[{"author":[{"orcid":"0000-0001-7640-6152","id":"3caa3f91-1f03-11ee-96ce-e0e553054d6e","last_name":"Shaw","first_name":"Thomas","full_name":"Shaw, Thomas"},{"last_name":"Buri","full_name":"Buri, Pascal","first_name":"Pascal","id":"317987aa-9421-11ee-ac5a-b941b041abba"},{"id":"22a2674a-61ce-11ee-94b5-d18813baf16f","full_name":"Mccarthy, Michael","first_name":"Michael","last_name":"Mccarthy"},{"last_name":"Miles","full_name":"Miles, Evan S.","first_name":"Evan S."},{"id":"b28f055a-81ea-11ed-b70c-a9fe7f7b0e70","orcid":"0000-0002-5554-8087","last_name":"Pellicciotti","first_name":"Francesca","full_name":"Pellicciotti, Francesca"}],"type":"journal_article","day":"28","title":"Local controls on near-surface glacier cooling under warm atmospheric conditions","citation":{"mla":"Shaw, Thomas, et al. “Local Controls on Near-Surface Glacier Cooling under Warm Atmospheric Conditions.” <i>Journal of Geophysical Research: Atmospheres</i>, vol. 129, no. 2, e2023JD040214, Wiley, 2024, doi:<a href=\"https://doi.org/10.1029/2023JD040214\">10.1029/2023JD040214</a>.","ista":"Shaw T, Buri P, McCarthy M, Miles ES, Pellicciotti F. 2024. Local controls on near-surface glacier cooling under warm atmospheric conditions. Journal of Geophysical Research: Atmospheres. 129(2), e2023JD040214.","ieee":"T. Shaw, P. Buri, M. McCarthy, E. S. Miles, and F. Pellicciotti, “Local controls on near-surface glacier cooling under warm atmospheric conditions,” <i>Journal of Geophysical Research: Atmospheres</i>, vol. 129, no. 2. Wiley, 2024.","chicago":"Shaw, Thomas, Pascal Buri, Michael McCarthy, Evan S. Miles, and Francesca Pellicciotti. “Local Controls on Near-Surface Glacier Cooling under Warm Atmospheric Conditions.” <i>Journal of Geophysical Research: Atmospheres</i>. Wiley, 2024. <a href=\"https://doi.org/10.1029/2023JD040214\">https://doi.org/10.1029/2023JD040214</a>.","apa":"Shaw, T., Buri, P., McCarthy, M., Miles, E. S., &#38; Pellicciotti, F. (2024). Local controls on near-surface glacier cooling under warm atmospheric conditions. <i>Journal of Geophysical Research: Atmospheres</i>. Wiley. <a href=\"https://doi.org/10.1029/2023JD040214\">https://doi.org/10.1029/2023JD040214</a>","ama":"Shaw T, Buri P, McCarthy M, Miles ES, Pellicciotti F. Local controls on near-surface glacier cooling under warm atmospheric conditions. <i>Journal of Geophysical Research: Atmospheres</i>. 2024;129(2). doi:<a href=\"https://doi.org/10.1029/2023JD040214\">10.1029/2023JD040214</a>","short":"T. Shaw, P. Buri, M. McCarthy, E.S. Miles, F. Pellicciotti, Journal of Geophysical Research: Atmospheres 129 (2024)."},"ddc":["550"],"doi":"10.1029/2023JD040214","language":[{"iso":"eng"}],"acknowledgement":"This project has received funding from the European Union's Horizon 2020 research and innovation programme under the Marie Sklodowska-Curie grant agreement No. 101026058. The authors acknowledge the invaluable field assistance of Marta Corrà, Achille Jouberton, Marin Kneib, Stefan Fugger, Celine Ducret and Alexander Groos. The authors would also like to thank Luca Carturan for advice regarding AWS setup and maintenance and Simone Fatichi for provision and support in the use of the Tethys-Chloris model. Open access funding provided by ETH-Bereich Forschungsanstalten.","related_material":{"record":[{"id":"14919","relation":"research_data","status":"public"}]},"date_created":"2024-01-28T23:01:42Z","month":"01","status":"public","intvolume":"       129","quality_controlled":"1","department":[{"_id":"FrPe"}],"publication":"Journal of Geophysical Research: Atmospheres","publisher":"Wiley","year":"2024","has_accepted_license":"1","oa_version":"Published Version","article_type":"original","publication_identifier":{"issn":["2169-897X"],"eissn":["2169-8996"]},"user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","date_updated":"2024-02-06T08:44:02Z","scopus_import":"1","_id":"14885","date_published":"2024-01-28T00:00:00Z","abstract":[{"text":"The near-surface boundary layer can mediate the response of mountain glaciers to external climate, cooling the overlying air and promoting a density-driven glacier wind. The fundamental processes are conceptually well understood, though the magnitudes of cooling and presence of glacier winds are poorly quantified in space and time, increasing the forcing uncertainty for melt models. We utilize a new data set of on-glacier meteorological measurements on three neighboring glaciers in the Swiss Alps to explore their distinct response to regional climate under the extreme 2022 summer. We find that synoptic wind origins and local terrain modifications, not only glacier size, play an important role in the ability of a glacier to cool the near-surface air. Warm air intrusions from valley or synoptically-driven winds onto the glacier can occur between ∼19% and 64% of the time and contribute between 3% and 81% of the total sensible heat flux to the surface during warm afternoon hours, depending on the fetch of the glacier flowline and its susceptibility to boundary layer erosion. In the context of extreme summer warmth, indicative of future conditions, the boundary layer cooling (up to 6.5°C cooler than its surroundings) and resultant katabatic wind flow are highly heterogeneous between the study glaciers, highlighting the complex and likely non-linear response of glaciers to an uncertain future.","lang":"eng"}],"article_number":"e2023JD040214","file":[{"file_id":"14943","relation":"main_file","content_type":"application/pdf","success":1,"date_created":"2024-02-06T08:38:27Z","creator":"dernst","file_size":7481087,"file_name":"2024_JGRAtmospheres_Shaw.pdf","access_level":"open_access","date_updated":"2024-02-06T08:38:27Z","checksum":"cad5b93caadb40c14e5faedc34f7bba7"}],"issue":"2","article_processing_charge":"Yes (in subscription journal)","volume":129,"tmp":{"legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","image":"/images/cc_by.png","short":"CC BY (4.0)"},"file_date_updated":"2024-02-06T08:38:27Z","oa":1,"publication_status":"published"},{"publication_identifier":{"eissn":["2169-8996"],"issn":["2169-897X"]},"date_updated":"2023-02-28T13:31:08Z","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","scopus_import":"1","year":"2021","oa_version":"Published Version","article_type":"original","volume":126,"main_file_link":[{"open_access":"1","url":"https://doi.org/10.1029/2021JD034911"}],"oa":1,"publication_status":"published","date_published":"2021-12-16T00:00:00Z","_id":"12583","abstract":[{"text":"Peruvian glaciers are important contributors to dry season runoff for agriculture and hydropower, but they are at risk of disappearing due to climate change. We applied a physically based, energy balance melt model at five on-glacier sites within the Peruvian Cordilleras Blanca and Vilcanota. Net shortwave radiation dominates the energy balance, and despite this flux being higher in the dry season, melt rates are lower due to losses from net longwave radiation and the latent heat flux. The sensible heat flux is a relatively small contributor to melt energy. At three of the sites the wet season snowpack was discontinuous, forming and melting within a daily to weekly timescale, and resulting in highly variable melt rates closely related to precipitation dynamics. Cold air temperatures due to a strong La Niña year at Shallap Glacier (Cordillera Blanca) resulted in a continuous wet season snowpack, significantly reducing wet season ablation. Sublimation was most important at the highest site in the accumulation zone of the Quelccaya Ice Cap (Cordillera Vilcanota), accounting for 81% of ablation, compared to 2%–4% for the other sites. Air temperature and precipitation inputs were perturbed to investigate the climate sensitivity of the five glaciers. At the lower sites warmer air temperatures resulted in a switch from snowfall to rain, so that ablation was increased via the decrease in albedo and increase in net shortwave radiation. At the top of Quelccaya Ice Cap warming caused melting to replace sublimation so that ablation increased nonlinearly with air temperature.","lang":"eng"}],"article_number":"e2021JD034911","issue":"23","article_processing_charge":"No","doi":"10.1029/2021jd034911","language":[{"iso":"eng"}],"keyword":["Space and Planetary Science","Earth and Planetary Sciences (miscellaneous)","Atmospheric Science","Geophysics"],"type":"journal_article","author":[{"full_name":"Fyffe, Catriona L.","first_name":"Catriona L.","last_name":"Fyffe"},{"first_name":"Emily","full_name":"Potter, Emily","last_name":"Potter"},{"last_name":"Fugger","first_name":"Stefan","full_name":"Fugger, Stefan"},{"full_name":"Orr, Andrew","first_name":"Andrew","last_name":"Orr"},{"last_name":"Fatichi","full_name":"Fatichi, Simone","first_name":"Simone"},{"full_name":"Loarte, Edwin","first_name":"Edwin","last_name":"Loarte"},{"last_name":"Medina","full_name":"Medina, Katy","first_name":"Katy"},{"last_name":"Hellström","full_name":"Hellström, Robert Å.","first_name":"Robert Å."},{"last_name":"Bernat","first_name":"Maud","full_name":"Bernat, Maud"},{"last_name":"Aubry‐Wake","first_name":"Caroline","full_name":"Aubry‐Wake, Caroline"},{"first_name":"Wolfgang","full_name":"Gurgiser, Wolfgang","last_name":"Gurgiser"},{"full_name":"Perry, L. Baker","first_name":"L. Baker","last_name":"Perry"},{"first_name":"Wilson","full_name":"Suarez, Wilson","last_name":"Suarez"},{"last_name":"Quincey","full_name":"Quincey, Duncan J.","first_name":"Duncan J."},{"last_name":"Pellicciotti","first_name":"Francesca","full_name":"Pellicciotti, Francesca","id":"b28f055a-81ea-11ed-b70c-a9fe7f7b0e70"}],"day":"16","title":"The energy and mass balance of Peruvian Glaciers","citation":{"chicago":"Fyffe, Catriona L., Emily Potter, Stefan Fugger, Andrew Orr, Simone Fatichi, Edwin Loarte, Katy Medina, et al. “The Energy and Mass Balance of Peruvian Glaciers.” <i>Journal of Geophysical Research: Atmospheres</i>. American Geophysical Union, 2021. <a href=\"https://doi.org/10.1029/2021jd034911\">https://doi.org/10.1029/2021jd034911</a>.","ieee":"C. L. Fyffe <i>et al.</i>, “The energy and mass balance of Peruvian Glaciers,” <i>Journal of Geophysical Research: Atmospheres</i>, vol. 126, no. 23. American Geophysical Union, 2021.","ista":"Fyffe CL, Potter E, Fugger S, Orr A, Fatichi S, Loarte E, Medina K, Hellström RÅ, Bernat M, Aubry‐Wake C, Gurgiser W, Perry LB, Suarez W, Quincey DJ, Pellicciotti F. 2021. The energy and mass balance of Peruvian Glaciers. Journal of Geophysical Research: Atmospheres. 126(23), e2021JD034911.","mla":"Fyffe, Catriona L., et al. “The Energy and Mass Balance of Peruvian Glaciers.” <i>Journal of Geophysical Research: Atmospheres</i>, vol. 126, no. 23, e2021JD034911, American Geophysical Union, 2021, doi:<a href=\"https://doi.org/10.1029/2021jd034911\">10.1029/2021jd034911</a>.","short":"C.L. Fyffe, E. Potter, S. Fugger, A. Orr, S. Fatichi, E. Loarte, K. Medina, R.Å. Hellström, M. Bernat, C. Aubry‐Wake, W. Gurgiser, L.B. Perry, W. Suarez, D.J. Quincey, F. Pellicciotti, Journal of Geophysical Research: Atmospheres 126 (2021).","ama":"Fyffe CL, Potter E, Fugger S, et al. The energy and mass balance of Peruvian Glaciers. <i>Journal of Geophysical Research: Atmospheres</i>. 2021;126(23). doi:<a href=\"https://doi.org/10.1029/2021jd034911\">10.1029/2021jd034911</a>","apa":"Fyffe, C. L., Potter, E., Fugger, S., Orr, A., Fatichi, S., Loarte, E., … Pellicciotti, F. (2021). The energy and mass balance of Peruvian Glaciers. <i>Journal of Geophysical Research: Atmospheres</i>. American Geophysical Union. <a href=\"https://doi.org/10.1029/2021jd034911\">https://doi.org/10.1029/2021jd034911</a>"},"intvolume":"       126","status":"public","quality_controlled":"1","publication":"Journal of Geophysical Research: Atmospheres","publisher":"American Geophysical Union","date_created":"2023-02-20T08:10:43Z","extern":"1","month":"12"},{"page":"3100-3119","date_created":"2021-02-15T14:21:16Z","extern":"1","month":"03","publisher":"American Geophysical Union","intvolume":"       121","status":"public","quality_controlled":"1","publication":"Journal of Geophysical Research: Atmospheres","title":"Scaling of precipitation extremes with temperature in the French Mediterranean region: What explains the hook shape?","citation":{"chicago":"Drobinski, P., B. Alonzo, S. Bastin, N. Da Silva, and Caroline J Muller. “Scaling of Precipitation Extremes with Temperature in the French Mediterranean Region: What Explains the Hook Shape?” <i>Journal of Geophysical Research: Atmospheres</i>. American Geophysical Union, 2016. <a href=\"https://doi.org/10.1002/2015jd023497\">https://doi.org/10.1002/2015jd023497</a>.","ieee":"P. Drobinski, B. Alonzo, S. Bastin, N. D. Silva, and C. J. Muller, “Scaling of precipitation extremes with temperature in the French Mediterranean region: What explains the hook shape?,” <i>Journal of Geophysical Research: Atmospheres</i>, vol. 121, no. 7. American Geophysical Union, pp. 3100–3119, 2016.","ista":"Drobinski P, Alonzo B, Bastin S, Silva ND, Muller CJ. 2016. Scaling of precipitation extremes with temperature in the French Mediterranean region: What explains the hook shape? Journal of Geophysical Research: Atmospheres. 121(7), 3100–3119.","mla":"Drobinski, P., et al. “Scaling of Precipitation Extremes with Temperature in the French Mediterranean Region: What Explains the Hook Shape?” <i>Journal of Geophysical Research: Atmospheres</i>, vol. 121, no. 7, American Geophysical Union, 2016, pp. 3100–19, doi:<a href=\"https://doi.org/10.1002/2015jd023497\">10.1002/2015jd023497</a>.","short":"P. Drobinski, B. Alonzo, S. Bastin, N.D. Silva, C.J. Muller, Journal of Geophysical Research: Atmospheres 121 (2016) 3100–3119.","ama":"Drobinski P, Alonzo B, Bastin S, Silva ND, Muller CJ. Scaling of precipitation extremes with temperature in the French Mediterranean region: What explains the hook shape? <i>Journal of Geophysical Research: Atmospheres</i>. 2016;121(7):3100-3119. doi:<a href=\"https://doi.org/10.1002/2015jd023497\">10.1002/2015jd023497</a>","apa":"Drobinski, P., Alonzo, B., Bastin, S., Silva, N. D., &#38; Muller, C. J. (2016). Scaling of precipitation extremes with temperature in the French Mediterranean region: What explains the hook shape? <i>Journal of Geophysical Research: Atmospheres</i>. American Geophysical Union. <a href=\"https://doi.org/10.1002/2015jd023497\">https://doi.org/10.1002/2015jd023497</a>"},"author":[{"first_name":"P.","full_name":"Drobinski, P.","last_name":"Drobinski"},{"last_name":"Alonzo","full_name":"Alonzo, B.","first_name":"B."},{"last_name":"Bastin","first_name":"S.","full_name":"Bastin, S."},{"last_name":"Silva","full_name":"Silva, N. Da","first_name":"N. Da"},{"orcid":"0000-0001-5836-5350","id":"f978ccb0-3f7f-11eb-b193-b0e2bd13182b","full_name":"Muller, Caroline J","first_name":"Caroline J","last_name":"Muller"}],"type":"journal_article","day":"16","doi":"10.1002/2015jd023497","language":[{"iso":"eng"}],"issue":"7","article_processing_charge":"No","_id":"9140","abstract":[{"lang":"eng","text":"Expected changes to future extreme precipitation remain a key uncertainty associated with anthropogenic climate change. Extreme precipitation has been proposed to scale with the precipitable water content in the atmosphere. Assuming constant relative humidity, this implies an increase of precipitation extremes at a rate of about 7% °C−1 globally as indicated by the Clausius‐Clapeyron relationship. Increases faster and slower than Clausius‐Clapeyron have also been reported. In this work, we examine the scaling between precipitation extremes and temperature in the present climate using simulations and measurements from surface weather stations collected in the frame of the HyMeX and MED‐CORDEX programs in Southern France. Of particular interest are departures from the Clausius‐Clapeyron thermodynamic expectation, their spatial and temporal distribution, and their origin. Looking at the scaling of precipitation extreme with temperature, two regimes emerge which form a hook shape: one at low temperatures (cooler than around 15°C) with rates of increase close to the Clausius‐Clapeyron rate and one at high temperatures (warmer than about 15°C) with sub‐Clausius‐Clapeyron rates and most often negative rates. On average, the region of focus does not seem to exhibit super Clausius‐Clapeyron behavior except at some stations, in contrast to earlier studies. Many factors can contribute to departure from Clausius‐Clapeyron scaling: time and spatial averaging, choice of scaling temperature (surface versus condensation level), and precipitation efficiency and vertical velocity in updrafts that are not necessarily constant with temperature. But most importantly, the dynamical contribution of orography to precipitation in the fall over this area during the so‐called “Cevenoles” events, explains the hook shape of the scaling of precipitation extremes."}],"date_published":"2016-03-16T00:00:00Z","oa":1,"main_file_link":[{"url":"https://doi.org/10.1002/2015JD023497","open_access":"1"}],"publication_status":"published","volume":121,"year":"2016","oa_version":"Published Version","article_type":"original","publication_identifier":{"issn":["2169-897X","2169-8996"]},"date_updated":"2022-01-24T13:41:02Z","user_id":"8b945eb4-e2f2-11eb-945a-df72226e66a9"},{"keyword":["Space and Planetary Science","Earth and Planetary Sciences (miscellaneous)","Atmospheric Science","Geophysics"],"language":[{"iso":"eng"}],"doi":"10.1002/2015jd023137","day":"18","author":[{"last_name":"Ayala","first_name":"A.","full_name":"Ayala, A."},{"id":"b28f055a-81ea-11ed-b70c-a9fe7f7b0e70","last_name":"Pellicciotti","full_name":"Pellicciotti, Francesca","first_name":"Francesca"},{"first_name":"J. M.","full_name":"Shea, J. M.","last_name":"Shea"}],"type":"journal_article","citation":{"ama":"Ayala A, Pellicciotti F, Shea JM. Modeling 2 m air temperatures over mountain glaciers: Exploring the influence of katabatic cooling and external warming. <i>Journal of Geophysical Research: Atmospheres</i>. 2015;120(8):3139-3157. doi:<a href=\"https://doi.org/10.1002/2015jd023137\">10.1002/2015jd023137</a>","apa":"Ayala, A., Pellicciotti, F., &#38; Shea, J. M. (2015). Modeling 2 m air temperatures over mountain glaciers: Exploring the influence of katabatic cooling and external warming. <i>Journal of Geophysical Research: Atmospheres</i>. American Geophysical Union. <a href=\"https://doi.org/10.1002/2015jd023137\">https://doi.org/10.1002/2015jd023137</a>","short":"A. Ayala, F. Pellicciotti, J.M. Shea, Journal of Geophysical Research: Atmospheres 120 (2015) 3139–3157.","mla":"Ayala, A., et al. “Modeling 2 m Air Temperatures over Mountain Glaciers: Exploring the Influence of Katabatic Cooling and External Warming.” <i>Journal of Geophysical Research: Atmospheres</i>, vol. 120, no. 8, American Geophysical Union, 2015, pp. 3139–57, doi:<a href=\"https://doi.org/10.1002/2015jd023137\">10.1002/2015jd023137</a>.","chicago":"Ayala, A., Francesca Pellicciotti, and J. M. Shea. “Modeling 2 m Air Temperatures over Mountain Glaciers: Exploring the Influence of Katabatic Cooling and External Warming.” <i>Journal of Geophysical Research: Atmospheres</i>. American Geophysical Union, 2015. <a href=\"https://doi.org/10.1002/2015jd023137\">https://doi.org/10.1002/2015jd023137</a>.","ieee":"A. Ayala, F. Pellicciotti, and J. M. Shea, “Modeling 2 m air temperatures over mountain glaciers: Exploring the influence of katabatic cooling and external warming,” <i>Journal of Geophysical Research: Atmospheres</i>, vol. 120, no. 8. American Geophysical Union, pp. 3139–3157, 2015.","ista":"Ayala A, Pellicciotti F, Shea JM. 2015. Modeling 2 m air temperatures over mountain glaciers: Exploring the influence of katabatic cooling and external warming. Journal of Geophysical Research: Atmospheres. 120(8), 3139–3157."},"title":"Modeling 2 m air temperatures over mountain glaciers: Exploring the influence of katabatic cooling and external warming","publication":"Journal of Geophysical Research: Atmospheres","quality_controlled":"1","status":"public","intvolume":"       120","publisher":"American Geophysical Union","month":"04","extern":"1","date_created":"2023-02-20T08:16:28Z","page":"3139-3157","scopus_import":"1","date_updated":"2023-02-24T09:16:26Z","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","publication_identifier":{"issn":["2169-897X"],"eissn":["2169-8996"]},"article_type":"original","oa_version":"Published Version","year":"2015","volume":120,"publication_status":"published","date_published":"2015-04-18T00:00:00Z","_id":"12631","abstract":[{"text":"Air temperature is one of the most relevant input variables for snow and ice melt calculations. However, local meteorological conditions, complex topography, and logistical concerns in glacierized regions make the measuring and modeling of air temperature a difficult task. In this study, we investigate the spatial distribution of 2 m air temperature over mountain glaciers and propose a modification to an existing model to improve its representation. Spatially distributed meteorological data from Haut Glacier d'Arolla (Switzerland), Place (Canada), and Juncal Norte (Chile) Glaciers are used to examine approximate flow line temperatures during their respective ablation seasons. During warm conditions (off-glacier temperatures well above 0°C), observed air temperatures in the upper reaches of Place Glacier and Haut Glacier d'Arolla decrease down glacier along the approximate flow line. At Juncal Norte and Haut Glacier d'Arolla, an increase in air temperature is observed over the glacier tongue. While the temperature behavior over the upper part can be explained by the cooling effect of the glacier surface, the temperature increase over the glacier tongue may be caused by several processes induced by the surrounding warm atmosphere. In order to capture the latter effect, we add an additional term to the Greuell and Böhm (GB) thermodynamic glacier wind model. For high off-glacier temperatures, the modified GB model reduces root-mean-square error up to 32% and provides a new approach for distributing air temperature over mountain glaciers as a function of off-glacier temperatures and approximate glacier flow lines.","lang":"eng"}],"article_processing_charge":"No","issue":"8"},{"extern":"1","month":"04","date_created":"2023-02-20T08:17:34Z","page":"3066-3084","quality_controlled":"1","publication":"Journal of Geophysical Research: Atmospheres","intvolume":"       118","status":"public","publisher":"American Geophysical Union","day":"27","type":"journal_article","author":[{"full_name":"Juszak, I.","first_name":"I.","last_name":"Juszak"},{"last_name":"Pellicciotti","first_name":"Francesca","full_name":"Pellicciotti, Francesca","id":"b28f055a-81ea-11ed-b70c-a9fe7f7b0e70"}],"citation":{"short":"I. Juszak, F. Pellicciotti, Journal of Geophysical Research: Atmospheres 118 (2013) 3066–3084.","ama":"Juszak I, Pellicciotti F. A comparison of parameterizations of incoming longwave radiation over melting glaciers: Model robustness and seasonal variability. <i>Journal of Geophysical Research: Atmospheres</i>. 2013;118(8):3066-3084. doi:<a href=\"https://doi.org/10.1002/jgrd.50277\">10.1002/jgrd.50277</a>","apa":"Juszak, I., &#38; Pellicciotti, F. (2013). A comparison of parameterizations of incoming longwave radiation over melting glaciers: Model robustness and seasonal variability. <i>Journal of Geophysical Research: Atmospheres</i>. American Geophysical Union. <a href=\"https://doi.org/10.1002/jgrd.50277\">https://doi.org/10.1002/jgrd.50277</a>","chicago":"Juszak, I., and Francesca Pellicciotti. “A Comparison of Parameterizations of Incoming Longwave Radiation over Melting Glaciers: Model Robustness and Seasonal Variability.” <i>Journal of Geophysical Research: Atmospheres</i>. American Geophysical Union, 2013. <a href=\"https://doi.org/10.1002/jgrd.50277\">https://doi.org/10.1002/jgrd.50277</a>.","ista":"Juszak I, Pellicciotti F. 2013. A comparison of parameterizations of incoming longwave radiation over melting glaciers: Model robustness and seasonal variability. Journal of Geophysical Research: Atmospheres. 118(8), 3066–3084.","ieee":"I. Juszak and F. Pellicciotti, “A comparison of parameterizations of incoming longwave radiation over melting glaciers: Model robustness and seasonal variability,” <i>Journal of Geophysical Research: Atmospheres</i>, vol. 118, no. 8. American Geophysical Union, pp. 3066–3084, 2013.","mla":"Juszak, I., and Francesca Pellicciotti. “A Comparison of Parameterizations of Incoming Longwave Radiation over Melting Glaciers: Model Robustness and Seasonal Variability.” <i>Journal of Geophysical Research: Atmospheres</i>, vol. 118, no. 8, American Geophysical Union, 2013, pp. 3066–84, doi:<a href=\"https://doi.org/10.1002/jgrd.50277\">10.1002/jgrd.50277</a>."},"title":"A comparison of parameterizations of incoming longwave radiation over melting glaciers: Model robustness and seasonal variability","language":[{"iso":"eng"}],"keyword":["Space and Planetary Science","Earth and Planetary Sciences (miscellaneous)","Atmospheric Science","Geophysics"],"doi":"10.1002/jgrd.50277","_id":"12643","date_published":"2013-04-27T00:00:00Z","abstract":[{"lang":"eng","text":"Parameterizations of incoming longwave radiation are increasingly receiving attention for both low and high elevation glacierized sites. In this paper, we test 13 clear-sky parameterizations combined with seven cloud corrections for all-sky atmospheric emissivity at one location on Haut Glacier d'Arolla. We also analyze the four seasons separately and conduct a cross-validation to test the parameters’ robustness. The best parameterization is the one by Dilley and O'Brien, B for clear-sky conditions combined with Unsworth and Monteith cloud correction. This model is also the most robust when tested in cross-validation. When validated at different sites in the southern Alps of Switzerland and north-western Italian Alps, all parameterizations show a substantial decrease in performance, except for one site, thus suggesting that it is important to recalibrate parameterizations of incoming longwave radiation for different locations. We argue that this is due to differences in the structure of the atmosphere at the sites. We also quantify the effect that the incoming longwave radiation parameterizations have on energy-balance melt modeling, and show that recalibration of model parameters is needed. Using parameters from other sites leads to a significant underestimation of melt and to an error that is larger than that associated with using different parameterizations. Once recalibrated, however, the parameters of most models seem to be stable over seasons and years at the location on Haut Glacier d'Arolla."}],"issue":"8","article_processing_charge":"No","volume":118,"publication_status":"published","main_file_link":[{"open_access":"1","url":"https://doi.org/10.1002/jgrd.50277"}],"oa":1,"article_type":"original","oa_version":"Published Version","year":"2013","date_updated":"2023-02-21T10:10:46Z","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","scopus_import":"1","publication_identifier":{"issn":["2169-897X"]}}]