@article{fdi:010090638,
  title = {{G}eodetic mass balance of {M}ýrdalsj{\¨o}kull ice cap, 1999-2021},
  author = {{B}ernat, {M}. and {B}elart, {J}. {M}. {C}. and {B}erthier, {E}. and {J}óhannesson, {T}. and {H}ugonnet, {R}. and {D}ehecq, {A}maury and {M}agnússon, {E}. and {G}unnarsson, {A}.},
  editor = {},
  language = {{ENG}},
  abstract = {- {T}he mass balance of {M} & yacute;rdalsjiikull, the fourth largest {I}celandic ice cap (520 km2 in 2019), has received less attention so far than the mass balance of the three largest ice caps, {V}atnajiikull, {H}ofsjiikull and {L}angjiikull. {H}ere, we used digital elevation models ({DEM}s) derived from the untapped {SPOT}5 archive (2003-2014), lidar data (2010), {P}l & eacute;iades imagery (2014-2021), aerial photographs from 1999 and the {A}rctic{DEM} dataset (2010-2018) to estimate the mass balance of {M} & yacute;rdalsjiikull. {A} pre-processing of the {DEM}s was first performed: co-registration, filtering and void interpolation. {T}hen, applying a {G}aussian {P}rocess ({GP}) regression, a spatially and temporally continuous elevation dataset was created, in 15x15 m resolution and 30-day increments over the time span 1999 to 2021. {V}olume and mass changes based on the {GP}-interpolated elevation dataset were computed and analysed in 5- to 6-year intervals between 1999 and 2021. {A}n average mass balance of -1.23 +/- 0.10 m w.e. a-1 was estimated for this time period, with a trend towards a less negative mass balance from -1.83 +/- 0.13 m w.e. a-1 (1999-2005) to -0.41 +/- 0.03 m w.e. a-1 (2016-2021). {A}n analysis of three climatically different catchments of {M} & yacute;rdalsjiikull showed a significant spatial variability in the estimated mass balance but a similar temporal variation.},
  keywords = {{ISLANDE}},
  booktitle = {},
  journal = {{J}okull},
  numero = {73},
  pages = {35--53},
  ISSN = {0449-0576},
  year = {2023},
  DOI = {10.33799/jokull2023.73.035},
  URL = {https://www.documentation.ird.fr/hor/fdi:010090638},
}