The use of RDT in the HAIC project

Transcription

1 The use of RDT in the HAIC project Jean-Marc Moisselin Météo-France, Nowcasting Department co-authors: Christine Le Bot (Météo-France), Pierre Rieu (Météo-France), Amanda Gounou (MétéoFrance), Eric Defer (CNRS/LA), Jos De Laat (KNMI)

2 Overview 1.Introduction 2. RDT in HAIC Campaigns 3. RDT a tool for detecting high IWC 4. Summary and future works

3 The RDT Tool RDT= Rapidly Developing Thunderstorm Output: convective objects description Localisation, area, cloud top characteristics, moving, trends, stage of development, severity, activity...

4 RDT visualisation

5 RDT is a story......of SCIENCE convection features (overshooting tops, convection Yes/No diagnosis, new satellites, HAIC project)...of Software in the framework of NWCSAF...of Operation For example by Météo-France for forecasters or aviation end-users

6 Overview 1. Introduction 2.RDT in HAIC Campaigns 3. RDT a tool for detecting high IWC 4. Summary and future works

7 The high IWC (Ice Water Content) hazard for aviation Ice crystals: cold meteors of very small size (grain of flour). Often non visible through onboard radar. Different of classical icing. High altitude (>22000 ft), inside or close to convective clouds Impact on probes Impact on engines

8 RDT: a support to HAIC campaigns (1/2) HAIC project. Project co-funded by the European Commission within the Seventh Framework Programme ( ). During the HAIC flight campaigns: use of RDT in order to detect and track convective systems that could generate conditions of high IWC (Ice Water Content). Uplink of RDT

9 RDT: a support to HAIC campaigns (2/2) Courtesy Honeywell and Atmosphere company

10 Ready for uplink Enhanced satellite 10.8µm image + convective objects After the discrimination phase of the RDT algorithm Each object is described with a complete set of attributes If we want to reduce the information to its kernel Convective objects outlines alone + Possibility to reduce the set of attributes U P LI N K

11 RDT in the and 2016 HAIC campaigns Darwin 2014 Cayenne New MTSAT RDT production - RDT for ground operation - RDT for post-campaign analysis - New MSG RDT production, existing production for GOES - RDT for ground operation (MSG+GOES) - RDT uplinked - RDT for post-campaign analysis Darwin/La Réunion New Himawari-8 RDT production, existing production for Meteosat 7 and MSG. - RDT for ground operation - RDT uplinked - RDT for post-campaign analysis

12 Sum-up of RDT configurations for HAIC Darwin 2014 Cayenne 2015 Darwin 2016 La Réunion 2016 Satellite MTSAT-1R Freq 10' MSG Freq 15' Himawari-8 Freq 20' Meteosat 7 Freq 30' Version RDT v2012 Arpège NWP model v2013 Arpège NWP model v2013 Arpège NWP model v2013 Arpège NWP model Tropical Forcing No No Yes (-75 C) Yes (-75 C) TCold -70 C -80 C -75 C -75 C Channels for RDT (µm) 6.7, , 7.3, 8.7, 10.8, 12.0 (and VIS0.6 for OTD) 6.2, 7.3, 8.7, 10.8, 12.0 (and VIS0.6 for OTD) 10.7 Other NWCSAF Products Cloud Products Cloud Products CRR Cloud Products Lightning Network No Main problems encountered * missing slots * RDT discrimination scheme not 100% tuned for MTSAT-1R rapidscan Uplink Only file preparation Starnet (use for ATD (use for convection description, not for convection Yes/No discrimination) convection description, not for convection Yes/No discrimination) Parallax Edge of SAT domain YES No RDT algorithm (discrimination scheme) not 100% tuned for Himawari8 YES * Only one channel as input, * Frequency 30' YES

13 Operation Readiness RDT in operational environment EUMETCAST: satellite reception at MF Dedicated blades for job scheduling, NWC SAF PGE, output file and transcoding, data storage. Operated by Satellite Centre of Météo-France (Lannion) Production monitoring: execution time, file size, key parameter (number of convective cells over a domain), etc.

14 Overview 1. Introduction 2. RDT in HAIC Campaigns 3.RDT a tool for detecting high IWC 4. Summary and future works

15 References for verification Airplane parameters : SAT (Static Air Temperature), TAT (Airplane Temperature) for Darwin 2014, Cayenne 2015, Darwin-La Réunion 2016 Robust probe data (TWC) provided by LAMP (Darwin 2014, Cayenne 2015, Darwin 2016, La Réunion 2016) IKP (Isokinetic probe) data (TWC) provided by NCAR (Darwin 2014, Cayenne 2015) RASTA (TWC profile, upward air velocity) provided by LAMP (Darwin 2014, Cayenne 2015) DARDAR product. Combination of coincident radar (95 GHz) and lidar (532 & 1064 nm) space-borne A-Train observations sensitive to different properties of the clouds (phase, particle size distribution). Capability to retrieve the vertical distribution of IWC (a) (b)

16 Pairing high IWC and RDT

17 Four methodologies for pairing Taking into account formerly-convective cells IWC in declassified systems 2 Th e re fe re nc e HIGH LOW 1A LOW The nowcasting potential of RDT regarding IWC hazard + blinking effect 1B 1C HIGH Taking into account old cells

18 Subjective evaluation of Flight#24 of Cayenne Campaign Flight 24 Good agreement Interest of 2nd level

19 POD of Cayenne Campaign methods 1A 1B 1C

20 POD of Cayenne Campaign methods 1A and 2

21 Subjective verification with DARDAR

22 Sum-up of objective verification POD FAR nb of flights Darwin Cayenne Darwin La Réunion DADAR paths

23 Overview 1. Introduction 2. RDT in HAIC Campaigns 3. RDT a tool for detecting high IWC 4.Summary and future works

24 Summary and future works RDT as support to HAIC campaign : ground operations and uplink to Research Aircracft for tacitcal use. Definition of new domains helped Météo-France to progress the issue of Global RDT RDT as a tool for Detection of IWC - post-campaign analysis - TRL5 reached - Mitigation identified for high IWC remaining in declassified system - Day and Night v2016 NWCSAF delivery : a new attribute concerning IWC hazard estimate (Day only): KNMI algorithm with Météo-France NWCSAF microphysics input

25 High Altitude Ice Crystals (HAIC, ) Project co-funded by the European Commission within the Seventh Framework Program ( )

26 Thank you