FR2.L10.1: MONITORING SMOS BRIGHTNESS TEMPERATURES AT GLOBAL SCALE. A PRELIMINARY OVERALL QUALITY ASSESSMENT.

Monitoring SMOS brightness temperatures at global scale. A preliminary overall quality assessment Thanks to: ECMWF operations team, Matthias Drusch (ESA/ESTEC), Susanne Mecklenburg (ESA/ESRIN), Steven Delwart (ESA/ESTEC), Norrie Wright(ESA/ESRIN), Philippe Richaume (CESBIO). Joaquín Muñoz Sabater Anne Fouilloux, Patricia de Rosnay, Mohamed Dahoui

Outline ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Main objectives ,[object Object],[object Object],[object Object],Observed TB (OBS) ‏ Modelled TB (FG) ‏ Passive monitoring First Guess (FG) departures

Main objectives ,[object Object],[object Object],Soil moisture first-guess of j layer by ECMWF land surface scheme Background error matrix; a-priori knowledge of soil moisture variances Linearised version of the observation operator CMEM by small perturbations of the initial moisture state Soil layer defined in H-TESSEL Observation error matrix  inputs provided by monitoring statistics Multi-angular, multi-polarised SMOS TB observations w a,j = w b,j + (B -1 +H T R -1 H) -1 H T R -1 (TB 0 - H[w b,j ] ) ‏

Implementing SMOS data in the IFS. First version ODB: Observations Data Base used by the Integrated Forecasting System

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Main obstacles (and challenges) in the implementation

L1C-NRT BUFR product Convert to L1C-NRT ECMWF BUFR product ,[object Object],[object Object],[object Object],[object Object],ESAC MARS ECFS Store in ECMWF archives Computations in model space (gp_model) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],BUFR files Mapping and load data to ODB tables ODB data passive monitoring of L1C TB over land & sea ,[object Object],[object Object],[object Object],[object Object],T atm ε Distribution per processor and grid point Implementing SMOS data in the IFS. New version

$Instrument_$SensingTime1_$SensingTime2_$Satellite_$orbit_$datatype_$GeneratingTime_$datalevel.bufr NRT latency – December 2009

NRT latency – Jan-Feb-Mar-Apr 2010 January February March April

NRT latency – May-June-July 2010 May June July

[object Object],[object Object],[object Object],[object Object],[object Object],SMOS data pre-processing

Observations monitoring ,[object Object],[object Object],[object Object],[object Object],[object Object]

TBxx TByy 20-Nov-09 20-Dec-09 16-Jan-10 Θ = 40° NRT NRT

Monitoring observations – Urulu (Australia) TBV

First - guess First-guess  CMEM initial config ,[object Object],[object Object],[object Object],[object Object],dielectric Wang effect. temp Choudhury smooth surface Fresnel roughness Choudhury vegetation Kirdyashev atmosphere Pellarin

First-guess departures (obs - model) ‏ H-pol V-pol ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

First-guess departures (obs – model) ‏ H-pol FG departures Orography Case Study: 22 January 2010 FG departures > 75K

First-guess departures (obs – model) ‏ H-pol FG departures incidence angle Case Study: 22 January 2010 FG departures < -100K

First-guess departures V-pol Case Study: 22 January 2010 -25 K < FG departures < 25 K

Preliminary assessment of main FG departures ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Global statistics over land Average of Observations, TBH polarisation, spatial resolution 0.25 ° 01-07 June

Global statistics over oceans Average of Observations, TBV polarisation, spatial resolution 1° 01-07 April Incidence angle 46-48°

Global statistics over oceans Number of Observations per grid square, TBV polarisation, spatial resolution 1° 01-07 April Incidence angle 46-48°

Histogram of departures over oceans ,[object Object],[object Object],[object Object],[object Object],Observations – First_guess

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Global statistics: standard monitoring maps Areas affected by RFI  large STD of TB

Global statistics: Standard monitoring maps Map of Mean First Guess Departure over land (Obs – Model) 01-07 March

Global statistics : Standard monitoring maps Map of Mean First Guess Departure over land (Obs – Model) 01-07 April

Global statistics: Standard monitoring maps Map of Mean First Guess Departure over land (Obs – Model) 03-10 May

Global statistics: Standard monitoring maps ,[object Object],[object Object],Map of STD of First Guess Departure over land (Obs – Model) 01-07 March

[object Object],[object Object],[object Object],[object Object],Global statistics: Standard monitoring Hovmoeller Diagrams

Global statistics: Time Series ,[object Object],[object Object],[object Object],[object Object],[object Object],Routine production of time series in different geographical areas Global (land), 01-06 Jun-2010 (30 ° - 35 ° ) ‏ TB ‏ H TBV ‏

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Summary

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Current and future activities

Faraday Effect over land H_pol TBH with Faraday – TBH without Faraday

Faraday Effect over land TBH with Faraday – TBH without Faraday V_pol

Observations monitoring – Sea West Coast Australia TBxx TByy

Monitoring observations – Urulu (Australia) TBxx TByy

Monitoring observations – Urulu (Australia) TBV TBH

Global statistics: Standard monitoring maps Map of STD of First Guess Departure over land (Obs – Model) 01-07 March

Global statistics: Time Series Routine production of time series in different geographical areas Global area, 02-09 May-2010 (H-pol) ‏ ,[object Object],[object Object],[object Object],[object Object],[object Object]

Global statistics over oceans Standard deviation of Observations, TBV polarisation, spatial resolution 1° 01-07 April Incidence angle 46-48°

FR2.L10.1: MONITORING SMOS BRIGHTNESS TEMPERATURES AT GLOBAL SCALE. A PRELIMINARY OVERALL QUALITY ASSESSMENT.

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FR2.L10.1: MONITORING SMOS BRIGHTNESS TEMPERATURES AT GLOBAL SCALE. A PRELIMINARY OVERALL QUALITY ASSESSMENT.