National Action Plan for Climate Change

SATLUJ PUNJAB –UPPER CATCHMENTS
Surface water resources inflow to Bhakra -major gap in information
To yr: 2050
Temperature + 2 degree C –higher in the upper catchment than on plains, may go higher
Precipitation and runoff some increase in precipitation, poor accuracy
Short term surface water –to 2020 no significant change; increased melt flows from glaciers, reduced melt from snow.
Medium to long term from 2020 o insufficient data to confirm trend o gradually effects of increased glacier and snow melts will affect inflows to Bhakra. o Bhakra can to an extent provide a buffer but glacier loss will be significant.
Require: glacier mass, snow and glacier melt response assessments

8000
7500
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8500
SATLUJ PUNJAB –LOWER CATCHMENTS
By mid century: + 2 degree C
Precipitation:+ 10-15% mainly runoff, limited recharge
Evapotranspiration: little change
Increased variability of rainfall patterns o Groundwater 45% above sustainable levels o Sustainable GW-key to buffer against CC o Conjunctive SW and GW management
Joga Distributary: Simulated Changes in Groundwater Storage
Reference
120 day rice
Direct seeded rice
Reduced losses
Rice Area reduced
Year of simulation

KHIPRA SUB BASIN MADHYA PRADESH
Climate Change : To 2050 :
Temperature: + 2 degree C
Precipitation: + about 15% increase in annual rainfall +23% in monsoon rains some decline in the non monsoon rains.
Increased variability of rainfall patterns
Present Issues
WATER QUANTITY + WATER QUALITY o limited surface water, groundwater is key resource o groundwater overexploitation in some parts o yield of surface water /groundwater more than requirements, o Most water is lost during rainy season o WQ issues river and tributary streams very heavily polluted and go dry for periods-no base flow

CAUVERY DELTA TAMIL NADU
Climate Change to 2050 :
+2 Degrees C
No significant change in annual rainfall
South west monsoon would reduce by 10%
North east monsoon would increase by 10-
15%
Increased variability in rainfall patterns
Sea Level rise of 0.3 metres
PRESENT ISSUES limited surface water during SW monsoon
•erratic, very intense NE monsoon causes flooding.
•saline intrusion, low lying land is unable to drain.
•groundwater used to supplement surface water -issues of overexploitation and salinity intrusion.
•parts of the coast are eroding river mouths suffer from blockages causing problems for fishing and flooding

• Need a systematic WR planning process for sub basins.
• Strategic Planning to follow IWRM, participative and iterative
• Plans must be mainstreamed into departments and districts for implementation
• CC. projections presently not adequate to make concrete planning decisions-but can support strategies and general direction.

IWRM UNIT
SPECIALIST INPUTS TO SUB-BASIN
PLANNING
-Climate Projections
-Hydrological Response at Basin Level to CC
-Basin Level Demand Assessment/Water
Balance
-Trans boundary Consultations
-Research

Strategic framework plan for three sub basins
Strengthen agriculture and marketing
Conjunctive water management conservation to reduce GW demand
Water resources and catchment management and GW recharge
Water quality, pollution
Satluj
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Kshipra
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Cauvery
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Flood and Salinity Management
Soft coastal protection
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Water supply and sanitation
Institutional development, regulatory and support measures
Reasearch Studies
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Glaciers & snow,
Conjunctive use
Conjunctive use Hydrodynamic, GW and coastal modelling

Strategic framework plan for India Water Systems
CWC RBOs Institutes States Support consultants
Data Management
Specialist Inputs to
Sub Basin Planning
Sub Basin Framework
Planning
Integration of Sub
Basin Plans into Basin
Plans
Support for
Institutional
Framework, Capacity building awareness
Sub Project
Implementation and
Investment
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Project Preparation and Design
Project Implemenation Phases Project 1
Project 2
Project 3