Hydrological Research at IIT Kharagpur

1
Hydrological Research at IIT Kharagpur

• Rajendra Singh
• Agricultural Food Engineering Department
• Indian Institute of Technology Kharagpur

2
Outline
Presentation Outline

• Hydrological Modelling
• Watersheds
• Irrigated Commands
• Flood Modelling
• Software Web Resources

3
Hydrological Modelling of Watersheds

• Hydrological Water Balance Modelling using MIKE
  SHE for Developing Irrigation Plan

• Guptamani Watershed
• Area- 694 ha
• Part of 66-B sub-watershed of Kangsabati
  catchment
• Rainfall 1200 mm
• Tank of 17 ha-m capacity for supplemental
  irrigation
• Agriculture (255 ha)
• Main crop - Paddy

General features of Watershed
4
Hydrological Modelling of Watersheds
Hydrological Water Balance Modelling using MIKE
SHE for Developing Irrigation Plan

• Paddy Yield 70 of Ym
• (if no supplemental irrigation)
• Irrigation Requirement
• Upstream 490mm
• Downstream 340mm
• Tank Capacity
• Could be increased to 44 ha-m

5
Modelling Hydrological Impacts of Continuous
Contour Trench System
Hydrological Modelling of Watersheds
Study Area

• Model Watershed, Akola Agric. Univ.
• Two Micro Watersheds
• One treated with CCT
• One Control

6
Modelling Hydrological Impacts of Continuous
Contour Trench System
Hydrological Modelling of Watersheds

• MIKE SHE model was calibrated and validated

Water Balance Components
7
Hydrological Modelling of Watersheds
Hydrological Modeling of Panchet Catchment using
AVSWAT-2000

• Reservoir Sedimentation Rates under Different
  Management Scenarios

Characteristics Damodar catchment 22015
km2 Panchet catchment 5573 km2 Average annual
rainfall 1270 mm Major Soils Sandy loam and
Loamy Sand Land Use Agricultural and Gully
lands Major Crop Rice
8
Hydrological Modelling of Watersheds
Hydrological Modeling of Panchet Catchment using
AVSWAT-2000

• SCENARIOS
• A Validated model, with weighted
  conservation practice value
• B Bund across all rice growing lands
• C Bund across all agricultural lands including
  rice growing lands
• D
• Forestation of all pasture lands and no
  conservation practices are carried out on
  agricultural lands
• E
• Bunds across all cultivable lands and
  forestation of pasture and gully lands

9
Hydrological Modelling of Watersheds
Geomorphology-based Model GIUH_CAL

• Event-based model
• Derivation of DRH from GIUH and Rainfall
• Input parameters
• 1. Bifurcation ratio
• 2. Length ratio OR Basic Geomorphological
  Parameters
• 3. Area ratio
• Calibration parameters
• 1. Mean holding time, KB
• 2. Initial degree of saturation of the soil, Sr

10
Hyetograph
Hydrological Modelling of Watersheds
GIUH_CAL Test Results
Hydrograph
Aug-06
Aug-16
ME 0.79 CRM - 0.22
ME 0.82 CRM - 0.21
11
Hydrological Modelling of Watersheds
Physically Based Model HYDROMOD
12
Hydrograph
Hydrological Modelling of Watersheds
HYDROMOD Test Results
Cumulative Mass Curve
Aug-06
Aug-16
ME 0.95 CRM - 0.02
ME 0.63 CRM 0.03
13
Hydrological Modelling of Irrigated Commands
Opti-Simulation Modelling of the Main Canal System

Optimization module (MATLAB)

Hydrodynamic state of canal demand
Canal releases
Controller
Canal releases
Demand
Hydraulic module (MIKE 11)
Hydrological module (MIKE SHE)
Hydrodynamic state of canal system
Irrigation water applied
Integrated Opti-Simulation Model
14
Hydrological Modelling of Irrigated Commands
Opti-Simulation Modelling of the Main Canal System
RIGHT BANK MAIN CANAL SYSTEM (RBMC) Total
CCA 88, 867 ha Design discharge 79.18
cumec Total length 136.90 km Number of
RBMC - Nine Distributaries BTMC - Five TSMC
- Twenty two -------------------- Thirty six

• Index Map of Kangsabati Irrigation Project

15
Hydrological Modelling of Irrigated Commands
Opti-Simulation Modelling of the Main Canal System
MIKE 11 and MIKE SHE Simulation (MMS) Integrated
Opti-Simulation (IOS)

• Adequacy 0.65 (MMS) 0.71 (IOS)
• Equity 0.32 (MMS) 0 .22 (IOS)
• Dependability 0.62 (MMS) 0.49 (IOS)

COMPARISON OF TOTAL SUPPLY AND DEFICIT VOLUMES IN
DIFFERENT YEARS FOR MMS AND IOS CASES
16
Hydrological Modelling of Irrigated Commands
IRCIM Integrated Reservoir-based Canal
Irrigation Model


17
Hydrological Modelling of Irrigated Commands
IRCIM Integrated Reservoir-based Canal
Irrigation Model


18
Hydrological Modelling of Irrigated Commands
GIS Integrated Irrigation Scheduling Model


19
Hydrological Modelling of Irrigated Commands
GIS Integrated Irrigation Scheduling Model
Spatial variation of seasonal deep percolation
20
Flood Forecasting
Flood Forecasting Using Soft Computing Techniques

• ANN, Neuro-Fuzzy and Neuro-GA Models
• Jamtara gauging site of Ajay river basin in
  Jharkhand
• Floods could be forecasted successfully for 3 h
  and 6 h lead times

21
Flood Inundation Modelling
Flood Inundation Modeling Using Mike Flood

• Delta region of Mahanadi river basin
• The developed model is being used to assess the
  flood hazard and flood risk in the floodplains

22
Software and Web Resources
CanalMod Hydraulic Simulation Model


23
Software and Web Resources
CanalMod Hydraulic Simulation Model
Comparison of CanalMod HEC-RAS
Second irrigation- 1995
First irrigation- 1995
18th Sep. 1995
10th Sep. 1995
24
Software and Web Resources
WDSCM - River Basin Model
25
Software and Web Resources
WDSCM - River Basin Model
26
Software and Web Resources
Hydrologic_Calculator Hydrological Analysis
Model

• Features
• Capability/Versatility
• Covers analysis of major hydrologic
  processes/data
• Multiple options for analysis

27
Software and Web Resources
SCS_Designer Soil Conservation Structure
Design Model

• Structures Supported
• Bunds
• Retaining wall
• Terraces
• Grassed waterways
• Permanent gully control structures
• Farm pond
• Earthen dam

28
Software and Web Resources
DSS_ET - Decision Support System for Estimating
Reference Crop Evapotranspiration

• Supports 22 well-established and widely used ETo
  methods
• Ranks all applicable methods for a given climatic
  and data availability conditions
• Checks input data, Handles missing data, Displays
  summary etc.
• Imports data from standard IMD file format

29
Software and Web Resources
30
Agro-Ecological Regions Monthly Irrigation Map
Software and Web Resources
(August)
31
Software and Web Resources
32
Software and Web Resources
Soil Info System of West Bengal
33
Software and Web Resources
Soil Info System of West Bengal
34
Conclusion
miles to go ....
Robert Frost stopping by woods on a snowy
evening