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... The foremost role of a building is to assure the comfort of its occupants. The thermal comfort of a building depends on the outdoor climate and requires a demand in energy for heating and cooling. In this paper, demand of energy (heating/cooling) in the buildings is discussed in Douala, Cameroon. Daily data of the last 40 years coming from five weather stations of Cameroon have been studied. Some ...
planning; dry environmental conditions; watersheds; prioritization; rain intensity; texture; data collection; case studies; drainage; runoff; morphometry; Earth system science; water harvesting; soil water; decision support systems; digital elevation models; rivers; floods; geographic information systems; streams; soil erosion; India
Abstract:
... Watershed morphometric analysis is important for controlling floods and planning restoration actions. The present study is focused on the identification of suitable sites for locating water harvesting structures using morphometric analysis and multi-criteria based decision support system. The Hathmati watershed of river Hathmati at Idar taluka, Sabarkantha district, Gujarat is experiencing excessi ...
land use change; Earth system science; models; soil; normalized difference vegetation index; land cover; Landsat; remote sensing; case studies; Markov chain; prediction; forests; India
Abstract:
... In the Himalayan states of India, with increasing population and activities, large areas of forested land are being converted into other land-use features. There is a definite cause and effect relationship between changing practice for development and changes in land use. So, an estimation of land use dynamics and a futuristic trend pattern is essential. A combination of geospatial and statistical ...
groundwater extraction; electrical conductivity; irrigation water; water quality; Earth system science; irrigation; aquifers; watersheds; drinking water; case studies; groundwater; wells; water quantity; water table; India
Abstract:
... The WR-2 watershed is located in the Deccan trap basaltic terrain of Maharashtra State, India. The watershed area incorporates a rich orange orchard belt that requires a huge quantity of water for irrigation. This requirement is mostly met through groundwater, extracted from the shallow aquifers of the WR-2 watershed. However, over the years, excess withdrawal of groundwater from these aquifers ha ...
agricultural land; arid lands; case studies; climate change; desertification; drought; ecosystems; forests; humans; irrigated farming; land use; monitoring; remote sensing; soil water; stream channels; sustainable development; wastelands; water conservation; India
Abstract:
... The world’s drylands are subject to desertification as a result of extended droughts, climate change, and human activities. Development in drylands depends on addressing degradation of the ecosystem, mainstreaming sustainable natural resources management, and building upon the existing adaptive capacities of communities and institutions. In this regard, recent scientific results aimed to promote s ...
sediments; water conservation; subsidence; groundwater recharge; Earth system science; ponds; surveys; aquifers; power plants; case studies; groundwater; wells; Iran
Abstract:
... The artificial recharge is a technique of aquifer conservation for land subsidence. But in this article, the phenomenon of land subsidence and the resulting cracks and fissures at the study area are formed in recharge ponds. This is a new phenomenon and in this research the geometrical properties of the fissures of recharge ponds are measured. The results reveal the existence of fine layers in the ...
wetlands; carbon dioxide; oases; solar radiation; energy; Earth system science; absorption; microclimate; humidity; carbon; carbon sinks; friction; summer; wind speed; ecosystems; temperature; case studies; heat transfer; grasslands; China
Abstract:
... Xihu desert wetland is an important and unusual environment in China or even in the world. However, until now, little research has been focused on the microclimate and CO₂ flux characteristics in this area. This paper reports the characteristics of daily variations of microclimate and CO₂ flux in the Dunhuang Xihu desert wetland, based on data observed in the desert wetland during a period of cont ...
case studies; climate; climate change; correlation; hydrology; neural networks; prediction; rain; support vector machines; uncertainty; water management; Iran
Abstract:
... Many of the applied techniques in water resources management can be directly or indirectly influenced by hydro-climatology predictions. In recent decades, utilizing the large scale climate variables as predictors of hydrological phenomena and downscaling numerical weather ensemble forecasts has revolutionized the long-lead predictions. In this study, two types of rainfall prediction models are dev ...
Earth system science; data collection; models; andesite; basalt; case studies; permeability; prediction; Iran
Abstract:
... In the present study, a new model is proposed to predict the permeability per fracture in the fault zones by a new parameter named joint hydraulic factor (JH). JH is obtained from Water Pressure Test (WPT) and modified by the degree of fracturing. The results of JH correspond with quantitative fault zone descriptions, qualitative fracture, and fault rock properties. In this respect, a case study w ...
topography; Earth system science; models; least squares; geophysics; gravity; case studies; continental shelf; New Zealand
Abstract:
... We compare three different numerical schemes of treating the Moho density contrast in gravimetric inverse problems for finding the Moho depths. The results are validated using the global crustal model CRUST2.0, which is determined based purely on seismic data. Firstly, the gravimetric recovery of the Moho depths is realized by solving Moritz’s generalization of the Vening-Meinesz inverse problem o ...
quantitative analysis; Earth system science; springs (water); case studies; watersheds; porous media; rain; water; drainage; drying; permeability; prediction; India; Himalayan region
Abstract:
... The Greater Himalayan region is witnessing a changing rainfall pattern from the last few decades. Low-intensity longer-duration rainfall events have now been replaced with intense and shorter-duration events that are further responsible for the reduced recharging of the spring catchments. Consequently, the natural springs are either drying up or becoming seasonal. Prediction of spring water availa ...
desertification; risk; Earth system science; soil pH; models; geographic information systems; risk assessment; soil depth; deforestation; soil texture; mining; case studies; land degradation; urbanization; India
Abstract:
... Desertification risk assessment is important in order to take proper measures for its prevention. Present research intends to identify the areas under risk of desertification along with their severity in terms of degradation in natural parameters. An integrated model with fuzzy membership analysis, fuzzy rule-based inference system and geospatial techniques was adopted, including five specific nat ...
wind; sea level; Earth system science; knots; models; model validation; time series analysis; case studies; prediction; Antarctica; India; Antarctic region
Abstract:
... India Meteorological Department has implemented Polar WRF model for the Maitri (lat. 70°45′S, long. 11°44′E) region at the horizontal resolution of 15 km using initial and boundary conditions of the Global Forecast System (GFS T-382) operational at the India Meteorological Department (IMD). Main objective of this paper is to examine the performance skill of the model in the short-range time scale ...
roads; aerial photography; anthropogenic activities; remote sensing; towns; altitude; land use; urbanization; landslides; uncertainty; weathering; population density; drainage; hills; case studies; databases; cartography; Earth system science; soil; lowlands; subwatersheds; geographic information systems; streams; rain; India
Abstract:
... This paper reports the use of a GIS based Probabilistic Certainty Factor method to assess the geo-environmental factors that contribute to landslide susceptibility in Tevankarai Ar sub-watershed, Kodaikkanal. Landslide occurrences are a common phenomenon in the Tevankarai Ar sub-watershed, Kodaikkanal owing to rugged terrain at high altitude, high frequency of intense rainfall and rapidly expandin ...
sediments; risk; morphometry; subwatersheds; Earth system science; models; soil; risk assessment; rain; hydrology; case studies; climate; India
Abstract:
... Each geomorphic hazard involves a degree of risk which incorporates quantification of the probability that a hazard will be harmful. At present, the categorization of sub-watersheds into erosion risk is considered as the fundamental step to conserve the soil loss. Development of badlands over the laterites of Birbhum district is an indicative of excessive soil loss in the monsoonal wet-dry type of ...
monitoring; Earth system science; models; gravity; spectral analysis; case studies; algorithms; satellites; Turkey (country)
Abstract:
... As the number of Earth geopotential models (EGM) grows with the increasing number of data collected by dedicated satellite gravity missions, CHAMP, GRACE and GOCE, measuring the differences among the models and monitoring the improvements in gravity field recovery are required. This study assesses the performance of recent EGMs derived from CHAMP, GRACE, and other data in comparison to the earlier ...
sediments; silica; texture; Earth system science; roads; elemental composition; color; anthropogenic activities; case studies; India
Abstract:
... This paper provides first report of silica-rich anthropogenic spherules of varying colour, shape, size, surface texture and chemical composition found in road-deposited sediments (RDS) of Allahabad city, Uttar Pradesh, India. Morphological details and lithophile elemental composition of the silica-rich spherules are compared to microtektites and impact spherules from India to demonstrate their str ...
kriging; Earth system science; geostatistics; models; surveys; geographic information systems; land surveying; case studies
Abstract:
... Accuracies of Real-Time Kinematic Global Positioning (RTK-GPS) system and Total Station (TS) were investigated in GIS environment. In geostatistical evaluations, Kriging method was used with spherical, exponential, and Gaussian models. The survey results demonstrated that an area of 3.5Â ha or smaller can be best explained with Gaussian model, while the larger areas require a spherical model. A ve ...
correlation; linear models; rivers; Earth system science; equations; data collection; regression analysis; model validation; watersheds; time series analysis; rain; weather forecasting; case studies; prediction; India
Abstract:
... In this study, multi-linear regression (MLR) approach is used to construct intermittent reservoir daily inflow forecasting system. To illustrate the applicability and effect of using lumped and distributed input data in MLR approach, Koyna river watershed in Maharashtra, India is chosen as a case study. The results are also compared with autoregressive integrated moving average (ARIMA) models. MLR ...
atmospheric circulation; simulation models; wind; moderate resolution imaging spectroradiometer; Earth system science; monsoon season; aerosols; coasts; climate models; altitude; remote sensing; case studies; prediction; India; Arabian Sea
Abstract:
... The circulation dynamics of an event marked by the formation of an aerosol cluster off the coast of Maharashtra on April 22, 2006, its southward migration along the Indian west coast with a mean speed of ~200Â km/day and its final dissipation after reaching the end of the peninsula by April 28, 2006 as revealed by MODIS (Moderate Resolution Imaging Spectroradiometer) against the pre-monsoon condit ...