F. Rabier, C. Faccani, N. Fourrié, F. Karbou, J-P Lafore, P. Moll, M. Nuret, J-L Redelsperger
Florence Rabier - the Conference Exchange · 2019-02-11 · TRMM GCOM-W/C GPM Megha Tropiques AQUA...
Transcript of Florence Rabier - the Conference Exchange · 2019-02-11 · TRMM GCOM-W/C GPM Megha Tropiques AQUA...
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AMS 2019
Florence Rabier
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Data Assimilation and Ensembles
EUROPEAN CENTRE FOR MEDIUM-RANGE WEATHER FORECASTS
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IRMA operational (18km ENS) vs 5km
3
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5 more instruments per year
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1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020
POES Suomi-NPP JPSS Metop FY3 CHAMP GRACE
COSMIC COSMIC-2 CNOFS SAC-C TERRASAR-X TANDEM-X DMSP
TRMM GCOM-W/C GPM Megha Tropiques AQUA AURA TERRA
ERS-1/2 QuikSCAT Oceansat RapidSCAT HY2 ENVISAT JASON
Saral/Altika Cryosat Meteosat GOES Himawari FY2+4 SMOS
SMAP EarthCARE ADM Aeolus GOSAT Sentinel 3 Sentinel 5p OCO-2
Number of satellite data products operationally monitored at ECMWF
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Active
Larger
frozen
particles,
particle
size and
shape
Cloud
particles,
lighter
precip.
Ground radar
Infraredhigh-freq
Microwave
low-T-soundingEarth
radiation
budget Cloud fraction,
cloud top
height, multiple
layers
Size of water
cloud particles
Sub-mm
Ice particle
size, shape,
orientation
Lightning
Vertically
resolved
Melting
particles
Cloud ice
water
Rain, including
particle size
Sub-FOV
heterogeneity
& structure
Vertically
resolved
Cloud
liquid
water
Solar
Rain gauge
Cloud
particle
size and
number
Cloud
cover
radar
All-sky assimilation: observations
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45r1: a major step towards semlessness
EUROPEAN CENTRE FOR MEDIUM-RANGE WEATHER FORECASTS
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Earth System components
EUROPEAN CENTRE FOR MEDIUM-RANGE WEATHER FORECASTS
Coupled models Integrated Forecasting System (IFS)
Ocean
Waves
Sea Ice
Land
Atmosphere
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Coupled data assimilation (CDA) continuum / spectrum
8EUROPEAN CENTRE FOR MEDIUM-RANGE WEATHER FORECASTS
No coupling
Delayed observation information
transfer
Freedom to plug together different
timescales and methods
Immediate observation information transfer
Constrained to 4D-Var timescales and framework
WCDA Quasi SCDA Full coupling
Weakly Coupled Data Assimilation Strongly coupled Data Assimilation
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Finite Volume Module: A scalable model framework
9EUROPEAN CENTRE FOR MEDIUM-RANGE WEATHER FORECASTS
Enhanced flexibility to be able to take
advantage of evolving HPC architectures
Existing IFS
New IFS-FVM
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Ensembles
Optimal use of observations
Earth-system model and assimilation
Scalability