Discharge and Sediment Monitoring Project Regional meeting 14 January 2009 Presented by Ms. Iwona Conlan

Transcription

1 Discharge and Sediment Monitoring Project Draft Project Proposal Regional meeting 14 January 2009 Presented by Ms. Iwona Conlan 1

2 Aims for today 1. To discuss and agree on the overall monitoring plan 2. To discuss and agree on work priorities for

3 Budget Original budget (Draft project proposal) = US $1,000,600 Available IKMP funds in 2009 = US$ 500,000 Work priorities for 2009 need to be amended See pages 2 & 3 of the Amended work priorities for 2009 document 3

4 Project activities for Core Activities 9 activities in activities in 2010 Updated plan: 8 activities in Additional Activities 4 activities in activities in 2010 Summary can be found on p2 of the Amended work priorities for 2009 document Updated plan: 1 activity in

5 Prioritie s for 2009 Core Activities 1 & 2 1. Acquisition of all historical discharge and sediment transport data (summary p5; full p11-12) 2. Evaluation and analysis of all existing sediment data for the lower-mekong Basin (summary p6; full p13-14) Timeframe: Feb-Apr

6 Core Activity 3 Priority for 2009 Maintenance and repair of existing discharge monitoring equipment Timeframe: Feb-Apr 2009 Summary p7-8; Full p15-22 Tasks Calibrate current meters Purchase new counters where needed Repair or replace boats and engines Purchase echo-sounders for some stations Resume discharge measurements at Luang Prabang and Pakse 6

7 Priority for 2009 Core Activity 4 Maintenance and repair of existing ADCPs Send instruments to the USA (RD Instruments) Purchase new cables Purchase Differential GPS For quality controlled discharge measurements Summary p9-10; Full p instruments Nong Khai (x1), Cambodia (x2) Vietnam (x1) Timeframe: Feb-Apr

8 Priority for 2009 Core Activity 5 Training for operation of ADCP and DGPS for relevant stations Summary p11; Full p29-31 Content: Operation of equipment Quality control protocols Processing and analysing data Troubleshooting Equipment maintenance Qualified training provider (USGS) 4-5 days duration Training material translated for non-english speakers Timeframe: May or June

9 Priority for 2009 Core Activity 6 Establish suspended sediment sampling at selected mainstream gauging stations Summary p13; Full p Purchase new depthintegrated samplers 2. Repair or buy new winches 3. Introduce standardised sampling methodology and quality control protocols Timeframe: Feb-May 2009 US D-96 depth-integrated sampler 9

10 Stations for suspended sediment sampling Thailand 2009 Chiang Saen Nong Khai Mukdahan 2010 Chiang Khan Kong Chiam Lao PDR 2009 Luang Prabang Pakse No monitoring Thakhek 10

11 Stations for suspended sediment sampling cont Cambodia 2009 Stung Treng Kratie Phnom Penh Prek Dam Vietnam 2009 Tan Chao Chao Doc No monitoring Kampong Cham Koh Khel Neak Luong No monitoring Vam Nao My Thuan Can Tho 11

12 Priority for 2009 Core Activity 7 Upgrade and standardise laboratory methods for analysis of suspended sediment concentration Summary p15; Full p44-46 Standard method applied at all stations Suspended sediment concentration (ASTM D ) Filtration carried out at gauging station office Send filter paper to central/provincial lab for drying and weighing Basic training for lab staff Set up new lab in Vientiane (2010) Timeframe: March-June 2009 (start-up) 12

13 Priority for 2009 Core Activity 8 Training for sediment sampling and analysis techniques Summary p16; Full p47-49 Content: Operation of equipment Quality control protocols Processing and analysing data Troubleshooting Equipment maintenance Qualified training provider (USGS) 5 days duration Training material translated for non-english speakers Timeframe: May or June

14 Core Activity 9 Upgrade discharge measurement equipment to ADCP and DGPS at all stations (p50-52) Major benefits More accurate data Faster measurements Improve safety of operators Implemented in 2010 Estimated cost: $365,000 14

15 Core Activity 10 Establish discharge and sediment monitoring in key tributaries (p53-60) Timeframe: May Dec stations Major left bank tributaries in Lao PDR Se Kong, Se San, Sre Pok, Basin Tonle Sap tributaries Cambodia HYCOS Project stations in Thailand 15

16 Core Activity 11 Integrate water quality, discharge and sediment monitoring networks (p61-65) Timeframe: 2009 or 2010 Synchronised sampling in time (& place if feasible) 19 possible stations 2009: final site selection, meet operators, training, implementation 16

17 Priority for 2009 Additional Activity 1 Grain-size analysis of suspended sediment samples (Summary p18; Full p66-68) Collect additional samples during routine SS samples at 5 stations Chiang Saen - Kratie Luang Prabang - Prek Dam (Tonle Sap) Nong Khai Sampling 13 times during the year Send to external laboratory for analysis of grain size Possible locations: Bangkok & Singapore Timeframe: May 2009 April

18 Additional Activity 2 Pilot bedload measurements on the Mekong River (p69-77) Timeframe: sites: Chiang Saen, Nong Khai & Kratie 4 methods Bed-elevation changes Manual sampling Dune tracking ADCP bottom tracking Measurements made by discharge teams Assistance from international expert 18

19 Additional Activity 3 Bed-material survey of the lower-mekong River (p78-81) Sampling every ~4km Chiang Saen to Mekong River Delta Work carried out by discharge monitoring teams Timeframe:

20 Additional Activity 4 Baseline channel morphology surveys at proposed mainstream dam sites (2 sites) (p82-87) 1. Luang Prabang 2. Lat Sua & Ban Koum OR Sambor (Cambodia) Timeframe: 2010 Cross-section profiles Sampling of bed and bank materials Water surface slope surveys 20

21 Additional Activity Baseline channel morphology surveys at rock removal site (p88) 6. Quantification of floodplain sedimentation rates (p89) 7. Carbon transport measurements (p90) 21

22 Thank you 22