Top Banner
Subwatershed Outlet (B1 project area) Hydrological Monitoring Institutional strengthening The newly established Tana Basin Organisation have been trained and equipped to carry out the monitoring programme. The institution will be crucial in future water resource management of the Tana Lake.
13

Subwatershed Outlet (B1 project area) Hydrological Monitoring

Feb 05, 2016

Download

Documents

venice_

Subwatershed Outlet (B1 project area) Hydrological Monitoring. Institutional strengthening The newly established Tana Basin Organisation have been trained and equipped to carry out the monitoring programme. The institution will be crucial in future water resource management of the Tana Lake. - PowerPoint PPT Presentation
Welcome message from author
This document is posted to help you gain knowledge. Please leave a comment to let me know what you think about it! Share it to your friends and learn new things together.
Transcript
Page 1: Subwatershed Outlet (B1 project area) Hydrological Monitoring

Subwatershed Outlet (B1 project area) Hydrological Monitoring

Institutional strengthening

The newly established Tana Basin Organisation have been trained and

equipped to carry out the monitoring programme. The institution will be crucial in future water resource management of

the Tana Lake.

Page 2: Subwatershed Outlet (B1 project area) Hydrological Monitoring

Subwatershed stationsTwo stations establisehd in 2012 – Baskura and Enkulal

Note width of channel and height of peak flood –

cableway required

Page 3: Subwatershed Outlet (B1 project area) Hydrological Monitoring

Parameters recorded in 2012: Rainfall, Secchi turbidity, Stage level and >250 sediment concentration samples collected by November 2012

Page 4: Subwatershed Outlet (B1 project area) Hydrological Monitoring

Subwatershed stations

Page 5: Subwatershed Outlet (B1 project area) Hydrological Monitoring

Subwatershed stations

Page 6: Subwatershed Outlet (B1 project area) Hydrological Monitoring

June July August September

Secchi Baskura 5.3 7.6

Secchi Enkulal 0.9 0.4 2.5 3.7

Rain Baskura 451 122

Rain Enkulal 273 484 400 345

Page 7: Subwatershed Outlet (B1 project area) Hydrological Monitoring

Road Construction – Status

1. Baskura: Monitoring started June 2012, Road design completed, 3.5 km PRIORITY!

2. Enkulal: Monitoring started June 2012, Road design completed, 4.5 km PRIORITY!

3. Jema: Road design completed, construction started by Woreda – reconsider need for hydrological station!

Page 8: Subwatershed Outlet (B1 project area) Hydrological Monitoring

Jema Outlet

Wide river Unstable banks

Frequent overflow

Not suitable site for hydrological station

Page 9: Subwatershed Outlet (B1 project area) Hydrological Monitoring

Alternative site further downstream

Page 10: Subwatershed Outlet (B1 project area) Hydrological Monitoring

Road Construction – Status

1. Baskura: Monitoring started June 2012, Road design completed, 3.5 km PRIORITY!

2. Enkulal: Monitoring started June 2012, Road design completed, 4.5 km PRIORITY!

3. Jema: Road design completed, construction started by Woreda – reconsider need for hydrological station!

4. Zefie: Federal Road construction plan, additionally 1.6 km required. Part of A1 hydrological network recommendation PRIORITY!

5. Kentay: BDU/Ghent established station in 2012 – data sharing. Long road (8.1 km) would be required, not priority.

Page 11: Subwatershed Outlet (B1 project area) Hydrological Monitoring

LOCATION OF SUBWATERSHED OUTLETS AND IDENTIFIED SITES

Page 12: Subwatershed Outlet (B1 project area) Hydrological Monitoring

Equipment procured

1 Saba double drum winch 5

2 Connection cable price 5m Long

3 Track cable 200m 1

4 Track cable 3000m 6mm

5 Crane 1

6 Drawing winch single 1

7 Single counter C Accessories 6

8 Suspended Sediment Sampler cable 2

9 Suspended Sediment Sampler cable 3

10 Tripod Single

11 Drawing Over 1

12 Crane trolley 5

13 Roller Protection 5

14 Track cable fixing 5

15 Cable Pulley for Suspension 5

16 Track cable 5

17 Accessories for cable 1

18 Personal computer for field 2

Page 13: Subwatershed Outlet (B1 project area) Hydrological Monitoring

Way Forward

• Installation of staff gauges at Zefie Outlet (Feb 2012)• Dialogue with BDU on Kentay outlet (site established in

2012 – data sharing to be ensured)• Dialogue with B1 component on road constrution at Jema

Outet – considering relocating station to more suitable location

• Installation of cableways when possible (extension phase)