Analysis of long-term fluctuations in stream flow time series: An Application to Litani River, Lebanon

• Autorzy: Shaban A. , Telesca L. , Darwich T. , Amacha N.

Identyfikatory

DOI

10.2478/s11600-013-0175-4

• Języki publikacji: EN

Abstrakty

EN

Litani River is the largest river in Lebanon and has been affected by several physical and anthropogenic factors that influenced its flow dynamics. By means of the Singular Spectrum Analysis (SSA), the time dynamics of the stream flow of seven sites along the course of Litani River was investigated, extracting for each site the long-term trend. A clear decreasing trend characterizes all the long-term trends of the stream flow. Furthermore, several peaks were identified, consistent with the rainfall rate and snow cover variability.

Słowa kluczowe

EN

runoff; singular spectrum analysis; springs; Lebanon

PL

analiza widma szczególnego; sprężyny; Liban

• Wydawca: Instytut Geofizyki PAN ; Springer
• Czasopismo: Acta Geophysica
• Rocznik: 2014
• Tom: Vol. 62, no. 1
• Strony: 164--179
• Opis fizyczny: Bibliogr. 19 poz.

Twórcy

autor

Shaban A.

• Conseil National des Recherches Scientifiques, Beirut, Lebanon

autor

Telesca L.

• Consiglio Nazionale delle Ricerche, Istituto di Metodologie per l’Analisi Ambientale Tito, Italy

autor

Darwich T.

• Conseil National des Recherches Scientifiques, Beirut, Lebanon

autor

Amacha N.

• Litani River Authority, Beirut, Lebanon

Bibliografia

• 1.Artis, M.J., J.G. Clavel, M. Hoffmann, and D.M. Nachane (2007), Harmonic regression models: A comparative review with applications, Institute for Empirical Research in Economics, University of Zurich, Working Paper No. 333, http://ssrn.com/abstract=1017519.
• 2.Assaf, H., and M. Saadeh (2008), Assessing water quality management options in the Upper Litani Basin, Lebanon, using an integrated GIS-based decision support system, Environ. Modell. Softw. 23, 10-11, 1327-1337, DOI:10.1016/j.envsoft.2008.03.006.
• 3.Bou-Zeid, E., and M. El-Fadel (2002), Climate change and water resources in Lebanon and the Middle East, J. Water Resour .Plann. Manage. 128, 5, 343-355, DOI: 10.1061/(ASCE)0733-9496(2002)128:5(343).
• 4.El-Fadel, M., M. Zeinati, and D. Jamali (2000), Water resources in Lebanon: characterization, water balance, and constraints, Int. J. Water Resour. Develop. 16, 4, 615-638, DOI: 10.1080/713672540.
• 5.Findley, D.F., B.C. Monsell, W.R. Bell, M.C. Otto, and B.-C. Chen (1998), New capabilities and methods of the X-12-ARIMA seasonal-adjustment program, J. Bus. Econ. Stat. 16, 2, DOI: 10.1080/07350015.1998.10524743
• 6.Gómez, V., and A. Maravall (1996), Programs TRAMO and SEATS: Instruction for User, Bank of Spain, Madrid, Working Paper No. 9628.
• 7.Koopman, S.J. (1993), Disturbance smoother for state space models, Biometrika 80, 1, 117-126, DOI: 10.1093/biomet/80.1.117.
• 8.LRA (2012), Litani River Authority, discharge records (unpublished).
• 9.NOAA (2012), National Oceanographic Data Center. NOAA Central Library, http://docs.lib.noaa.gov/rescue/data_rescue_lebanon.html#o48764368.
• 10.Ramadan, H.H., R.E. Beighley, and A.S. Ramamurthy (2012), Modelling streamflow trends for a watershed with limited data: case of the Litani basin, Lebanon, Hydrol. Sci. J. 57, 8, 1516-1529, DOI: 10.1080/02626667. 2012.727212.
• 11.Ramadan, H., R. Beighley, and A. Ramamurthy (2013), Temperature and precipitation trends in Lebanon’s largest river: The Litani Basin, J. Water Resour. Plann. Manage. 139, 1, 86-95, DOI: 10.1061/(ASCE)WR.1943-5452. 0000238.
• 12.Saadeh, M., L. Semerjian, and N. Amacha (2012), Physicochemical evaluation of the Upper Litani River Watershed, Lebanon, The Sci. World J. 2012, 462-467, DOI: 10.1100/2012/462467.
• 13.Schoellhamer, D.H. (2001), Singular spectrum analysis for time series with missing data, Geophys. Res. Lett. 28, 16, 3187-3190, DOI: 10.1029/2000GL012698.
• 14.Shaban, A. (2011), Analyzing climatic and hydrologic trends in Lebanon, J. Environ. Sci. Eng. 5, 483-492.
• 15.Slim, K., A. Atoui, G. Elzein, and M. Temsah (2012), Effets des facteurs environnementaux sur la qualité de l’eau et la prolifération toxique des cyanobactéries du lac KARAOUN (Liban), Larhyss J. 10, 29-43 (in French).
• 16.Vautard, R., and M. Ghil (1989), Singular spectrum analysis in nonlinear dynamics, with applications to paleoclimatic time series, Physica D 35, 3, 395-424, DOI: 10.1016/0167-2789(89)90077-8.
• 17.WISE (2013), Climate and meteorology in the Litani basin, Lebanon, Water Information System for Europe, Water Knowledge Portal, http://www.wisertd. info/en/info/13-climate-and-meteorology-litani-basin-lebanon.
• 18.Young, P.C. (1991), Comments on likelihood and cost as path integrals, J. Roy. Statist. Soc. B 53, 3, 529-531.
• 19.Young, P.C., D.J. Pedregal, and W. Tych (1999), Dynamic harmonic regression, J. Forecasting 18, 6, 369-394, DOI: 10.1002/(SICI)1099-131X(199911) 18:6<369::AID-FOR748>3.0.CO;2-K.