meteorological service of canada status report
DESCRIPTION
17 th NOAM-Europe Data Exchange Meeting. Meteorological Service of Canada Status Report. Montr éal , Canada, May 26-28, 2004 Gilles Verner Chief, Data Assimilation and Quality Control Canadian Meteorological Centre. Outline. Current status: Canadian Forecast System - PowerPoint PPT PresentationTRANSCRIPT
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Environment CanadaCanadian Meteorological Centre
Environnement CanadaCentre météorologique canadien
Meteorological Service of Canada Status Report
Montréal, Canada, May 26-28, 2004
Gilles VernerChief, Data Assimilation and Quality Control
Canadian Meteorological Centre
17th NOAM-Europe Data Exchange Meeting
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Environment CanadaCanadian Meteorological Centre
Environnement CanadaCentre météorologique canadien
Outline
• Current status:– Canadian Forecast System
– Telecoms and Computers
– NWP System at CMC
– MSC Observing Networks and Canadian AMDAR
• Changes to NWP System since last meeting– Results from AMSU-B / GOES radiances
– Results from 15-km regional GEM
– Results from new OSE’s
• Future Plans and Requirements for Data
• Part II presented by Godelieve Deblonde
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Environment CanadaCanadian Meteorological Centre
Environnement CanadaCentre météorologique canadien
MSC Forecast Offices and Satellite Reception Facilities
Each MSC Officehas a GOES Direct Readout Station.
CMC has 3 GOESReadout Stations.
MSC operates 3 HRPTStations: Halifax, Gander and Edmonton.Data from a non-MSCNorthern station is alsoavailable (Resolute).CMC has DOMSAT system for AVHRR-GAC (TeraScan)
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Environment CanadaCanadian Meteorological Centre
Environnement CanadaCentre météorologique canadien
MSC Forecast Offices and Satellite Reception Facilities
Each MSC Officehas a GOES Direct Readout Station.
CMC has 3 GOESReadout Stations.
MSC operates 3 HRPTStations: Halifax, Gander and Edmonton.Data from a non-MSCNorthern station is alsoavailable (Resolute).CMC has DOMSAT system for AVHRR-GAC (TeraScan)
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Environment CanadaCanadian Meteorological Centre
Environnement CanadaCentre météorologique canadien
CMC Computer Center ConfigurationCMC Computer Centre Configuration
2004/03
6x ea
Supercomputing Cluster
SGIO3000's40 PEs
(MIPS R12K)
O2000 4 xR10K PEs
1.2 TB14x SCSIfrom OSS
Climate Archive
HPModel 30 &
60 RAID0.2 TB?
3x
1000 Mb/s switched128ports. Each host has links to
ops & dev net
SGIO300:8 PEs
Central File Server145 TB
4 DST drives20 MB/s ea.
LSI (1 TB 4X FC)
10x FCdual
attach
LSI11TB
Front Ends
FC Hubs 32 ports
Data Acquisition& Distribution
opsnet switched(1000+100+10)
CriticalWorkstations
devnet switched(1000+100+10)
Dev HPpairs
NationalProduct
DistributionServerMC/SG
2 x HP K370
SmallerHP pairs
PC's & WksNT/OTServers
2 x o200Monitoring
Servers
routers
8 x Front-End3 x Back-End
2 Data4 Climate
2 x Greenlane
DMZ nets (10)
router
AWWS2xHP
L-series
InternetServers
100 UNIX &150 MSdesktops
3x o200WrkGrpServers
Satnet Tx
PC's, Wks.&
Tandem
F820.05 TB
NASO3000 18 xR14K PEs
ASEPLinuxCluster
17 DL380
IBM SP -928 PE &2.19TB
LSI (8.67 TB FC)
8x
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Environment CanadaCanadian Meteorological Centre
Environnement CanadaCentre météorologique canadien
Telecommunications
• GTS link CMC - NWS: upgraded from 64 kbps to T1 during 2003
• Upgrade was done for exchange of NWP model output (for EPS) and Canadian Radar data
• Former NAIL link between Ice Centres (CIS - NIC) removed
• Link UKMO-CMC still active (Meteosat - GMS - GOES)
• Eumetsat - CMC link for EARS
• Internal MSC links upgraded (radar, hrpt, NWP)
• Internet still used for access to Nesdis data; CMC internet access upgraded during 2003 (100 mbps and 2 independent ISP)
• Funding for high speed link (T1+) with Nesdis approved
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OPERATIONAL RUNS: MAIN COMPONENTS
GEM modelGlobal (100km) : 0-10/15 days Regional (15km) : 0-48 hoursHIMAP (10km) : 0-24 hours
air quality (CHRONOS)
Environmental EmergencyTransport model (CANERM)
Trajectory model
monthly and seasonalforecasts
global assimilation cycle
3D Var Analysis (data collection and
assimilation)
Models,6-hour forecast
(trial field)
Wave model (WAM)
regional data assimilation
ensemble forecasts(16 members)
surface analysis
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CMC Operational Models
Global Model Regional Model• Uniform grid• Resolution of .9º (~100 km)• 28 eta levels• Kuo convection scheme• Sundqvist stratiform scheme• Force-restore surface module with climatogical soil moisture• 10 day forecasts at 00Z and 6 day forecasts at 12Z.• Cut-off of T+3h00
• Variable resolution grid• Resolution of .1375º (~15 km) • 58 eta levels• Kain-Fritsch scheme• Sundqvist stratiform scheme• ISBA surface module with soil moisture pseudo-analysis (error feedback, no data)• 48-hour forecasts (00Z -12Z)• Cut-off of T+1h35
• 3D-Var assimilation on model η levels (T108)• Background errors from 24-48 method• Observations QC with BG check and QC-VAR• GEM model (global, regional, meso)
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Environment CanadaCanadian Meteorological Centre
Environnement CanadaCentre météorologique canadien
575 X 641 grid (66% in 15-km uniformarea)
Regionalmodel
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CMC Operational Models (cont.)
Mesoscale model Global ensemble
• GEM variable grid (HiMAP)• Resolution of .09º (~10 km) L35• Kain-Fritsch convection scheme• Sundqvist condensation scheme• ISBA surface module• No assimilation cycle (started from 6hr regional)• 30 hour forecasts at 06/18Z
• Perturbed analyses from perturbed assimilation cycles• Resolution of ~150 km (1.2º for GEM and T149 for SEF)• 16 members• Multi model approach with different physics options• 10 day forecasts at 00Z
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Environment CanadaCanadian Meteorological Centre
Environnement CanadaCentre météorologique canadien
Observations for 3D-Var analysesTYPE
FORMAT / INSTRUMENT
PLATFORM VARIABLES
Upper-air soundings
• radiosonde
• pilot
• dropsonde
(profiler)
• land stations
• ships
• aircraft (dropsonde)
• temperature
• moisture
• winds
• sfc pressure
Surface observations • synoptic
• land stations
• ships
• fixed buoys
• drifting buoys
• temperature
• moisture
• sfc pressure
• winds (marine)
Satellite • NOAA ATOVS
amsu-a & amsu-b
• circumpolar (NOAA series)
(Aqua, amsu-a) • radiance
• GOES imager• geostationary (GOES-W)
(GOES-E)• radiance
• AMVs
( IR, WV, VI channels)
• geostationary
(GOES-E/W/P, METEOSAT-5/7)
(circumpolar, Terra & Aqua)
• derived winds
Aircrafts• BUFR / AMDAR
• AIREP / ADS
• Aircrafts
(single level & profiles)
• temperature
• winds
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Network now completed!
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Environment CanadaCanadian Meteorological Centre
Environnement CanadaCentre météorologique canadien
Canadian AMDAR Programme Business Case and Workshop March-April 2000
Canadian AMDAR Program Implementation Team:– TORs (EC, NC, airlines, WMO, NOAA, Sypher)– Canadian AMDAR s/w’s Specifications - enhanced ARINC 620-4– Data Ownership and Process & Communication Studies– AMDAR Data Control System’s Specifications (ongoing)
Completion of DASH-8’s AMDAR s/w by UASC (Unilink)
• Lobbying airlines to join, including major PR actions
Air Canada Jazz began reporting July 2002: 21 Air Nova DASH-8s and 10 CRJs presently reporting data– probable fleet expansion to Air BC and Air Ontario (2004-05), JAZZ now planning ~65
CRJ and 60 DASH-8 by March 2006 reception and processing of data by CMC; C-ADAS software
• Partnering with First Air for an alternative AMDAR system
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Environment CanadaCanadian Meteorological Centre
Environnement CanadaCentre météorologique canadien
Canadian AMDAR coverage
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Environment CanadaCanadian Meteorological Centre
Environnement CanadaCentre météorologique canadien
Canadian AMDAR coverage - soundings
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Environment CanadaCanadian Meteorological Centre
Environnement CanadaCentre météorologique canadien
Monitoring of Canadian AMDAR - DASH-8 Temp.
August 02
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Environment CanadaCanadian Meteorological Centre
Environnement CanadaCentre météorologique canadien
Monitoring of Canadian AMDAR - DASH-8 Wind
August 02
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Environment CanadaCanadian Meteorological Centre
Environnement CanadaCentre météorologique canadien
Monitoring of Canadian AMDAR - CRJ Wind/TT
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Environment CanadaCanadian Meteorological Centre
Environnement CanadaCentre météorologique canadien
Canadian AMDAR - Status
• Current sensor on DASH-8 is flush mounted on wing, next to hydraulic lines (non standard)
• AC Jazz Temp probes to be replaced (2 probes) on forward part of fuselage, should fix the Temp bias problem: target is end of 2004
• Monitoring by CMC helped JAZZ to explain a long standing issue related to their FMS generating unneeded steering commands in light wind situations
• First Air: have selected the NASA TAMDAR system for provision of data, test flight with TAMDAR to occur this Summer
• If evaluation of TAMDAR is conclusive, 8 First Air aircraft to start reporting in early to mid 2005.
• All (good) data to be on GTS: IUAA01 CWAO and IUAB01 CWAO, beginning soon with data from CRJ.
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Environment CanadaCanadian Meteorological Centre
Environnement CanadaCentre météorologique canadien
First Air Route (http://www.firstair.ca/images/FA-ROUTE.gif)
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Environment CanadaCanadian Meteorological Centre
Environnement CanadaCentre météorologique canadien
Other Canadian observations
• Canadian AMDAR on GTS soon, using BUFR code
• “Synoptic” observations from CTBTO network, using SYNOP MOBIL code, header: SNCN19 CWAO. Observations every 10-min, 10 stations for now but should increase, received at CMC by e-mail.
• Canadian radar data - will be available centrally at CMC, once NRP (National Radar Processor) becomes operational, in about 1 year
• Forestry and Road weather stations in British Columbia - data received at CMC, in old SA format. Data redistribution restrictions currently apply…should eventually be available in BUFR
• Co-operative network in Quebec (Province, Hydro-Quebec, etc), received at CMC, also redistribution restrictions…eventually in BUFR
• Montreal mesonet, including research wind profiler: under installation but operated by Universities, data not yet available and redistribution restrictions may apply…should be provided to USA profiler hub
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Environment CanadaCanadian Meteorological Centre
Environnement CanadaCentre météorologique canadien
Changes to CMC NWP System since last meeting
Major conversion to IBM machine during 2003 – completed by January 04
New satellite data, implemented June 19, 2003: AMSUB + GOES• 4 AMSU-B channels (ch 2-5)
• GOES 6.7 micron channel (tested GOES 8/10 but 8 replaced by 12, culd implement GOES-10 only)
• last level of moisture analyses raised from 300 to 70 hPa
• impacts mostly on moisture fields and precipitation
• implementation in global system only, due to IBM conversion
•note: loss of NOAA-17 AMSUA data on October 28, 2003
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Environment CanadaCanadian Meteorological Centre
Environnement CanadaCentre météorologique canadien
Average 250 mb (T-Td) analysis increments forAverage 250 mb (T-Td) analysis increments forthe 22 Dec 01 to 31 Jan 02 assimilation periodthe 22 Dec 01 to 31 Jan 02 assimilation period
GOES - CONTROL AMSUB - CONTROL
• AMSUB and GOES have similar average (quite large!!) corrections at 250 mb for T-Td
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Environment CanadaCanadian Meteorological Centre
Environnement CanadaCentre météorologique canadien
ATOVS available for Reg ATOVS available for GlobATOVS available for Reg ATOVS available for Glob
GOES available for RegGOES available for Reg
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Environment CanadaCanadian Meteorological Centre
Environnement CanadaCentre météorologique canadien
AMSU-B+GOES OPE
Results:48h forecast verification
over S. HemisphereAug-Sep 2002
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Environment CanadaCanadian Meteorological Centre
Environnement CanadaCentre météorologique canadien
Verification of 24-48 hr
precipitation NOAM
Dec 02-Jan 03
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Environment CanadaCanadian Meteorological Centre
Environnement CanadaCentre météorologique canadien
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Environment CanadaCanadian Meteorological Centre
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Cross Validation with SSM/I - IWV
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Environment CanadaCanadian Meteorological Centre
Environnement CanadaCentre météorologique canadien
Operational WMO Verification
3D-Var GEM3D-Var levels
TOVS 1d
TOVS 1b
3D-VarT,ps
AMSU-BGOES rad
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Environment CanadaCanadian Meteorological Centre
Environnement CanadaCentre météorologique canadien
Changes to CMC NWP System since last meeting
New GEM regional model evaluated in parallel during last 3 months
• MPI code
• 15 km, 58 levels (575 x 641 grid)
• Minimum resolution of 350 km
• Sundqvist condensation scheme
• Kain-Fritsch convection scheme
• Moist TKE (Turbulence en air saturé)
• Ktrans Shallow convection
• Very good results for mass/wind and PCPN
• 8x more cpu than previous regional model (24km, 28 levels)
• Incorporates AMSUB and GOES radiance data (as in global)
• Implemented May 18, 2004
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Environment CanadaCanadian Meteorological Centre
Environnement CanadaCentre météorologique canadien
Results Results fromfrom
PAR run:PAR run:Oper 24-Oper 24-
km vs new km vs new 15-km 15-km GEM;GEM;NOAMNOAM
mid-feb to mid-feb to mid-apr mid-apr
0404
GZ500 UV250
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Environment CanadaCanadian Meteorological Centre
Environnement CanadaCentre météorologique canadien
Results Results fromfrom
PAR run:PAR run:Oper 24-Oper 24-
km vs new km vs new 15-km 15-km GEM;GEM;NOAMNOAM
mid-feb to mid-feb to mid-apr mid-apr
0404
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Environment CanadaCanadian Meteorological Centre
Environnement CanadaCentre météorologique canadien
Implementations planned 2004-05
• Assimilation: new datasets– AMSUA (AQUA), GOES-12, Profilers, MODIS winds Spring 2004– Stratos AMSU-A channels + AMSU-B (raised model top) 2005 +– IR channels (GOES 10-12; METEOSAT, MTSAT and AIRS)– IWV from SSM/I and SSM/IS (eventually from sfc-GPS)– Sfc winds (QuikScat, SSM/IS)
• Global 4D-Var Fall 2004
• Improved GEM Global model Mid 2005
• EnKF (using 3D/4D operators) for EPS and flowdependent statistics Mid 2004
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Environment CanadaCanadian Meteorological Centre
Environnement CanadaCentre météorologique canadien
Difference in RMS of 24-hours Forecast errors, verified against Control analyses done with all the observations:
No Polar Winds – Polar Winds exp., 500 hPa wind vector (m/s), 2003110800-2004012512
Impact of MODIS Polar Winds
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Environment CanadaCanadian Meteorological Centre
Environnement CanadaCentre météorologique canadien
Anomaly correlation, GZ 500 hPaNorthern Hemisphere: Control, No SAT and NOUA
Winter 02 exp Winter 03 exp
17 dec 01 – 27 jan 02 | 8 nov – 31 dec 03
OSE without AMSUB/GOES
OSE with AMSUB/GOES/MODIS
New OSE’s
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Environment CanadaCanadian Meteorological Centre
Environnement CanadaCentre météorologique canadien
Anomaly correlation, GZ 500 hPaSouthern Hemisphere: Control, No SAT and NOUA
17 dec 01 – 27 jan 02 | 8 nov – 31 dec 03
OSE without AMSUB/GOES
OSE with AMSUB/GOES/MODIS
Winter 02 exp Winter 03 exp
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Environment CanadaCanadian Meteorological Centre
Environnement CanadaCentre météorologique canadien
Anomaly correlation, GZ 500 hPaNorth America: Control, No SAT and NOUA
17 dec 01 – 27 jan 02 | 8 nov – 31 dec 03
OSE without AMSUB/GOES
OSE with AMSUB/GOES/MODIS
Winter 02 exp Winter 03 exp
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Environment CanadaCanadian Meteorological Centre
Environnement CanadaCentre météorologique canadien
Global 4D-Var assimilation cycle
• 6h window with 45 min time step.
• 4D data thinning. Spatial data selection is done for each 45 min time bin.
• Incremental analysis performed at T108.
• GEM tangent-linear and adjoint models on 240 x 120 grid.
• 2 outer loops: 40 inner loops : adiabatic physics (vertical diffusion) 30 inner loops : improved physics (SGO, large scale condensation,
convection)
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Environment CanadaCanadian Meteorological Centre
Environnement CanadaCentre météorologique canadien
Recent 4D Results: 20 Jun – 28 Aug 03
4D-Var
OPS-3D
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Environment CanadaCanadian Meteorological Centre
Environnement CanadaCentre météorologique canadien
Improved Global GEMImproved Global GEM
Numerics / Dynamics
• 800 x 600 x L58 (i.e., 33 km at 49o)
• Timestep of 15 min
• Numerical poles at geographical poles
• 6 horizontal diffusion on momentum variables
• Modified sponge layer at model top
• Filtered orography from USGS
Physics
• Constant thermodynamic roughness over water surfaces
• No vertical smoothing on net radiational fluxes
• Bougeault-Lacarrere mixing length for the vertical diffusion
• MoisTKE for boundary-layer clouds
• Shallow convection with Kuo Transient
• Deep convection with Kain-Fritsch
• Grid-scale condensation with a modified Sundqvist scheme (consun)
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Environment CanadaCanadian Meteorological Centre
Environnement CanadaCentre météorologique canadien
Priorities for Satellite Data
• ATOVS: Improved access to Level 1B data (new link with Nesdis), Canadian HRPT data (processing with AAPP) for regional model (cut-off of T+90 min.) and EARS
• SSM/IS
• QuikScat and Envisat (AATSR), both now received, tests underway
• MODIS Products (Winds, SST, LAI, Cloud), winds now tested. A more “operational like” status of NOAA wind product would be very useful.
• METEOSAT and GOES-9 Imagery (MTSAT) (CSR product)
• High Density AMV for GOES9/MTSAT, GOES 9 soon in parallel
• AIRS (assimilation now being tested)
• METOP (IASI,…)