ESA-JAXA Pre-Launch EarthCARE
Science and Validation Workshop

13 – 17 November 2023 | ESA-ESRIN, Frascati (Rome), Italy

EVID10: MORECALVAL : MObile Radar-Lidar-Radiometer EarthCare
CAL/VAL project
J. Delanoë*, S. Gross+, F. Ewald+, S. Bony#, G. Rivière#, O. Jourdano, P. Coutriso... and many more
*LATMOS, DLR+, LMD#, LaMPoMObile Radar-Lidar-Radiometer EarthCARE CAL/VAL project
German-French tandem for Calibration of EarthCARE’s instruments (CPR, ATLID, MSI)
Validation of cloud, precipitation and aerosol synergistic products
Calibration and validation
1. Assessing EarthCARE measurements performances
2. Calibrating EarthCARE measurements (radar Doppler velocity andreflectivity, lidar mol and particulate, depolarisation measurements)• Making the most of our instruments capabilities (HSRL atdifferent wavelengths, Doppler radars with high sensitivity),
higher horizontal&vertical resolutions.

3. Validating EarthCARE products (L1)• Performing independent measurements from mobileplatforms (similar or extended payloads to EarthCARE).

4. Validating EarthCARE synergistic products and algorithms (L2)•

Targeted products• Comparing and interpreting the measurements byperforming simulation of our "in situ" and EarthCARE HSR
lidar and Doppler radar observables• ATLID Level 1/CPR Level 1 / ATLID Level 2a (FM, AER, ICE, TC, EBD, CTH,ALD)• CPR Level 2a (FMR, CD, TC, CLD)/CPR Level 2a JAXA (ECO, CLP)
• Level 2b (TC)/Level 2b (CAP, COM, 3D, RT)

Comparing the measurements with direct underpasses• Running our own retrievals combining more instruments
than EarthCARE or with different wavelengths.
•Comparing our products to EarthCARE’sESA-JAXA Pre-Launch EarthCARE Science and Validation Workshop | 13 – 17 November 2023 | ESA-ESRIN, Frascati (Rome), Italy

Airborne platforms : HALO (German)••••

Stevens et al., 2019

Instruments/Objectives
WALES (Lidar)
MIRA35 (Radar)
specMACS (Imager)
Aircraft‘s baseline
information (in-situ)

ESA-JAXA Pre-Launch EarthCARE Science and Validation Workshop | 13 – 17 November 2023 | ESA-ESRIN, Frascati (Rome), Italy

WALES HSRL and WV/Ozone DIALMIRA 35 high power Doppler radar
specMACS multi-sprectral Imager
Baseline in-situ measurementsAerosols

Clouds/precipWatervapour/
Temp

WindTurbulenceAirborne platforms : ATR42 (French)•••••

RASTA looking up and down 6 antennas (Doppler W-band)
HRSL LNG new generation (new laser, new acquisition) 2 pointing directions
Sideward looking W-band Doppler radar (BASTAir)
Sideward looking 355 raman (aWALI) or 355 nm backscatter lidar (ALiAS)
Large in-situ payload

https://rali.aeris-data.fr/

ESA-JAXA Pre-Launch EarthCARE Science and Validation Workshop | 13 – 17 November 2023 | ESA-ESRIN, Frascati (Rome), ItalyExamples of measurements : HALO & ATR42
HALO

Backscatter
ratio

ATR42
Sidewards looking W-band
Z W-bandRay channel

Z 35GHzMie channel
Doppler Mie

Doppler
VelociyVz
horizontal|V|

ESA-JAXA Pre-Launch EarthCARE Science and Validation Workshop | 13 – 17 November 2023 | ESA-ESRIN, Frascati (Rome), Italy

Airborne platforms : field campaigns• PREMASTRO (July 2024, ATR42) – funded (CNES/ESA)• Dedicated to EC’s Cal/Val, Toulouse• ORCHESTRA (MAESTRO and PERCUSSION (Silke’s presentation)) – (August-Sept, HALO+ATR42) –funded (MAESTRO ERC)
• Cloud organisation, convection from shallow to deep, Cape Verde• BACCOPA (Sept 2025, ATR42) – funded (ANR)• Cloud aerosol interaction, Central equatorial Africa• NAWDIC (Feb 2026, ATR42) – not funded yet• Strong winds, Ireland - Brittany• STACCATO (fall 2027, HALO) – not funded yet• Aerosol-cloud interaction, coupling clouds and circulation, Africa
Proposal submitted• AC3-PND (2028, HALO) – not funded yet• Water vapor clouds and aerosols in the Arctic region
ESA-JAXA Pre-Launch EarthCARE Science and Validation Workshop | 13 – 17 November 2023 | ESA-ESRIN, Frascati (Rome), Italy

Balloon-borne platform : LATMOS&CNES (French)
CNES STRALI project (W band Doppler radar + 808nm lidar) onboard CNES
stratospheric Balloon – first flights June 2024 - Kiruna

20-22kmGround based platforms : DLR&LATMOS• BASTA radars (W-band) network plus highly portable system• BALI system (scanning BASTA+ulidar 532/808 nm)• Synergistic Poldirad+BASTA (C-band+W-band, less mobile but can be moved)

ESA-JAXA Pre-Launch EarthCARE Science and Validation Workshop | 13 – 17 November 2023 | ESA-ESRIN, Frascati (Rome), Italy

Our expertise on our data (common DLR and LATMOS)• Calibration:
Airborne radars are calibrated using both lab and external calibration (Ewald et al.
2019)
ground based radars are calibrated using ACTRIS procedure (Toledo et al. 2020,Jorquera et al. 2023)
our lidars are calibrated using lab and external calibration (Esselborn et al. 2008, Wirthet al. 2009, Bruneau et al. 2015)• Target categorisation & retrieval:
Similar products as DARDAR for both HALO and RALI (Delanoë and Hogan 2010,
Cazenave et al. 2019, Marinou et al. 2020, Ewald et al. 2021, Aubry et al. 2023)
ESA-JAXA Pre-Launch EarthCARE Science and Validation Workshop | 13 – 17 November 2023 | ESA-ESRIN, Frascati (Rome), Italy