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Course CU07821 Rural Water Management
Course CU04144Waterbeheersing
1
CU03287/6997Fluid dynamics
CU07821 Rural Water Management
CU04144Waterbeheersing
CU04778 Urban Water Management
CU03147Land and Water
1
Course Rural Water Management
Organisation of the course• CT and AET together.• Each week 1 class theory (Massink)• Each week 1 class course assignment, including
GIS and Sobek in groups• Theory in moodle.hz.nl• Key course: …. Given in class• Same material (powerpoints, ..) for Dutch and
English students. So sometimes also some dutch words. Some documents Dutch and English.
• Assignments in moodle (obligatory)
1
Course assignment
Prepare a “peilbesluit” (water level agreement) for the Jacobapolder at Noord Beveland
1
Course Rural Water Management
Marks• Final exam (>55)• Course assignment Jacobapolder (>55)
Assignments moodle included• No mid exam
1
2
Saturated and unsaturated zoneVerzadigde en onverzadigde zone
2
Groundwater – Surface water
2
Example Hydrological cycleNo Seepage
No Paving
evapotranspiration
Transpiration275 mm
Evaporation75 mm
350 mm
Atmosphere
Precipitation800 mm
Ground level
Surfacerunoff25 mm 250 mm
425 mm
Sea
700 mm
275 mm
Open surface water system
Soil Moisture orUnsaturated zone
crops
Capillary rise50 mm
Absorption by roots
Water table orGroundwater level
Percolation orrecharge475 mm
2
Example Hydrological cycle Californiaevapotranspiration
Evaporation Transpirationcrops
Precipitation
Surface runoff150 mm
irrigationsupplychannel
Absorption Moisture
Water table orGroundwater levelCapillary rise Percolation /
Recharge Groundwater flow to surface water (400 mm) to sea (550 mm), surface runoff included
Lemon orchard2
How to manage (control) a water system?
Which parts of the water system are adjustable by people?
Why manage (control) a water system?
3
• Preventing flooding (overstroming)• Preventing drying out (droogte)• Preventing salination (verzilting)• Optimal groundwater level for agriculture
and natureManaging the water system has a relationwith the use (function) of the land..
Why manage (control) a water system?
3
• Evaporation; ground surface and vegetation• Transpiration; type and density• Surface runoff; paving, slope• Discharge to sea; storage and pumps• Recharge groundwater; ground surface• Discharge to surface water; drainage, storage
Which parts of the water system are adjustable by people?
3
• Groundwater-drainage, trenches, ditches
• Surface water-level (weirs) (stuwen)-storage, dimensions (surface)-culverts (duikers)-pumping station (gemalen)
• Policy, legislation (wetgeving)
How to manage (control) a water system?
3
Water in the polder
• This course about water systems in the rural area• Water system (groundwater and surface water)
optimized for agriculture and nature.• Maximum production farmer• Water quality is a bit ignored, more focus on
quantity• Variation in time, precipitation and evaporation
.
4
Theory covered in this course
• Policy (Waternood, GGOR, HELP)• Precipitation and evaporation (Neerslag)• Groundwater flow and storage
(saturated and unsaturated zone)• Drainage• Weirs, open channel flow (stuwen)• Pumping stations (gemalen)• Culvert (duiker)• Maintenance (beheer en onderhoud)4
Exercise 1 Simple Peilgebied
• Peilgebied is an area with the same water levels surface water (when it is not raining).
• Info on moodle, assignment on moodle• Groups• Report directly in moodle.
4