Articles | Volume 17, issue 6
https://doi.org/10.5194/amt-17-1617-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/amt-17-1617-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
19 Mar 2024
Research article |
| 19 Mar 2024
| 19 Mar 2024
Verification of parameterizations for clear sky downwelling longwave irradiance in the Arctic
Giandomenico Pace
CORRESPONDING AUTHOR
Laboratory for Observations and Measurements for Environment and Climate, ENEA, 00123 Rome, Italy
Alcide di Sarra
Laboratory for Observations and Measurements for Environment and Climate, ENEA, 00044 Frascati, Italy
Filippo Cali Quaglia
Istituto Nazionale di Geofisica e Vulcanologia, 00143 Rome, Italy
Department of Environmental Sciences, Informatics and Statistics, Ca' Foscari University of Venice, 30172 Mestre, Italy
Virginia Ciardini
Laboratory for Observations and Measurements for Environment and Climate, ENEA, 00123 Rome, Italy
Tatiana Di Iorio
Laboratory for Observations and Measurements for Environment and Climate, ENEA, 00123 Rome, Italy
Antonio Iaccarino
Laboratory for Observations and Measurements for Environment and Climate, ENEA, 00123 Rome, Italy
Daniela Meloni
Laboratory for Observations and Measurements for Environment and Climate, ENEA, 00123 Rome, Italy
Giovanni Muscari
Istituto Nazionale di Geofisica e Vulcanologia, 00143 Rome, Italy
Claudio Scarchilli
Laboratory for Observations and Measurements for Environment and Climate, ENEA, 00123 Rome, Italy
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Cited articles
Andreas, E. L. and Ackley, S. F.: On the difference in ablation seasons of Arctic and Antarctic sea ice, J. Atmos. Sci., 39, 440–447, https://doi.org/10.1175/1520-0469(1982)039<0440:OTDIAS>2.0.CO;2, 1982.
Ångström, A.: A study of the radiation of the atmosphere, Smithsonian Misc. Collect., 65, 1–159, 1918.
Becagli, S., Lazzara, L., Marchese, C., Dayan, U., Ascanius, S. E., Cacciani, M., Di Biagio, C., Di Iorio, T., di Sarra, A., Eriksen, P., Fani, F., Frosini, D., Meloni, D., Muscari, G., Pace, G., Severi, M., Traversi, R., and Udisti, R.: Relationships linking primary production, sea ice melting, and biogenic aerosol in the Arctic, Atmos. Environ., 136, 1–15, https://doi.org/10.1016/j.atmosenv.2016.04.002, 2016.
Becagli, S., Amore, A., Caiazzo, L., Di Iorio, T., di Sarra, A., Lazzara, L., Marchese, C., Meloni, D., Mori, G., Muscari, G., Nuccio, C., Pace, G., Severi, M., and Traversi, R.: Biogenic aerosol in the Arctic from 8 years of MSA data from Ny Ålesund (Svalbard Islands) and Thule (Greenland), Atmosphere, 10, 349, https://doi.org/10.3390/atmos10070349, 2019.
Becagli, S., Caiazzo, L., Di Iorio, T., di Sarra, A., Meloni, D., Muscari, G., Pace, G., Severi, M., and Traversi, R.: New insights on metals in the Arctic aerosol in a climate changing world, Sci. Total Environ., 741, 140511, https://doi.org/10.1016/j.scitotenv.2020.140511, 2020.
Berk, A., Anderson, G. P., Acharya, P. K., Bernstein, L. S.,Muratov, L., Lee, J., Fox, M., Adler-Golden, S. M., Chetwynd, J. H., Hoke, M. L., Lockwood, R. B., Gardner, J. A., Cooley, T. W., Borel, C. C., Lewis, P. E., and Shettle, E. P.: MODTRAN5: 2006 Update, Proc. SPIE, 6233, Algorithms and Technologies for Multispectral, Hyperspectral, and Ultraspectral Imagery XII, 62331F (8 May 2006), https://doi.org/10.1117/12.665077, 2006.
Bintanja, R. and Krikken, F.: Magnitude and pattern of Arctic warming governed by the seasonality of radiative forcing, Sci. Rep., 6, 38287, https://doi.org/10.1038/srep38287, 2016.
Brunt, D.: Notes on radiation in the atmosphere, I, Q. J. Roy. Meteor. Soc., 58, 389–420, https://doi.org/10.1002/qj.49705824704, 1932.
Brutsaert, W.: On a derivable formula for long-wave radiation from clear skies, Water Resour. Res., 11, 742–744, https://doi.org/10.1029/WR011i005p00742, 1975.
Calì Quaglia, F., Meloni, D., Muscari, G., Di Iorio, T., Ciardini, V., Pace, G., Becagli, S., Di Bernardino, A., Cacciani, M., Hannigan, J. W., Ortega, I., and di Sarra, A. G.: On the radiative impact of biomass-burning aerosols in the Arctic: the August 2017 case study, Remote Sens., 14, 313, https://doi.org/10.3390/rs14020313, 2022.
Cox, C. J., Walden, V. P., and Rowe, P. M.: A comparison of the atmospheric conditions at Eureka, Canada, and Barrow, Alaska (2006–2008), J. Geophys. Res., 117, D12204, https://doi.org/10.1029/2011JD017164, 2012.
Curry, J. A., Rossow, W. B., Randall, D., and Schramm, J. L.: Overview of Arctic cloud and radiation characteristics, J. Climate, 9, 1731–1764, https://doi.org/10.1175/1520-0442(1996)009<1731:OOACAR>2.0.CO;2, 1996.
Deacon, E. L.: The derivation of Swinbank's long-wave radiation formula, Q. J. Roy. Meteor. Soc., 96, 313–319, https://doi.org/10.1002/qj.49709640814, 1970.
Di Biagio, C., Muscari, G., di Sarra, A., de Zafra, R. L., Eriksen, P., Fiocco, R. L., Fiorucci, I., and Fuà, D.: Evolution of temperature, O3, CO, and N2O profiles during the exceptional 2009 Arctic major stratospheric warming as observed by lidar and mm-wave spectroscopy at Thule (76.5° N, 68.8° W), Greenland, J. Geophys. Res., 115, D24315, https://doi.org/10.1029/2010JD014070, 2010.
Di Biagio, C., di Sarra, A., Eriksen, P., Ascanius, S.E., Muscari, G., and Holben, B.: Effect of surface albedo, water vapour, and atmospheric aerosols on the cloud-free shortwave radiative budget in the Arctic, Clim. Dynam., 39, 953–969, https://doi.org/10.1007/s00382-011-1280-1, 2012.
Di Biagio, C., Pelon, J., Blanchard, Y., Loyer, L., Hudson, S. R., Walden, V. P., Raut, J.-C., Kato, S., Mariage, V., and Granskog, M. A.: Toward a better surface radiation budget analysis over sea ice in the high Arctic Ocean: a comparative study between satellite, reanalysis, and local-scale observations, J. Geophys. Res.-Atmos., 126, e2020JD032555, https://doi.org/10.1029/2020JD032555, 2021.
Dilley, A. C. and O'Brien, D. M.: Estimating downward clear sky longwave irradiance at the surface from screen temperature and precipitable water, Q. J. Roy. Meteor. Soc., 124, 1391–1401, https://doi.org/10.1002/qj.49712454903, 1998.
di Sarra, A., Cacciani, M., Fiocco, G., Fuà, D., and Jørgensen, T.S.: Lidar observations of polar stratospheric clouds over northern Greenland in the period 1990–1997, J. Geophys. Res., 107, 4152, https://doi.org/10.1029/2001JD001074, 2002.
Dupont, J.-C., Haeffelin, M., and Long, C. N.: Evaluation of cloudless-sky periods detected by shortwave and longwave algorithms using lidar measurements, Geophys. Res. Lett., 35, L10815, https://doi.org/10.1029/2008GL033658, 2008.
Dürr, B. and Philipona, R.: Automatic cloud amount detection by surface longwave downward radiation measurements, J. Geophys. Res., 109, D05201, https://doi.org/10.1029/2003JD004182, 2004.
Flerchinger, G. N., Xaio, W., Marks, D., Sauer, T. J., and Yu, Q.: Comparison of algorithms for incoming atmospheric long-wave radiation, Water Resour. Res., 45, W03423, https://doi.org/10.1029/2008WR007394, 2009.
Formetta, G., Bancheri, M., David, O., and Rigon, R.: Performance of site-specific parameterizations of longwave radiation, Hydrol. Earth Syst. Sci., 20, 4641–4654, https://doi.org/10.5194/hess-20-4641-2016, 2016.
Gupta, H. V., Kling, H., Yilmaz, K. K., and Martinez, G. F.: Decomposition of the mean squared error and NSE performance criteria: Implications for improving hydrological modelling, J. Hydrol., 377, 80–91, https://doi.org/10.1016/j.jhydrol.2009.08.003, 2009.
Gupta, S. K.: A parameterization for longwave surface radiation from Sun-synchronous satellite data, J. Climate, 2, 305–320, https://doi.org/10.1175/1520-0442(1989)002<0305:APFLSR>2.0.CO;2, 1989.
Hanesiak, J. M., Barber, D. G., Papakyriakou, T. N., and Minnett, P. J.: Parametrization schemes of incident radiation in the North Water polynya, Atmos.-Ocean, 39, 223–238, https://doi.org/10.1080/07055900.2001.9649678, 2001.
Idso, S. B.: A set of equations for full spectrum and 8- to 14-µm and 10.5- to 12.5-µm thermal radiation from cloudless skies, Water Resour. Res. 17, 295–304, https://doi.org/10.1029/WR017i002p00295, 1981.
Idso, S. B. and Jackson, R. D.: Thermal radiation from the atmosphere, J. Geophys. Res., 74, 5397–5403, https://doi.org/10.1029/JC074i023p05397, 1969.
Jin, X., Barber, D., and Papakyriakou T.: A new clear-sky downward longwave radiative flux parameterization for Arctic areas based on rawinsonde data, J. Geophys. Res., 111, D24104, https://doi.org/10.1029/2005JD007039, 2006.
Kassianov, E., Long, C. N., and Ovtchinnikov, M.: Cloud sky cover versus cloud fraction: Whole-sky simulations and observations, J. Appl. Meteorol., 44, 86–98, https://doi.org/10.1175/JAM-2184.1, 2005.
Kay, J. E. and L'Ecuyer, T.: Observational constraints on Arctic Ocean clouds and radiative fluxes during the early 21st century, J. Geophys. Res.-Atmos., 118, 7219–7236, https://doi.org/10.1002/jgrd.50489, 2013.
Key, J. R., Silcox, R. A., and Stone, R. S.: Evaluation of surface radiative flux parameterizations for use in sea ice models, J. Geophys. Res., 101, 3839–3849, https://doi.org/10.1029/95JC03600, 1996.
König-Langlo, G. and Augstein, E.: Parameterization of the downward longwave radiation at the Earth's surface in polar regions, Meteorol. Z., 3, 343–347, https://doi.org/10.1127/metz/3/1994/343, 1994.
Konzelmann, T., van de Wal, R. S. W., Greuell, W., Bintanja, R., Henneken, E. A. C., and Abe-Ouchi, A.: Parameterization of global and longwave incoming radiation for the Greenland Ice Sheet, Global Planet. Change, 9, 143–164, https://doi.org/10.1016/0921-8181(94)90013-2, 1994.
Long, C. N. and Turner, D. D.: A method for continuous estimation of clear-sky downwelling longwave radiative flux developed using ARM surface measurements, J. Geophys. Res., 113, D18206, https://doi.org/10.1029/2008JD009936, 2008.
Marshunova, M. S.: Principal characteristics of the radiation balance of the underlying surface, in Soviet Data on the Arctic Heat Budget and Its Climate Influence, Rep. R. M. 5003-PR, edited by: Fletcher, J. O., Keller, B., and Olenicoff, S. M., Rand Corp., Santa Monica, Calif., 1966.
Maykut, G. A. and Church, P. E.: Radiation climate of Barrow Alaska, 1962–66, J. Appl. Meteorol., 12, 620–638, https://doi.org/10.1175/1520-0450(1973)012<0620:RCOBA>2.0.CO;2, 1973.
Meloni, D., Di Biagio, C., di Sarra, A., Monteleone, F., Pace, G., and Sferlazzo, D. M.: Accounting for the solar radiation influence on downward longwave irradiance measurements by pyrgeometers, J. Atmos. Ocean. Tech., 29, 1629–1643, https://doi.org/10.1175/JTECH-D-11-00216.1, 2012.
Meloni, D., Di Sarra, A., Di Iorio, T., Pace, G., Muscari, G., Iaccarino, A., and Calì Quaglia, F.: Downward Shortwave Irradiance at the Thule High Arctic Atmospheric Observatory (THAAO_DSI), Agenzia Nazionale per le nuove tecnologie, l'energia e lo sviluppo economico sostenibile (ENEA) [data set], https://doi.org/10.13127/THAAO/DLI, 2022.
Meloni, D., Calì Quaglia, F., Ciardini, V., Di Bernardino, A., Di Iorio, T., Iaccarino, A., Muscari, G., Pace, G., Scarchilli, C., and di Sarra, A.: Shortwave and longwave components of the surface radiation budget measured at the Thule High Arctic Atmospheric Observatory, Northern Greenland, Earth Syst. Sci. Data, 16, 543–566, https://doi.org/10.5194/essd-16-543-2024, 2024.
Mevi, G., Muscari, G., Bertagnolio, P. P., Fiorucci, I., and Pace, G.: VESPA-22: a ground-based microwave spectrometer for long-term measurements of polar stratospheric water vapor, Atmos. Meas. Tech., 11, 1099–1117, https://doi.org/10.5194/amt-11-1099-2018, 2018.
Muscari, G., di Sarra, A. G., de Zafra, R. L., Lucci, F., Baordo, F., Angelini, F., and Fiocco, G.: Middle atmospheric O3, CO, N2O, HNO3, and temperature profiles during the warm Arctic winter 2001–2002, J. Geophys. Res., 112, D14304, https://doi.org/10.1029/2006JD007849, 2007.
Muscari, G., Di Biagio, C., di Sarra, A., Cacciani, M., Ascanius, S. E., Bertagnolio, P. P., Cesaroni, C., de Zafra, R. L., Eriksen, P., Fiocco, G., Fiorucci, I., and Fuà, D.: Observations of surface radiation and stratospheric processes at Thule Air Base, Greenland, during the IPY, Ann. Geophys., 57, SS0323, https://doi.org/10.4401/ag-6382, 2014.
Muscari, G., Di Sarra, A., Di Iorio, T., Pace, G., Meloni, D., Sensale, G., Calì Quaglia, F., and Iaccarino, A.: Meteorological data at the Thule High Arctic Atmospheric Observatory (THAAO_Met), Agenzia Nazionale per le nuove tecnologie, l'energia e lo sviluppo economico sostenibile (ENEA) [data set], https://doi.org/10.13127/THAAO/MET, 2018.
Niemelä, S., Räisänen, P., and Savijärvi, H.: Comparison of surface radiative flux parameterizations, part 1: Longwave radiation, Atmos. Res., 58, 1–18, https://doi.org/10.1016/S0169-8095(01)00084-9, 2001.
Ohmura, A.: Climate and energy balance of Arctic tundra, Züricher Geographische Schriften, 3, Zürich, 448 pp., 1981.
Ohmura, A.: Physical basis for the temperature-based melt-index method, J. Appl. Meteorol., 40, 753–761, https://doi.org/10.1175/1520-0450(2001)040<0753:PBFTTB>2.0.CO;2, 2001.
Pace, G., Di Iorio, T., di Sarra, A., Iaccarino, A., Meloni, D., Mevi, G., Muscari, G., and Cacciani, M.: Microwave measurements of temperature profiles, integrated water vapour, and liquid water path at Thule Air Base, Greenland, EGU General Assembly, Vienna, Austria, 23–28 April 2017, EGU2017-10226, 2017.
Pace, G., Muscari, G., di Sarra, A., Calì Quaglia, F., Meloni, D., Iaccarino, A., and Di Iorio, T.: Infrared Brightness Temperature at the Thule High Arctic Atmospheric Observatory (THAAO_IBT), Agenzia Nazionale per le nuove tecnologie, l'energia e lo sviluppo economico sostenibile (ENEA) [data set], https://doi.org/10.12910/DATASET2023-001, 2023a.
Pace, G., Muscari, G., di Sarra, A., Calì Quaglia, F., Meloni, D., Iaccarino, A., and Di Iorio, T.: Integrated Water Vapor measured by an HATPRO microwave radiometer at the Thule High Arctic Atmospheric Observatory (THAAO_IWV_HATPRO), Agenzia Nazionale per le nuove tecnologie, l'energia e lo sviluppo economico sostenibile (ENEA) [data set], https://doi.org/10.12910/DATASET2023-002, 2023b.
Prata, A. J.: A new long-wave formula for estimating downward clear-sky radiation at the surface, Q. J. Roy. Meteor. Soc., 122, 1127–1151, https://doi.org/10.1002/qj.49712253306, 1996.
Raddatz, R. L., Asplin, M. G., Papakyriakou, T., Candlish, L. M., Galley, R. J., Else, B., and Barber, D. G.: All-Sky downwelling longwave radiation and atmospheric-column water vapour and temperature over the western maritime Arctic, Atmos.-Ocean, 51, 145–152, https://doi.org/10.1080/07055900.2012.760441, 2013.
Rose, T., Crewell, S., Löhnert, U., and Simmer, C.: A network suitable microwave radiometer for operational monitoring of the cloudy atmosphere, Atmos. Res., 75, 183–200, https://doi.org/10.1016/j.atmosres.2004.12.005, 2005.
Satterlund, D. R.: An improved equation for estimating long-wave radiation from the atmosphere, Water Resour. Res., 15, 1649–1650, https://doi.org/10.1029/WR015i006p01649, 1979.
Shupe, M., Walden V. P., Eloranta, E., Uttal, T., Campbell, J. R., Starkweather, S. M., and Shiobara M.: Clouds at Arctic atmospheric observatories. Part I: Occurrence and macrophysical properties, J. Appl. Meteorol. Clim., 50, 626–644, https://doi.org/10.1175/2010JAMC2467.1, 2011.
Shupe, M. D. and Intrieri, J. M.: Cloud Radiative Forcing of the Arctic Surface: The Influence of Cloud Properties, Surface Albedo, and Solar Zenith Angle, J. Climate, 17, 616–628, https://doi.org/10.1175/1520-0442(2004)017<0616:CRFOTA>2.0.CO;2, 2004.
Staiger, H. and Matzarakis, A.: Evaluation of atmospheric thermal radiation algorithms for daylight hours, Theor. Appl. Climatol., 102, 227–241, https://doi.org/10.1007/s00704-010-0325-4, 2010.
Swinbank, W. C.: Long-wave radiation from clear skies, Q. J. Roy. Meteor. Soc., 89, 339–348, https://doi.org/10.1002/qj.49708938105, 1963.
Taylor, K. E.: Summarizing multiple aspects of model performance in a single diagram, J. Geophys. Res., 106, 7183–7192, https://doi.org/10.1029/2000JD900719, 2001.
Taylor, P. C., Boeke, R. C., Boisvert, L. N., Feldl, N., Henry, M., Huang, Y., Langen, P. L., Liu, W., Pithan, F., Sejas, S. A., and Tan, I.: Process Drivers, Inter-Model Spread, and the Path Forward: A Review of Amplified Arctic Warming, Front. Earth Sci., 9:758361, https://doi.org/10.3389/feart.2021.758361, 2022.
Wagner, W. and Pruß, A.: The IAPWS Formulation 1995 for the thermodynamic properties of ordinary water substance for general and scientific use, J. Phys. Chem. Ref. Data, 31, 387–535, https://doi.org/10.1063/1.1461829, 2002.
WMO: Guide to Instruments and Methods of Observation, Volume I – Measurement of Meteorological Variables, WMO-No. 8, ISBN 978-92-63-10008-5, 2021.
Yang, J., Hu, J., Chen, Q., and Quan, W.: Parameterization of downward long-wave radiation based on long-term baseline surface radiation measurements in China, Atmos. Chem. Phys., 23, 4419–4430, https://doi.org/10.5194/acp-23-4419-2023, 2023.
Zhang, T., Stamnes, K., and Bowling, S. A.: Impact of the atmospheric thickness on the atmospheric downwelling longwave radiation and snowmelt under clear-sky conditions in the Arctic and Subarctic, J. Climate, 14, 920–939, https://doi.org/10.1175/1520-0442(2001)014<0920:IOTATO>2.0.CO;2, 2001.
Short summary
This study investigates the performances of 17 formulas to determine the clear sky longwave downward irradiance in the Arctic environment. The formulas need to be tuned to the environmental conditions of the studied region and, to date, few of them have been developed and/or tested in the Arctic. The best formulas provide biases and root mean squared errors respectively smaller than 1 and 5 W m-2. We intend to use these results to estimate the longwave cloud radiative perturbation.
This study investigates the performances of 17 formulas to determine the clear sky longwave...
