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Introduction tohydrology c

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This is the first part of introduction to the global energy and water budget. It contains a simple introduction to Budyko's curves

This is the first part of introduction to the global energy and water budget. It contains a simple introduction to Budyko's curves

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    Introduction tohydrology c Introduction tohydrology c Presentation Transcript

    • Budyko Curve Ecohydrology Franco Fontana, Puglia immaginaria Riccardo RigonMonday, March 11, 13
    • Budyko After Budyko, Climate and Life, 1974 The equation for the conservation of mass of water can be written: 2R. RigonMonday, March 11, 13
    • Budyko The equation for the conservation of mass of water can be written: After Budyko, Climate and Life, 1974 soil moisture storage Time interval evapotranspiration Precipitation Runoff 3R. RigonMonday, March 11, 13
    • Budyko After Budyko, Climate and Life, 1974 The equation for the conservation of mass of water can be written: 4R. RigonMonday, March 11, 13
    • Budyko The equation for the conservation of mass of water can be written: After Budyko, Climate and Life, 1974 Subsurface Runoff Surface Runoff Groundwater recharge 5R. RigonMonday, March 11, 13
    • Budyko Budyko considered basins with area Besides, he choses a time scale to be able to neglect the storage in the equation. Observed that the fluxes are very variable on the annual scale he also chose: 6R. RigonMonday, March 11, 13
    • Budyko Budyko considered basins with area to minimize the effects of groundwater fluxes, that he assumed to be negligible, and the local effects on ET Besides, he choses a time scale to be able to neglect the storage in the equation. Observed that the fluxes are very variable on the annual scale he also chose: 6R. RigonMonday, March 11, 13
    • Budyko From the water budget, after this averaging, he got From which, it can be deduces that the maximum of evapotranspiration is obtained when Q =0 and the storage term is negligible, and therefore: ET max =P 7R. RigonMonday, March 11, 13
    • Budyko Considering when the energy is the limiting factor, the maximum ET is obtained when H= 0, and, as in the water budget, the storage is negligible. In these condition evapotranspiration energy equals the net radiation, and: where the subscript “max” indicates the maximum possible evapotranspiration 8R. RigonMonday, March 11, 13
    • Budyko Or: and: which can be written: 9R. RigonMonday, March 11, 13
    • Budyko Introducing therefore the (Budyko’s) aridity index: When <1 o we have energy-limited environmente, and vice-versa we have water- limited situations. 10R. RigonMonday, March 11, 13
    • Budyko Simple analytical curves where proposed during the year for interpolating the vegetation behavior in the Budyko plane Zhang et al. (2001) 11R. RigonMonday, March 11, 13
    • Budyko Which allow for some quick conclusions about Mean annual evapotranspiration: Zhang et al. (2001) Mean annual runoff: 12R. RigonMonday, March 11, 13
    • Budyko Ecology and Hydrology 13R. RigonMonday, March 11, 13
    • Thank you, Thank you Thank you for your attention. G.Ulrici - Man after having worked at slides , 2000 ? 14R. RigonMonday, March 11, 13
    • List of Symbols List of Symbols 15R. RigonMonday, March 11, 13
    • List of Symbols 16R. RigonMonday, March 11, 13
    • References •ALCAMO, J., Döll, P., HENRICHS, T., KASPAR, F., Lehner, B., RÖSCH, T., and SIEBERT, S. (2003). Global estimates of water withdrawals and availability under current and future “business-as- usual” conditions. Hydrological Sciences Journal, 48(3), 339–348. doi:10.1623/hysj.48.3.339.45278 •Aeschbach-Hertig, W., & Gleeson, T. (2012). Regional strategies for the accelerating global problem of groundwater depletion. Nature Geoscience, 5(12), 853–861. doi:10.1038/ngeo1617 •Amante C. & Eakins B.W., ETOPO1 1 Arc-Minute Global Relief Model: Procedures, Data Sources and Analysis. National Geophysical Data Center, NESDIS, NOAA, United States Department of Commerce, Boulder, CO, August 2008. Available www.ngdc.noaa.gov/mgg/global/ etopo1sources.html • Ball, P. - H2O, a biography of water, Phoenix ed., 1999 •Batjes N.H., ISRIC-WISE Harmonized Global Soil Profile Dataset (Ver. 3.1), Wageningen: ISRIC - World Soil Information, 2008 (ISRIC Report 2008/02) •Baumgartner A. & Reichel E., The World Water Balance. Elsevier, New York, 179 p., 1975 17R. RigonMonday, March 11, 13
    • ReferencesReferences •Bertoldi, G., R. Rigon & T. M. Over, Impact of watershed geomorphic characteristics on the energy and water budgets, Jour. of Hydromet., vol. 7, n. 3, p. 389–403, 2006. •Budyko M.I., Evaporation under natural conditions, Gidrometeorizdat, Leningrad (1948) English translation by IPST, Jerusalem . •Budyko M.I., Climate and life, transl. and edit. by Miller, D. H., Academic Press, London, 1974 •Dingman S., Physical Hydrology, Macmillan Publishing Company, New York, 1994. •Donohue RJ, Roderick M, McVicar TR. 2007. On the importance of including vegetation dynamics in Budyko’s hydrological model. Hydrology and Earth System Sciences 11: 983–995. •F. Serafin, Sull’analisi climatica del tirolo mediante modellazione geostatistica e ricerca dei parametri per la descrizione di funzioni climatiche stagionali, tesi di laurea triennale, realtori R. Rigon e Matteo Dall’Amico, 2011 •Gentine, P., Troy, T. J., Lintner, B. J., & Findell, K. L. (2012). Scaling in Surface Hydrology: Progress and Challenges. Journal of Contemporary Water Research and Education, 147, 28–40. 18R. RigonMonday, March 11, 13
    • References •Global Change in the Geosphere-Biosphere, NRC, 1986, •Hijmans R.J., Condori B., Carillo R., Kropff M.J., A quantitative and constraint-specific method to assess the potential impact of new agricultural technology: the case of frost resistant potato for the Altiplano (Peru and Bolivia). Agricultural Systems, vol. 76, p. 895–911, 2005. •Horton, R.E., The field, scope and status of the science of hydrology, Trans. Am. Geophys. Union, 12, 189-202, 1931 •Gentine, P., Troy, T. J., Lintner, B. J., & Findell, K. L. (2012). Scaling in Surface Hydrology: Progress and Challenges. Journal of Contemporary Water Research and Education, 147, 28–40. •"i mille fiumi" di Arrigo Boetti e Anna-marie Sauzeau-Boetti •Lehner B. & Doll P., Development and validation of a global database of lakes, reservoirs and wetlands. Journal of Hydrology Volume, vol. 296, p. 1-22, 2004 •Lin, B., Stackhouse P.V. Jr., Minnis P., Wielicki B.A., Hu Y., Sun W., Fan T.-F. &, Hinkelman L.M., Assessment of global annual atmospheric energy balance from satellite observations, J. Geophys. Res., vol. 113, D16114, doi: 10.1029/2008JD009869, 2008 19R. RigonMonday, March 11, 13
    • References •Lenton, T. (1998). Gaia and natural selection. Nature, 394, 439-447. • Mitchell, J.M., an overview of climate variability and its causal mechanisms, Quaternary Res., 6, 481-493 •Oki, T. (2006). Global Hydrological Cycles and World Water Resources. Science, 313(5790), 1068–1072. doi:10.1126/science.1128845 •Oldekop E., About evapotranspiration in riverine basins (in Russian). Jurjev (Tartu), 1911 •Peixoto, J.P., and A. H., Oort, The Physics of Climate, AIP, 1992 •Peixoto J.P. & Kettani M.A., The control of the water cycle, Sci. American, vol. 228, p. 46-61, 1973 •Rabus B., Eineder M., Roth A. & Bamler R., The shuttle radar topography mission - a new class of digital elevation models acquired by spaceborne radar, ISPRS Journal of Photogrammetry & Remote Sensing, vol. 57, p. 241-262, 2003 •Rigon R., Bertoldi G. & T. M. Over, GEOtop: A distributed hydrological model with coupled water and energy budgets, Jour. of Hydromet., vol. 7, n. 3, p. 371- 388, 2006. 20R. RigonMonday, March 11, 13
    • References •Shiklomanov I.A. & Sokolov A.A., Methodological basis of world water balance investigation and computation. In: New Approaches in Water Balance Computations. IAHS Publ. no. 148, p. 77-90, 1983 •Shiklomanov, I. A. (2000). World water resources: a new appraisal and assessment for the 21st century; 1998, 1–40. •Simoni S., F. Zanotti, G. Bertoldi & R. Rigon, Modelling the probability of occurrence of shallow landslides and channelized debris flows using GEOtop-FS, Hydrol. Proc., vol. 22, n. 4, p. 532-545, 2007. •Voisin, N., Wood, A. W., & LETTENMAIER, D. P. (2008). Evaluation of Precipitation Products for Global Hydrological Prediction. Journal of Hydrometeorology, 9(3), 388–407. doi:10.1175/2007JHM938.1 •Wallace J.M. & Hobbs P.V., Atmospheric Science An Introductory Survey. Academic Press. New York. 467pp., 1997 •Zhang L., Dawes W.R. & Walker G.R., Response of mean annual evapotranspiration to vegetation changes at catchment scale, Water Resour. Res., vol. 37, p. 701–708, 2001. 21R. RigonMonday, March 11, 13