Global Journal Of Geological Sciences

 Journal

 Deformation And Lineament Studies Of Rocks In Omifunfun Area, Southwestern Nigeria: Remote Sensing And Petrographic Observations.

 Anifowose, A.Y.B. And Adetunji, A.

 2015

 

 GEO OBSERVATEUR, No 22, Journal Of Moroccan Centre For Remote Sensing

 Journal

 Evaluation Of Groundwater Potential Of A Basement Complex Environment Using Geoinformation Technology (A Framework For Water Development In Developing Countries).

 A.Y.B. Anifowose, O.O. Aladejana And O.A. Aboyeji

 2015

 

 IOSR Journals, India

 Journal

 An Assessment Of The Relationship Between Lineaments And Groundwater Productivity In A Part Of The Basement Complex Of Southwestern Nigeria.

 Yenne, E.Y., Anifowose, A.Y.B., Dibal, H.U., And Nimchak, R.N.

 2015

IOSR Journal of Environmental Science, Toxicology and Food Technology, 9(6), pp. 23-35. e-ISSN: 2319-2402, p-ISSN: 2319-2399. 

 

 Morrocan Remote Sensing Centre, Rabat, Morocco

 Journal

 Evaluation Of Groundwater Potential Of A Basement Complex Environment Using Geoinformation Technology (A Framework For Water Development In Developing Countries).

 Anifowose, A.Y.B., Aladejana, O.O. And Aboyeji, O.S.

 2015

GEO OBSERVATEUR, No 22, pp. 17-28.

 

 International Geoinformatics Research And Development Journal

 Journal

 Hydrodynamics Of Abeokuta, Southwestern Nigeria.

 Egbeyemi, O.R., Anifowose, A.Y.B. And Oni, A.T.

 2015

International Geoinformatics Research and Development Journal, 6(4), pp. 14-21.

 

 SCIRP

 Journal

 Spatial Hydrogeochemical Characterization Of Groundwater In Basement Complex Of Southwestern Nigeria.

 Adewumi, A.J. And Anifowose, A.Y.B.

 2015

Spatial and hydrogeochemical characterization of groundwater in Owo area located within the Basement Complex area, Southwestern Nigeria have been carried out. Physicochemical analysis of thirty-five (35) samples (28 shallow wells and 7 boreholes) was carried out. The results of the chemical and spatial analysis reveal that pH in groundwater in the study area ranges between 4.80 and 5.60. SO42- ranges from 1,304.46 to 1,431.45 mg/l, which is mostly released during weathering of the bedrock in the study area. HCO3 value is between 8.00 and 20.00 mg/l. The analysis shows that the groundwater is good for drinking purposes as the values are below the acceptable standard of the World’s Health Organization (WHO). The study further reveals that rock weathering is the major process that leads to accumulation of ions in groundwater of the study area. Silicate weathering is a common phenomenon in groundwater of the area, where 91% attributed to the process and indicates precipitation induced chemical weathering. The plot of Na+ versus Cl- and Na and Ca reveals the absence of halite dissolution. The suitability of groundwater in the study area for irrigation purpose was also determined. Salinity hazard factors such as Sodium Adsorption Ratio (SAR), Soluble Sodium Percentage (SSP), bicarbonate hazard expressed in terms of Residual Sodium Carbonate (RSC), Magnesium Adsorption Ratio (MAR), Permeability Index (PI), Kelley’s Ratio (KR), Chloro-Alkaline Indices (CAI) were calculated using standard equations. The results of the analysis shows that groundwater in the study area is excellent for irrigation purposes. Correlation analysis of the hydrogeochemical data reveals that positive and strong correlation exists between SO4 and Cl, HCO3 , Na, K, Mg and Mn. Factor analysis classified the data into four groups which influences the quality of groundwater in the area. Component 1 which have the highest influence comprises of Cl, Na, Ca, K, Mg, pH, TDS, temperature and electrical conductivity account for 37.21% of the total variance. Hierarchical cluster analysis grouped the groundwater based on similarity into three groups. In group 1, similarities exist between ITP1, ITP2 , OW2, US1, US4, AMU, US2, EM1, AL2, AL3, EM3 and OB3. In group 2, similarities exist between OW1, OW7, IP1, IP3, OW3, OW10, EM2, OW5, IP2 and OB2. In the third group, similarities exist between OB1, OW5, US3, OW11, OGB1, OGB6 and OW 6, OW4, OW12, OGB2, AL1, OW9, OGB3 

 SPIE Earth Resources And Environmental Remote Sensing/GIS Applications

 Conference

 Developing A Sustainable Satellite-based Environmental Monitoring System In Nigeria.

 Akinyede, J.O., Adepoju, K.A., Akinluyi, F.O. And Anifowose, A.Y.B.

 2015

Increased anthropogenic activities over the year have remained a major factor of the Earth changing environment. This phenomenon has given rise to a number of environmental degraded sites that characterize the Nigeria's landscape. The human-induced elements include gully erosion, mangrove ecosystems degradation, desertification and deforestation, particularly in the south east, Niger Delta, north east and south west of Nigeria respectively, as well as river flooding/flood plain inundation and land degradation around Kainji lake area. Because of little or no effective management measures, the attendant environmental hazards have been extremely damaging to the infrastructures and socio-economic development of the affected area. Hence, a concerted effort, through integrated and space-based research, is being intensified to manage and monitor the environment in order to restore the stability, goods and services of the environment. This has justified Nigeria's investment in its space programme, especially the launch of NigeriaSat-1, an Earth observation micro-satellite in constellation with five (5) other similar satellites, Alsat-1, China DMC, Bilsat-1, DEMOS and UK DMC belonging to Algeria, China, Turkey, Spain and United Kingdom respectively. The use of data from these satellites, particularly NigeriaSat-1, in conjunction with associated technologies has proved to be very useful in understanding the influence of both natural and human activities on the Nigeria's ecosystems and environment. The results of some researches on specific applications of Nigerian satellites are presented in this paper. Appropriate sustainable land and water resources management in the affected areas, based on Nigeria?s satellite data capture and integration, are also discussed. 

 African Journal Of Environmental Science And Technology

 Journal

 Assessment Of Environmental Responses To Land Use/Land Cover Dynamics In The Lower Ogun River Basin, Southwestern Nigeria.

 Awoniran, D.R., Adewole, B.M., Adegboyega, S.A. And Anifowose, A.Y.B.

 2014

This study investigates the pattern of land use/land cover change in the Lower Ogun River Basinbetween 1984 and 2012. Two sets of topographical maps, a Landsat-5 TM image of 1984, Landsat-7ETM+ of 2000 and a Google Earth image of 2012 were used for the study. The topographical maps andsatellite images were digitally processed using ILWIS 3.2™ software and exported to ArcGIS 9.3™ forfurther processing and analysis. The processed images were subsequently classified using themaximum likelihood classification algorithm, resulting in the identification of seven land use classes.Furthermore, change detection analysis was carried out using Cross Module in ILWIS™. The result ofthe change detection analysis indicated that between 1984 and 2000, 80.08% of the land cover in thestudy area has been converted to other land uses while only 19.92% remained unchanged. Also, withinthe same period, light forests, non-forested wetlands and forested wetlands decreased at averageannual rates of 8.26, 4.66 and 2.81%, respectively, while water bodies also decreased at an annual rateof 0.17%. On the other hand, farmland, shrubs and urban/built-up areas expanded at average annualrates of 7.23, 6.74 and 4.65%, respectively. The result further indicates that between 2000 and 2012,49.86% of the land cover has been converted to other land uses, while 50.14% remained unchanged, andthat farmlands, shrubs, urban/built-up areas and forested wetlands expanded at average annual rates of6.01, 1.95, 0.89 and 0.17%, respectively, just as light forests, non-forested wetlands and water bodiesdecreased annually by 8.26, 2.70 and 1.40%, respectively. Five randomly collected soil samples wereanalyzed for their physicochemical properties. Findings show the growing impact of urban agricultureon wetland ecosystem within the study area, manifesting in soil degradation and biodiversity loss. Theimplication of these findings is that the area is susceptible to devastating flooding which can culminatein the loss of lives and properties. This study recommends the development of effective landmanagement information system and policies that will ensure sustainable management of fragileecosystem.

 

 Geoheritage

 Journal

 Appraisal Of The Geotourism Potentials Of The Idanre Hills, Nigeria.

 Anifowose, A.Y.B. And Kolawole, F.

 2014

The Idanre Hills comprise many elongate, steep sided, and dome-shaped porphyritic granite inselbergs with an average elevation of about 3,000m asl. The area is part of the many batholiths and stocks which intruded preexisting metasediments during the Pan African Orogeny (550±50 Ma). Apart from the existence of massive rock outcropsfield studies indicate the occurrence of minor intrusions and fractures on both mega- and mesoscales. The district has been regarded as attractive to tourists more for the Orosun festival celebrated as part of the residents’ heritage than for the geology and landscape. The former is the reason for efforts at listing the Idanre Hills among UNESCO’s World Heritage Sites. In the rich tourist potential of the hills, 16 geoheritage sites were listed and evaluated based on previously studied sites of geological and geomorphological value. The assessment showed only 10 of them to be of significant geotouristic value representing 8 out of 15 thematic groups. These identfied geosites and geomorphosites have been described in this paper. Infrastructural facilities such as a balustraded stairway, rest points, pipe-borne water, and chalets had earlier beeprovided to attract tourists to some parts of the hilltops. Nevertheless, the development and effective management of the Idanre Hills’ geologic landmarks as tourism and educational resource have the ability to improve the local economy through job creation and revenue generation, as well as attracmore local and, especially, international tourists to the site.

 

 American Journal Of Environmental Sciences

 Journal

 Air Pollution And Climate Change In Lagos, Nigeria: Needs For Proactive Approaches To Risk Management And Adaptation.

 Komolafe, A.A., Adegboyega, S.A., Anifowose, A.Y.B., Akinluyi, F.O. And Awoniran, D.R.

 2014

The significance of air pollution as one of the contemporary issues and accelerating factors that propelclimate change in both developed and developing countries cannot be overemphasized. The problem ofair pollution has seemingly become intractable with the incessant failure of both global and localenvironmental policies purportedly emplaced to address its devastating trend, particularly in growingmegacities of the world. The devastating effects of the phenomenon are more pronounced in megacitiesof developing countries than in developed ones. Lagos, as an industrialized, commercialized and anemerging megacity in Nigeria, has been subjected to several predictions of the negative impacts ofchanging climatic conditions partly caused by ubiquitous air pollution. Efforts at stemming the tide of theincreasing challenges of air pollution worldwide has significantly been thwarted by inadequate funding,hence the need to review the literature on the environmental implications of growing air pollution, itscontributions to climate change and its negative impacts on the lives and properties of teeminginhabitants of Lagos. A review like this will provide a synthesis of knowledge and information onmitigative and adaptive measures that can be adopted to minimize the impacts of air pollution on themega city.This study utilizes consciously selected and current literatures on the subject matter and foundthat Lagos inhabitants have been vulnerable to virtually all forms of damaging effects of climate changemajorly propelled by seemingly uncontrollable air pollution. This implies that the situation requiresproactive measures, otherwise, avoidable loss of lives and large scale destruction of properties may beinevitable. The paper therefore advocates involvement of all stakeholders in both mitigation andadaptation measures to climate change through enhancement of indigenous knowledge and creation ofawareness among citizens about the need to be conscious of their carbon foot prints.