Bureau of Meteorology Annual R&D Workshop, 25 November 2019

Water Security in the Murray−Darling Basin

Professor Rob Vertessy University of and Chair, MDBA Advisory Committee on Social, Economic and Environmental Sciences (ACSEES)

Where is water security a problem? Future projections of global rainfall changes Global patterns of rainfall elasticity Key facts

24 December 2019

24 December 2019 MDB Sustainable Diversion Limit

Note: The SDL Adjustment Process reduces this target by 605 GL 2010 estimates of future water availability across the MDB

Source: MDBA (2010) Water availability in the Murray Darling Basin – An update of the CSIRO Murray-Darling Basin Sustainable Yields Assessment Continuing drought in the northern MDB

Menindee and the lower Darling fish deaths Murray - Darling Basin Government Storages 4 Jack Taylor (10 GL) 13 November 2019 4 Beardmore (82 GL)

Chinchilla Current Storage Volume 3 53 (9.8 GL)

Northern Basin Maranoa River 5 Cooby Lachlan Condamine ! River (21 GL)

Southern Basin ! Moonie River 5 Leslie ! ! (106 GL) The assessment of water in storage does not include water in ! Warrego private storage. Please note, if the current storages volume River ! is higher than the total storage capacity, this is due to surcharge Calgoa 2 Coolmunda levels. Figures in bracket refer to storage capacity in gigalitres. River ! (69 GL) The total storage capacity published for LowerLakes is an ! approximate value. Gywdir Narran River River ! 9 Glenlyon

Namoi 14 (254 GL) River ! ! Darling Macquarie (312 GL) River River ! 112 (1,361 GL)

19 ! 10 ! (103 GL) Bogan ! River (425 GL) 8 Splitrock Dam ! (397 GL) ! ! 111 Murray River Murrumbidge (368 GL) 75 11 River ! (1,188 GL) Menindee ! ! (1,731 GL) 7 ! (36 GL) 513 ! ! ! 883 ! ! ! ! 208 (677 GL) ! Dam ! Goulburn (1,631 GL) (1,220 GL) River 1,954 344 LowerLakes (1,026 GL) (2,000 GL) 73 23 Cairn Curran Buffalo (147 GL) 58 (24 GL) 2,116 Tullaroop Dartmouth Dam (72 GL) 102 (3,856 GL) © Murray–Darling Basin Authority 2017 Eppalock 281 1,547 16 14 1,122 With the exception of the (305 GL) Commonwealth Coat of Arms, Waranga Basin Eildon Nillahcootie William hovell the MDBA logo, trademarks, (432 GL) (3,334 GL) (40 GL) (14 GL) (3,005 GL) this publication is provided under a Creative Commons Attribution 4.0 licence. (https://creativecommons.org/licenses/by/4.0) Climate change trends in the MDB

MBDA 2019 Where to next?