Franziska Temme, David Farías-Barahona, T. Seehaus, R. Jaña, J. Arigony-Neto, I. González, A. Arndt, T. Sauter, C. Schneider, J. Fürst
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Measurements include ablation\nand ice thickness observations at Schiaparelli Glacier as well as elevation\nchanges and flow velocity from satellite data for the entire study site.\nPerformance of simulated SMB is validated against geodetic mass changes and\nstake observations of surface melting. Results show that transferring SMB\nmodels in space is a challenge, and common practices can produce distinctly\nbiased estimates. Model performance can be significantly improved by the use\nof remotely sensed regional observations. Furthermore, we have shown that\nsnowdrift does play an important role in the SMB in the Cordillera Darwin, where strong and consistent winds prevail. The massif-wide average annual\nSMB between 2000 and 2022 falls between −0.28 and −0.07 m w.e. yr−1,\ndepending on the applied model. The SMB is mainly controlled by surface\nmelting and snowfall. The model intercomparison does not indicate one\nobviously best-suited model for SMB simulations in the MSM.\n","PeriodicalId":56315,"journal":{"name":"Cryosphere","volume":null,"pages":null},"PeriodicalIF":4.4000,"publicationDate":"2023-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":"{\"title\":\"Strategies for regional modeling of surface mass balance at the Monte Sarmiento Massif, Tierra del Fuego\",\"authors\":\"Franziska Temme, David Farías-Barahona, T. Seehaus, R. Jaña, J. Arigony-Neto, I. González, A. Arndt, T. Sauter, C. Schneider, J. Fürst\",\"doi\":\"10.5194/tc-17-2343-2023\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Abstract. This study investigates strategies for calibration of surface mass balance (SMB) models in the Monte Sarmiento Massif (MSM), Tierra del Fuego, with the goal of achieving realistic simulations of the\\nregional SMB. 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Strategies for regional modeling of surface mass balance at the Monte Sarmiento Massif, Tierra del Fuego
Abstract. This study investigates strategies for calibration of surface mass balance (SMB) models in the Monte Sarmiento Massif (MSM), Tierra del Fuego, with the goal of achieving realistic simulations of the
regional SMB. Applied calibration strategies range from a local
single-glacier calibration to a regional calibration with the inclusion of a
snowdrift parameterization. We apply four SMB models of different complexity. In this way, we examine the model transferability in space, the benefit of regional mass change observations and the advantage of increasing the
complexity level regarding included processes. Measurements include ablation
and ice thickness observations at Schiaparelli Glacier as well as elevation
changes and flow velocity from satellite data for the entire study site.
Performance of simulated SMB is validated against geodetic mass changes and
stake observations of surface melting. Results show that transferring SMB
models in space is a challenge, and common practices can produce distinctly
biased estimates. Model performance can be significantly improved by the use
of remotely sensed regional observations. Furthermore, we have shown that
snowdrift does play an important role in the SMB in the Cordillera Darwin, where strong and consistent winds prevail. The massif-wide average annual
SMB between 2000 and 2022 falls between −0.28 and −0.07 m w.e. yr−1,
depending on the applied model. The SMB is mainly controlled by surface
melting and snowfall. The model intercomparison does not indicate one
obviously best-suited model for SMB simulations in the MSM.
期刊介绍:
The Cryosphere (TC) is a not-for-profit international scientific journal dedicated to the publication and discussion of research articles, short communications, and review papers on all aspects of frozen water and ground on Earth and on other planetary bodies.
The main subject areas are the following:
ice sheets and glaciers;
planetary ice bodies;
permafrost and seasonally frozen ground;
seasonal snow cover;
sea ice;
river and lake ice;
remote sensing, numerical modelling, in situ and laboratory studies of the above and including studies of the interaction of the cryosphere with the rest of the climate system.