References

ACP

Atmospheric Chemistry and Physics

ACP

1680-7324

Copernicus GmbH

Göttingen, Germany

10.5194/acp-11-7601-2011

Potential evaporation trends over land between 1983–2008: driven by radiative fluxes or vapour-pressure deficit?

Matsoukas

¹ Benas

² Hatzianastassiou

³ Pavlakis

K. G.

⁴ Kanakidou

⁵ Vardavas

Department of Environment, University of the Aegean, Mytilene, Greece

Department of Physics, University of Crete, Heraklion, Greece

Laboratory of Meteorology, Department of Physics, University of Ioannina, Ioannina, Greece

Department of General Applied Science, Technological Educational Institute of Crete, Heraklion, Greece

Environmental Chemical Processes Laboratory, Department of Chemistry, University of Crete, Heraklion, Greece

01 08 2011

11 15 7601 7616

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We model the Penman potential evaporation (PE) over all land areas of the globe for the 25-yr period 1983–2008, relying on radiation transfer models (RTMs) for the shortwave and longwave fluxes. Penman's PE is determined by two factors: available energy for evaporation and ground to atmosphere vapour transfer. Input to the PE model and RTMs comprises satellite cloud and aerosol data, as well as data from reanalyses. PE is closely linked to pan evaporation, whose trends have sparked controversy in the community, since the factors responsible for the observed pan evaporation trends are not determined with consensus. Our particular interest is the temporal evolution of PE, and the provided insight to the observed trends of pan evaporation. We examine the decadal trends of PE and various related physical quantities, such as net solar flux, net longwave flux, water vapour saturation deficit and wind speed. Our findings are the following: Global warming has led to a larger water vapour saturation deficit. The periods 1983–1989, 1990–1999, and 2000–2008 were characterised by decreasing, increasing, and slightly decreasing PE, respectively. In these last 25 yr, global dimming/brightening cycles generally increased the available energy for evaporation. PE trends seem to follow more closely the trends of energy availability than the trends of the atmospheric capability for vapour transfer, at most locations on the globe, with trends in the Northern hemisphere significantly larger than in the Southern. These results support the hypothesis that global potential evaporation trends are attributed primarily to secular changes in the radiation fluxes, and secondarily to vapour transfer considerations.

References 1

Beljaars, A. C M. and Holtslag, A. A M.: Flux parameterization over land surfaces for atmospheric models, J. Appl. Meteorol., 30, 327–341, 1991.

Berrisford, P., Dee, D., Fielding, K., Fuentes, M., Kållberg, P., Kobayashi, S., and Uppala, S.: The ERA-Interim archive, vol 1 of \em ERA report series\/, ECMWF, Shinfield Park, Reading, UK, 2009.

Bouchet, R J.: \'Evapotranspiration réelle et potentielle. Signification climatique, Tech. Rep 62, Int. Assoc. Sci. Hydrol., 1963.

Brutsaert, W.: Evaporation into the atmosphere, Reidel, Dordrecht, The Netherlands, 1982.

Brutsaert, W.: Indications of increasing land surface evaporation during the second half of the 20th century, Geophys. Res. Lett., 33, L20403, http://dx.doi.org/10.1029/2006GL027532doi:10.1029/2006GL027532, 2006.

Brutsaert, W. and Parlange, M B.: Hydrologic cycle explains the evaporation paradox, Nature, 396, 30, 1998.

Chattopadhyay, N. and Hulme, M.: Evaporation and potential evapotranspiration in India under conditions of recent and future climate change, Agric. For. Meteorol., 87, 55–73, 1997.

Chow, V T., Maidment, D R., and Mays, L W.: Applied Hydrology, McGraw-Hill, New York, NY, USA, 1988.

Cohen, S., Ianetz, A., and Stanhill, G.: Evaporative climate changes at Bet Dagan, Israel, 1964–1998, Agric. For. Meteorol., 111, 83–91, 2002.

Evan, A T., Heidinger, A K., and Vimont, D J.: Arguments against a physical long-term trend in global ISCCP cloud amounts, Geophys. Res. Lett., 34, L04701, http://dx.doi.org/10.1029/2006GL028083doi:10.1029/2006GL028083, 2007.

Fotiadi, A., Hatzianastassiou, N., Matsoukas, C., Pavlakis, K G., Drakakis, E., Hatzidimitriou, D., and Vardavas, I.: Analysis of the decrease in the tropical mean outgoing shortwave radiation at the top of atmosphere for the period 1984–-2000, 5, 1721–1730, 2005.

Fu, G., Charles, S P., and Yu, J.: A critical overview of pan evaporation trends over the last 50 years, Clim. Change, 97, 193–214, http://dx.doi.org/10.1007/s10584-009-9579-1doi:10.1007/s10584-009-9579-1, 2009.

Golubev, V S., Lawrimore, J H., Groisman, P Y., Speranskaya, N A., Zhuravin, S A., Menne, M J., Peterson, T C., and Malone, R W.: Evaporation changes over the contiguous United States and the former USSR: A reassessment, Geophys. Res. Lett., 28, 2665–2668, 2001.

Hartmann, D L.: Global physical climatology, Academic Press, London, UK, 1994.

Hatzianastassiou, N. and Vardavas, I.: Shortwave radiation budget of the Northern Hemisphere using International Satellite Cloud Climatology Project and NCEP/NCAR climatological data, J. Geophys. Res., 104(D20), 24401–24421, 1999.

Hatzianastassiou, N. and Vardavas, I.: Shortwave radiation Budget of the Southern Hemisphere using ISCCP C2 and NCEP-NCAR climatological data, J. Climate, 14, 4319–4329, 2001a.

Hatzianastassiou, N. and Vardavas, I.: Longwave radiation budget of the Southern Hemisphere using ISCCP C2 climatological data, J. Geophys. Res., 106(D16), 17785–17798, 2001b.

Hatzianastassiou, N., Croke, B., Kortsalioudakis, N., Vardavas, I., and Koutoulaki, K.: A model for the longwave radiation budget of the NH: Comparison with Earth Radiation Budget Experiment data, J. Geophys. Res., 104(D8), 9489–9500, 1999.

Hatzianastassiou, N., Katsoulis, B., and Vardavas, I.: Global distribution of aerosol direct radiative forcing in the ultraviolet and visible arising under clear skies, Tellus, 56B, 51–71, 2004a.

Hatzianastassiou, N., Matsoukas, C., Hatzidimitriou, D., Pavlakis, C., Drakakis, M., and Vardavas, I.: Ten-year radiation budget of the Earth: 1984–1993, Int. J. Climatol., 24, 1785–1802, http://dx.doi.org/10.1002/joc.1110doi:10.1002/joc.1110, 2004b.

Hatzianastassiou, N., Matsoukas, C., Fotiadi, A., Pavlakis, K. G., Drakakis, E., Hatzidimitriou, D., and Vardavas, I.: Global distribution of Earth's surface shortwave radiation budget, Atmos. Chem. Phys., 5, 2847–2867, http://dx.doi.org/10.5194/acp-5-2847-2005doi:10.5194/acp-5-2847-2005, 2005.

Hatzianastassiou, N., Matsoukas, C., Drakakis, E., Stackhouse, P W., Koepke, P., Fotiadi, A., Pavlakis, K G., and Vardavas, I.: The direct effect of aerosols on solar radiation based on satellite observations, reanalysis datasets, and spectral aerosol optical properties from Global Aerosol Data Set (GADS), 7, 2585–2599, 2007a.

Hatzianastassiou, N., Matsoukas, C., Fotiadi, A., P. W. Stackhouse Jr., Koepke, P., Pavlakis, K. G., and Vardavas, I.: Modelling the direct effect of aerosols in the solar near-infrared on a planetary scale, Atmos. Chem. Phys., 7, 3211–3229, http://dx.doi.org/10.5194/acp-7-3211-2007doi:10.5194/acp-7-3211-2007, 2007b.

Hatzidimitriou, D., Vardavas, I., Pavlakis, K. G., Hatzianastassiou, N., Matsoukas, C., and Drakakis, E.: On the decadal increase in the tropical mean outgoing longwave radiation for the period 1984-2000, Atmos. Chem. Phys., 4, 1419–1425, http://dx.doi.org/10.5194/acp-4-1419-2004doi:10.5194/acp-4-1419-2004, 2004.

Huntington, T G.: Evidence for intensification of the global water cycle: Review and synthesis, J. Hydrol., 319, 83–95, 2006.

Johnson, F. and Sharma, A.: A comparison of Australian open water body evaporation trends for current and future climates estimated from Class A evaporation pans and General Circulation Models, J. Hydrometeor., 11, 105–121, http://dx.doi.org/10.1175/2009JHM1158.1doi:10.1175/2009JHM1158.1, 2010.

Joseph, J H., Wiscombe, W J., and Weinmann, J A.: The Delta- Eddington approximation of radiative flux transfer, J. Atmos. Sci., 33, 2452–2459, 1976.

Jovanovic, B., Jones, D A., and Collins, D.: A high-quality monthly pan evaporation dataset for Australia, Clim. Change, 87, 517–535, http://dx.doi.org/10.1007/s10584-007-9324-6doi:10.1007/s10584-007-9324-6, 2008.

Kistler, R., Kalnay, E., Collins, W., Saha, S., White, G., Woolen, J., Chelliah, M., Ebisuzaki, W., Kanamitsu, M., Kousky, V., van~den Dool, H., Jenne, R., and Fiorino, M.: The NCEP-NCAR 50-year reanalysis: Monthly means CD-ROM and documentation, B. Am. Meteorol. Soc., 82, 247–268, 2001.

Köpke, P., Hess, M., Schult, I., and Shettle, E P.: Global Aerosol Data Set, Tech. Rep. 234, Max Planck Institute für Meteorologie, 1997.

Lawrimore, J H. and Peterson, T C.: Pan evaporation trends in dry and humid regions of the United States, J. Hydrol., 1, 543–546, 2000.

Linacre, E T.: Evaporation trends, Theor. Appl. Climatol., 79, 11–21, 2004.

Liu, B., Xu, M., Henderson, M., and Gong, W.: A spatial analysis of pan evaporation trends in China, 1955–2000, J. Geophys. Res., 109, D15102, http://dx.doi.org/10.1029/2004JD004511doi:10.1029/2004JD004511, 2004.

Mahrt, L. and Ek, M.: The influence of atmospheric stability on potential evaporation, J. Climate Appl. Meteor., 23, 222–234, 1993.

Matsoukas, C., Banks, A C., Hatzianastassiou, N., Pavlakis, K G., Hatzidimitriou, D., Drakakis, E., Stackhouse, P W., and Vardavas, I.: Seasonal energy budget of the Mediterranean Sea, J. Geophys. Res., 110, C12008, http://dx.doi.org/10.1029/2004JC002566doi:10.1029/2004JC002566, 2005.

Matsoukas, C., Banks, A C., Pavlakis, K G., Hatzianastassiou, N., Jr., P. W S., and Vardavas, I.: Seasonal heat budgets of the Red and Black seas, J. Geophys. Res., 112, C10017, http://dx.doi.org/10.1029/2006JC003849doi:10.1029/2006JC003849, 2007.

Matsoukas, C., Hatzianastassiou, N., Fotiadi, A., Pavlakis, K G., and Vardavas, I.: The effect of Arctic sea-ice extent on the absorbed (net) solar flux at the surface, based on ISCCP-D2 cloud data for 1983–-2007, Atmos. Chem. Phys., 10, 777–787, http://dx.doi.org/10.5194/acp-10-777-2010doi:10.5194/acp-10-777-2010, 2010.

McVicar, T R., Niel, T. G V., Li, L T., Roderick, M L., Rayner, D P., Ricciardulli, L., and Donohue, R J.: Wind speed climatology and trends for Australia, 1975–2006: Capturing the stilling phenomenon and comparison with near-surface reanalysis output, Geophys. Res. Lett., 35, L20403, http://dx.doi.org/10.1029/2008GL035627doi:10.1029/2008GL035627, 2008.

Morton, F I.: Estimating evaporation and transpiration from climatological observations, J. Appl. Meteorol., 14, 488–497, 1975.

Pavlakis, K. G., Hatzidimitriou, D., Matsoukas, C., Drakakis, E., Hatzianastassiou, N., and Vardavas, I.: Ten-year global distribution of downwelling longwave radiation, Atmos. Chem. Phys., 4, 127–142, http://dx.doi.org/10.5194/acp-4-127-2004doi:10.5194/acp-4-127-2004, 2004.

Pavlakis, K. G., Hatzidimitriou, D., Drakakis, E., Matsoukas, C., Fotiadi, A., Hatzianastassiou, N., and Vardavas, I.: ENSO surface longwave radiation forcing over the tropical Pacific, Atmos. Chem. Phys., 7, 2013–2026, http://dx.doi.org/10.5194/acp-7-2013-2007doi:10.5194/acp-7-2013-2007, 2007.

Pavlakis, K. G., Hatzianastassiou, N., Matsoukas, C., Fotiadi, A., and Vardavas, I.: ENSO surface shortwave radiation forcing over the tropical Pacific, Atmos. Chem. Phys., 8, 5565–5577, http://dx.doi.org/10.5194/acp-8-5565-2008doi:10.5194/acp-8-5565-2008, 2008.

Penman, H L.: Natural evaporation from open water, bare soil and grass, Proc. Roy. Soc. Lnd., A193, 120–146, 1948.

Peterson, T C., Golubev, V S., and Groisman, P Y.: Evaporation losing its strength, Nature, 377, 687–688, 1995.

Pryor, S C., Barthelmie, R J., Young, D T., Takle, E S., Arritt, R W., Flory, D., Jr., W. J G., Nunes, A., and Roads, J.: Wind speed trends over the contiguous United States, J. Geophys. Res., 114, D14105, http://dx.doi.org/10.1029/2008JD011416doi:10.1029/2008JD011416, 2009.

Roderick, M L. and Farquhar, G D.: The cause of decreased pan evaporation over the past 50 years, Science, 298, 1410–1411, 2002.

Roderick, M L. and Farquhar, G D.: Changes in Australian pan evaporation from 1970 to 2002, Int. J. Climatol., 24, 1077–1090, http://dx.doi.org/10.1002/joc.1061doi:10.1002/joc.1061, 2004.

Roderick, M L., Rotstayn, L D., Farquhar, G D., and Hobbins, M T.: On the attribution of changing pan evaporation, Geophys. Res. Lett., 34, L17403, http://dx.doi.org/10.1029/2007GL031166doi:10.1029/2007GL031166, 2007.

Roderick, M L., Hobbins, M T., and Farquhar, G D.: Pan Evaporation Trends and the Terrestrial Water Balance. I. Principles and Observations, Geogr. Comp., 3, 746–760, http://dx.doi.org/10.1111/j.1749-8198.2008.00213.xdoi:10.1111/j.1749-8198.2008.00213.x, 2009.

Roeckner, E., Bengtsson, L., Feichter, J., Lelieveld, J., and Rodhe, H.: Transient climate change simulations with a coupled Atmosphere–Ocean GCM including the tropospheric sulfur cycle, J. Climate, 12, 3004–3032, 1999.

Rosenberry, D O., Stannard, D I., Winter, T C., and Martinez, M L.: Comparison of 13 equations for determining evapotranspiration from a prairie wetland, Cottonwood Lake Area, North Dakota, USA, Wetlands, 24, 483–497, 2004.

Rosenberry, D O., Winter, T C., Buso, D C., and Likens, G E.: Comparison of 15 evaporation methods applied to a small mountain lake in the northeastern USA, J. Hydrol., 340, 149–166, http://dx.doi.org/10.1016/j.jhydrol.2007.03.018doi:10.1016/j.jhydrol.2007.03.018, 2007.

Rossow, W B. and Schiffer, R A.: Advances in understanding clouds from ISCCP, B. Am. Meteorol. Soc., 80, 2261–2286, 1999.

Shuttleworth, W J.: Evaporation, in: Handbook of Hydrology, edited by: Maidment, D R., McGraw-Hill, 1993.

Stanhill, G. and Cohen, S.: Global dimming: a review of the evidence for a widespread and significant reduction in global radiation with discussion of its probable causes and possible agricultural consequences, Agric. For. Meteorol., 107, 255–278, 2001.

Tanny, J., Cohen, S., Assouline, S., Lange, F., Grava, A., Berger, D., Teltch, B., and Parlange, M B.: Evaporation from a small water reservoir: Direct measurements and estimates, J. Hydrol., 351, 218–229, http://dx.doi.org/10.1016/j.jhydrol.2007.12.012doi:10.1016/j.jhydrol.2007.12.012, 2008.

Teuling, A J., Hirschi, M., Ohmura, A., Wild, M., Reichstein, M., Ciais, P., Buchmann, N., Ammann, C., Montagnani, L., Richardson, A D., Wohlfahrt, G., and Seneviratne, S I.: A regional perspective on trends in continental evaporation, Geophys. Res. Lett., 36, L02404, http://dx.doi.org/10.1029/2008GL036584doi:10.1029/2008GL036584, 2009.

Thekaekara, M P. and Drummond, A J.: Standard values for the solar constant and its spectral components, Nat. Phys. Sci., 229, 6–9, 1971.

Trenberth, K E., Fasullo, J., and Smith, L.: Trends and variability in column-integrated atmospheric water vapor, Clim. Dynam., 24, 741–758, http://dx.doi.org/10.1007/s00382-005-0017-4doi:10.1007/s00382-005-0017-4, 2005.

Uppala, S M. et~al.: The ERA-40 re-analysis, Quart. J. Roy. Meteorol. Soc., 131, 2961–3012, http://dx.doi.org/10.1256/qj.04.176doi:10.1256/qj.04.176, 2005.

Vardavas, I M. and Carver, J H.: Solar and terrestrial parameterizations for radiative-convective models, Planet. Space Sci., 32, 1307–1325, 1984.

Vardavas, I M. and Taylor, F W.: Radiation and Climate, vol. 138 of International Series of Monographs on Physics, Oxford University Press, Oxford, 2007.

Vautard, R., Cattiaux, J., Yiou, P., Thépaut, J.-N., and Ciais, P.: Northern Hemisphere atmospheric stilling partly attributed to an increase in surface roughness, Nat. Geosci., 3, 756–761, http://dx.doi.org/10.1038/ngeo979doi:10.1038/ngeo979, 2010.

Wetherald, R T. and Manabe, S.: Simulation of hydrologic changes associated with global warming, J. Geophys. Res., 107, 4379, http://dx.doi.org/10.1029/2001JD001195doi:10.1029/2001JD001195, 2002.

Wild, M.: Global dimming and brightening: A review, J. Geophys. Res., 114, D00D16, http://dx.doi.org/10.1029/2008JD011470doi:10.1029/2008JD011470, 2009.

Wild, M., Ohmura, A., Gilgen, H., and Rosenfeld, D.: On the consistency of trends in radiation and temperature records and implications for the global hydrological cycle, Geophys. Res. Lett., 31, L11201, http://dx.doi.org/10.1029/2003GL019188doi:10.1029/2003GL019188, 2004.

Wild, M., Grieser, J., and Schär, C.: Combined surface solar brightening and increasing greenhouse effect support recent intensification of the global land-based hydrological cycle, Geophys. Res. Lett., 35, L17706, http://dx.doi.org/10.1029/2008GL034842doi:10.1029/2008GL034842, 2008.

Wild, M., Trüssel, B., Ohmura, A., Long, C N., König-Langlo, G., Dutton, E G., and Tsvetkov, A.: Global dimming and brightening: An update beyond 2000, J. Geophys. Res., 114, D00D13, http://dx.doi.org/10.1029/2008JD011382doi:10.1029/2008JD011382, 2009.

Willson, R C.: Total solar irradiance trend during solar cycles 21 and 22, Science, 277, 1963–1965, 1997.

Winter, T C., Rosenberry, D O., and Sturrock, A M.: Evaluation of 11 equations for determining evaporation for a small lake in the north central United-States, Water Resour. Res., 31, 983–993, 1995.

Zhang, Y., Liu, C., Tang, Y., and Yang, Y.: Trends in pan evaporation and reference and actual evapotranspiration across the Tibetan plateau, J. Geophys. Res., 112, D12110, http://dx.doi.org/10.1029/2006JD008161doi:10.1029/2006JD008161, 2007.