@article{fdi:010057197,
  title = {{S}patial interpolation of sub-daily air temperatures for snow and hydrologic applications in mesoscale {A}lpine catchments},
  author = {{J}abot, {E}. and {Z}in, {I}. and {L}ebel, {T}hierry and {G}autheron, {A}. and {O}bled, {C}.},
  editor = {},
  language = {{ENG}},
  abstract = {{A}ir temperature represents a key parameter for snow hydrology, as it controls the precipitation phase, as well as snow accumulation and snowmelt. {H}ydrological modelling in mountain regions like the {A}lps needs high-resolution temperature fields as input, preferably at sub-daily time steps. {T}he estimation of such temperature fields is challenging due to the spatio-temporal variability of environmental lapse rates (i.e. the decreasing of temperature with altitude) associated to complex topography. {I}n this study, 10 years (2000-2009) of data from about 200 temperature stations were interpolated at 0, 6, 12 and 18h {U}niversal {T}ime {C}oordinated ({UTC}) over a 1-km resolution grid covering a window of 71500 km2 in the {N}orthern {F}rench {A}lps. {T}hree different kriging methods were tested. {K}riging with elevation as external drift gave the best results in terms of mean absolute error, root mean square error and kriging standard deviation. {A}dding potential solar radiation as an additional external variable did not improve significantly the interpolation results. {P}rediction errors showed dependence on elevation and season, as well as on the time of interpolation, with globally better results in summer and daytime than in winter and night-time. {D}espite some shortcomings that are discussed in the paper, the interpolated temperature fields look promising for further snowmelt and snow cover dynamics modelling studies.},
  keywords = {temperature ; sub-daily time step ; environmental lapse rate ; kriging ; snow hydrology},
  booktitle = {},
  journal = {{H}ydrological {P}rocesses},
  volume = {26},
  numero = {17},
  pages = {2618--2630},
  ISSN = {1099-1085},
  year = {2012},
  DOI = {10.1002/hyp.9423},
  URL = {https://www.documentation.ird.fr/hor/fdi:010057197},
}