scholarly journals Changes and contemporary trends in the annual amounts of precipitation in Serbia

2021 ◽  
Vol 44 ◽  
pp. 73-79
Author(s):  
Hristo Popov ◽  
Jelena Svetozarevich
Keyword(s):  
Balkan Peninsula ◽  
Middle Part ◽  
River Valley ◽  
Annual Precipitation ◽  
Precipitation Data ◽  
Southeast Europe ◽  
The Republic ◽  
River Valleys ◽  
Annual Amount ◽  
The Sava River

The Republic of Serbia is а continental country located in the western part of the Balkan Peninsula, in Southeast Europe. In terms of physical characteristics, Serbia is divided into two parts: Pannonian part and mountainous part. The northern part of the country is located in the valley of the Middle Danube, the Sava River valley and the Tisza River valley. In the middle part of the country, the river valleys of the Drina, the Kolubara and the Morava are located. For the purposes of this research, the authors have used the annual precipitation data from 15 meteorological stations distributed throughout the Republic of Serbia. The data from these meteorological stations for the period between 1991 and 2019 has been provided by The Serbian Institute of Meteorology and Hydrology. This data has been used to calculate the annual amount of precipitation, and the trends in annual precipitation.

scholarly journals Local Resilience to Natural Hazards in Serbia. Case Study: The West Morava River Valley

2018 ◽  
Vol 10 (8) ◽  
pp. 2866 ◽  
Author(s):  
Tamara Lukić ◽  
Jelena Dunjić ◽  
Bojan Đerčan ◽  
Ivana Penjišević ◽  
Saša Milosavljević ◽  
...  
Keyword(s):  
Natural Disasters ◽  
Natural Hazards ◽  
Balkan Peninsula ◽  
River Valley ◽  
The West ◽  
Additional Information ◽  
Starting Point ◽  
Stratified Sample ◽  
The Republic ◽  
Morava River

During the past decade, the valley of the West Morava in the central part of the Republic of Serbia experienced several natural hazards that have changed the life of the inhabitants. The aim of this paper is to show how people perceive natural hazards in the areas where they do not have catastrophic consequences for the entire population. The perceptions of natural hazards were examined according to similar studies and collected through surveys and interviews. The obtained stratified sample information was coded, and the results are expressed in the parameters of descriptive statistics, using T-test and ANOVA. The population is partially affected if inhabited locations are in the threatened part of the West Morava River valley and if their activities have direct consequences by natural disasters. They emphasize the importance of the political influences and mass media, but they show the need for additional information on prevention and protection. That is where they see geography as profession that sublimates all knowledge of natural disasters, unlike others that are more narrowly skilled. The results of the research are the starting point for further regional comparisons, which will complement the picture of the people’s attitude and resilience to natural hazards in Serbia and the Balkan Peninsula.

scholarly journals The diversity of chosen grass communities in the middle part of the Wieprz river valley in the sustainable development of rural areas

2016 ◽  
Vol 71 (2) ◽  
pp. 31-40
Author(s):  
EWA STAMIROWSKA-KRZACZEK ◽  
HALINA LIPIŃSKA ◽  
RAFAŁ KORNAS ◽  
MARIANNA WARDA ◽  
PAWEŁ KRZACZEK
Keyword(s):  
Sustainable Development ◽  
Rural Areas ◽  
Middle Part ◽  
River Valley ◽  
Floristic Diversity ◽  
Sustainable Rural Development ◽  
The Sustainable Development ◽  
Grass Communities ◽  
The Moment ◽  
River Valleys

Sustainable rural development is identified mainly by means of ecological solutions. At the moment, more and more attention is given to natural and sightseeing values of our environment, and hence, to biodiversity. The aim of the research conducted in the years 2005-2008 was to assess the floristic diversity of grass communities in the middle part of the Wieprz river valley (Lublin region) depending on the habitat and ways of use. The moisture of habitat and the use of sward influence the formation of grass communities Molinio-Arrhenatheretea and Phragmitetea classes, which were characterized by average floristic diversity and the presence of endangered and protected species. Grass communities in river valleys require preservation and protection not only for economic reasons but also because of the floristic diversity and ecological environmental functions, and thus for the sustainable development of rural areas.

Tenderfoot Creek Experimental Forest Annual Precipitation Data: 1993-2010

2011 ◽  
Author(s):  
David K. Wright ◽  
Lance S. Glasgow ◽  
Ward W. McCaughey ◽  
Elaine K. Sutherland
Keyword(s):  
Annual Precipitation ◽  
Precipitation Data

Aphyllophoroid fungi (Basidiomycota) in forests of the middle part of Luga River valley, Leningrad Oblast, Russia

Karstenia ◽  
2017 ◽  
Vol 57 (1-2) ◽  
pp. 37-47
Author(s):  
Sergey Volobuev ◽  
Alexandra Arzhenenko
Keyword(s):  
Middle Part ◽  
River Valley ◽  
Leningrad Oblast ◽  
Aphyllophoroid Fungi

Vegetation of sandy coasts of Lake Baikal

2016 ◽  
pp. 46-66
Author(s):  
Тю Фю Dulepova
Keyword(s):  
Lake Baikal ◽  
Lake Basin ◽  
Floristic Diversity ◽  
Southern Siberia ◽  
Irkutsk Region ◽  
Relief Formation ◽  
The Republic ◽  
River Valleys ◽  
High Degree ◽  
Semiarid Conditions

The aeolian processes play an important role in the relief formation under the semiarid conditions of the intermountain basins of Southern Siberia. Ancient sand landforms occur in different regions of Siberia — the Ob, Chuya, Аley, Yenisei, Аngara, Selenga, Chikoy, Khilok and Chara river valleys and Lake Baikal coasts. The sandy coasts of Lake Baikal are of great interest in terms of floristic diversity determined by a high degree of endemism. Despite centuries of study of the lake basin, sand vegetation is poorly described in the literature. This study presents an analysis of 184 relevés of psammophytic vegetation from the Republic of Buryatia (Severobaikalsky, Barguzinsky, Pribaikalsky districts) and Irkutsk region (Olkhon Island) obtained in 2009–2014.

Preliminary geologic map of the middle part of the Eagle River valley, Municipality of Anchorage, Alaska

1980 ◽  
Author(s):  
Henry R. Schmoll ◽  
Ernest Dobrovolny ◽  
Cynthia A. Gardner
Keyword(s):  
Middle Part ◽  
River Valley ◽  
Geologic Map

scholarly journals A Stepwise GIS Approach for the Delineation of River Valley Bottom within Drainage Basins Using a Cost Distance Accumulation Analysis

Water ◽  
2021 ◽  
Vol 13 (6) ◽  
pp. 827
Author(s):  
Gasper L. Sechu ◽  
Bertel Nilsson ◽  
Bo V. Iversen ◽  
Mette B. Greve ◽  
Christen D. Børgesen ◽  
...  
Keyword(s):  
Spatial Data ◽  
Nutrient Loading ◽  
Drainage Basin ◽  
River Valley ◽  
Management Tool ◽  
Drainage Basins ◽  
Valley Bottom ◽  
Management Actions ◽  
Cost Distance ◽  
River Valleys

River valley bottoms have hydrological, geomorphological, and ecological importance and are buffers for protecting the river from upland nutrient loading coming from agriculture and other sources. They are relatively flat, low-lying areas of the terrain that are adjacent to the river and bound by increasing slopes at the transition to the uplands. These areas have under natural conditions, a groundwater table close to the soil surface. The objective of this paper is to present a stepwise GIS approach for the delineation of river valley bottom within drainage basins and use it to perform a national delineation. We developed a tool that applies a concept called cost distance accumulation with spatial data inputs consisting a river network and slope derived from a digital elevation model. We then used wetlands adjacent to rivers as a guide finding the river valley bottom boundary from the cost distance accumulation. We present results from our tool for the whole country of Denmark carrying out a validation within three selected areas. The results reveal that the tool visually performs well and delineates both confined and unconfined river valleys within the same drainage basin. We use the most common forms of wetlands (meadow and marsh) in Denmark’s river valleys known as Groundwater Dependent Ecosystems (GDE) to validate our river valley bottom delineated areas. Our delineation picks about half to two-thirds of these GDE. However, we expected this since farmers have reclaimed Denmark’s low-lying areas during the last 200 years before the first map of GDE was created. Our tool can be used as a management tool, since it can delineate an area that has been the focus of management actions to protect waterways from upland nutrient pollution.

scholarly journals MLE-Based Parameter Estimation for Four-Parameter Exponential Gamma Distribution and Asymptotic Variance of Its Quantiles

Water ◽  
2021 ◽  
Vol 13 (15) ◽  
pp. 2092
Author(s):  
Songbai Song ◽  
Yan Kang ◽  
Xiaoyan Song ◽  
Vijay P. Singh
Keyword(s):  
Parameter Estimation ◽  
Confidence Intervals ◽  
Asymptotic Variance ◽  
Information Matrix ◽  
Estimation Method ◽  
Flood Frequency Analysis ◽  
Annual Precipitation ◽  
Precipitation Data ◽  
Marquardt Algorithm ◽  
Design Values

The choice of a probability distribution function and confidence interval of estimated design values have long been of interest in flood frequency analysis. Although the four-parameter exponential gamma (FPEG) distribution has been developed for application in hydrology, its maximum likelihood estimation (MLE)-based parameter estimation method and asymptotic variance of its quantiles have not been well documented. In this study, the MLE method was used to estimate the parameters and confidence intervals of quantiles of the FPEG distribution. This method entails parameter estimation and asymptotic variances of quantile estimators. The parameter estimation consisted of a set of four equations which, after algebraic simplification, were solved using a three dimensional Levenberg-Marquardt algorithm. Based on sample information matrix and Fisher’s expected information matrix, derivatives of the design quantile with respect to the parameters were derived. The method of estimation was applied to annual precipitation data from the Weihe watershed, China and confidence intervals for quantiles were determined. Results showed that the FPEG was a good candidate to model annual precipitation data and can provide guidance for estimating design values

Determining the best fitting distribution of annual precipitation data in Serbia using L-moments method

2020 ◽  
Author(s):  
Milan Gocic ◽  
Lazar Velimirovic ◽  
Miomir Stankovic ◽  
Slavisa Trajkovic
Keyword(s):  
Annual Precipitation ◽  
Precipitation Data ◽  
Moments Method ◽  
Best Fitting ◽  
L Moments

scholarly journals Temporal and spatial variation of NPP and its response to climatic factors in main river valleys on the southern slope of Qilian Mountains

2019 ◽  
Vol 131 ◽  
pp. 01044
Author(s):  
Rong-rong Yang ◽  
Guang-chao Cao ◽  
Sheng-kui Cao ◽  
Yao Lan ◽  
Zhuo Zhang ◽  
...  
Keyword(s):  
Spatial Distribution ◽  
Climatic Factors ◽  
Growing Season ◽  
Qilian Mountains ◽  
River Valley ◽  
Distribution Characteristics ◽  
Southern Slope ◽  
Qilian Mountain ◽  
Main River ◽  
River Valleys

Based on the NPP products of MODIS data, the spatial and temporal distribution characteristics of grassland NPP and its response to climatic factors in the vegetation growing season of the main river valleys in the southern slope of Qilian Mountains from 2000 to 2016 were carried out by correlation analysis and spatial interpolation. The research further provides a scientific basis for the quality evaluation of grassland ecosystems on the southern slope of Qilian Mountain and the rational use of grassland resources along the river. The results show that: (1) With the increasing distance of buffers on both sides of the river, the NPP of grassland in each year shows the characteristics of “single-peak” distribution, which is increased first and then decreased; (2) the NPP of grassland in the main river valley of the southern slope of Qilian Mountain The spatial distribution characteristics show a trend of increasing from northwest to southeast. (3) The spatial distribution of NPP and air temperature in the main river valleys of the southern slope of Qilian Mountains is gradually increasing from northwest to southeast, but the spatial distribution correlation coefficient of NPP and precipitation in the river valley grassland of vegetation growing season basically shows a trendof decreasing from northwest to southeast.

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