@article{fdi:010074120, title = {{H}ydroclimatic change disparity of {P}eruvian {P}acific drainage catchments}, author = {{R}au, {P}. and {B}ourrel, {L}uc and {L}abat, {D}. and {F}rappart, {F}. and {R}uelland, {D}. and {L}avado, {W}. and {D}ewitte, {B}oris and {F}elipe, {O}.}, editor = {}, language = {{ENG}}, abstract = {{P}eruvian {P}acific drainage catchments only benefit from 2% of the total national available freshwater while they concentrate almost 50% of the population of the country. {T}his situation is likely to lead a severe water scarcity and also constitutes an obstacle to economic development. {C}atchment runoff fluctuations in response to climate variability and/or human activities can be reflected in extreme events, representing a serious concern (like floods, erosion, droughts) in the study area. {T}o document this crucial issue for {P}eru, we present here an insightful analysis of the water quantity resource variability of this region, exploring the links between this variability and climate and/or anthropogenic pressure. {W}e first present a detailed analysis of the hydroclimatologic variability at annual timescale and at basin scale over the 1970-2008 period. {I}n addition to corroborating the influence of extreme {E}l {N}ino events over precipitation and runoff in northern catchments, a mean warming of 0.2 degrees {C} per decade over all catchments was found. {A}lso, higher values of temperature and potential and actual evapotranspiration were found over northern latitudes. {W}e chose to apply the {B}udyko-{Z}hang framework that characterizes the water cycle as a function of climate only, allowing the identification of catchments with significant climatic and anthropogenic influence on water balance. {T}he {B}udyko-{Z}hang methodology revealed that 11 out of 26 initial catchments are characterized by low water balance disparity related to minor climatic and anthropogenic influence. {T}hese 11 catchments were suitable for identifying catchments with contrasting change in their hydroclimatic behavior using the {B}udyko trajectories. {O}ur analysis further reveals that six hydrological catchment responses can be characterized by high sensitivity to climate variability and land use changes.}, keywords = {{PEROU} ; {PACIFIQUE}}, booktitle = {}, journal = {{T}heoretical and {A}pplied {C}limatology}, volume = {134}, numero = {1-2}, pages = {139--153}, ISSN = {0177-798{X}}, year = {2018}, DOI = {10.1007/s00704-017-2263-x}, URL = {https://www.documentation.ird.fr/hor/fdi:010074120}, }