expansion of glof early warning system on mochhu & tarina ... · expansion of glof early...

Sutron Corporation | 22400 Davis Drive | Sterling, VA 20164 | 703.406.2800 | www.sutron.com | sales@sutron.com February 6, 2014

Expansion of GLOF Early Warning System on Mochhu & Tarina Sub-Basins in the Punatsangchhu Basin

BHUTAN GLOF EARLY WARNING SYSTEM

PROJECT NAME

Expansion of GLOF Early Warning System on Mochhu and Tarina Sub-basins in the Punatsangchhu Basin

PROJECT LOCATION Bhutan

PROJECT OWNER

Department of Hydromet Services, Ministry of Economic Affairs

PROJECT CONTACTS

Karma DupchuProject Managerkdupchu@gmail.com

Sangay TenzinDeputy Project Managersangaytenzin74@gmail.com

AWARD DATE April 2013

COMPLETION DATE December 2013

CONTRACT # DHMS/HD/GLOF-UN-DP/2012-13

VALUE $165,819

EQUIPMENT

2 AWS Stations 9210 XLite datalogger Iridium modem Dual orifice constant flow

bubbler Ultrasonic WS/WD sensor Barometric pressure sensor AT/RH sensor Tipping Bucket Rain Gauge Pyranometer

2 AWLS Stations 9210 XLite datalogger Iridium modem Dual orifice constant flow

bubbler Tipping Bucket Rain Gauge

1 SIREN STATION 9210 XLite datalogger Iridium modem Whelen OA-1 Siren

UPDATED CONTROL CENTER SOFTWARE Updated Tempest data

acquisition software Updated customized Siren

Control GUI Updated customized web

page for data display

TELEMETRY IRIDIUM‰

PROJECT DESCRIPTION

In September of 2011 Sutron completed installation of a GLOF Early

Warning System on the Phochhu and Punatsangchhu Rivers. The original

system consisted of 4 stream gauge stations, 2 hydromet stations and

17 siren stations along with a control center in Wangdi. Since that time

Bhutan’s Department of Hydro-met Services (DHMS) has determined that

an expansion of the system in the Moshhu and Tarina Sub-basins would be

prudent in order to improve the early warning system.

Expansion of this GLOF Early Warning System consists 5 new stations

comprised of 2 additional stream gauge stations, 2 additional hydromet

stations and 1 additional siren station. This brings the total system to 6

stream gauge stations, 4 hydromet stations and 18 siren stations.

The water level stations detect a sudden rise in stream levels or a sudden

drop in lake levels. If user-defined threshold values are exceeded, sirens

are activated that are located downstream and in the populated areas.

Tashithang Automatic Water Level Station (AWLS)

Sutron Expansion of GLOF Early Warning System on Mochhu and Tarina Sub-basins in the Punatsangchhu Basin 2

Sutron Corporation | 22400 Davis Drive | Sterling, VA 20164 | 703.406.2800 | www.sutron.com | sales@sutron.com

SYSTEM MAP

System Map

Tashithang Staff Gauge & Dual Orifice Termination

Yebessa Water Level Station with Tipping Bucket

Sutron Expansion of GLOF Early Warning System on Mochhu and Tarina Sub-basins in the Punatsangchhu Basin 3

Sutron Corporation | 22400 Davis Drive | Sterling, VA 20164 | 703.406.2800 | www.sutron.com | sales@sutron.com

Siren Station S-18 Construction

Siren Station S-18 Construction

Sutron Expansion of GLOF Early Warning System on Mochhu and Tarina Sub-basins in the Punatsangchhu Basin 4

Sutron Corporation | 22400 Davis Drive | Sterling, VA 20164 | 703.406.2800 | www.sutron.com | sales@sutron.com

Siren Control GUI

Sutron Expansion of GLOF Early Warning System on Mochhu and Tarina Sub-basins in the Punatsangchhu Basin 5

Sutron Corporation | 22400 Davis Drive | Sterling, VA 20164 | 703.406.2800 | www.sutron.com | sales@sutron.com

Custom Web Site

Completion of Training Sessions at Control Center in Wangdi