Modeling Earth Systems and Environment

https://link.springer.com/journal/40808

List of Papers (Total 268)

Deciphering the groundwater–saline water interaction in a complex coastal aquifer in South India using statistical and hydrochemical mixing models

Hydrogeochemical investigations were carried out in a coastal aquifer along the East coast of Cuddalore district in Tamil Nadu, Southern India, to analyse the groundwater–seawater interactions. Multiple techniques including Hydrochemical Facies Evaluation Diagram (HFE-D), principle component analysis (PCA), ionic ratios, hydrochemical ionic changes models and salinity mixing...

Variation in diurnal and seasonal urban land surface temperature: landuse change impacts assessment over Lagos metropolitan city

Removal of vegetation to give space for urban expansion might result in the temperature rise in cities. The present study compares the LSTs derived from Moderate Resolution Imaging Spectroradiometer (MODIS) with observed air temperature from ground weather data. The natures of the materials that are usually found in the urban area are typically concrete and asphalt materials...

Change in glaciers length in the Indian Himalaya: an observation and prediction under warming scenario

This study is to evaluate the state of snow and ice in Himalayan region. De-glaciation processes are enhanced by increase in the atmospheric temperature. Snow and glaciers are continuously experiencing negative mass balances across Himalayan arc. The retreat is most significant for the small and low altitude glaciers. Till 2000 the cumulative length of the glaciers in Himalaya...

Hydrological and vegetation response to climate change in a forested mountainous catchment

Vegetal cover and the water cycle are closely linked. The climate controls the distribution and productivity of terrestrial vegetation, and the vegetal cover type is a key determinant for evapotranspiration and global runoff. In this study, a dynamic vegetation model (LPJ) has been coupled with a 3D hydrogeological model (MODFLOW) to estimate, for the first time, the impact of...

Adsorptive modelling of toxic cations and ionic dyes onto cellulosic extract

This work reports the abstractive potential of Parkia Biglobosa seed waste (PSW) and Parkia Biglobosa cellulosic extract (PBCE) for the removal of Cr(VI), Pb(II), methylene blue (MB) and congo red (CR) from aqua system. Physicochemical analyses carried out for these biomaterials were proximate analysis, Fourier transform infra red (FTIR) Spectrophotometry and scanning electron...

Uncertainty in landslide occurrence prediction using Dempster–Shafer theory

Landslide as one of the natural hazards has always caused huge financial losses and fatalities. Hence the goal of the present article is improvement in the prediction results of landslide occurrence in Tutkabon region in Gilan Province (Iran). For this purpose the Dempster–Shafer theory of evidence together with analyses and techniques of geospatial information systems (GIS) have...

Basin modeling analysis and organic maturation for selected wells from different oil fields, Southern Iraq

One dimension petroleum system modeling was performed on selected wells located within four oil fields in Southern Iraq, these are: Rumila, Subba, Tuba and Ratawi. The geo history analysis was applied for the studied fields; and it shows that the stratigraphic section contains many periods which are different in the tectonic and sedimentary subsidence, burial history, sedimentary...

Trend analysis of sediment flux time series from tropical river basins in India using non-parametric tests and multiscale decomposition

This paper first analyzed the trend of annual sediment flux time series from seven major basin outlet stations in India using the non-parametric Mann–Kendall (MK) method. Then the non-linear trends in these series were extracted using the empirical mode decomposition (EMD) method. Similar procedure is followed upon annual rainfall of the basin and a comparison of trend is made...

Monitoring forest dynamics and landslide susceptibility in Mechi–Balason interfluves of Darjiling Himalaya, West Bengal using forest canopy density model (FCDM) and Landslide Susceptibility Index model (LSIM)

Mapping and monitoring of forest extent is a common requirement of regional forest inventories and public land natural resource management in India. The present study involves the assessment of forest dynamicity using forest canopy density model and the preparation of Landslide Susceptibility Index map using Landslide Susceptibility Index model in Mechi–Balason interfluves of...

Effects of intraspecific competition of prey in the dynamics of a food chain model

In this paper, dynamical behavior of simple prey-predator model with Holling type II functional response involving additional food for predator along with intraspecific competition of prey is proposed and analyzed. The stability criteria of solutions are investigated by varying quantity and quality of additional food and intraspecific competition of prey population. Conditions...

A simple model for rapid gypsum determination in arid soils

The development of a reliable, fast and inexpensive method to determine the gypsum content in soils to understand their behavior is crucial. However, current methods of determination are cumbersome, lengthy and imprecise. This study was conducted to develop a rapid and simple method to determine soil gypsum content. A gypsum content of 120 soil samples was determined by three...

Drilling fluid loss control via implementing the FMI and DSI logs to protect environment

Implementing the drilling fluids in drilling operations is of paramount importance owing to the variety of applications and benefits they provide. Materials added to drilling fluid could cause numerous environmental problems in soil and water resources, and these problems are more pronounced in offshore as compared to land fields. Heavy metals such as mercury, barium, arsenic...

Hydraulic flood routing in an ephemeral channel: Wadi Mekerra, Algeria

Wadis are a vital source of water in most arid and semi-arid countries. Catastrophic flash floods occurring in wadis are a threat to many societies. The Wadi Mekerra basin in the North-West of Algeria represents one of these semi-arid regions the most affected by floods and has been always one of the main concerns of managers in Sidi Bel Abbes province. In this work, we present...

Characteristic changes in aerosol and meteorological parameters associated with dust event of 9 March 2013

Dust storms are very common in China during spring (March–May) season. On 8–9 March 2013, an intense dust storm occurred, which affected north-eastern parts of China including capital city Beijing. Satellite data are very important in tracking dust events; satellite and ground observations provide very important information about the transport of dust, their optical, atmospheric...

Modelling and analysis of the effects of aerosols in making artificial rain

To overcome the water crisis for irrigation and other purposes, in this paper, we propose a non-linear mathematical model for artificial rain making by considering five dependent variables namely, water vapor density, densities of cloud droplets of small and large sizes, density of rain drops and cumulative concentration of mixture of aerosols of different sizes. It is assumed...

Modelling impacts of chemical fertilizer on agricultural production: a case study on Hooghly district, West Bengal, India

In the context of changing farming practices, particularly with increasing use of chemical fertilizers, the present paper attempts to statistically model the implications of such input intensification for growth of agricultural production and yield and crop diversification in Hooghly district of the Indian state of West Bengal. Understanding the issue is very important for...

Modeling and analysis of the symptomatic and asymptomatic infections of swine flu with optimal control

Swine flu is an infectious disease which spreads very rapidly in the population. Infected droplets are expelled into the air by swine flu infected individuals through coughing and sneezing. This disease is transmitted to susceptible individuals by inhalation or ingestion of these infected droplets containing virus. In this paper, we propose and analyze a mathematical model for...

Spatio-temporal analysis of land use/land cover pattern changes in Arasbaran Biosphere Reserve: Iran

Main global environment and ecological functions and structure affected by land use/cover changes (LUCC). Analysis of the dynamic LUCC can be very useful in biosphere reserves (BRs) management. The Land use and cover (LULC) spatio-temporal changes in the Arasbaran BR were classified (as Agricultural, Forest and Barren/Range lands), and compared with future spatial pattern...

Complex dynamics and its stabilization in an eco-epidemiological model with alternative food

The present paper deals with a predator–prey system with disease in the predator population and we have also studied the effect of alternative food on the system dynamics. We have analyzed the local stability of the biological feasible equilibria and introduced the concept of the ecological and the disease basic reproduction numbers. We have observed the community structure of...

Testing the ability of an empirical hydrological model to verify a knowledge-based groundwater potential zone mapping methodology

Groundwater potential characterization is a major component of the developmental strategies required for sustainable management of the water resources of a country. This study explores the potential of Natural Resources Conservation Service (NRCS-CN) estimated runoff/infiltration to verify a knowledge-based groundwater potential zone mapping methodology using remote sensing and...

2D Geo-electrical imaging for shallow depth investigation in Doon Valley Sub-Himalaya, Uttarakhand, India

A 2D geo-electric profiling was executed close to Rajpur area in Doon Valley Sub-Himalaya, Dehradun, Uttarakhand. Profiling was executed at the site Civil Services Institute (CSI) close to Morvian Institute, Rajpur Road in Dehradun for possible shallow subsurface groundwater aquifer. Two resistivity and IP profiles were carried out to discover the conceivable groundwater zones in...

Spatial evaluation of appropriate areas to collect runoff using Analytic Hierarchy Process (AHP) and Geographical Information System (GIS) (case study: the catchment “Kasef” in Bardaskan

Collecting runoff is used to minimize losses and strengthening water reserves (water resources) in the system of catchments. Identifying suitable locations to collect runoff is an important step towards maximizing water availability and optimal utilization of agricultural land in semi-arid areas. Collecting rainwater and runoff is of measures that can be effective in proper...

Influence of water level fluctuation on groundwater solute content in a tropical south Indian region: a geochemical modelling approach

Groundwater levels in the Dharapuram region exhibited drastic seasonal changes. Hydrogeochemical analysis were performed on the groundwater samples collected during January (post-monsoon) and July (pre-monsoon) in 2009 to understand the chemical changes and related process encountered during the fluctuated water table. Dominant water type in the study area was Na–Cl with smaller...

Analysis of deforestation patterns and drivers in Swaziland using efficient Bayesian multivariate classifiers

Deforestation is a global phenomenon that threatens not only biodiversity but also the livelihoods of people who depend on them. Recent global analyses indicates that this problem is growing, hence the growing need to identify the underlying drivers in order to develop more responsive policies. We present a machine learning-based method which automatically identifies key drivers...

Spatial variation modelling of groundwater electrical conductivity using geostatistics and GIS

Optimized management of water resources, conservation and their quality increase is needful with data existence in basis of situation, amount and distribution of water chemical factors for example; electrical conductivity (EC) in determined geographical region. Accuracy of interpolation appropriate methods and variation map preparation of groundwater quality variables is...