@article{fdi:010086009,
  title = {{H}alving of {S}wiss glacier volume since 1931 observed from terrestrial image photogrammetry},
  author = {{M}annerfelt, {E}. {S}. and {D}ehecq, {A}maury and {H}ugonnet, {R}. and {H}odel, {E}. and {H}uss, {M}. and {B}auder, {A}. and {F}arinotti, {D}.},
  editor = {},
  language = {{ENG}},
  abstract = {{T}he monitoring of glaciers in {S}witzerland has a long tradition, yet glacier changes during the 20th century are only known through sparse observations. {H}ere, we estimate a halving of {S}wiss glacier volumes between 1931 and 2016 by mapping historical glacier elevation changes at high resolution. {O}ur analysis relies on a terrestrial image archive known as {T}err{A}, which covers about 86 % of the {S}wiss glacierised area with 21 703 images acquired during the period 1916-1947 (with a median date of 1931). {W}e developed a semi-automated workflow to generate digital elevation models ({DEM}s) from these images, resulting in a 45 % total glacier coverage. {U}sing the geodetic method, we estimate a {S}wisswide glacier mass balance of -0.52 +/- 0.09 m w.e. a(-1) between 1931 and 2016. {T}his equates to a 51.5 +/- 8.0 % loss in glacier volume. {W}e find that low-elevation, high-debriscover, and gently sloping glacier termini are conducive to particularly high mass losses. {I}n addition to these glacier-specific, quasi-centennial elevation changes, we present a new inventory of glacier outlines with known timestamps and complete attributes from around 1931. {T}he fragmented spatial coverage and temporal heterogeneity of the {T}err{A} archive are the largest sources of uncertainty in our glacier-specific estimates, reaching up to 0.50 m w.e. a(-1). {W}e suggest that the high-resolution mapping of historical surface elevations could also unlock great potential for research fields other than glaciology.},
  keywords = {{SUISSE} ; {ALPES}},
  booktitle = {},
  journal = {{C}ryosphere},
  volume = {16},
  numero = {8},
  pages = {3249--3268},
  ISSN = {1994-0416},
  year = {2022},
  DOI = {10.5194/tc-16-3249-2022},
  URL = {https://www.documentation.ird.fr/hor/fdi:010086009},
}