National Action Plan for Climate Change Support for the National Water Mission

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

SATLUJ PUNJAB –LOWER CATCHMENTS o Groundwater 45% above sustainable levels o Sustainable GW-key to buffer against CC o Conjunctive SW and GW management By mid century: + 2 degree C Precipitation: % mainly runoff, limited recharge Evapotranspiration: little change Increased variability of rainfall patterns

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 WATER QUANTITY very limited surface water, groundwater is the key resource and groundwater overexploitation in some parts the yield of surface water and groundwater is however more than requirements, most of this water is lost as the rainfall during to 3-4 months of rainy season WATER QUALITY WQ issues Kshipra river and some tributary streams very heavily polluted and go dry for periods-no base flow 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

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 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 % Increased variability in rainfall patterns Sea Level rise of 0.3 metres

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. Q: How to plan for climate change?

IWRM UNIT

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

CWCRBOsInstitutesStates 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 √ Strategic framework plan for India Water Systems

Eight year programme