Water Science and Technology; Earth-Surface Processes
Abstract :
[en] The modeling of ice sheets in Earth system models (ESMs) is an active area of research with applications to future sea level rise projections and paleoclimate studies. A major challenge for surface mass balance (SMB) modeling with ESMs arises from their coarse resolution. This paper evaluates the elevation class (EC) method as an SMB downscaling alternative to the dynamical downscaling of regional climate models. To this end, we compare EC-simulated elevation-dependent surface energy and mass balance gradients from the Community Earth System Model 1.0 (CESM1.0) with those from the regional climate model RACMO2.3. The EC implementation in CESM1.0 combines prognostic snow albedo, a multilayer snow model, and elevation corrections for two atmospheric forcing variables: temperature and humidity. Despite making no corrections for incoming radiation and precipitation, we find that the EC method in CESM1.0 yields similar SMB gradients to RACMO2.3, in part due to compensating biases in snowfall, surface melt, and refreezing gradients. We discuss the sensitivity of the results to the lapse rate used for the temperature correction. We also evaluate the impact of the EC method on the climate simulated by the ESM and find minor cooling over the Greenland ice sheet and Barents and Greenland seas, which compensates for a warm bias in the ESM due to topographic smoothing. Based on our diagnostic procedure to evaluate the EC method, we make several recommendations for future implementations.
Disciplines :
Earth sciences & physical geography
Author, co-author :
Sellevold, Raymond; Geoscience and Remote Sensing, Delft University of Technology, Delft, Netherlands
Van Kampenhout, Leonardus; Institute for Marine and Atmospheric Research Utrecht, Utrecht University, Utrecht, Netherlands
Lenaerts, Jan T.M. ; Department of Atmospheric and Oceanic Sciences, University of Colorado Boulder, Boulder, United States
Noël, Brice ; Université de Liège - ULiège > Département de géographie > Climatologie et Topoclimatologie ; Institute for Marine and Atmospheric Research Utrecht, Utrecht University, Utrecht, Netherlands
Lipscomb, William H.; Climate and Global Dynamics Laboratory, National Center for Atmospheric Research, Boulder, United States
Vizcaino, Miren ; Geoscience and Remote Sensing, Delft University of Technology, Delft, Netherlands
Language :
English
Title :
Surface mass balance downscaling through elevation classes in an Earth system model: Application to the Greenland ice sheet
ERC - European Research Council NWO - Nederlandse Organisatie voor Wetenschappelijk Onderzoek
Funding text :
erlandse Organisatie voor Wetenschappelijk Onderzoek (grant no. ALWOP.2015.096), the European Research Council (grant no. ERC-StG-678145-CoupledIceClim), and the Netherlands Earth System Science Centre (OCW, grant no. 024.002.001).Acknowledgements. Computing and data storage resources, including the Cheyenne supercomputer (https://doi.org/10.5065/D6RX99HX), were provided by the Computational and Information Systems Laboratory (CISL) at the National Center for Atmospheric Research (NCAR). The material is based upon work supported by NCAR, which is a major facility sponsored by the National Science Foundation under cooperative agreement no. 1852977. The CESM project is supported primarily by the National Science Foundation. Brice Noël acknowledges funding from the Polar Program of NWO and NESSC. We thank the editor Xavier Fettweis and three anonymous reviewers, whose comments helped improve the manuscript.
Alexander, P. M., Tedesco, M., Fettweis, X., van de Wal, R. S. W., Smeets, C. J. P. P., and van den Broeke, M. R.: Assessing spatio-temporal variability and trends in modelled and measured Greenland Ice Sheet albedo (2000-2013), The Cryosphere, 8, 2293-2312, https://doi.org/10.5194/tc-8-2293-2014, 2014.
Alexander, P. M., LeGrande, A. N., Fischer, E., Tedesco, M., Fet-tweis, X., Kelley, M., Nowicki, S. M. J., and Schmidt, G. A.: Simulated Greenland Surface Mass Balance in the GISS Mod-elE2 GCM: Role of the Ice Sheet Surface, J. Geophys. Res.-Earth Surf., 124, 750-765, https://doi.org/10.1029/2018JF004772, 2019.
Bamber, J. L., Griggs, J. A., Hurkmans, R. T. W. L., Dowdeswell, J. A., Gogineni, S. P., Howat, I., Mouginot, J., Paden, J., Palmer, S., Rignot, E., and Steinhage, D.: A new bed elevation dataset for Greenland, The Cryosphere, 7, 499-510, https://doi.org/10.5194/tc-7-499-2013, 2013.
Bamber, J. L., Westaway, R. M., Marzeion, B., and Wouters, B.: The land Ice contribution to sea level during the satellite era, Environ. Res. Lett., 13, 063008, https://doi.org/10.1088/1748-9326/aac2f0, 2018.
Box, J. E. and Rinke, A.: Evaluation of Greenland Ice sheet surface climate in the HIRHAM regional climate model using automatic weather station data, J. Climate, 16, 1302-1319, https://doi.org/10.1175/1520-0442-16.9.1302, 2003.
Bromwich, D. H., Chen, Q.-S., Bai, L.-S., Cassano, E. N., and Li, Y.: Modeled precipitation variability over the Greenland Ice Sheet, J. Geophys. Res.-Atmos., 106, 33891-33908, https://doi.org/10.1029/2001JD900251, 2001.
Church, J. A., Clark, P. U., Cazenave, A., Gregory, J. M., Jevrejeva, S.,Levermann, A., Merrifield, M. A., Milne, G. A., Nerem, R. S., Nunn, P. D., Payne, A. J., Pfeffer, W. T., Stammer, D. and Unnikrishnan, A. S.: Sea level change, Climate Change 2013: The Physical Science Basis. Contribution of Working Group I to the Fifth Assessment Report of the Intergovernmental Panel on Climate Change, 1137-1216, 2013.
Cullather, R. I., Nowicki, S. M., Zhao, B., and Suarez, M. J.: Evaluation of the Surface Representation of the Greenland Ice Sheet in a General Circulation Model, J. Climate, 27, 4835-4856, https://doi.org/10.1175/JCLI-D-13-00635.1, 2014.
Dee, D. P., Uppala, S. M., Simmons, A. J., Berrisford, P., Poli, P., Kobayashi, S., Andrae, U., Balmaseda, M. A., Balsamo, G., Bauer, P., Bechtold, P., Beljaars, A. C. M., van de Berg, L., Bid-lot, J., Bormann, N., Delsol, C., Dragani, R., Fuentes, M., Geer, A. J., Haimberger, L., Healy, S. B., Hersbach, H., Hólm, E. V., Isaksen, L., Kållberg, P., Köhler, M., Matricardi, M., McNally, A. P., Monge-Sanz, B. M., Morcrette, J.-J., Park, B.-K., Peubey, C., de Rosnay, P., Tavolato, C., Thépaut, J.-N., and Vitart, F.: The ERA-Interim reanalysis: configuration and performance of the data assimilation system, Q. J. Roy. Meteorol. Soc., 137, 553-597, https://doi.org/10.1002/qj.828, 2011.
Ettema, J., Van Den Broeke, M. R., Van Meijgaard, E., Van De Berg, W. J., Bamber, J. L., Box, J. E., and Bales, R. C.: Higher surface mass balance of the Greenland Ice sheet revealed by high-resolution climate modeling, Geophys. Res. Lett., 36, 1-5, https://doi.org/10.1029/2009GL038110, 2009.
Ettema, J., van den Broeke, M. R., van Meijgaard, E., and van de Berg, W. J.: Climate of the Greenland Ice sheet using a high-resolution climate model-Part 2: Near-surface climate and energy balance, The Cryosphere, 4, 529-544, https://doi.org/10.5194/tc-4-529-2010, 2010.
Fausto, R. S., Ahlstrøm, A. P., Van As, D., Bøggild, C. E., and Johnsen, S. J.: A new present-day temperature parameterization for Greenland, J. Glaciol., 55, 95-105, https://doi.org/10.3189/002214309788608985, 2009.
Fettweis, X.: The SMB Model Intercomparison (SMBMIP) over Greenland: first results, available at: http://hdl.handle.net/2268/232923 (last access: 27 November 2019), 2018.
Fettweis, X., Box, J. E., Agosta, C., Amory, C., Kittel, C., Lang, C., van As, D., Machguth, H., and Gallée, H.: Reconstructions of the 1900-2015 Greenland Ice sheet surface mass balance using the regional climate MAR model, The Cryosphere, 11, 1015-1033, https://doi.org/10.5194/tc-11-1015-2017, 2017.
Fischer, R., Nowicki, S., Kelley, M., and Schmidt, G. A.: A system of conservative regridding for ice-Atmosphere coupling in a General Circulation Model (GCM), Geosci. Model Dev., 7, 883-907, https://doi.org/10.5194/gmd-7-883-2014, 2014.
Flanner, M. G. and Zender, C. S.: Linking snowpack microphysics and albedo evolution, J. Geophys. Res.-Atmos., 111, D12208, https://doi.org/10.1029/2005JD006834, 2006.
Flato, G. M.: Earth system models: an overview, Wiley Interdisciplinary Reviews: Clim. Change, 2, 783-800, https://doi.org/10.1002/wcc.148, 2011.
Franco, B., Fettweis, X., Lang, C., and Erpicum, M.: Impact of spatial resolution on the modelling of the Greenland Ice sheet surface mass balance between 1990-2010, using the regional climate model MAR, The Cryosphere, 6, 695-711, https://doi.org/10.5194/tc-6-695-2012, 2012.
Fyke, J. G., Weaver, A. J., Pollard, D., Eby, M., Carter, L., and Mackintosh, A.: A new coupled Ice sheet/climate model: description and sensitivity to model physics under Eemian, Last Glacial Maximum, late Holocene and modern climate conditions, Geosci. Model Dev., 4, 117-136, https://doi.org/10.5194/gmd-4-117-2011, 2011.
Fyke, J. G., Vizcaíno, M., Lipscomb, W., and Price, S.: Future climate warming increases Greenland Ice sheet surface mass balance variability, Geophys. Res. Lett., 41, 470-475, https://doi.org/10.1002/2013GL058172, 2014a.
Fyke, J. G., Vizcaíno, M., and Lipscomb, W. H.: The pattern of anthropogenic signal emergence in Greenland Ice Sheet surface mass balance, Geophys. Res. Lett., 41, 6002-6008, https://doi.org/10.1002/2014GL060735, 2014b.
Goelzer, H., Huybrechts, P., Fürst, J., Nick, F., Andersen, M., Edwards, T., Fettweis, X., Payne, A., and Shannon, S.: Sensitivity of Greenland Ice Sheet Projections to Model Formulations, J. Glaciol., 59, 733-749, https://doi.org/10.3189/2013JoG12J182, 2013.
Hanna, E., Huybrechts, P., Janssens, I., Cappelen, J., Steffen, K., and Stephens, A.: Runoff and mass balance of the Greenland Ice sheet: 1958-2003, J. Geophys. Res.-Atmos., 110, https://doi.org/10.1029/2004JD005641, 2005.
Hanna, E., Huybrechts, P., Cappelen, J., Steffen, K., Bales, R. C., Burgess, E., McConnell, J. R., Peder Steffensen, J., Van den Broeke, M., Wake, L., Bigg, G., Griffiths, M., and Savas, D.: Greenland Ice Sheet surface mass balance 1870 to 2010 based on Twentieth Century Reanalysis, and links with global climate forcing, J. Geophys. Res.-Atmos., 116, D24121, https://doi.org/10.1029/2011JD016387, 2011.
Hanna, E., Navarro, F. J., Pattyn, F., Domingues, C. M., Fet-tweis, X., Ivins, E. R., Nicholls, R. J., Ritz, C., Smith, B., Tulaczyk, S., Whitehouse, P. L., and Zwally, H. J.: Ice-sheet mass balance and climate change, Nature, 498, 51-59, https://doi.org/10.1038/nature12238, 2013.
Hartmann, D. L., Klein Tank, A. M., Rusticucci, M., Alexander, L. V., Brönnimann, S., Charabi, Y. A. R., Dentener, F. J., Dlugo-kencky, E. J., Easterling, D. R., Kaplan, A., Soden, B. J., Thorne, P. W., Wild, M., and Zhai, P.: Observations: Atmosphere and surface, Climate Change 2013 the Physical Science Basis: Working Group I Contribution to the Fifth Assessment Report of the Intergovernmental Panel on Climate Change, 9781107057, 159-254, https://doi.org/10.1017/CBO9781107415324.008, 2013.
Helsen, M. M., van de Wal, R. S. W., van den Broeke, M. R., van de Berg, W. J., and Oerlemans, J.: Coupling of climate models and Ice sheet models by surface mass balance gradients: application to the Greenland Ice Sheet, The Cryosphere, 6, 255-272, https://doi.org/10.5194/tc-6-255-2012, 2012.
Hourdin, F., Mauritsen, T., Gettelman, A., Golaz, J.-C., Balaji, V., Duan, Q., Folini, D., Ji, D., Klocke, D., Qian, Y., Rauser, F., Rio, C., Tomassini, L., Watanabe, M., and Williamson, D.: The Art and Science of Climate Model Tuning, B. Am. Me-teorol. Soc., 98, 589-602, https://doi.org/10.1175/BAMS-D-15-00135.1, 2017.
Hunke, E. C., Lipscomb, W. H., Turner, A. K., Jeffery, N., and Elliott, S.: CICE: the Los Alamos Sea Ice Model Documentation and Software User's Manual Version 4.1 LA-CC-06-012, T-3 Fluid Dynamics Group, Los Alamos National Laboratory, 675, 2010.
Hurrell, J. W., Holland, M. M., Gent, P. R., Ghan, S., Kay, J. E., Kushner, P. J., Lamarque, J. F., Large, W. G., Lawrence, D., Lindsay, K., Lipscomb, W. H., Long, M. C., Mahowald, N., Marsh, D. R., Neale, R. B., Rasch, P., Vavrus, S., Vertenstein, M., Bader, D., Collins, W. D., Hack, J. J., Kiehl, J., and Marshall, S.: The community earth system model: A framework for collaborative research, B. Am. Meteorol. Soc., 94, 1339-1360, https://doi.org/10.1175/BAMS-D-12-00121.1, 2013.
Jahn, A., Sterling, K., Holland, M. M., Kay, J. E., Maslanik, J. A., Bitz, C. M., Bailey, D. A., Stroeve, J., Hunke, E. C., and Lip-scomb, W. H.: Late-twentieth-century simulation of Arctic sea Ice and ocean properties in the CCSM4, J. Climate, 25, 1431-1452, 2012.
Kjeldsen, K. K., Korsgaard, N. J., Bjørk, A. A., Khan, S. A., Box, J. E., Funder, S., Larsen, N. K., Bamber, J. L., Colgan, W., van den Broeke, M., Siggaard-Andersen, M.-L., Nuth, C., Schomacker, A., Andresen, C. S., Willerslev, E., and Kjær, K. H.: Spatial and temporal distribution of mass loss from the Greenland Ice Sheet since AD 1900, Nature, 528, 396-400, 2015.
Lawrence, D. M., Oleson, K. W., Flanner, M. G., Thornton, P. E., Swenson, S. C., Lawrence, P. J., Zeng, X., Yang, Z.-L., Levis, S., Sakaguchi, K., Bonan, G. B., and Slater, A. G.: Parameterization improvements and functional and structural advances in Version 4 of the Community Land Model, J. Adv. Model. Earth Syst., 3, 1, https://doi.org/10.1029/2011MS00045, 2011.
Lenaerts, J. T. M., Medley, B., van den Broeke, M. R., and Wouters, B.: Observing and modeling Ice sheet surface mass balance, Rev. Geophys., 57, 376-420, https://doi.org/10.1029/2018RG000622, 2019.
Lipscomb, W. H., Fyke, J. G., Vizcaíno, M., Sacks, W. J., Wolfe, J., Vertenstein, M., Craig, A., Kluzek, E., and Lawrence, D. M.: Implementation and initial evaluation of the glimmer community Ice sheet model in the community earth system model, J. Climate, 26, 7352-7371, https://doi.org/10.1175/JCLI-D-12-00557.1, 2013.
Mouginot, J., Rignot, E., Bjørk, A. A., van den Broeke, M., Mil-lan, R., Morlighem, M., Noël, B., Scheuchl, B., and Wood, M.: Forty-six years of Greenland Ice Sheet mass balance from 1972 to 2018, P. Natl. Acad. Sci. USA, 116, 9239-9244, https://doi.org/10.1073/pnas.1904242116, 2019.
Neale, R. B., Richter, J., Park, S., Lauritzen, P. H., Vavrus, S. J., Rasch, P. J., and Zhang, M.: The Mean Climate of the Community Atmosphere Model (CAM4) in Forced SST and Fully Coupled Experiments, J. Climate, 26, 5150-5168, https://doi.org/10.1175/JCLI-D-12-00236.1, 2013.
Noël, B., van de Berg, W. J., van Meijgaard, E., Kuipers Munneke, P., van de Wal, R. S. W., and van den Broeke, M. R.: Evaluation of the updated regional climate model RACMO2.3: summer snowfall impact on the Greenland Ice Sheet, The Cryosphere, 9, 1831-1844, https://doi.org/10.5194/tc-9-1831-2015, 2015.
Noël, B., van de Berg, W. J., Machguth, H., Lhermitte, S., Howat, I., Fettweis, X., and van den Broeke, M. R.: A daily, 1 km resolution data set of downscaled Greenland Ice sheet surface mass balance (1958-2015), The Cryosphere, 10, 2361-2377, https://doi.org/10.5194/tc-10-2361-2016, 2016.
Noël, B., van de Berg, W. J., van Wessem, J. M., van Meij-gaard, E., van As, D., Lenaerts, J. T. M., Lhermitte, S., Kuipers Munneke, P., Smeets, C. J. P. P., van Ulft, L. H., van de Wal, R. S. W., and van den Broeke, M. R.: Modelling the climate and surface mass balance of polar Ice sheets using RACMO2-Part 1: Greenland (1958-2016), The Cryosphere, 12, 811-831, https://doi.org/10.5194/tc-12-811-2018, 2018.
Nowicki, S. M. J., Payne, A., Larour, E., Seroussi, H., Goelzer, H., Lipscomb, W., Gregory, J., Abe-Ouchi, A., and Shepherd, A.: Ice Sheet Model Intercomparison Project (ISMIP6) contribution to CMIP6, Geosci. Model Dev., 9, 4521-4545, https://doi.org/10.5194/gmd-9-4521-2016, 2016.
Overland, J., Hanna, E., Hanssen-Bauer, I., Kim, S.-J., Walsh, J. E., Wang, M., Bhatt, U. S., and Thoman, R. L.: Surface air temperature, Arctic report card, 2018.
Pithan, F. and Mauritsen, T.: Arctic amplification dominated by temperature feedbacks in contemporary climate models, Nat. Geosci., 7, 181-184, 2014.
Ran, J., Vizcaino, M., Ditmar, P., van den Broeke, M. R., Moon, T., Steger, C. R., Enderlin, E. M., Wouters, B., Noël, B., Reijmer, C. H., Klees, R., Zhong, M., Liu, L., and Fettweis, X.: Seasonal mass variations show timing and magnitude of meltwater storage in the Greenland Ice Sheet, The Cryosphere, 12, 2981-2999, https://doi.org/10.5194/tc-12-2981-2018, 2018.
Rutt, I. C., Hagdorn, M., Hulton, N. R. J., and Payne, A. J.: The Glimmer community Ice sheet model, J. Geophys. Res.-Earth Surf., 114, F2, https://doi.org/10.1029/2008JF001015, 2009.
Ryan, J. C., Hubbard, A., Stibal, M., Irvine-Fynn, T. D., Cook, J., Smith, L. C., Cameron, K., and Box, J.: Dark zone of the Green-land Ice Sheet controlled by distributed biologically-Active impurities, Nat. Commun., 9, 1065, 2018.
Schmidt, G. A., Bader, D., Donner, L. J., Elsaesser, G. S., Go-laz, J.-C., Hannay, C., Molod, A., Neale, R. B., and Saha, S.: Practice and philosophy of climate model tuning across six US modeling centers, Geosci. Model Dev., 10, 3207-3223, https://doi.org/10.5194/gmd-10-3207-2017, 2017.
Screen, J. A. and Simmonds, I.: The central role of diminishing sea Ice in recent Arctic temperature amplification, Nature, 464, 1334-1337, https://doi.org/10.1038/nature09051, 2010.
Screen, J. A., Deser, C., and Simmonds, I.: Local and remote controls on observed Arctic warming, Geophys. Res. Lett., 39, L10709, https://doi.org/10.1029/2012GL051598, 2012.
Sellevold, R.: Data and scripts for Surface mass balance downscaling through elevation classes in an Earth System Model: application to the Greenland Ice sheet, https://doi.org/10.5281/zenodo.3479410, 2019.
Serreze, M. C. and Francis, J. A.: The arctic amplification debate, Clim. Change, 76, 241-264, https://doi.org/10.1007/s10584-005-9017-y, 2006.
Serreze, M. C. and Stroeve, J.: Arctic sea Ice trends, variability and implications for seasonal Ice forecasting Subject Areas: Author for correspondence, Phil. Trans. R. Soc., 373, 1-16, 2015.
Shepherd, A., Ivins, E. R., A, G., Barletta, V. R., Bentley, M. J., Bettadpur, S., Briggs, K. H., Bromwich, D. H., Forsberg, R., Galin, N., Horwath, M., Jacobs, S., Joughin, I., King, M. A., Lenaerts, J. T. M., Li, J., Ligtenberg, S. R. M., Luckman, A., Luthcke, S. B., McMillan, M., Meister, R., Milne, G., Mouginot, J., Muir, A., Nicolas, J. P., Paden, J., Payne, A. J., Pritchard, H., Rignot, E., Rott, H., Sorensen, L. S., Scambos, T. A., Scheuchl, B., Schrama, E. J. O., Smith, B., Sundal, A. V., van Angelen, J. H., van de Berg, W. J., van den Broeke, M. R., Vaughan, D. G., Velicogna, I., Wahr, J., Whitehouse, P. L., Wingham, D. J., Yi, D., Young, D., and Zwally, H. J.: A Reconciled Estimate of Ice-Sheet Mass Balance, Science, 338, 1183-1189, https://doi.org/10.1126/science.1228102, 2012.
Smith, R., Jones, P., Briegleb, B., Bryan, F., Danabasoglu, G., Dennis, J., Dukowicz, J., Eden, C., Fox-Kemper, B., and Gent, P.: The parallel ocean program (POP) reference manual ocean component of the community climate system model (CCSM) and community earth system model (CESM), Rep. LAUR-01853, 141, 1-140, 2010.
van Angelen, J. H., van den Broeke, M. R., Wouters, B., and Lenaerts, J. T.: Contemporary (1960-2012) Evolution of the Climate and Surface Mass Balance of the Greenland Ice Sheet, Surv. Geophys., 35, 1155-1174, https://doi.org/10.1007/s10712-013-9261-z, 2014.
Van den Broeke, M., Smeets, P., Ettema, J., and Munneke, P. K.: Surface radiation balance in the ablation zone of the west Greenland Ice sheet, J. Geophys. Res.-Atmos., 113, 1-14, https://doi.org/10.1029/2007JD009283, 2008.
van Kampenhout, L., Lenaerts, J. T. M., Lipscomb, W. H., Sacks, W. J., Lawrence, D. M., Slater, A. G., and van den Broeke, M. R.: Improving the Representation of Polar Snow and Firn in the Community Earth System Model, J. Adv. Model. Earth Syst., 9, 2583-2600, https://doi.org/10.1002/2017MS000988, 2017.
van Kampenhout, L., Rhoades, A. M., Herrington, A. R., Zarzy-cki, C. M., Lenaerts, J. T. M., Sacks, W. J., and van den Broeke, M. R.: Regional grid refinement in an Earth system model: impacts on the simulated Greenland surface mass balance, The Cryosphere, 13, 1547-1564, https://doi.org/10.5194/tc-13-1547-2019, 2019.
Van Tricht, K., Lhermitte, S., Gorodetskaya, I. V., and van Lipzig, N. P. M.: Improving satellite-retrieved surface radiative fluxes in polar regions using a smart sampling approach, The Cryosphere, 10, 2379-2397, https://doi.org/10.5194/tc-10-2379-2016, 2016.
Vizcaíno, M., Mikolajewicz, U., Jungclaus, J., and Schurgers, G.: Climate modification by future Ice sheet changes and consequences for Ice sheet mass balance, Clim. Dynam., 34, 301-324, https://doi.org/10.1007/s00382-009-0591-y, 2010.
Vizcaíno, M., Lipscomb, W. H., Sacks, W. J., Van Angelen, J. H., Wouters, B., and Van Den Broeke, M. R.: Greenland surface mass balance as simulated by the community earth system model. Part I: Model evaluation and 1850-2005 results, J. Climate, 26, 7793-7812, https://doi.org/10.1175/JCLI-D-12-00615.1, 2013.
Vizcaíno, M., Lipscomb, W. H., Sacks, W. J., and van den Broeke, M.: Greenland Surface Mass Balance as Simulated by the Community Earth System Model. Part II: Twenty-First-Century Changes, J. Climate, 27, 215-226, https://doi.org/10.1175/JCLI-D-12-00588.1, 2014.
Wientjes, I. G. M., Van de Wal, R. S. W., Reichart, G. J., Sluijs, A., and Oerlemans, J.: Dust from the dark region in the western ablation zone of the Greenland Ice sheet, The Cryosphere, 5, 589-601, https://doi.org/10.5194/tc-5-589-2011, 2011.
Wilton, D. J., Jowett, A., Hanna, E., Bigg, G. R., van den Broeke, M. R., Fettweis, X., and Huybrechts, P.: High resolution (1 km) positive degree-day modelling of Greenland Ice sheet surface mass balance, 1870-2012 using reanalysis data, J. Glaciol., 63, 176-193, https://doi.org/10.1017/jog.2016.133, 2017.
