@article{fdi:010053049, title = {{D}etection of changes in glacial run-off in alpine basins : examples from {N}orth {A}merica, the {A}lps, central {A}sia and the {A}ndes}, author = {{C}asassa, {G}. and {L}opez, {P}. and {P}ouyaud, {B}ernard and {E}scobar, {F}.}, editor = {}, language = {{ENG}}, abstract = {{A}tmospheric warming and enhanced melting of glaciers is already resulting in changes in the glacial contribution to run-off in mountain basins around the world. {T}he enhanced melting of glaciers leads at first to increased run-off and discharge peaks and an increased melt season, while in the longer time frame glacier wasting can be so severe that it results in decreased run-off. {G}lacier basins with a decreasing run-off trend have been observed in south-central {B}ritish {C}olumbia, at low elevations in the {S}wiss {A}lps and in the central {A}ndes of {C}hile, which is probably a combined effect of reduced melt from seasonal snow cover as the snow line rises, and relevant glacier area losses. {I}n contrast, significant run-off increases are reported in {A}lberta, north-western {B}ritish {C}olumbia and {Y}ukon in {C}anada, in highly glacierized basins in the {S}wiss and {A}ustrian {A}lps, the {T}ianshan {M}ountains and {T}ibet in central {A}sia and in the tropical {A}ndes of {P}eru. {T}he run-off increase within these basins is closely related to observed temperature rise, indicating that there is an unequivocal signal of enhanced glacier melting under the present warming trends. {I}n future warming scenarios, glacier run-off should start to decrease even in high-altitude basins, affecting water availability.}, keywords = {glacial run-off ; glacier wasting ; climate change}, booktitle = {}, journal = {{H}ydrological {P}rocesses}, volume = {23}, numero = {1}, pages = {31--41}, ISSN = {0885-6087}, year = {2009}, DOI = {10.1002/hyp.7194}, URL = {https://www.documentation.ird.fr/hor/fdi:010053049}, }