Climate Dynamics

, Volume 37, Issue 7–8, pp 1643–1660

A transitioning Arctic surface energy budget: the impacts of solar zenith angle, surface albedo and cloud radiative forcing

  • Joseph Sedlar
  • Michael Tjernström
  • Thorsten Mauritsen
  • Matthew D. Shupe
  • Ian M. Brooks
  • P. Ola G. Persson
  • Cathryn E. Birch
  • Caroline Leck
  • Anders Sirevaag
  • Marcel Nicolaus
Article

Abstract

Snow surface and sea-ice energy budgets were measured near 87.5°N during the Arctic Summer Cloud Ocean Study (ASCOS), from August to early September 2008. Surface temperature indicated four distinct temperature regimes, characterized by varying cloud, thermodynamic and solar properties. An initial warm, melt-season regime was interrupted by a 3-day cold regime where temperatures dropped from near zero to −7°C. Subsequently mean energy budget residuals remained small and near zero for 1 week until once again temperatures dropped rapidly and the energy budget residuals became negative. Energy budget transitions were dominated by the net radiative fluxes, largely controlled by the cloudiness. Variable heat, moisture and cloud distributions were associated with changing air-masses. Surface cloud radiative forcing, the net radiative effect of clouds on the surface relative to clear skies, is estimated. Shortwave cloud forcing ranged between −50 W m−2 and zero and varied significantly with surface albedo, solar zenith angle and cloud liquid water. Longwave cloud forcing was larger and generally ranged between 65 and 85 W m−2, except when the cloud fraction was tenuous or contained little liquid water; thus the net effect of the clouds was to warm the surface. Both cold periods occurred under tenuous, or altogether absent, low-level clouds containing little liquid water, effectively reducing the cloud greenhouse effect. Freeze-up progression was enhanced by a combination of increasing solar zenith angles and surface albedo, while inhibited by a large, positive surface cloud forcing until a new air-mass with considerably less cloudiness advected over the experiment area.

Keywords

Arctic Sea ice Surface energy budget Cloud radiative forcing Shortwave radiation Longwave radiation 

References

  1. ACIA (2005) Arctic climate impact assesment: impacts of a warming Arctic. Cambridge University Press, CambridgeGoogle Scholar
  2. Andreas EL, Jordan RE, Makshtas AP (2005) Parameterizing turbulent exchange over sea ice: the ice station weddell results. Boundary Layer Meteorol 114:439–460CrossRefGoogle Scholar
  3. Belchansky GI, Douglas DC, Platonov NG (2004) Duration of the Arctic sea ice melt season: regional and interannual variability, 1979–2001. J Clim 17:67–80CrossRefGoogle Scholar
  4. Birch CE, Brooks IM, Tjernström M, Milton SF, Earnshaw P, Söderberg S, Persson POG (2009) The performance of a global and mesoscale model over the central Arctic Ocean during late summer. J Geophys Res 114:12104. doi:10.1029/2008JD010790 CrossRefGoogle Scholar
  5. Chen Y, Aires F, Francis JA, Miller JR (2006) Observed relationships between Arctic longwave cloud forcing and cloud parameters using a neural network. J Clim 19:4087–4104CrossRefGoogle Scholar
  6. Curry JA, Rossow WB, Randall D, Schramm JL (1996) Overview of Arctic cloud and radiation characteristics. J Clim 9:1731–1764CrossRefGoogle Scholar
  7. Fu Q, Liou KN (1992) The correlated k-distribution method for radiative transfer in nonhomogeneous atmospheres. J Atmos Sci 49:2139–2156CrossRefGoogle Scholar
  8. Garrett TJ, Radke LF, Hobbs PV (2002) Aerosol effects on cloud emissivity and surface longwave heating in the Arctic. J Atmos Sci 59:769–778CrossRefGoogle Scholar
  9. Graversen RG (2006) Do changes in the midlatitude circulation have any impact on the Arctic surface air temperature trend? J Clim 19:5422–5438CrossRefGoogle Scholar
  10. Graversen RG, Wang M (2009) Polar amplification in a coupled climate model with locked albedo. Clim Dyn 33:629–643CrossRefGoogle Scholar
  11. Graversen RG, Mauritsen T, Tjernström M, Källen E, Svensson G (2008) Vertical structure of recent Arctic warming. Nature 451:53–57CrossRefGoogle Scholar
  12. Intrieri JM, Fairall CW, Shupe MD, Persson POG, Andreas EL, Guest PS, Moritz RE (2002a) An annual cycle of Arctic surface cloud forcing at SHEBA. J Geophys Res 107:C10. doi:10.1029/2000JC000439 Google Scholar
  13. Intrieri JM, Shupe MD, Uttal T, McCarty BJ (2002b) An annual cycle of Arctic cloud characteristics observed by radar and lidar at SHEBA. J Geophys Res 107:C10. doi:10.1029/2000JC000423 Google Scholar
  14. IPCC (2007) Intergovernmental panel on climate change, fourth assessment report—the physical science basis. Cambridge University Press, CambridgeGoogle Scholar
  15. Kay J, L’Ecuyer ET, Gettelman A, Stephens G, O’Dell C (2008) The contribution of cloud and radiation anomalies to the 2007 Arctic sea ice extent minimum. Geophys Res Let 35:L08503. doi:10.1029/2008GL033451 CrossRefGoogle Scholar
  16. Kay JE, Gettelman A (2009) Cloud influence on and response to seasonal Arctic sea ice loss. J Geophys Res 114:D18204. doi:10.1029/2009JD011773 CrossRefGoogle Scholar
  17. Leck C, Bigg EK, Covert DS, Heintzenberg J, Maenhaut W, Nilsson ED, Wiedensohler A (1996) Overview of the atmospheric research program during the International Ocean Expedition of 1991 (IAOE-1991) and its scientific results. Tellus 48B:136–155Google Scholar
  18. Leck C, Nilsson ED, Bigg EK, Bcklin L (2001) The atmospheric program of the Arctic Ocean Expedition 1996 (AOE-1996) - an overview of scientific objectives, experimental approaches and instruments. J Geophys Res 106(D23):32051–32067CrossRefGoogle Scholar
  19. Leck C, Tjernström M, Matrai P, Swietlicki E, Bigg K (2004) Can marine micro-organisms influence melting of the Arctic pack ice? EOS 85:25–36CrossRefGoogle Scholar
  20. Lindsay RW, Zhang J (2005) The thinning of Arctic sea ice, 1988–2003: have we passed a tipping point? J Clim 18:4879–4894CrossRefGoogle Scholar
  21. Lindsay RW, Zhang J, Schweiger A, Steele M, Stern H (2009) AArctic sea ice retreat in 2007 follows thinning trend. J Clim 22:165–176CrossRefGoogle Scholar
  22. Liou KN (1992) Radiation and cloud processes in the atmosphere, Oxford monographs on geology and geophysics no. 20. Oxford University Press, Oxford, p. 487Google Scholar
  23. Liou KN, Fu Q, Ackerman TP (1988) A simple formulation of the delta-four-stream approximation for radiative transfer parameterizations. J Atmos Sci 45:1940–1947CrossRefGoogle Scholar
  24. Liu Y, Key JR, Wang X (2008) The influence of changes in cloud cover on recent surface temperature trends in the Arctic. J Clim 21:705–715CrossRefGoogle Scholar
  25. Markus T, Stroeve JC, Miller J (2009) Recent changes in Arctic sea ice melt onset, freezeup, and melt season length. J Geophys Res 114. doi:10.1029/2009JC005436
  26. McPhee MG (2008) Air–ice–ocean interaction: turbulent boundary layer exchange processes. Springer, BerlinGoogle Scholar
  27. Moran KP, Martnew BE, Post MJ, Kropfli RA, Welsh DC, Widener KB (1998) An unattended cloud-profiling radar for use in climate research. Bull Am Meteorol Soc 79:443–455CrossRefGoogle Scholar
  28. Nicolaus M, Hudson SR, Gerland S, Munderloh K (2010) A modern concept for autonomous and continuous measurements of spectral albedo and transmittance of sea ice. Cold Regions Sci Technol 62:14–28CrossRefGoogle Scholar
  29. Nilsson ED, Rannik U, Hakansson M (2001) Surface energy budget over the central Arctic Ocean during late summer and early freeze-up. J Geophys Res 106(D23):32187–32205Google Scholar
  30. Overland JE (2009) The case for global warming in the Arctic. In: Nihoul JCJ, Kostianoy AG (eds) Influence of climate change on the changing Arctic and Sub-Arctic conditions. Springer, Dordrecht, pp. 13–23Google Scholar
  31. Overland JE, Turner J, Francis J, Gillett N, Marshall G, Tjernström M (2008) The Arctic and Antarctic: two faces of climate change. EOS 89:177–184CrossRefGoogle Scholar
  32. Perovich DK (2005) The aggregate-scale portioning of solar radiation in Arctic sea ice during the Surface Heat Budget of the Arctic Ocean (SHEBA) field experiment. J Geophys Res 110(C03002):1–12. doi:10.1029/2004JC002512 Google Scholar
  33. Perovich DK, Richter-Menge JA, Jones KF, Light B (2008) Sunlight, water, and ice: extreme Arctic sea ice melt during the summer of 2007. Geophys Res Lett 35:L11501. doi:10.1029/2008GL034007 CrossRefGoogle Scholar
  34. Persson POG, Fairall CW, Andreas EL, Guest PS, Perovich DK (2002) Measurements near the Atmospheric Surface Flux Group tower at SHEBA: Near-surface conditions and surface energy budget. J Geophys Res 107(8045):1–21. doi:10.1029/2000JC000705 Google Scholar
  35. Polyakov I, Timokhov L, Hansen E, Piechura J, Walczowski W, Ivanov V, Simmons H, Fahrbach E, Hölemann J, Steele M, Pickart R, Fortier L, Schauer U, Beszczynska-Möller A, Holliday NP, Dmitrenko I, Dickson R, Gascard JC, Mauritzen C (2007) Observational program tracks Arctic Ocean transition to a warmer state. EOS Trans 88:398. doi:10.1029/2007EO400002 Google Scholar
  36. Ramanathan V, Cess RD, Harrison EF, Minnis P, Barkstrom BR, Ahmad E, Hartman D (1989) Cloud-radiative forcing and climate: results for the Earth Radiation Budget Experiment. Science 243:57–63CrossRefGoogle Scholar
  37. Rigor IG, Colony RL, Martin S (2000) Variations in surface air temperature observations in the Arctic 1979–1997. J Clim 13:896–914CrossRefGoogle Scholar
  38. Roebber PJ, Bruening SL, Schultz DM, Cortinas JV Jr. (2003) Improving snowfall forecasting by diagnosing snow density. Weather Forecast 18:264–287CrossRefGoogle Scholar
  39. Ruffieux D, Persson POG, Fairall CW, Wolfe DE (1995) Ice pack and lead surface energy budgets during LEADEX 1992. J Geophys Res 100:4593–4612CrossRefGoogle Scholar
  40. Schneider SH (1972) Cloudiness as a global climate feedback mechanism: the effects on the radiation balance and surface temperature variations in cloudiness. J Atmos Sci 29:1413–1422CrossRefGoogle Scholar
  41. Serreze MC, Holland MM, Stroeve J (2007) Perspectives on the Arctic’s shrinking sea-ice cover. Science 315:1533–1536. doi:10.1126/science.1139426 CrossRefGoogle Scholar
  42. Shimada Kea (2006) Pacific Ocean inflow: Influence on catastrophic reduction of sea ice cover in the Arctic Ocean. Geophys Res Let 33:L08605. doi:10.1029/2005GL025624 CrossRefGoogle Scholar
  43. Shupe MD, Intrieri JM (2004) Cloud radiative forcing of the Arctic surface: the influence of cloud properties, surface albedo, and solar zenith angle. J Clim 17:616–628CrossRefGoogle Scholar
  44. Sirevaag A, Fer I (2009) Early spring oceanic heat fluxes and mixing observed from drift stations North of Svalbard. J Phys Oceanogr 39(12):3049–3069. doi:10.1175/2009jpo4172.1 CrossRefGoogle Scholar
  45. Stephens GL (1978) Radiation profiles in extended water clouds. II. Parameterization schemes. J Atmos Sci 35:2123–2132CrossRefGoogle Scholar
  46. Tjernström M, Leck C, Persson POG, Jensen ML, Oncley SP, Targino A (2004) The summertime Arctic atmosphere: meteorological measurements during the Arctic Ocean Experiment (AOE-2001). Bull Am Meteorol Soc 85:1305–1321CrossRefGoogle Scholar
  47. Tjernström M, Zagar M, Svensson G, Cassano JJ, Pfeifer S, Rinke A, Wyser K, Dethloff K, Jones C, Semmler T, Shaw M (2005) Bull Am Meteorol Soc. Boundary Layer Meteorol 117:337–381. doi:10.1007/s10546-004-7954-z CrossRefGoogle Scholar
  48. Walsh JE, Chapman WL (1998) Arctic cloud-radiation-temperature associations in observational data and atmospheric reanalyses. J Clim 11:3030–3045CrossRefGoogle Scholar
  49. Westwater ER, Han Y, Shupe MD, Matrosov SY (2001) Analysis of integrated cloud liquid and precipitable water vapor retrievals from microwave radiometers during SHEBA. J Geophys Res 106:32,019–32,030CrossRefGoogle Scholar
  50. Wilczak JM, Oncley SP, Stage SA (2001) Sonic anemometer tilt correction algorithms. Boundary Layer Meteorol 99:127–150CrossRefGoogle Scholar
  51. Zeng J, Matsunaga T, Mukai H (2008) METEX: a flexible tool for air trajectory calculation. Environ Model Software 25:607–608CrossRefGoogle Scholar
  52. Zhang T, Stamnes K, Bowling SA (2001) Impact of the atmospheric thickness on the atmospheric downwelling longwave radiation and snowmelt under clear-sky conditions in the Arctic and Subarctic. J Clim 14:920–939CrossRefGoogle Scholar
  53. Zhang J, Lindsay R, Steele M, Schweiger A (2008a) What drove the dramatic retreat of arctic sea ice during summer 2007? Geophys Res Lett 35:L11505. doi:10.1029/2008GL034005 CrossRefGoogle Scholar
  54. Zhang X, Sorteberg A, Zhang J, Gerdes R, Comiso JC (2008b) Recent radical shifts of atmospheric circulations and rapid changes in Arctic climate system. Geophys Res Lett 35:L22701. doi:10.1029/2008GL035607 CrossRefGoogle Scholar

Copyright information

© Springer-Verlag 2010

Authors and Affiliations

  • Joseph Sedlar
    • 1
  • Michael Tjernström
    • 1
  • Thorsten Mauritsen
    • 2
  • Matthew D. Shupe
    • 3
  • Ian M. Brooks
    • 4
  • P. Ola G. Persson
    • 3
  • Cathryn E. Birch
    • 4
  • Caroline Leck
    • 1
  • Anders Sirevaag
    • 5
  • Marcel Nicolaus
    • 6
    • 7
  1. 1.Department of MeteorologyStockholm UniversityStockholmSweden
  2. 2.Max Planck Institute for MeteorologyHamburgGermany
  3. 3.University of Colorado and NOAA-ESRL-PSDBoulderUSA
  4. 4.School of Earth and EnvironmentUniversity of LeedsLeedsUK
  5. 5.University of Bergen and Bjerknes Center for Climate ResearchBergenNorway
  6. 6. Norwegian Polar InstituteTromsøNorway
  7. 7.Alfred Wegener Institute for Polar and Marine ResearchBremerhavenGermany

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