Computing the Water Budget Components for Lakes by Using Meteorological Data

Rawya Kansoh, Mohamed Abd-El-Mooty, Rania Abd-El-Baky


Lake Mariout located between the longitudes of 29° 49′ and 29° 56′E and latitudes of 31° 04′ and 31° 08′N in Egypt. It is situated on the southern side of Alexandria City, Egypt. The land surrounding the lake is occupied by agriculture field, population zones and fish farms. This makes the lake to serve as a sink to drain different kinds of drainage waters from surrounding catchment areas of Alexandria City. The water of Lake Mariout is pumped to the Mediterranean Sea through El-Max pump station. The water budget was computed by measuring or estimating all of the lake’s water gains and losses. Applying the hydrology budget balance for lakes takes the interaction between the inflow and the outflow water from lakes into account. It is very useful for conservation and better management of water resources. All water budget components of the lake are estimated. Groundwater amount is the most difficult component to be measured or estimated in the water budget equation. Most of the previous studies assumed that the residual of water budget to be the groundwater flow to the lake. The results show that the lake Mariout receives approximately 8.95 m3/d from the main drains which represents the major part of the inflow water to lake. The discharge of El-max pump station is also one of the largest components of the outflow water (102 m3/s), while the water loss by evaporation represents 3.2% of the outflow water from the lake. Moreover, the water gain by rainfall 0.38% of the inflow water. The Groundwater flow to/out the lake was estimated as a residual of the water budget equation. It represents 1.2% of the total inputs for the lake water budget. The result shows that the lake is under severe environmental pressure. One of that is the groundwater comes from catchments areas which may be affect the configuration and operating system management of El-Max pump station by the time running.


Evaporation; Groundwater; Lake Mariout; Out/Inflow Water; Water Budget.


Abd Ellah, Radwan G. "Using hydrological and meteorological data for computing the water budget in Lake Qarun, Egypt." World Journal of Fish and Marine Sciences 1, No. 1 (2009): 46-50.

Motz, Louis H., Gregory D. Sousa, and Michael D. Annable. “Water Budget and Vertical Conductance for Lowry (Sand Hill) Lake in North-Central Florida, USA.” Journal of Hydrology 250, no. 1–4 (September 2001): 134–148. doi:10.1016/s0022-1694(01)00434-6.

Sturrock, A. M., T. C. Winter, and D. O. Rosenberry. “Energy Budget Evaporation from Williams Lake: A Closed Lake in North Central Minnesota.” Water Resources Research 28, no. 6 (June 1992): 1605–1617. doi:10.1029/92wr00553.

Burnett, W. C., R. N. Peterson, S. Chanyotha, G. Wattayakorn, and B. Ryan. “Using High-Resolution in Situ Radon Measurements to Determine Groundwater Discharge at a Remote Location: Tonle Sap Lake, Cambodia.” Journal of Radioanalytical and Nuclear Chemistry 296, no. 1 (July 17, 2012): 97–103. doi:10.1007/s10967-012-1914-8.

Sharma, Tarul, Thakur, Praveen, Nikam, Bhaskar, Garg, Vaibhav. “Water Budget Components Estimation Using Satellite Data and a Hydrological Model.” Conference: Proceedings of Hydro 2013 International 4-6 (Dec 2013) At IIT Madras, Chennai, India.

Marquez, Maritza Flores, Samuel Sandoval-Solis, Alyssa J. DeVicentis, Jose Pablo Ortiz Partida, Erfan Goharian, Bruno R. Britos, Pablo T. Silva Jordan, et al. “Water Budget Development for SGMA Compliance, Case Study: Ukiah Valley Groundwater Basin.” Journal of Contemporary Water Research & Education 162, no. 1 (December 2017): 112–127. doi:10.1111/j.1936-704x.2017.03263.x.

Abera, Wuletawu, Giuseppe Formetta, Marco Borga, and Riccardo Rigon. “Estimating the Water Budget Components and Their Variability in a Pre-Alpine Basin with JGrass-NewAGE.” Advances in Water Resources 104 (June 2017): 37–54. doi:10.1016/j.advwatres.2017.03.010.

Rania Abd-El-Baky, Mohamed Abd-El-Mooty. “Groundwater Hydraulics, Computing Groundwater Inflow/outflow at Lake Qarun, Egypt.” Proceedings of the International Symposium on Managed Aquifer Recharge (May 2019). (ISMAR 10) in Madrid, Spain.

AICZMP. 2009. “AICZMP (Alexandria Integrated Coastal Zone Management Project). Environmental and Social Impact Assessment”, Draft Final Revision Date: October 20th 2009, Arab Republic of Egypt, Ministry of State for Environmental Affairs, Egyptian Environmental Affairs Agency. Available Online: (accessed on 20 March 2020).

Negm, Abdelazim M., Mohamed Ali Bek, and Sommer Abdel-Fattah, eds. “Egyptian Coastal Lakes and Wetlands: Part I.” The Handbook of Environmental Chemistry (2019). doi:10.1007/978-3-319-93590-4.

Abtew, Wossenu. “Evaporation Estimation for Lake Okeechobee in South Florida.” Journal of Irrigation and Drainage Engineering 127, no. 3 (June 2001): 140–147. doi:10.1061/(asce)0733-9437(2001)127:3(140).

Sene, K.J., J.H.C. Gash, and D.D. McNeil. “Evaporation from a Tropical Lake: Comparison of Theory with Direct Measurements.” Journal of Hydrology 127, no. 1–4 (October 1991): 193–217. doi:10.1016/0022-1694(91)90115-x.

Stannard, David I., and Donald O. Rosenberry. “A Comparison of Short-Term Measurements of Lake Evaporation Using Eddy Correlation and Energy Budget Methods.” Journal of Hydrology 122, no. 1–4 (January 1991): 15–22. doi:10.1016/0022-1694(91)90168-h.

Winter, Thomas C., Donald C. Buso, Donald O. Rosenberry, Gene E. Likens, Alex Jr. M. Sturrock, and David P. Mau. “Evaporation Determined by the Energy-Budget Method for Mirror Lake, New Hampshire.” Limnology and Oceanography 48, no. 3 (May 2003): 995–1009. doi:10.4319/lo.2003.48.3.0995.

Lenters, John D., Timothy K. Kratz, and Carl J. Bowser. “Effects of Climate Variability on Lake Evaporation: Results from a Long-Term Energy Budget Study of Sparkling Lake, Northern Wisconsin (USA).” Journal of Hydrology 308, no. 1–4 (July 2005): 168–195. doi:10.1016/j.jhydrol.2004.10.028.

Lee TM and Swancar A “Influence of Evaporation, Ground Water, and Uncertainty in the Hydrologic Budget of Lake Lucerne, a Seepage Lake in Polk County, Florida” (1997). doi:10.3133/wsp2439.

Rosenberry, Donald O., Thomas C. Winter, Donald C. Buso, and Gene E. Likens. “Comparison of 15 Evaporation Methods Applied to a Small Mountain Lake in the Northeastern USA.” Journal of Hydrology 340, no. 3–4 (July 2007): 149–166. doi:10.1016/j.jhydrol.2007.03.018.

Allen, Richard G., Martin Smith, Luis S. Pereira, Dirk Raes, and J. L. Wright. “Revised FAO Procedures for Calculating Evapotranspiration: Irrigation and Drainage Paper No. 56 with Testing in Idaho.” Watershed Management and Operations Management 2000 (May 12, 2001). doi:10.1061/40499(2000)125.

Xiao-zhi, Liu, Li Rong-fang, Da-youn Qing, and Jiang Yun-zhong. “Analysis the Hydrological Situation of the Influx Runoff Series for Poyang Lake.” Procedia Environmental Sciences 10 (2011): 2594–2600. doi:10.1016/j.proenv.2011.09.403.

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DOI: 10.28991/cej-2020-03091545


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