Hydrology and Hydroclimatology

Karamouz, ‪Mohammad; Nazif, Sara; Falahi, M.

doi:10.1201/b13771

Cited by 58 publications

(21 citation statements)

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“…That's why their windward slopes are characterized by abundant precipitation, while leeward slopes, adjacent gorges and basins are distinguished by less precipitation. All this creates very important climate contrast here [10].…”

Section: Basic Circulation Processes -Conditioning Factors Of Precipimentioning

confidence: 99%

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The Influence of Circular Processes on Changes in Precipitation in the Scope of Climate Change

Lagidze¹

2017

GEOMATE

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Global climate change is one of the main problems in the world along with terrorism and poverty. Samtskhe-javakheti region, located in the south of Georgia, is very different from other regions of the country in terms of climate conditionings which is mainly due to local circular processes. Absolute altitude of Samtskhe-Javakheti varies in the 900-3300 m range. It is surrounded by high ridges. Meridian disposition of mentioned ridges weakens the impact of large-scale atmospheric circulation processes developed in the territory of the South Caucasus and significantly strengthens the influence of local complex orographic factors (tablelands, plateaus, basins) that has considerable effect on the cloud regime. Data used in the study is mainly based on observations on atmospheric precipitation (key indicators of precipitation, their monthly and annual amounts), obtained from the following (formerly existing and currently acting in Samtskhe-Javakheti) meteorological stations and weather shelters, namely: Akhalkalaki (1967Akhalkalaki ( -2006, Akhaltsikhe (1971Akhaltsikhe ( -2010 and Paravani (1967Paravani ( -2006. Statistical, climatological and graphical analyses of multi-year (40 year period) meteorological data is used for research. Based on analyses of data, obtained for Samtskhe-Javakheti region, observed for the 10 year periods, a sharp change of monthly and annual amounts (the increase, as well as a reduction in precipitations), was observed.

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Section: Basic Circulation Processes -Conditioning Factors Of Precipimentioning

confidence: 99%

“…Eastern processes are more intense in spring, since during these processes takes place increase of instability of air masses and temperature of underlayer surface that promotes the development of convectional processes [10].…”

Section: Basic Circulation Processes -Conditioning Factors Of Precipimentioning

confidence: 99%

The Influence of Circular Processes on Changes in Precipitation in the Scope of Climate Change

Lagidze¹

2017

GEOMATE

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“…Besides the urban growth, (Karamouz et al, 2013) stated that climate change may also have an effect groundwater level and resources. In relation to groundwater resources, three impacts of climate change are detected: changes in the timing and magnitude of groundwater recharge, changes in the interaction between groundwater and surface water and water retreats.…”

Section: Introductionmentioning

confidence: 99%

Groundwater Level Changes in Shallow Aquifer of Yogyakarta City, Indonesia: Distribution and Causes

2017

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ABSTRACT. The population in Yogyakarta City, Indonesia has increased since 1970, resulting in high groundwater utilization. This normally results in a decline of groundwater level in shallow aquifer beneath the city. However, expansion of the city and urbanization effects can also have the opposite effect and lead to a rise of groundwater levels due to urban recharge. This study investigates groundwater level changes in Yogyakarta City during a time period of 30 years between 1985 and 2015. Collected data in this research are groundwater level, rainfall, population density, sewer system, and land use. Overlaying various spatial information reveals a pattern of groundwater level rise in some areas of the city by 0-12 m, whilst in other areas a decline of 0-9 m is discovered. Rising groundwater levels are mainly found in areas moderate to high population density where sewer system networks have been installed. The rising of groundwater levels is thus expected to be caused by urban recharge and sewers leakage.

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“…These methods were used in Linsley et al (1958), Hewlett et al (1967), Anderson et al (1980), McNamara et al, (1997, Sujono et al (2004), Blume et al (2007), and Gonzales et al (2009). In the constant-discharge method, base flow is assumed as constant regardless of stream flow (discharge) (Karamouz et al, 2012). Base flow is separated from discharge by a straight line beginning at the point o f the lowest discharge prior to the start o f the rising limb (due to storm) o f the hydrograph and extending at a constant discharge until it intersects the recession limb (due to end o f storm) of the hydrograph.…”

Section: Simple Graphical Approachmentioning

confidence: 99%

“…Base flow is separated from discharge by a straight line beginning at the point o f the lowest discharge prior to the start o f the rising limb (due to storm) o f the hydrograph and extending at a constant discharge until it intersects the recession limb (due to end o f storm) of the hydrograph. In Fig In the constant-slope method, a point (inflection point) is selected on the recession limb of the hydrograph where direct runoff ends because in this method it assumes that flow from groundwater aquifer begins prior to the start of the rising limb (Karamouz et al, 2012).…”

Section: Simple Graphical Approachmentioning

confidence: 99%

Groundwater -- surface water interaction under the effects of climate and land use changes.

Saha¹

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Hydrology and Hydroclimatology

Cited by 58 publications

References 0 publications

The Influence of Circular Processes on Changes in Precipitation in the Scope of Climate Change

The Influence of Circular Processes on Changes in Precipitation in the Scope of Climate Change

Groundwater Level Changes in Shallow Aquifer of Yogyakarta City, Indonesia: Distribution and Causes

Groundwater -- surface water interaction under the effects of climate and land use changes.

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