SMOS SAG Meeting, ESAC-Villafranca del Castillo, 2-3 Nov 2006 KAUZAR SALEH YANN H. KERR COSMOS PROPOSAL TEAM Presentation of the study.

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Presentation transcript:

SMOS SAG Meeting, ESAC-Villafranca del Castillo, 2-3 Nov 2006 KAUZAR SALEH YANN H. KERR COSMOS PROPOSAL TEAM Presentation of the study

SMOS SAG Meeting, ESAC-Villafranca del Castillo, 2-3 Nov 2006 Outline 1-CAMPAIGN DESCRIPTION 2-ACQUIRED DATA 3-QUICK-LOOKS 4-COSMOS DATA ANALYSIS SPP AND SCHEDULE 1

1-COSMOS CAMPAIGN: Site Cosmos & NAFE 2005 : Goulbourn NAFE 2006: Murrumbidgee 2 NAFE-05 (31/10-25/11) Focus on high resolution retrievals, scaling and assimilation NAFE-06 (/10-/11) Focus on SMOS scale retrievals, downscaling and assimilation COSMOS (13/10-09/12) Focus on SMOS L2 implementation, SMOS open issues, SMOS L2 validation

1-COSMOS CAMPAIGN: Objectives 1 SMOS L2 ALGORITHM IMPLEMENTATION 2 SMOS L2 ALGORITHM VALIDATION MODELLING IMPROVEMENTS [interception?, grass model?, soil model? … ] SUN GLINT OVER LAND? ANCILLARY DATA USEFUL? HOW DO WE USE IT? SM LEVEL 2 CONCEPT VALIDATION ERROR ANALYSIS 3 COSMOS/NAFE MOST COMPLETE AIRBORNE DATA SET OVER PRAIRIES- ‘OUTDOORS LAB’

1-COSMOS CAMPAIGN: Goulbourn catchment Whole catchment area ~75km x 100km 4 clay loam sand sandy loam clay-loam 8 FARMS 250 m DEM Elevation above sea level (m)

1-COSMOS CAMPAIGN: Goulbourn catchment Whole catchment area ~75km x 100km 5 8 FARMS

1-COSMOS CAMPAIGN: EMIRAD and PLMR along-track EMIRAD (TUD) L-BAND along-track POLARIMETRIC + Potter horns 37.6 deg & 30.6 deg HPBW (0 DEG AND 40 DEG TILT) 6 SERA ECO-DIMONA L-BAND across/along-track PLMR (TUD) L-BAND across/along-track POLARIMETRIC + 6 incidence angles (+/-7, +/-21.5, +/-38.5)

1-COSMOS CAMPAING: EMIRAD and PLMR 7 ⇨ Opportunity for intercomparison between two L-band sensors PERFORMED FLIGHTS FOCUSANGLESALTITUDE (AGL) DAYS EMIRAD FLIGHTS REGULARREPETITION NADIR 40 DEG ~1800 ft9 HIGH ALTITUDESCALING~6000 ft2 SUN GLINT (dive)SUN GLINT OVER LAND ~1800 ft1 DEWINTERCEPTION~1600 ft2 CALIBRATIONCALIB/INTERC~600 ft, ~1600 ft PLMR FLIGHTS REGIONALAMSR 6 , pushbroom ft4 SCALING 6 , pushbroom 625, 2500, 5000, ALONG TRACKMULTI-ANGULAR 6 , along-track 2500 ft6 DEWINTERCEPTION 6 , pushbroom 5000 ft2 CALIBRATIONCALIB/INTERC 6 , pushbroom tbc

1-COSMOS CAMPAING: SOIL MOISTURE SAMPLING 8 REGIONAL RESOLUTION: 1 km (AMSR validation) INTERMEDIATE RES: 125 m, 250 m HIGH RES: 12.5 m, 62.5 m ‘SUPER HIGH’ RES: 6.25 m 14/11 15/11 Pembroke sampling

2- ACQUIRED DATA (COSMOS PERIOD) LETTERS ARE FARM NAMES VEGETATION DATA NOT INCLUDED 9

regularregular/sun glintregular dew 13/1114/1115/1117/11 20/1121/1122/1123/11 regular/high altitude high altitude regular 27/1129/11 03/1209/12 regular high altitude 3-Quick-looks: TB EMIRAD H POL (corrected for attitude and topography).Type of flight [K] 10 rainfall

3-Quick-looks: TB EMIRAD H POL (corrected for attitude and topography) EXAMPLE OF A REGULAR FLIGHT 11 Oats, barley grazing Grazing, wheat

3-Quick-looks: TB EMIRAD (corrected for attitude and topography) EXAMPLE OF HIGH ALTITUDE FLIGHT 12 Footprint size at nadir ~ 1200m x 1200 m nadir view 21/11 Soil moisture conditions: absence of rain for ~10 days Dynamic range: H pol- (20 K) -- V pol- (10 K) TB_V<TB_H at all nadir flights --- problem with nadir antenna H channel ?

3-Quick-looks: TB EMIRAD (corrected for attitude and topography) COMPARISON PLMR-EMIRAD (1): REGULAR FLIGHT 13 EMIRAD TRACK IN BLUE PROBLEM WITH NADIR H CHANNEL? PLMR EMIRAD SMALL POL. RATIO

3-Quick-looks: TB EMIRAD (corrected for attitude) CALIBRATION ISSUES: flights over Glenbawn lake (e.g. 15/11) 14

3-Quick-looks: TB EMIRAD SUN GLINT EFFECTS deg sun elevation observations‘Diving’ flights

3-Quick-looks: RFI? (plots here  =0.1 s! …) 16 Not associated to RFI Take-off at airport Take-off & at the airport Unknown

4-Cosmos data analysis SPP SMOS L2 ALGORITHM IMPLEMENTATION SMOS L2 ALGORITHM VALIDATION Cosmos Data Analysis proposal- Led by CESBIO/UPS Validity period: Nov Nov Year 1: Exploitation of the COSMOS data set Year 2: Complementation of the study (NAFE05-NAFE06) and further validation studies 17 SPP: Focus on exploitation of the COSMOS data set in view of:

4-Cosmos data analysis SPP: schedule WP number and title NDJFMAMJJASONDEFMAMJJASO WP1000 Project management WP2000 Literature review WP3100 Data acquisition WP3200 Data processing WP4000 Algorithm implementation and validation WP5000 Analysis of NAFE-05 PLMR WP6100 Conclusions and recommendations (1) WP6200 Conclusions and recommendations (2) Planned meetings K-OK-O PM1PM1 PM2PM2 PM3PM3 IMIM PM4PM4 PM5PM5 FMFM 18

5-Conclusions 19 COSMOS/NAFE site: Great ’Outdoors lab’ for SMOS Level 2 Implementation/Validation Complementary EMIRAD/PLMR flights: 6-week campaign, room for addressing a large number of issues (cross-comparison sensors, modelling of TB, sun glint, scale of soil moisture for validation, impact of ancillary data on retrievals …) Priority tasks: -- Check calibration of EMIRAD data to clarify nadir observations and problems derived from high temperature within the aircraft -- Obtain calibration flights from PLMR flights over Glenbawn lake -- Analyse faster sampling data for RFI detection -- Calibration of TIR measurements

Extra (Work-packages)