@article{fdi:010077412, title = {{M}ultidisciplinary study with quantitative analysis of isotopic data for the assessment of recharge and functioning of volcanic aquifers : case of {B}romo-{T}engger volcano, {I}ndonesia}, author = {{T}oulier, {A}. and {B}aud, {B}enjamin and de {M}ontety, {V}. and {L}achassagne, {P}. and {L}eonardi, {V}. and {P}istre, {S}. and {D}autria, {J}. {M}. and {H}endrayana, {H}. and {F}ajar, {M}. {H}. {M}. and {M}uhammad, {A}. {S}. and {B}eon, {O}. and {J}ourde, {H}.}, editor = {}, language = {{ENG}}, abstract = {{S}tudy region: {T}he {B}romo-{T}engger volcanic aquifer system, ({E}ast {J}ava, {I}ndonesia). {S}tudy focus: {A}ndesitic volcanic aquifers in {I}ndonesia are an important source of groundwater supply for the population. {T}he artesian flow from high discharge springs facilitates the access for irrigation and drinking water but continuously flowing artesian wells exert an increasing pressure on the groundwater resource. {G}iven the complexity of the volcanic edifice, a multidisciplinary approach including geological, hydrometeorological, hydrochemical and isotopic measurements was performed to characterise the hydrogeological functioning of the volcano's northern flank. {N}ew hydrogeological insights for the region: {T}wo main hydrogeological systems are identified: a system with perched aquifers in the lava flows and pyroclastic complex, supplying low discharge springs or infiltrating to a deep flow system. {T}he latter system is unconfined and provides groundwater to the downstream plain that hosts a confined multi-layer volcano-sedimentary aquifer. {T}he joint implementation of a quantitative isotopic approach and a groundwater budget allows characterising aquifer recharge along the whole volcano flank. {I}t is mainly controlled by the rainfall distribution that peaks around 1200 m elevation. {T}he caldera basin on the top of the volcano has a very limited contribution to recharge. {A} conceptual hydrogeological model is proposed and compared to the main concepts of volcanic islands. {T}his study is a first step for further scientific and management discussions to implement protection policies on the {B}romo-{T}engger aquifer system.}, keywords = {{H}ydrogeology ; {V}olcanic aquifer ; {A}ndesite ; {R}echarge ; {I}sotopes ; {H}ydrochemistry ; {Q}uantitative analysis ; {INDONESIE} ; {BROMO} {TENGGER} {VOLCAN}}, booktitle = {}, journal = {{J}ournal of {H}ydrology : {R}egional {S}tudies}, volume = {26}, numero = {}, pages = {art. 100634 [30 p.]}, year = {2019}, DOI = {10.1016/j.ejrh.2019.100634}, URL = {https://www.documentation.ird.fr/hor/fdi:010077412}, }