Societal and

EconomicApplications

Verification

Nowcasting

TropicalMeteorology

Research

MesoscaleWeather

ForecastingResearch

SynopticPredictabilities

(THORPEX)

WorldWeatherResearch

Programme

WORLD WEATHER RESEARCH PROGRAMME

Develops improved and cost effective weather forecasting techniques, with emphasis on high impact weather and promotes

their application among Member States.

SYNOPTIC PREDICTABILITIES (THORPEX)

A 10-year international research and development programme to accelerate improvements in the accuracy of one-day to two-week

high impact weather forecasts for the benefit of society, the economy and the environment.

MESOSCALE WEATHER FORECASTING RESEARCH

Promotes, organizes and/or endorses end-to-end weather research and development projects (RDPs) including

understanding of weather processes, improving forecasting techniques and the utility of forecast information with an emphasis

on high-impact weather.

TROPICAL METEOROLOGY RESEARCH

Promotes, Identifies and supports research initiatives relevant to the high-impact weather forecast requirements of NMHSs in

tropical and monsoon regions, and thus contribute to social and economic benefits by preventing or mitigating disasters via

imporved forecasts of tropical cyclones and anomalous monsoon rainfall.

NOWCASTING

Promotes and aids the implementation of nowcasting in the WWRP framework and within NMSs and among their end-users, including the potential use of numerical modelling and

assimilation of very high resolution data.

VERIFICATION

Facilitates the development and application of improved diagnostic verification methods to assess and enable

improvement of the quality of weather forecasts, including forecasts from numerical weather and climate models.

SOCIETAL AND ECONOMIC APPLICATIONS

Advances the science of the social and economic application of weather-related information and services and reviews and assists

in the development and promotion of societal and economic-related demonstration projects.

Contact: arep@wmo.int

TROPICAL METEOROLOGY RESEARCH

Promotes, Identifies and supports research initiatives relevant to the high-impact weather

forecast requirements of NMHSs in tropical and monsoon regions, and thus contribute to social and

economic benefits by preventing or mitigating disasters via imporved forecasts of tropical cyclones and anomalous monsoon rainfall.

WWRP-TMR

1. Tropical Cyclone Panel:– Expert Team on Observation, Processes and

Prediction– Expert Team on Landfall Processes– Expert Team on Climate Impacts on TCs– Limited Area NWP

2. Monsoon Panel:– Expert Team on Severe Monsoon Weather– Expert Team on Climate Impacts on Monsoon

Weather– Monsoon Activity Centers

Monsoon Panel Strategy

• Climate Scales: Global change, Decadal, Interannual, Seasonal, down to intraseasonal– Cooperate with and support WCRP monsoon activities– Cooperate with regional and international programs

(e.g., APEC Climate Center)– Research on Climate Impacts on local weather

• Weather Scales: Convection, Meso-, Synoptic, up to Intraseasonal– Regional and Local phenomena, effects of terrain– Top priority: Torrential rainfall, flooding– Joint efforts with TMRP/TC component

Activities

• Scientific and Training Workshops– Review state of the art, current issues and future directions– Facilitate researchers - forecasters interactions – Relating research results to forecasters on an ongoing basis– Update WMO Report on Monsoon for Member NMHSs.

• WMO Monsoon Activity Centres– New Delhi (IMD: South Asia)– Kuala Lumpur (MMS: Southeast Asia)– Beijing (CMA, East Asia)

• Encourage, endorse and support weather scale monsoon research through regional and international cooperation

Research Projects• Encourage, endorse and support weather scale monsoon

research through regional and international cooperation– Examples

• SCHeREX Southern China Heavy Rainfall EXperiment (MAPHRISC: CAMS/CMA, IAP/CAS)

• SoWMEX Southwest Monsoon EXperiment (CWB/NTU)

• TiMREX Terrain-induced Monsoon Rainfall EXperiment (NSF/NCAR)

• PHONE06-15 Pukyong Natl U - HyARC, Nagoya U Observation Network over East China Sea

– Relevant WWRP-TMR/TC Project• TCS08 Tropical Cyclone Structure 08 (ONR/NRL/NPS)

upstream conditions, surface fluxes, stability → blocking, Inversion, convection

Island Soundings

Taiwan Island

*

**

*Ship Sounding

DROPSONDE MISSIONS?

Early Season Meiyu front

sharp SST gradient → baroclinic boundary layer enhances LLJ?

SoWMEX

SoWMEX

/TiMREX

TiMREX

SCHeR

EX

SCHeR

EX

SoWMEX/TiMREXSCHeREX

Doppler radars

Dropsondes

Upsondes

Radiosondes

PHONE06-15Pukyong N U and HyARC, Nagoya U Observation

Network over East China Sea

• Nine-year observational project starting 2006 over southern part of South Korea, East China Sea, and Okinawa

• Purposes:– Formation mechanisms of precipitation systems associated

with the Meiyu/Baiu/Changma front and typhoons over ECS. – Research in short-term forecasting of heavy rainfalls (QPE

and QPF)• Observations and Modeling:

– Ground, sounding and satellite data– Doppler radars– Cloud resolving model

• Linkage– Coordination with SoWMEX/TiMREX being planned.

Typhoon

Doppler radars

Radiosondes

Meiyu-Baiu-Changma front

Early season Meiyu-Baiu Front

（ COBRA, NICT ）

Gosan Jindo

Sungsanpo

PHONE06-15

TCS08 Tropical Cyclone Structure 2008 Field Project

(WWRP/TMR Tropical Cyclone Research)

• August – September 2008• Equator – 30N, Asian coast to Dateline• Purposes:

– TC Formation in western North Pacific monsoon trough . – TC Evolution after Formation

• Observations– Ground, sounding and satellite data– Airborne wind Lidar and ELDORA Doppler radar

• Linkage– Coordination with the concurrent WWRP/THORPEX Pacific

Area Regional Campaign (T-PARC).

Workshops• IWM-4:

– Time: Late October 2008– Location: Beijing, China– Cosponsored by CLIVAR AAMP– Update WMO TD No. 1266: Global Monsoon Systems:

Research and Forecast. balance between climate and severe weather topics

• Possible:– 8th training workshop on monsoon (late 2008)– Workshop on QPE/QPF of TC and monsoon (2009)