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Dataset

 

HADRT2.3: Globally complete monthly radiosonde temperature anomalies derived from HadRT2.1 (1958-2000)

Update Frequency: Not Planned
Status: Obsolete
Online Status: ONLINE
Publication State: Published
Publication Date: 2015-12-19
Download Stats: last 12 months

Abstract

The HADRT2.3 data are global monthly fields of radiosonde temperature anomalies at standard pressure levels on a 5 degree latitude by 10 degree longitude grid from 1958 to 2000.
Anomalies are calculated with respect to 1971-1990 climatology. Anomalies are available for 9 standard levels (850, 700, 500, 300, 200, 150, 100, 50, 30hPa) as well as tropospheric (850 - 300hPa) and stratospheric (150 - 30hPa) averages.
The data are degree Celsius anomalies from 1970-1990 means. Anomalies are calculated for each of about 200 sonde stations worldwide and grid values derived from these.

HADRT2.3 is a globally complete dataset based on HadRT2.1 1958-2000, but with gaps filled in by reference to the second derivative of the corresponding NCEP reanalysis temperature fields, using the Laplacian technique of Reynolds, 1988: A Real-Time Global Sea Surface Temperature Analysis. J. Climate (see docs for a link to this publication)

This dataset has been superseded by the HadAT dataset also available from CEDA.

Citable as:  Hadley Centre for Climate Prediction and Research (2015): HADRT2.3: Globally complete monthly radiosonde temperature anomalies derived from HadRT2.1 (1958-2000). NCAS British Atmospheric Data Centre, date of citation. https://catalogue.ceda.ac.uk/uuid/4ae1ae0cdbc04533b5e626a811d056f7
Abbreviation: Hadley-HADRT2.3
Keywords: Met Office, HADRT, radiosonde, temperature anomalies, Hadley

Details

Previous Info:

2007-03-06 The HadRT dataset was found to be inadequate as a climate dataset and therefore the Met Office produced the HadAT dataset which… Show More 2007-03-06 The HadRT dataset was found to be inadequate as a climate dataset and therefore the Met Office produced the HadAT dataset which supersedes HadRT data. Please note that it is a term of usage of this dataset that it is used in conjunction with our HadAT dataset. Show Less

Previously used record identifiers:
No related previous identifiers.
Access rules:
Restricted data: please submit an application using the REQUEST ACCESS link for access.
Use of these data is covered by the following licence: http://licences.ceda.ac.uk/image/data_access_condition/ukmo_agreement.pdf. When using these data you must cite them correctly using the citation given on the CEDA Data Catalogue record.
Data lineage:

Data obtained for the period from 1958 to July 2004, were provided as is by the Met Office Hadley Centre, for archiving at the BADC.

Data Quality:
Data quality controlled by the Met Office. Please see main reference paper for this dataset.
File Format:
The data are in ASCII format, see Met Office Hadley Centre HadRT2.3 data format information in docs for more information.

Process overview

This dataset was generated by a combination of instruments deployed on platforms and computations as detailed below.

Instrument/Platform pairings

Radiosonde Deployed on: HadRT Radiosonde network

Computation Element: 1

Title HadRT2.3 Computation
Abstract HADRT2.3 is a globally complete dataset based on HadRT2.1 1958-2000, but with gaps filled in by reference to the second derivative of the corresponding NCEP reanalysis temperature fields, using the Laplacian technique. See Reynolds (1988) paper in docs section. HadRT2.1 is in turn based on HadRT2.0 but with bias corrections. That is, anomalies are calculated with respect to 1971-1990 climatology and are calculated for each of about 200 sonde stations worldwide and grid values derived from these and then bias corrections are made to many station time series world-wide. The adjustments were calculated by reference to MSU data products, but only for known changes in instrumental or operational procedures for the period post 1979.
Input Description None
Output Description None
Software Reference None
Output Description None
  • long_name: Air Temperature
  • gcmd_url: http://vocab.ndg.nerc.ac.uk/term/P141/4/GVAR0027
  • gcmd_keyword: Air Temperature
  • names: Air Temperature, http://vocab.ndg.nerc.ac.uk/term/P141/4/GVAR0027
  • long_name: Temperature Anomalies
  • gcmd_url: http://vocab.ndg.nerc.ac.uk/term/P141/4/GVAR0861
  • gcmd_keyword: Temperature Anomalies
  • names: http://vocab.ndg.nerc.ac.uk/term/P141/4/GVAR0861, Temperature Anomalies
  • long_name: Vertical Profile Of Air Temperature
  • names: Vertical Profile Of Air Temperature

Co-ordinate Variables

Coverage
Temporal Range
Start time:
1958-01-01T00:00:00
End time:
2000-12-31T00:00:00
Geographic Extent

 
90.0000°
 
-180.0000°
 
180.0000°
 
-90.0000°