Local recruitment: Hydraulic Modeller (Nepal nationals)

Expertise: Hydraulic Modeller
Expertise Group: Engineering

Consultant Source: National
TOR Keywords:

Objective and Purpose of the Assignment

The main objective of this intermittent consultancy assignment is to provide comprehensive technical
support to PIU, DHM for development of hydraulic model which will feed into the FFEWS.

Scope of Work

i) To assist in the development of continuous HEC-HMS hydrological model for all the priority river
basins.
ii) To support hydrological model validation for the past flooding events.
iii) To support PIU in the development of the 1D and 2D hydraulic and hydrodynamic models in the
priority river basins.
iv) To help PIU for 1D/2D model validation based on inundation survey data and satellite imagery
available
v) To facilitate the integration of HEC-HMS with HEC-RAS based on historical observation and ensembles
of NWP (Numerical Weather Prediction).
vi) To oversee integration of both models in the Delft FEWS
vii) To support in deriving hazard, exposure and risk maps for project area for reduction of casualties
and quick assets in the flood prone zone in the specified river basins.
viii) To guide, derive risk thresholds for the communities with application of warning and danger level
associated with impact-based forecasting using gauge to gauge and model-based forecasts.
ix) To guide and evaluate the technical adequacy of hydrological and hydraulic model developed by the
supplier.
x) To assist PIU in the conception of the model and providing inputs, comments and feedback to suppliers
regarding same.
xi) To monitor and shape the capacity building activities of the Supplier for DHM flood engineers and
managers regarding the modelling.

Detailed Tasks and/or Expected Output

1. Development Monitoring and Reporting:
   o Report periodically the development of model and gaps in deliverables required by FFEWS TOR Section 6
   of DHM.
   o Arrange frequent technical meeting with supplier and DHM for shaping the activities in appropriate
   direction.
   o Suggest supplier and DHM the best approach in developing a hydrological model suitable for floods.
   o Support the development of reliable 1D2D hydraulic model.
2. Model Setup Support:
   o Assist in setting up the modeling system
   o To aid seamless integration of hydrological model with the hydrodynamic model.
   o Support model setup in the Delft FEWS
   o
3. Supervision:
   o Supervise the survey works by supplier during topographic survey and development of terrain database.
   o Monitor the inundation survey works by supplier of the past flooding events.
   o Test the performance of hydraulic model developed by the supplier.
4. Support:
   o Suggest the best mechanism for validation of hydraulic model on the basis of TOR of the contract.
   o Propose a computationally efficient operational hydraulic model for high-resolution input data.
   o Provide guidance to the supplier regarding the integration Asset Management System (AMS) and sediment
   calculation in the hydraulic model part of the FFEWS system.
5. Monitoring:
   o Monitor the activities of modelling expert provided by the supplier to confirm the performance is in
   accordance with envisaged in TOR of the supplier.
   o Supervise and manage the general and on-the-job training required for DHM skill from the supplier.
   o Monitor the effectiveness of training to cope for the smooth operation of hydraulic model and
   accessories.

Minimum Qualification Requirements

• Master’s degree in Water Resource Engineering, or Hydraulic Engineering or River Engineering or
Hydrology or Hydro informatics or Hydraulic Structural Engineering related degree in Civil Engineering.
• At least 5 years of work experience in the government as a civil engineer or consultant regarding
modelling in the fields of irrigation, hydrology, hydropower, bridges, roadways, urban drainage, water
supply and sanitation or any other fields involving water resources.
• At least 2 projects completed.
• Prior experience with government agencies related to the same topic.
• Experience related to ensemble hydrological modeling considering NWP products.
• Knowledge of downscaling and bias correction of forecast dataset.
• Should have in depth knowledge of fluvial hydraulics, hydraulic modelling software, river hydraulics,
boundary conditions and related computer technologies.
• Strong communication skills in English; knowledge of Chinese language is advantageous.
• Should have a knowledge about geography of Nepal.
• Knowledge of third and fourth generation Programming languages would be an advantage.

Minimum General Experience: 10 Years
Minimum Specific Experience (relevant to assignment): 10 Years