Abstract
Abstract This article describes the performance of the variational bias correction system for satellite radiance data in ERA‐Interim, and considers implications for the representation of climate signals in reanalysis. We briefly review the formulation of the method and its ability to automatically develop bias estimates when radiance measurements from newly available satellite sensors are first introduced in the reanalysis. We then present several results obtained from the first 19 years (1989–2007) of ERA‐Interim. These include the identification of Microwave Sounding Unit (MSU) instrument calibration errors, the response of the system to the Pinatubo eruption in 1991, and the detection of a long‐term drift in biases of tropospheric AMSU‐A data. We find that our results support the notion that global reanalysis provides an appropriate framework for climate monitoring. Copyright © 2009 Royal Meteorological Society
Keywords
RadianceSatelliteInterimRemote sensingAdvanced Microwave Sounding UnitMeteorologyEnvironmental scienceDepth soundingData assimilationCalibrationComputer scienceClimatologyGeographyGeologyMathematicsStatisticsCartography
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Publication Info
- Year
- 2009
- Type
- article
- Volume
- 135
- Issue
- 644
- Pages
- 1830-1841
- Citations
- 638
- Access
- Closed
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Cite This
Dick Dee,
S. Uppala
(2009).
Variational bias correction of satellite radiance data in the ERA‐Interim reanalysis.
Quarterly Journal of the Royal Meteorological Society
, 135
(644)
, 1830-1841.
https://doi.org/10.1002/qj.493
Identifiers
- DOI
- 10.1002/qj.493