scholarly journals Seasonal water temperature variations in response to air temperature and precipitation in a forested headwater stream and an urban river: a case study from the Bukhan River basin, South Korea

2021 ◽  
Vol 17 (1) ◽  
pp. 46-55
Author(s):  
Sooyoun Nam ◽  
Su-Jin Jang ◽  
Kun-Woo Chun ◽  
Jae Uk Lee ◽  
Suk Woo Kim
Keyword(s):  
South Korea ◽  
Water Temperature ◽  
River Basin ◽  
Air Temperature ◽  
Headwater Stream ◽  
Urban River ◽  
Temperature Variations ◽  
Temperature And Precipitation

scholarly journals The Importance of Water Temperature Fluctuations in Relation to the Hydrological Factor. Case Study – Bistrita River Basin (Romania)

2014 ◽  
Vol 8 (2) ◽  
pp. 183-194 ◽  
Author(s):  
Gianina Maria Cojoc ◽  
Gheorghe Romanescu ◽  
Alina Tirnovan
Keyword(s):  
Water Temperature ◽  
River Basin ◽  
Air Temperature ◽  
Hydrological Regime ◽  
Temperature Fluctuations ◽  
Negative Effects ◽  
The Past ◽  
Ice Jam ◽  
Real Phenomenon

Abstract The increase in most components of the climate over the past 50 years, including air and water temperature, is a real phenomenon, as attested by the numerous specialized researches according to IPCC (2013). The water temperature is one of the most important climatic components in analyzing the hydrological regime of the Bistrita River (Romania). The thermal regime of the Bistrita River basin and the frost phenomena associated with the risk factor are particularly important and frequently appear in this area. In recent years, under the Siret Water Basin Administration, this parameter was permanently monitored, so we could do an analysis, which shows that the water temperature fluctuations, influenced by air temperature, lead to the emergence of the ice jam phenomenon. The present study aims to analyze the water temperature, as compared to the air temperature, and the effect of these components on the liquid flow regime (the values were recorded at the hydrological stations on the main course of the Bistrita River). The negative effects resulted from the ice jam phenomenon require developing methods of damage prevention and defense. The frost phenomena recorded after the construction of the Bicaz dam are analyzed in this article

scholarly journals Air Temperature and Precipitation Climatologies over Paraíba Sul River Basin, Southeast Brazil

2020 ◽  
Vol 43 (1) ◽  
pp. 355-365
Author(s):  
C. S. BRASILIENSE ◽  
C. P. DERECZYNSKI ◽  
P. SATYAMURTY ◽  
S. C. CHOU ◽  
R. N. CALADO
Keyword(s):  
River Basin ◽  
Air Temperature ◽  
Southeast Brazil ◽  
Temperature And Precipitation

scholarly journals On the issue of fluctuations in the extreme maximum runoff under the conditions of the expected climate change in the Marmarik river basin

2020 ◽  
Vol 149 ◽  
pp. 03010
Author(s):  
Varduhi Margaryan ◽  
Elena Fedotova
Keyword(s):  
Climate Change ◽  
River Basin ◽  
Air Temperature ◽  
Global Climate ◽  
Atmospheric Precipitation ◽  
Maximum Flow ◽  
Absolute Maximum ◽  
Temperature And Precipitation ◽  
Runoff Rate ◽  
Maximum Runoff

The paper analyzes the peculiarities of formation of the absolute maximum runoff of the Marmarik river evaluates the patterns of multi-year fluctuations of maximum runoff rates in different river sites and gives a forecast of the maximum runoff in the context of global climate change. Absolute values of the maximum river runoff for different scenarios of climate change are estimated. The actual observational data of Armhydromet for maximum runoff rate, the air temperature and precipitation were used as the source material. As a result of the study, it turned out that there is only a tendency to decrease in the values of maximum runoff. It turned out that for all scenarios and cases in the Marmarik river basin, a different degree of changes in the maximum flow is observed. Moreover, the largest decrease in the maximum runoff of the Marmarik river basin is expected under the conditions of an increase in the average air temperature of the spring season by 2,7—3,9 degrees Celsius and a decrease in the amount of spring atmospheric precipitation by 2,4—2,6 %.

scholarly journals Hydro-Economic Water Allocation Model for Water Supply Risk Analysis: A Case Study of Namhan River Basin, South Korea

2021 ◽  
Vol 13 (11) ◽  
pp. 6005
Author(s):  
Gimoon Jeong ◽  
Doosun Kang
Keyword(s):  
Climate Change ◽  
South Korea ◽  
Water Supply ◽  
River Basin ◽  
Water Allocation ◽  
Economic Valuation ◽  
Supply Risk ◽  
Water Shortages ◽  
Water Supply Risk

Rational water resource management is used to ensure a stable supply of water by predicting the supply of and demand for future water resources. However, rational water allocation will become more difficult in the future owing to the effects of climate change, causing water shortages and disputes. In this study, an advanced hydro-economic water allocation and management model (WAMM) was introduced by improving the optimization scheme employed in conventional models and incorporating the economic value of water. By relying upon economic valuation, the WAMM can support water allocation efforts that focus not only on the stability but also on the economic benefits of water supply. The water supply risk was evaluated following the different objective functions and optimization methods provided by the WAMM using a case study of the Namhan River basin in South Korea under a climate change scenario over the next 30 years. The water shortages and associated economic damage were compared, and the superior ability of WAMM to mitigate future water shortages using economic valuation and full-step linear programming (FSLP) optimization was demonstrated. It is expected that the WAMM can be applied to help resolve water shortages and disputes among river basin units under severe drought conditions.

scholarly journals The tendencies of air temperature and precipitation in the mountainous part of the Prut River basin for the years 2007–2009

2012 ◽  
Vol 2 (40) ◽  
pp. 237-244
Author(s):  
P. Shuber ◽  
V. Berezyak
Keyword(s):  
Climate Change ◽  
Key Words ◽  
River Basin ◽  
Air Temperature ◽  
Meteorological Station ◽  
Temperature And Precipitation ◽  
Prut River

Based of the Pozhyzhevs’ka and Yaremche meteorologie Stations data, the air temperature climatic norm and the precipitation have been determinated for 1961–1990 years. The deviation in comparison with the average air temperature and precipitation the 2007–2009 years from their climatic norm for the Chornohora Landscape of the Highland Pasture and the Liubizhnia Landscape of the Lowland-LowEarth-Lump physico-geographic areas of the Ukrainian Carpathians in the River Prut Basion has been provided for the tendencies analysis of climate change in the study area. The norm climatic value for the air temperature overrun on 1.3 °С at Chornohora Landscape (Pozhyzhevs’ka meteorologic Station) and 1.6 °С at Liubizhnia Landscape (Yaremche meteorological Station) has been identified for period 2007–2009. The overrun of the norm precipitation consist 383.6 mm in the first and 155.2 mm in the second study areas. Key words: precipitation, air temperature, climatic norm, dynamics, Landscape

scholarly journals WATER TEMPERATURE VARIATIONS WITHIN A MAJOR RIVER SYSTEM

1975 ◽  
Vol 6 (3) ◽  
pp. 155-169 ◽  
Author(s):  
K. SMITH
Keyword(s):  
Water Temperature ◽  
Air Temperature ◽  
Stream Flow ◽  
River System ◽  
Daily Maximum ◽  
Main Stream ◽  
Temperature Variations ◽  
River Temperature ◽  
Air Temperatures ◽  
Storm Rainfall

This paper examines the relationships between river water temperature, air temperature and stream flow measured continuously for one year at four sites along the main stream of the river Tees in northern England. Maximum and minimum river temperatures were found to correlate fairly closely with equivalent air temperatures at each site, but some emphasis was placed on the effects of hydrological factors on water temperature variations within the 818 km2 basin. The range of water temperature fluctuations was shown to increase upstream and the highest river maxima were also recorded in the upper reaches of the river, owing to the relatively low volume of discharge. On a shorter time scale, stream flow was also found to exert an important influence on river temperature during snowmelt and peak flow events arising from storm rainfall. A multiple regression analysis indicated that air temperature and stream flow together accounted for up to 85 % of the variation of daily maximum and minimum river temperatures in summer.

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