Atmospheric hydrological cycles in the Arctic and Antarctic during the past four decades

Kazuhiro Oshima, Koji Yamazaki

10.5817/CPR2017-2-17

Atmospheric hydrological cycles over the Arctic and Antarctic have been investigated in the previous studies and there are some similarity and dissimilarity in the two polar regions. The Arctic and Antarctic are areas of moisture flux convergence through the year. So the precipitation (P) exceeds the evaporation (E) and the net precipitation (P-E) is positive. Therefore, the atmospheric moisture transport is a primary input of water into the polar regions. Meanwhile the climatological seasonal cycles of P-E over these regions are dominated by transient moisture flux associated with cyclone activities, the interannual variations are governed by the stationary flux associated with the Arctic Oscillation and the Antarctic Oscillation (AAO). In addition, recent climate changes influence the polar hydrological cycles. Our analyses using an atmospheric reanalysis up to recent years indicated that there were no significant long-term changes in the poleward moisture transport into both the Arctic and Antarctic during 1979-2016. On the other hand, the water vapor (precipitable water) were clearly increasing over the Arctic and gradually decreasing over the Antarctic during the same period. As expected, the increasing trend of water vapor was due to the large warming over the Arctic. There were two reasons for the gradually decreasing trend of water vapor over the Antarctic.  The first one was the positive trend of AAO in summer and the second was deepening trend of the Amundsen low in autumn. The trends in water vapor and temperature during the past 38 years further suggest that both polar regions were getting dryer in several seasons. The trend, however, needs to be confirmed by follow-up climatological analyses.

Arctic, Antarctic, polar region, atmospheric moisture flux, water vapor, precipitable water

References:

Aagaard, K., Carmack, E.C. (1994): The Arctic Ocean and Climate: A Perspective. In: O.M. Johannessen, R.D. Muench and J.E. Overland (eds.): The Polar Oceans and Their Role in Shaping the Global Environment. American Geophysical Union, Washington, D. C., pp. 5-20, doi:10.1029/GM085p0005.

Aagaard, K., Carmack, E. C. (1989): The role of sea ice and other fresh water in the Arctic circulation. Journal of Geophysical Research: Oceans, 94: 14485-14498,

     doi:10.1029/JC094iC10p14485.

Arblaster, J. M., Meehl, G.A. (2006): Contributions of External Forcings to Southern Annular Mode Trends. Journal of Climate, 19: 2896-2905, doi: 10.1175/JCLI3774.1.

Boer, G.J., Fourest, S. and Yu, B. (2001): The Signature of the Annular Modes in the Moisture Budget. Journal of Climate, 14: 3655-3665, doi:10.1175/1520-0442(2001)014<3655:TSOTAM> 2.0.CO;2.

Bromwich, D. H. (1990): Estimates of Antarctic precipitation. Nature, 343: 627-629.

Bromwich, D. H., Robasky, F. M., Cullather, R. I. and Van Woert, M. L. (1995): The Atmospheric Hydrologic Cycle over the Southern Ocean and Antarctica from Operational Numerical Analyses. Monthly Weather Review, 123: 3518-3538, doi:10.1175/1520-0493(1995) 123<3518:TAHCOT>2.0.CO;2.

Comiso, J. C. (2006): Abrupt decline in the Arctic winter sea ice cover, Geophysical Research Letters, 33: L18504, doi:10.1029/2006GL027341.

Comiso, J. C., Parkinson, C. L., Gersten, R. and Stock, L. (2008): Accelerated decline in the Arctic sea ice cover. Geophysical Research Letters, 35: L01703, doi:10.1029/2007GL031972.

Dee, D. P., and 35 co-authors (2011): The ERA-Interim reanalysis: configuration and performance of the data assimilation system. Quarterly Journal of the Royal Meteorological Society, 137: 553-597, doi: 10.1002/qj.828.

Dufour, A., Zolina, O. and Gulev, S. K. (2016): Atmospheric Moisture Transport to the Arctic: Assessment of Reanalyses and Analysis of Transport Components. Journal of Climate, 29: 5061-5081, doi:10.1175/JCLI-D-15-0559.1.

Francis, J. A., Vavrus, S. J. (2012): Evidence linking Arctic amplification to extreme weather in mid-latitudes. Geophysical Research Letters, 39: L06801, doi:10.1029/2012GL051000.

Gong, D., Wang, S. (1999): Definition of Antarctic Oscillation index. Geophysical Research Letters, 26: 459-462, doi:10.1029/1999GL900003.

Oshima, K., Yamazaki, K. (2004): Seasonal variation of moisture transport in polar regions and the relation with annular modes. Polar meteorology and glaciology, 18: 30-53.

Oshima, K., Yamazaki, K. (2006): Difference in seasonal variation of net precipitation between the Arctic and Antarctic regions. Geophysical Research Letters, 33: L18501, doi:10.1029/ 2006GL027389.

Raphael, M. N., Marshall, G. J., Turner, J., Fogt, R. L., Schneider, D., Dixon, D. A., Hosking, J. S., Jones, J. M. and Hobbs, W. R. (2016): The Amundsen Sea Low: Variability, Change, and Impact on Antarctic Climate. Bulletin of the American Meteorological Society, 97: 111-121, doi: 10.1175/BAMS-D-14-00018.1.

Rogers, A. N., Bromwich, D. H., Sinclair, E. N. and Cullather, R. I. (2001): The Atmospheric Hydrologic Cycle over the Arctic Basin from Reanalyses. Part II: Interannual Variability. Journal of Climate, 14: 2414-2429, doi:10.1175/1520-0442(2001)014<2414:TAHCOT>2.0.CO;2.

Screen, J. A., Simmonds, I. (2010): The central role of diminishing sea ice in recent Arctic temperature amplification. Nature, 464: 1334-1337, doi:10.1038/nature09051.

Screen, J. A., Simmonds, I. (2013): Exploring links between Arctic amplification and mid-latitude weather. Geophysical Research Letters, 40: 959-964, doi:10.1002/grl.50174.

Serreze, M.C., Barrett, A.P. and Stroeve, J. (2012): Recent changes in tropospheric water vapor over the Arctic as assessed from radiosondes and atmospheric reanalyses. Journal of Geophysical Research, 117: D10104, doi:10.1029/2011JD017421.

Serreze, M. C., Barry, R.G. (2000): Atmospheric Components of the Arctic Ocean Hydrologic Budget Assessed from Rawinsonde Data. In: E.L. Lewis, E.P. Jones, P. Lemke, T.D. Prowse, and P. Wadhams (eds.): The Freshwater Budget of the Arctic Ocean. Springer Netherlands, Dordrecht.

Serreze, M. C., Barry, R. G. and Walsh, J. E. (1995): Atmospheric Water Vapor Characteristics at 70°N. Journal of Climate, 8: 719-731, doi:10.1175/1520-0442(1995)008<0719:AWVCA> 2.0.CO;2.

Stroeve, J. C., Serreze, M. C., Holland, M. M., Kay, J. E., Malanik, J. and Barrett, A. P. (2012): The Arctic’s rapidly shrinking sea ice cover: a research synthesis. Climatic Change, 110: 1005-1027, doi:10.1007/s10584-011-0101-1.

Thompson, D. W. J., Wallace, J. M. (1998): The Arctic oscillation signature in the wintertime geopotential height and temperature fields. Geophysical Research Letters, 25: 1297-1300, doi:10.1029/98GL00950.

Turner, J., Overland, J. E. and Walsh, J. E. (2007): An Arctic and antarctic perspective on recent climate change. International Journal of Climatology, 27: 277-293, doi:10.1002/joc.1406.

Wang, J., Zhang, J., Watanabe, E., Ikeda, M.,  Mizobata, K.,  Walsh, J. E., Bai, X. and Wu, B. (2009): Is the Dipole Anomaly a major driver to record lows in Arctic summer sea ice extent?. Geophysical Research Letters, 36, L05706, doi:10.1029/2008GL036706.

Yamazaki, K. (1992): Moisture Budget in the Antarctic Atmosphere. Proceedings of the NIPR Symposium on Polar Meteorology and Glaciology, 6: 36-45.

Web sources

[WP1] ECMWF website (http://apps.ecmwf.int/datasets/).

Other sources

[1] IPCC, Climate Change (2013): The Physical Science Basis. Contribution of Working Group I to the Fifth Assessment Report (AR5) of the Intergovernmental Panel on Climate Change. T.F. Stocker, D. Qin, G.-K. Plattner, M. Tignor, S.K. Allen, J. Boschung, A. Nauels, Y. Xia, V. Bex and P.M. Midgley (eds.), Cambridge University Press, 1535 p.