Investigation of the snow-cover dynamics in the Upper Euphrates Basin of Turkey using remotely sensed snow-cover products and hydrometeorological data

Date

2011-11-15

Author

Akyürek, Sevda Zuhal
Beser, Ozgur

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

165
views

0
downloads

The Euphrates and Tigris rivers serve as the most important water resources in the Middle East. Precipitation in this region falls mostly in the form of snow over the higher elevations of the Euphrates Basin and remains on the ground for nearly half of the year. This snow-covered area (SCA) is a key element of the hydrological cycle, and monitoring the SCA is crucial for making accurate forecasts of snowmelt discharge, especially for energy production, flood control, irrigation, and reservoir-operation optimization in the Upper Euphrates (Karasu) Basin. Remote sensing allows the detection of the spatio-temporal patterns of snow cover across large areas in inaccessible terrain, such as the eastern part of Turkey, which is highly mountainous. In this study, a seasonal evaluation of the snow cover from 2000 to 2009 was performed using 8-day snow-cover products (MOD10C2) and the daily snow-water equivalent (SWE) product. The values of SWE products were obtained using an assimilation process based on the Helsinki University of Technology model using equal area Special Sensor Microwave Imager (SSM/I) Earth-gridded advanced microwave scanning radiometer-EOS daily brightness-temperature values. In the Karasu Basin, the SCA percentage for the winter period is 80-90%. The relationship between the SCA and the runoff during the spring period is analysed for the period from 2004 to 2009. An inverse linear relationship between the normalized SCA and the normalized runoff values was obtained (r = 0.74). On the basis of the monthly mean temperature, total precipitation and snow depth observed at meteorological stations in the basin, the decrease in the peak discharges, and early occurrences of the peak discharges in 2008 and 2009 are due to the increase in the mean temperature and the decrease in the precipitation in April (C) Copyright. 2011 John Wiley & Sons, Ltd.

Subject Keywords

MODIS, Snow, Discharge, Modelling

URI

https://hdl.handle.net/11511/47193

Journal

HYDROLOGICAL PROCESSES

DOI

https://doi.org/10.1002/hyp.8090

Collections

Department of Civil Engineering, Article

Suggestions

OpenMETU
Core

Application of the SRM and SLURP models in eastern Turkey using remote sensing and geographic information systems Sorman, U; Uzunoglu, E; Kaya, HI (2000-04-07) Today, global climatic issues and the water security problems resulting from the increasing water demand for hydropower and agricultural purposes from the rivers Tigris and Euphrates, in the Middle East, are quite important. The Snowmelt Runoff Model (SRM) was applied to the Karasu basin located in the upper Euphrates River drainage basin, in order to simulate and forecast the runoff from snow melting. A second study covered the application of the hydrological model SLURP-11 at a smaller scale. In combinati...
Evaluation of heavy metal contents, polyaromatic petroleum hydrocarbons and some inorganic pollutants in the south Marmara rivers, Turkey Yılmaz, Ayşen; Yemenicioglu, S; Aksoy, S; Torunoglu, T (1998-05-01) Nilufer River is the main receiving body of water for the industrial and domestic wastes of 1.000.000 populated Bursa metropolitan area and it combines with Kocasu River before entering the sea at the south Marmara region, Turkey. Variations in concentrations of Na, K, Ca, Mg, Fe, Cl, SO4, PO4, NH4, NO3, NO2, BOD5, COD, polyaromatic petroleum hydrocarbons (PAH), pH and some heavy metals (Hg, Cd, Cr, Zn, Pb) were seasonally determined in 1991-94 period. The results showed that these rivers are included in th...
Analysis of extreme rainfall trend and mapping of the Wadi pluvial flood in the Gaza coastal plain of Palestine Al-Najjar, Hassan; Purnama, Anton; Özkan, Korhan; Abualtayef, Mazen (2022-09-01) In the eastern Mediterranean region of the Middle East and North Africa, pluvial flooding has become a common and severe climate change consequence event that requires immediate attention. The Wadi-Gaza basin is a critical source of surface water in Palestine; nevertheless, climate change and anthropogenic processes are altering the basin's hydrological features, resulting in a series of extreme and disastrous flooding events in the coastal plain at the basin downstream. The Mann-Kendall test, Sen's slope e...
Using MODIS snow cover maps in modeling snowmelt runoff process in the eastern part of Turkey Tekeli, AE; Akyürek, Sevda Zuhal; Sorman, AA; Sensoy, A; Sorman, AU (Elsevier BV, 2005-07-30) Water perhaps is the most valuable natural asset in the Middle East as it was a historical key for settlement and survival in Mesopotamia, "the land between two rivers". At present, the Euphrates and Tigris are the two largest trans-boundary rivers in Western Asia where Turkey, Syria, Iran, Iraq and Saudi Arabia are the riparian countries. The Euphrates and Tigris basins are largely fed from snow precipitation whereby nearly two-thirds occur in winter and may remain in the form of snow for half of the year....
Exploring the dynamics of small pelagic fish catches in the marmara sea in relation to changing environmental and bio-optical parameters Akoğlu, Ekin (2021-01-01) The Marmara Sea has a large drainage basin that includes cities with heavy industrialisation and agricultural land use. Therefore, it is under the influence of significant anthropogenic activities that adversely affect the well-being of its ecosystem. The Marmara Sea is also an important fishing ground with many commercially important fish species. These fish species are also under the influence of the adverse impacts of anthropogenic activities. Fisheries catches in the Marmara Sea had experienced severe f...

Citation Formats

S. Z. Akyürek and O. Beser, “Investigation of the snow-cover dynamics in the Upper Euphrates Basin of Turkey using remotely sensed snow-cover products and hydrometeorological data,” HYDROLOGICAL PROCESSES, pp. 3637–3648, 2011, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/47193.