Workshop on Assimilation of high spectral resolution sounders in NWP

The workshop on Assimilation of high spectral resolution sounders in NWP was held from June 28 to 1 July 2004.

Description

The NASA AQUA satellite was successfully launched in May 2002 and sampled radiance data from the AIRS (and the accompanying AMSU-A) instruments are now available in near-real-time (NRT) to the NWP community. Most NWP centres have undertaken major research and development efforts for the validation and assimilation of this new advanced infrared sounder.

The aim of the workshop was to review the critical issues related to the assimilation of high spectral resolution sounders in operational NWP centres, in particular monitoring, cloud detection, channel selection, data compression and radiative transfer modelling.

Documents

PDF iconIntroduction and working group reports

Presentations

Session 1: RT modelling and bias correction issues  

Forward modelling for advanced infrared sounders

Roger Saunders

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Simulating infrared limb radiances from MIPAS in the ECMWF system

Niels Bormann

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Fast radiative transfer models for radiance assimilation: issues for the next generation of advanced sounders

Marco Matricardi

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Observation of bias in AIRS data and a correction strategy

Phil Watts

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Session 2: Assimilation issues  

Assimilation of AQUA data at NCEP

John Derber

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Assimilation of advanced infrared sounder observations at the Met Office

Andrew Collard

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The assimilation of AIRS radiances at ECMWF

Tony McNally

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Assimilation results at Météo-France for AIRS

Thomas Auligné

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Challenges in satellite data monitoring at ECMWF

Gerald Van Der Grijn

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Variational bias correction of radiance data in the ECMWF system

Dick Dee

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Estimation of atmospheric CO2 concentrations through the data assimilation of AIRS radiances in the ECMWF 4D-Var system

Richard Engelen

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Session 3: Treatment of cloud issues  

Prospects for assimilating cloudy radiances from AIRS

Frédéric Chevallier

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Cloud detection for IASI/AIRS using imagery

Lydie Lavanant

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Apperception of clouds in AIRS data

Allen Huang

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Extraction of atmospheric profile information from cloud contaminated radiance spectra

Bill Smith

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Session 4: Information Content Issues  

Information content of advanced sounders

Clive Rodgers

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Information Content of limb radiances from MIPAS

Anu Dudhia

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PCA-based information content studies from high spectral resolution infrared observations

Paolo Antonelli

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Data compression for IASI and radiative transfer in EOF space

Peter Schlüssel

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Compression of AIRS data with principal components

Jonathan Smith

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Principal component analysis of AIRS radiances

Mitch Goldberg

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Proceedings

PCA-based information content studies from high spectral resolution infrared observations

P Antonelli

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Assimilation results for AIRS at Météo-France

T Auligné

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Simulating infrared limb radiances from MIPAS in the ECMWF system

N Bormann

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Prospects for assimilating cloudy radiances from AIRS

F Chevallier

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Assimilation of AIRS observations at the Met Office

A Collard

PDF icon

Variational bias correction of radiance data in the ECMWF system

D Dee

PDF icon

Assimilation of advanced sounders at NCEP

J C Derber

PDF icon

Information Content of limb radiances from MIPAS

A Dudhia

PDF icon

Estimation of atmospheric CO2 concentrations through the data assimilation of AIRS radiances in the ECMWF 4D-Var system

R J Engelen

PDF icon

Principal component analysis (PCA) of AIRS data

M D Goldberg

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Apperception of clouds in AIRS data

H-L Huang

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Cloud detection for IASI/AIRS using imagery

L Lavanant

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Fast radiative transfer models for assimilation of radiance observation: issues for the next generation of advanced sounders

M Matricardi

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The assimilation of AIRS radiance data at ECMWF

A P McNally

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Information content of advanced sounders

C D Rodgers

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Forward modelling for advanced infrared sounders

R Saunders

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Data compression for IASI and radiative transfer in EOF space

P Schlüssel

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Compression of AIRS data with principal components

J Smith

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Extraction of profile information from cloud contaminated radiances

W L Smith

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Identification and correction of radiative transfer modelling errors for atmospheric sounders: AIRS and AMSU-A

P Watts

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Challenges in satellite data monitoring

G van der Grijn

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