@article{fdi:010040893,
  title = {{C}omputation of the space and time evolution of equilibrium-line altitudes on {A}ndean glaciers (10 degrees {N}-55 degrees {S})},
  author = {{C}ondom, {T}. and {C}oudrain, {A}nne and {S}icart, {J}ean-{E}mmanuel and {T}hery, {S}.},
  editor = {},
  language = {{ENG}},
  abstract = {{A} previous study of {F}ox [{F}ox, {A}.{N}. 1993. {S}nowline altitude and climate at present and during the {L}ast {P}leistocene {G}lacial {M}aximum in the {C}entral {A}ndes (5 degrees-28 degrees {S}). {P}h.{D}. {T}hesis. {C}ornell {U}niversity.] showed that for a fixed 0 degrees {C} isotherm altitude, the equilibrium-line altitude ({ELA}) of the {P}eruvian and {B}olivian glaciers from 5 to 20 degrees {S} can be expressed based on a log-normal expression of local mid-annual rainfall amount ({P}). {I}n order to extrapolate the function to the whole {A}ndes (10 degrees {N} to 55 degrees {S}) a local 0 degrees {C} isotherm altitude is introduced. {T}wo applications of this generalised function are presented. {O}ne concerns the space evolution of mean inter-annual {ELA} for three decades (1961-1990) over the whole {S}outh {A}merican continent. {A} high-resolution data set (grid data: 10' for latitude/longitude) of mean monthly air surface temperature and precipitation is used. {M}ean annual values over the 1961-1990 period were calculated. {O}n each grid element, the mean annual 0 degrees {C} isotherm altitude is determined from an altitudinal temperature gradient and mean annual temperature ({T}) at ground level. {T}he 0 '{C} isotherm altitude is then associated with the annual precipitation amount to compute the {ELA}. {U}sing computed {ELA} and the digital terrain elevation model {GTOPO}30, we determine the extent of the glacierised area in {A}ndean regions under modern climatic conditions. {T}he other application concerns the {ELA} time evolution on {Z}ongo {G}lacier ({B}olivia), where inter-annual {ELA} variations are computed from 1995 to 1999. {F}or both applications, the computed values of {ELA} are in good agreement with those derived from glacier mass balance measurements.},
  keywords = {andean glaciers ; equilibrium line altitude {ELA} ; precipitation ; temperature ; mass balance},
  booktitle = {},
  journal = {{G}lobal and {P}lanetary {C}hange},
  volume = {59},
  numero = {1-4},
  pages = {189--202},
  ISSN = {0921-8181},
  year = {2007},
  DOI = {10.1016/j.gloplacha.2006.11.021},
  URL = {https://www.documentation.ird.fr/hor/fdi:010040893},
}