Modeling of the long-term annual and seasonal runoff in the Lena river basin

2021 ◽  
Author(s):  
Alla Krylova ◽  
Natalya Lapteva
Keyword(s):  
River Basin ◽  
Lena River ◽  
Seasonal Runoff

scholarly journals EVALUATION OF POSSIBLE CHANGES IN THE RIVER LINE OF THE OKA BASIN FOR THE COMING PERIOD OF THE FIRST HALF OF THE XXI CENTURY

2020 ◽  
Vol 1 (5) ◽  
pp. 71-75
Author(s):  
G. Kh. Ismaiylov ◽  
◽  
N.V. Muraschenkova ◽  
Keyword(s):  
River Basin ◽  
21St Century ◽  
River Runoff ◽  
River Flow ◽  
Climatic Conditions ◽  
Global Changes ◽  
The Future ◽  
Seasonal Runoff ◽  
The City

A retrospective analysis and assessment of long-term changes in the annual and seasonal runoff of the Oka River basin over a long 131-year observation period (1881 / 1882–2011/2012) was performed. The changes in the annual distribution of the Oka river runoff over the seasons of the year (spring flood, summer-autumn and winter low water) from its annual value for the selected time periods (before and after 1976/1977) are considered. It has been noted that over the past decades, river runoff has been formed in new climatic conditions associated with global changes and, as a result, regional climate. The assessment of possible changes in the annual and seasonal runoff of the Oka River basin (to the final alignment – the city of Kaluga, with a basin area of 54,900 km2 ) in the first half of the 21st century is carried out. In assessing changes in the river flow of the Oka basin for the future period, the method of trends (trends) is used, based on the identification of cycles in fluctuations in hydrological characteristics and unidirectional trends (trends) inherent in individual phases (ups and downs) of these cycles, as well as to the establishment of functional (correlation) relationships between environmental factors (climatic, anthropogenic) and the nature of the response (river flow). In this case, the trend model serves as an alternative to the homogeneity hypothesis of long-term fluctuations in river flow. The change in the future values of the river flow of the Oka basin was estimated using averaged data of 30-year periods of time characterized by relative stationarity of climatic and hydrological conditions. The dynamics of the average 30-year values of the annual runoff in the upper reaches of the Oka River (the closure target is the city of Kaluga for the period 1881/1882–2011/2012) is considered. Possible forecasted mean annual values of the annual flow of the Oka River for the first half of the 21st century are obtained

scholarly journals Long Term Runoff Analysis of the Lena River Basin using a Distributed Hydrological Model

2009 ◽  
Vol 22 (3) ◽  
pp. 177-187 ◽  
Author(s):  
Shigemi HATTA ◽  
Hiroshi HAYAKAWA ◽  
Hotaek PARK ◽  
Takeshi YAMAZAKI ◽  
Kazukiyo YAMAMOTO ◽  
...  
Keyword(s):  
River Basin ◽  
Hydrological Model ◽  
Distributed Hydrological Model ◽  
Lena River ◽  
Runoff Analysis

scholarly journals ANALYSIS OF LONG-TERM VARIABILITY OF RIVER RUNOFF IN THE URAL RIVER BASIN

2021 ◽  
Vol 5 (1(82)) ◽  
pp. 8-11
Author(s):  
N. Yumina ◽  
M. Kozlov
Keyword(s):  
Statistical Analysis ◽  
River Basin ◽  
Climatic Changes ◽  
Annual Runoff ◽  
Phase Fluctuations ◽  
Detailed Statistical Analysis ◽  
Seasonal Runoff ◽  
Term Data ◽  
Different Parts

The hydrological zoning of the Ural River basin has been clarified in terms of synchronism and in-phase fluctuations in annual runoff. 5 hydrological regions have been identified. For 9 hydrological posts and 5 meteorological stations located in different parts of the basin, a detailed statistical analysis of long-term data was carried out. A single 1975 year of the beginning of hydro-meteorological changes in the basin was revealed. For each hydrological region, statistically significant changes in the annual and seasonal runoff were revealed. The assessment of the factors of change in runoff was carried out. Areas with a predominant influence on the change in runoff or anthropogenic load on water resources or climatic changes are identified.

Socioeconomic Challenges faced by Basin’s People in India

Think India ◽  
2019 ◽  
Vol 22 (2) ◽  
pp. 296-304
Author(s):  
Biplab Tripathy ◽  
Tanmoy Mondal
Keyword(s):  
River Basin ◽  
High Tide ◽  
North East ◽  
The People ◽  
Term Basis ◽  
Major River ◽  
River Ganga ◽  
Basin Region ◽  
Basin Area

India is a subcontinent, there huge no of people lived in river basin area. In India there more or less 80% of people directly or indirectly depend on River. Ganga, Brahamputra in North and North East and Mahanadi, Govabori, Krishna, Kaveri, Narmoda, Tapti, Mahi in South are the major river basin in India. There each year due to flood and high tide lots of people are suffered in river basin region in India. These problems destroy the socio economic peace and hope of the people in river basin. There peoples are continuously suffered by lots of difficulties in sort or in long term basis. Few basin regions are always in high alert at the time of monsoon seasons. Sometime due to over migration from basin area, it becomes empty and creates an ultimate loss of resources in India and causes a dis-balance situation in this area.

scholarly journals Estimation of the residence time of permafrost groundwater in the middle of the Lena River basin, eastern Siberia

2013 ◽  
Vol 8 (3) ◽  
pp. 035040 ◽  
Author(s):  
Tetsuya Hiyama ◽  
Kazuyoshi Asai ◽  
Alexander B Kolesnikov ◽  
Leonid A Gagarin ◽  
Victor V Shepelev
Keyword(s):  
River Basin ◽  
Residence Time ◽  
Eastern Siberia ◽  
Lena River
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