@article{fdi:010068126, title = {{D}eciphering the desiccation trend of the {S}outh {A}sian monsoon hydroclimate in a warming world}, author = {{K}rishnan, {R}. and {S}abin, {T}. {P}. and {V}ellore, {R}. and {M}ujumdar, {M}. and {S}anjay, {J}. and {G}oswami, {B}. {N}. and {H}ourdin, {F}. and {D}ufresne, {J}. {L}. and {T}erray, {P}ascal}, editor = {}, language = {{ENG}}, abstract = {{R}ising propensity of precipitation extremes and concomitant decline of summer-monsoon rains are amongst the most distinctive hydroclimatic signals that have emerged over {S}outh {A}sia since 1950s. {A} clear understanding of the underlying causes driving these monsoon hydroclimatic signals has remained elusive. {U}sing a state-of-the-art global climate model with high-resolution zooming over {S}outh {A}sia, we demonstrate that a juxtaposition of regional land-use changes, anthropogenic-aerosol forcing and the rapid warming signal of the equatorial {I}ndian {O}cean is crucial to produce the observed monsoon weakening in recent decades. {O}ur findings also show that this monsoonal weakening significantly enhances occurrence of localized intense precipitation events, as compared to the global-warming response. {A} 21st century climate projection using the same high-resolution model indicates persistent decrease of monsoonal rains and prolongation of soil drying. {C}ritical value-additions from this study include (1) realistic simulation of the mean and long-term historical trends in the {I}ndian monsoon rainfall (2) robust attributions of changes in moderate and heavy precipitation events over {C}entral {I}ndia (3) a 21st century projection of drying trend of the {S}outh {A}sian monsoon. {T}he present findings have profound bearing on the regional water-security, which is already under severe hydrological-stress.}, keywords = {{R}ecent trends in the {S}outh {A}sian {M}onsoon ; {H}igh-resolution model simulations ; {R}egional hydroclimatic response to climate change ; {ASIE} {DU} {SUD} ; {INDE}}, booktitle = {}, journal = {{C}limate {D}ynamics}, volume = {47}, numero = {3-4}, pages = {1007--1027}, ISSN = {0930-7575}, year = {2016}, DOI = {10.1007/s00382-015-2886-5}, URL = {https://www.documentation.ird.fr/hor/fdi:010068126}, }