# Presentation: 470254

## Overview of operations / coordination / communication 

**Environmental Modeling Center**
**NOAA/NWS/NCEP**
- USA

- _http://www.emc.ncep.noaa.gov/gmb/ens/THORPEX/TPARC_adaptive_proposal.doc_

- Winter T-PARC Workshop NCEP/NOAA
-  Oct 8-10,2008

**Yucheng Song & Zoltan Toth**

## Decision Making

**Identify High impact weather (HIW) events**** **
- Inputs from US field offices, research interest groups, Canada, Mexico in advance before 9:30AM EST (**14:30Z**)
**Sensitive Area Calculations (SACs)**
- SDMs collect all the information and pass to Yucheng Song
- Run NCEP ETKF targeting software, generating Siberia station table by 12PM EST    (**17:00Z **)
- DTS (ECMWF/UK MET OFFICE/METER FRANCE NCEP NRL)
- All targeting products ready by 12AM EST including DTS
**Select tracks and stations**
**Prepare PPT or PDF files to collect weather evidence for cases**
**     ****Winter storm numbers?**
**Decision making through Gotomeeting or Elluminate (3:00PMEST) **
**    **(Need to coordinate** **among participants**)**
- Fixed tracks for easier air traffic control (C-130)
-     Targeting 00Z
- Design flexible track for G-IV (X-Chat capability)
- Siberia stations table
- Decision made by 4:00PM EST (21:00Z)
-      eg. Jan 20, 21:00Z, targeting Jan 23,12Z, Jan 24, 00Z
-      (G-IV will take off 5 hrs earlier, i.e. 7:00Z)
**Decisions sent out by SDMs**
**CARCH and Roshydromet**
- 18-36 hours ahead of time
-  Flexibility of change with 24 hours notification

## G-IV track

## Signal propagation 

## C-130 tracks

## Canada and Mexico 

- Contacts:
- Chris Doyle (Canada)
- Ricardo Prieto González (Mexico)                     _[<](mailto:rprieto@tlaloc.imta.mx)__[rprieto@tlaloc.imta.mx](mailto:rprieto@tlaloc.imta.mx)__[>](mailto:rprieto@tlaloc.imta.mx)_
- Rene Lebato  (Mexico)

## Example of Flight requests

- Decision issued from NCEP at 16Z on 02/02/2009
-  FLIGHT REQUEST FOR 2009020400
-  A flight is requested from Yokota along track 84
-           with a control time of 04/00Z
-  Verification information is as follows:
-         Verification time: 2009020712
-         Latitude: 45
-         Longitude: 123
-         Priority: MEDIUM
-         Comments: PAC NW precip threat
- CARCAH Comments:
- Additional Comments:
- OUTLOOK FOR 2008020500 No flights are anticipated
- CARCAH comments: Not certain yet of a flight for the outlook period.
- Additional comments:

## Stations requested by winter T-PARC – 35 stations

- 31369 31538 31736  X 30554 23955  X 29612 29698  X32389 32540  X 25913 23330  X 28275 28698  X 31873 31977  X 32150 20674 29572  X 29862 28661 25428  X 21824 21946  X 24125 24266 24343  X 24641 24688  X 24726 24944 24959  X 25123 25400  X 30054 31004

## Sensitivity area traces back to Siberia

**Sensitivity area traces back to Siberia**

- NCEP ET KF products displayed on ECMWF DTS system

## Example of station requests

- Dear Sir/Madam,
- Please find the attached the extra observation request as part of the winter T-PARC project.
- Extra Observation Request based on 02/04/2009, 00 UTC run
- E-Mailed to =
- CC-ed to     =
- Station IDs  =  31369 29698 32389
**Requested Date and Time**  = 02/06/2009, 06, 18 UTC
- Winter T-PARC is an international THORPEX project aiming at improving NWP longer lead forecast by introducing extra observations on sensitive areas.
- For technical queries and questions, please contact:
- NCEP SDMS,       _[sdm@noaa.gov](mailto:sdm@noaa.gov)_
- Yucheng Song,  NCEP,   yucheng.song@noaa.gov

## Issues

- Is 12Z good for targeting?
- Real time paired runs?
- Data impact studies (inter-comparisons among different centers)