(1) readme-tracks.txt
(2) readme-cutouts.txt
(3) readme-sjp-outputs.txt
For full details of the storm selection and SJP analysis, see Gray et al: A global climatology of sting-jet extratropical cyclones (doi.org/10.5194/egusphere-2024-1413).
See online resources on this record for referenced items.
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(s): 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: |
Data were produced by the project team and supplied for archiving at the Centre for Environmental Data Analysis (CEDA). |
| Data Quality: |
Data are as given by the data provider, no quality control has been performed by the Centre for Environmental Data Analysis (CEDA).
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| File Format: |
Data are NetCDF formatted
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Related Documents
Process overview
- units: J kg-1
- var_id: DSCAPE
- var_id: FIRST_PT
- units: hPa
- standard_name: air_pressure_at_sea_level
- var_id: air_pressure_at_sea_level
- long_name: Mean Sea Level Pressure
- units: s**-1
- long_name: Relative Vorticity
- var_id: relative_vorticity
- standard_name: relative_vorticity
- var_id: TRACK_ID
- var_id: wind_speed_10m
- standard_name: wind_speed_10m
- long_name: Wind Speed at 10m
- units: m s*-1
- units: m s*-1
- var_id: wind_speed_925
- standard_name: wind_speed_925
- long_name: Wind Speed at 925hPa
- units: K
- standard_name: air_potential_temperature
- var_id: air_potential_temperature
- units: hPa
- standard_name: air_pressure_at_sea_level
- var_id: air_pressure_at_sea_level
- units: K
- standard_name: air_temperature
- var_id: air_temperature
- units: m s-1
- standard_name: eastward_wind
- var_id: eastward_wind
- standard_name: ertel_potential_vorticity
- var_id: ertel_potential_vorticity
- units: K m^2 kg^-1 s^-1
- var_id: hours_after_max_intensity
- long_name: hours_after_max_intensity
- var_id: index
- var_id: level
- long_name: level
- units: J kg-1
- var_id: maximum_DSCAPE
- units: m s-1
- standard_name: northward_wind
- var_id: northward_wind
- var_id: NUM_PTS
- long_name: number of obs for this trajectory
- units: millibars
- var_id: pressure_at_maximum_DSCAPE
- units: millibars
- long_name: pressure_level
- var_id: pressure_level_0
- units: 1
- var_id: relative_humidity_wrt_ice_at_maximum_DSCAPE
- units: kg kg-1
- standard_name: specific_humidity
- var_id: specific_humidity
- units: kelvin
- standard_name: wet_bulb_potential_temperature
- var_id: wet_bulb_potential_temperature
- var_id: wet_bulb_potential_temperature_advection_at_maximum_DSCAPE
- units: 0.001 s-1.K
- var_id: wet_bulb_potential_temperature_gradient_at_maximum_DSCAPE
- units: 0.001 m-1.K
Co-ordinate Variables
- units: degrees_north
- standard_name: latitude
- var_id: latitude
- long_name: Latitude
- units: degrees_east
- standard_name: longitude
- long_name: Longitude
- var_id: longitude_3
- standard_name: time
- var_id: time
- long_name: Time
- units: day as %Y%m%d.%f
- units: degrees_north
- standard_name: latitude
- long_name: latitude
- var_id: lat
- units: degrees_east
- standard_name: longitude
- long_name: longitude
- var_id: long
- standard_name: time
- var_id: time
- units: hours
Temporal Range
1979-01-01T00:00:00
2022-12-31T23:59:59
Geographic Extent
80.0000° |
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-180.0000° |
180.0000° |
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-80.0000° |