Dataset
HADRT2.2: Reconstructed gridded data set of global monthly radiosonde temperature anomalies, derived from HadRT2.1 (1958-2000)
Abstract
The HADRT2.2 data are global monthly fields of radiosonde temperature anomalies at standard pressure levels on a 10 degree latitude by 20 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.
HADRT2.2 is an eigenvector reconstructed grid data set from 1958 - 2000, on a 10 degree latitude by 20 degree longitude grid, created from HadRT2.1. The eigenvector reconstruction was used to infill missing seasons or years in boxes with 70% of seasonal or annual data available.
This dataset has been superseded by the HadAT dataset also available from CEDA.
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 |
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| Previously used record identifiers: |
No related previous identifiers.
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| 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.
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| File Format: |
The data are ASCII formatted (plain text and "human" readable) see Met Office HadRT2.2 data format information in docs for more information.
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Process overview
Instrument/Platform pairings
| Radiosonde | Deployed on: HadRT Radiosonde network |
Computation Element: 1
| Title | HadRT2.2 Computation |
| Abstract | HADRT2.2 is an eigenvector reconstructed grid data set from 1958 - 2000, on a 10 degree latitude by 20 degree longitude grid, created from HadRT2.1. The eigenvector reconstruction was used to infill missing seasons or years in boxes with 70% of seasonal or annual data available. 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
Temporal Range
1958-01-01T00:00:00
2000-12-31T00:00:00
Geographic Extent
90.0000° |
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-180.0000° |
180.0000° |
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-90.0000° |