Final Report: Activities for Working Group on Hydrological Services (2013-2016) Presenter: Sung Kim, Chairperson, WGHS RA II, skim@kict.re.kr Korea Institute of Civil Engineering and Building Technology Republic of Korea

Terms of Reference (1/2) (a) To provide assistance and advice to the president of the Association on all questions pertaining to the regional aspects of the Hydrology and Water Resources Programme; (b) To engage in and monitor the implementation of water-related activities documented in the RA II Strategic Operating Plan;  (c) To undertake activities relating to the Hydrology and Water Resources Programme as listed below; Water resources assessment Flood forecasting Drought Climate variability and changes Hydrometric and sediment observations Sediment disasters and mass movements 

Terms of Reference (2/2) (d) To cooperate with the Commission for Hydrology and other WMO bodies on activities and projects related to hydrology and water resources; (e) To seek cooperation with other regional bodies and organizations on issues related to the Hydrology and Water Resources Programme; (f) To actively contribute to the Global Framework for Climate Services through dedicated components in the identified theme areas of work during the next intersessional period 2013–2016; (g) To undertake activities related to the transfer of technology through the Hydrological Operational Multipurpose System and capacity-building in a cross-cutting manner;

Structure Chairperson: Sung Kim (ROK) Vice Chairperson: Mr Muhammad Riaz (Parkistan) Theme I: Water Resources Assessment - Ms GAO Ge (China) / - Ms Hwirin Kim (ROK) Theme II: Flood Forecasting - Dr Sergey Borshch (Russia) Theme III: Hydrological Aspects of Drought - Ms Irina Dergacheva (Uzbekistan) Theme IV: Hydrological Responses to Climate Variability and Change and Promotion of the Use of Climate Information by Water Managers - Mr WANG Guoqing (China) / - Dr Thuc Tran (Vietnam) Theme V: Improved Accuracy of Hydrometric and Sediment Observations including Space-based Technologies - Mr Youngsin Roh (ROK) Theme VI: Sediment Disasters and Mass Movements - Dr Tai-Hoon Kim (ROK)

1st Session At Seoul, Republic of Korea, from 30 September to 2 October 2014 WGHS members, WMO (Dr. Pilon), CHy (Mr. Liu) Developed Programme plans Final Report: http://www.wmo.int/pages/prog/hwrp/RA2/documents/RA-II_WGH_2014_FINAL_REPORT.pdf.

2nd Session At Gyeongju, Republic of Korea, 14 to 16 April 2015 WGHS members, WMO (Dr. Pilon), CHy (Mr. Liu), Panel (Dr. Grabs) Report activities, Adjust Work plans Final Report: http://www.wmo.int/pages/prog/hwrp/RA2/RAII-WGH-Gyeongju.php

3rd Session At Seoul, Republic of Korea, 25 to 27 October 2016 WGHS members, WMO (Dr. Pilon) Finalize activities and propose a new WGHS structure Final Report: submitted (22 Nov 2016)

7th World Water Forum At Gyeogju, 15th April 2015, Regional Session Title: Hydrological Services in Asia under Rapidly Changing Conditions WGHS members, WMO (Dr. Pilon), CHy (Mr. Liu), Panel (Dr. Grabs)

Theme I: Water Resources Assessment Assessment of basin-wide water resources availability, including use of climate predictions Collected some case studies in different basins on adapt to changes in water resources availability Implementation of Water Resources Assessment Draft technical report of water resources prediction on basin scale and case studies Develop Dynamic Water Resources Assessment Tool (DWAT) System development and pilot application in Republic of Korea (2016) Pilot application in WMO RA II (2017)

Theme II: Flood Forecasting Realization of WMO Flood Forecasting Initiatives Mekong River Commission FFGS South Asia FFGS Central Asia Region FFGS Improvement in hydrological warnings capability through enhanced and effective cooperation with other NMHSs Recommendations for the development of forecast methods for the spring floods forecasting on the base of meteorological information Guidelines for verification of hydrological forecasts Issuance of flood, flash and urban warnings and constantly improving upon them Flood forecasting and early warning system for rivers of the Black Sea shore of Caucasian region and the Kuban river basin

Theme III: Hydrological Aspects of Drought Monitoring and Warning Systems for Droughts Report prepared on review of potential drought indices leading to selection of Pedya drought index, Standardized Precipitation Index SPI, Drought index for snow storage Sw Uzhydromet established a National Centre for Monitoring of Drought Report includes an analysis of the conditions leading to low water and drought and an analysis of the frequency of low water and drought for Uzbekistan

Theme IV: Assessment of Changes in Climate Extremes, Their Impacts on Water Resources Activities (China) scientific studies of “climate changes for major rivers”, “sea level rise along China’s Coastal line”, and “Impact of climate change on water resources of China by using multiple GCMs projections” recommendation reports for “China’s adaptation strategy in water sector to climate change” (in Chinese) and “Sponge City Development of Zhenjiang City for better adaptation to climatic extremes” (in Chinese) learned Activities (Vietnam) scientific studies of “Changes in Climate Extremes and Impacts on the Natural Physical Environment”, “Climate Change and Sea level rise for Viet Nam”, and “Projection of extreme temperature and precipitation and their impacts on water resources in Dong Nai river basin and vicinity – Viet Nam”

Theme V: Improved Accuracy of Hydrometric and Sediment Observations Provide a technical report or guideline, based on case studies for various conditions hydrological observation techniques real-time discharge measurements (IRDIMS, Integrated Real-time Discharge Measurement System) sediment measurement and development of rating curves

Theme VI: Sediment Disasters and Mass Movements Develop the Integrated Management Platform that consists of systems, policies and international cooperation issuance of landslide/debris flow warning and consistently improving upon them improvement in capacity for water-related disaster management; and optimization of disseminating sediment disasters related information

Future Work Plan: New Structure of WGHS Closer relationship with new CHy structure (I chair, 1 vice-chair, 8 experts)  (1 chair, 1 vice-chair, 1 coordinator, 7 experts) 1. Expert Group on Coordination and Capacity Building (EG-CCB) - Theme I Water-related Disaster Risk Management - Theme II Provision of Hydrological Services 2. Expert Group on Measurements, Monitoring and Infosystems (EG-MMI) - Theme I Hydrometric Measurements - Theme II Mass Movements (Sediment Disasters and Debris Flows) 3. Expert Group on Hydrological Applications (EG-HA) - Theme I Water Resources Assessment reflecting Climate Change and Variability - Theme II Flood Forecasting -Theme III Hydrological Aspects of Drought

RA II Operating Plan for 2016-2019 WGHS KEY PERFORMANCE INDICATOR  DELIVERABLE  2.2.1 [EG-HA Theme II] Improvement in hydrological warnings capability through enhanced and effective cooperation with other NMHSs  3.3.1 Themes 1 & IV] Improvement in adaptation capacity of water resources systems in a changing climate [using Water Resources Assessment methodologies]  2.1.1 [EG-CCB Theme I] Improvement in capacity for water-related disaster management (Hydrological extremes) [EG-MMI Improvement in hydrometric measurements with quality and accuracy Issuance of flood, flash and urban flood warnings and constantly improving upon them 2.1.1 Issuance of landslide/debris flow warnings and constantly improving on them 3.3.1 [EG- CCB Development of national and regional capacity building programmes and related training activities for hydrological services

Consideration of Input to CHy-15 and 16th Session of RA II Major Accomplishments Sess-ion   Decision Dynamic Water Resources Assessment Tool (DWAT) CHy, RA II CHy: urges CHy to assess the Tool testing its ability and to provide guidance on its further development for global utility RA II: requests RA II Members to assess the Tool, testing its ability and to provide guidance to the RA II WGHS Chairperson on its further development for the benefit of Members Guidelines for Verification of Hydrological Forecasts CHy: urges CHy to review and assess the global utility of the Guidelines as a potential contribution to the WMO Flood Forecasting Initiative RA II: requests RA II Members to review and apply the verification procedures, reporting their results and views on the procedures to the RA II WGHS Chairperson Software tool for index velocity method CHy: urges CHy to assess the utility and applicability of the software tool and methods therein for measuring discharge under backwater and tidal influence RA II: requests RA II Members to test the Software Tool, reporting their results and views on the procedures to the RA II WGHS Chairperson

Thank you for your attention!