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Dr. Vincent Ojeh
Taraba State University

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Research Keywords & Expertise

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0 urban heat island (UHI)
0 urban climatology
0 Micrometeorology
0 agroclimatology

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Short Biography

Dr. Vincent N. Ojeh received his B.Sc (Hons) and M.Sc degrees in Geography and Regional Planning from Delta State University, Abraka, Nigeria in 2004 and 2011 respectively with specialization in Climatology under the Federal and Delta State Government Scholarships. He holds the best graduating student award in geography in 2004. He proceeded in his career by bagging an internationally recognized PhD in Meteorology and Climate Science from the School of Earth and Mineral Sciences, Federal University of Technology, Akure (FUTA), Nigeria under Germany’s BMBF full fellowship. Dr. Ojeh serves as an expert reviewer and member of the editorial board of the International Journal of Climate Change Management across his field. He directs the Centre 4 Gender, Climate Education and Solutions, an advocacy NGO geared towards Climate Change Communication, training and Gender studies. He is one of the peer reviewer to the 6th Assessment Report of the Intergovernmental Panel on Climate Change (IPCC-AR6). A member of the African Group of Negotiators Expert Support (AGNES) headquartered in Nairobi, Kenya. The group is a continental think tank that provides technical support to the African Group of Negotiators (AGN) that advances common Africa position on climate change under the United Nations Framework Convention on Climate Change (UNFCCC). Dr Ojeh is a Research Fellow at the Africa Research and Impact Network (ARIN) and the current Alumni President of WASCAL in West Africa.

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Journal article
Published: 05 May 2021 in Journal of Geography, Environment and Earth Science International
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The human biometeorological conditions at mid-afternoon during 12 months of 2012 in the city of Minna North-Central Nigeria have been evaluated based on energy budget indices (UTCI and PET) using climate parameters -air temperature, relative humidity, wind speed and solar radiation) observed at 15:00LST as input into the Rayman model. Air temperature demonstrated strongest significant correlation coefficient (r) with UTCI and PET (r= 0.91, r= 0.93) (P<0.0001) while windspeed show weakest association with them(r=-0.10, r=-0.20) (P<0.03, P<0.001) respectively. March and August were characterized by peak and slightest monthly thermal stress conditions according to both indices. The correlation coefficient between both indices was significantly (P=32°C, PET>=35°C), which shows that both indices can be used indifferently in warm climates. However, during May to October, UTCI better expressed warm conditions than PET mainly due to the difference in the definition of reference environment for both indices; this study is relevant to the urban sightseeing industry as tourists would most likely opt for a period of lesser thermal discomfort.

ACS Style

Christian A. Njoku; Ikenna Orisakwe; Vincent N. Ojeh. Mid-afternoon Outdoor Biometeorological Conditions in a Hot-humid Climate of Minna in Nigeria, West Africa during the Year 2012. Journal of Geography, Environment and Earth Science International 2021, 52 -62.

AMA Style

Christian A. Njoku, Ikenna Orisakwe, Vincent N. Ojeh. Mid-afternoon Outdoor Biometeorological Conditions in a Hot-humid Climate of Minna in Nigeria, West Africa during the Year 2012. Journal of Geography, Environment and Earth Science International. 2021; ():52-62.

Chicago/Turabian Style

Christian A. Njoku; Ikenna Orisakwe; Vincent N. Ojeh. 2021. "Mid-afternoon Outdoor Biometeorological Conditions in a Hot-humid Climate of Minna in Nigeria, West Africa during the Year 2012." Journal of Geography, Environment and Earth Science International , no. : 52-62.

Review
Published: 14 January 2021 in Sustainability
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The Urban Heat Islands (UHI) effect is a microclimatic phenomenon that especially affects urban areas. It is associated with significant temperature increases in the local microclimate, and may amplify heat waves. Due to their intensity, UHI causes not only thermal discomfort, but also reductions in the levels of life quality. This paper reviews the important role of green infrastructure as a means through which the intensity of UHI may be reduced, along with their negative impact on human comfort and wellbeing. Apart from a comprehensive review of the available literature, the paper reports on an analysis of case studies in a set of 14 cities in 13 countries representing various geographical regions and climate zones. The results obtained suggest that whereas UHI is a common phenomenon, green infrastructure in urban areas may under some conditions ameliorate their impacts. In addition, the study revealed that the scope and impacts of UHI are not uniform: depending on peculiarities of urban morphologies, they pose different challenges linked to the microclimate peculiar to each city. The implications of this paper are threefold. Firstly, it reiterates the complex interrelations of UHIs, heat waves and climate change. Secondly, it outlines the fact that keeping and increasing urban green resources leads to additional various benefits that may directly or indirectly reduce the impacts of UHI. Finally, the paper reiterates the need for city planners to pay more attention to possible UHI effects when initiating new building projects or when adjusting current ones.

ACS Style

Walter Leal Filho; Franziska Wolf; Ricardo Castro-Díaz; Chunlan Li; Vincent Ojeh; Nestor Gutiérrez; Gustavo Nagy; Stevan Savić; Claudia Natenzon; Abul Quasem Al-Amin; Marija Maruna; Juliane Bönecke. Addressing the Urban Heat Islands Effect: A Cross-Country Assessment of the Role of Green Infrastructure. Sustainability 2021, 13, 753 .

AMA Style

Walter Leal Filho, Franziska Wolf, Ricardo Castro-Díaz, Chunlan Li, Vincent Ojeh, Nestor Gutiérrez, Gustavo Nagy, Stevan Savić, Claudia Natenzon, Abul Quasem Al-Amin, Marija Maruna, Juliane Bönecke. Addressing the Urban Heat Islands Effect: A Cross-Country Assessment of the Role of Green Infrastructure. Sustainability. 2021; 13 (2):753.

Chicago/Turabian Style

Walter Leal Filho; Franziska Wolf; Ricardo Castro-Díaz; Chunlan Li; Vincent Ojeh; Nestor Gutiérrez; Gustavo Nagy; Stevan Savić; Claudia Natenzon; Abul Quasem Al-Amin; Marija Maruna; Juliane Bönecke. 2021. "Addressing the Urban Heat Islands Effect: A Cross-Country Assessment of the Role of Green Infrastructure." Sustainability 13, no. 2: 753.

Journal article
Published: 01 February 2018 in Journal of Geography, Environment and Earth Science International
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ACS Style

G Afuye; V Ojeh; B Okunlola; V Adejokun. Heat-Sum Calculation in Forecasting Maize Phenological Stages and Harvesting Date in Lagos South West, Nigeria. Journal of Geography, Environment and Earth Science International 2018, 13, 1 -12.

AMA Style

G Afuye, V Ojeh, B Okunlola, V Adejokun. Heat-Sum Calculation in Forecasting Maize Phenological Stages and Harvesting Date in Lagos South West, Nigeria. Journal of Geography, Environment and Earth Science International. 2018; 13 (3):1-12.

Chicago/Turabian Style

G Afuye; V Ojeh; B Okunlola; V Adejokun. 2018. "Heat-Sum Calculation in Forecasting Maize Phenological Stages and Harvesting Date in Lagos South West, Nigeria." Journal of Geography, Environment and Earth Science International 13, no. 3: 1-12.

Journal article
Published: 24 January 2018 in Journal of Geography, Environment and Earth Science International
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ACS Style

E Oruonye; V Ojeh; Y Ahmed; D Mberinyang. A Survey of the Exploitation of Medicinal Plants: Gashaka-Gumti National Park, Taraba State in Perspective. Journal of Geography, Environment and Earth Science International 2018, 13, 1 -10.

AMA Style

E Oruonye, V Ojeh, Y Ahmed, D Mberinyang. A Survey of the Exploitation of Medicinal Plants: Gashaka-Gumti National Park, Taraba State in Perspective. Journal of Geography, Environment and Earth Science International. 2018; 13 (3):1-10.

Chicago/Turabian Style

E Oruonye; V Ojeh; Y Ahmed; D Mberinyang. 2018. "A Survey of the Exploitation of Medicinal Plants: Gashaka-Gumti National Park, Taraba State in Perspective." Journal of Geography, Environment and Earth Science International 13, no. 3: 1-10.

Journal article
Published: 29 October 2017 in SciFed Journal of Global Warming
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ACS Style

Vincent Ojeh. Rice Husk for the Removal of Heavy Metals from Polluted Soils at Agbogbloshie E-Waste Dump Site in Accra Ghana. SciFed Journal of Global Warming 2017, 1, 1 .

AMA Style

Vincent Ojeh. Rice Husk for the Removal of Heavy Metals from Polluted Soils at Agbogbloshie E-Waste Dump Site in Accra Ghana. SciFed Journal of Global Warming. 2017; 1 (1):1.

Chicago/Turabian Style

Vincent Ojeh. 2017. "Rice Husk for the Removal of Heavy Metals from Polluted Soils at Agbogbloshie E-Waste Dump Site in Accra Ghana." SciFed Journal of Global Warming 1, no. 1: 1.

Journal article
Published: 10 January 2017 in Physical Science International Journal
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ACS Style

G. A. Afuye; Vincent Ojeh. Temporal Variations in Ambient Carbon Monoxide Concentrations between Weekdays and Weekends in Akure Central Business District, South West Nigeria. Physical Science International Journal 2017, 16, 1 -12.

AMA Style

G. A. Afuye, Vincent Ojeh. Temporal Variations in Ambient Carbon Monoxide Concentrations between Weekdays and Weekends in Akure Central Business District, South West Nigeria. Physical Science International Journal. 2017; 16 (3):1-12.

Chicago/Turabian Style

G. A. Afuye; Vincent Ojeh. 2017. "Temporal Variations in Ambient Carbon Monoxide Concentrations between Weekdays and Weekends in Akure Central Business District, South West Nigeria." Physical Science International Journal 16, no. 3: 1-12.

Journal article
Published: 17 May 2016 in Climate
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In this study, the hourly air temperature differences between City hall (urban) and Okoafo (rural) in Lagos, Nigeria, were calculated using one year of meteorological observations, from June 2014 to May 2015. The two sites considered for this work were carefully selected to represent their climate zones. The city core, City hall, is within the Local Climate Zone (LCZ 2) (Compact midrise) while the rural location, Okoafo, falls within LCZ B (Scattered Trees) in the south-western part on the outskirt of the city. This study is one of very few to investigate urban temperature conditions in Lagos, the largest city in Africa and one of the most rapidly urbanizing megacities in the world; findings show that maximum nocturnal UHI magnitudes in Lagos can exceed 7 °C during the dry season, and during the rainy season, wet soils in the rural environment supersede regional wind speed as the dominant control over UHI magnitude.

ACS Style

Vincent N. Ojeh; A. A. Balogun; A. A. Okhimamhe. Urban-Rural Temperature Differences in Lagos. Climate 2016, 4, 29 .

AMA Style

Vincent N. Ojeh, A. A. Balogun, A. A. Okhimamhe. Urban-Rural Temperature Differences in Lagos. Climate. 2016; 4 (2):29.

Chicago/Turabian Style

Vincent N. Ojeh; A. A. Balogun; A. A. Okhimamhe. 2016. "Urban-Rural Temperature Differences in Lagos." Climate 4, no. 2: 29.

Book chapter
Published: 25 March 2016 in Climate Change Management
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The patterns of general circulation of the atmosphere which determines the characteristics of global and regional climate variations will be different from what it is currently. Current global warming may lead to significant change in global and regional climate related health challenges on humans. The main purpose of this work is to investigate the potential impact of climatic variations in relation to human health with Malaria in perspective. The climatic parameter that was used include the average temperature, rainfall amounts and health indexes of the study area. We investigated the factors responsible for increases or decreases in human’s health in relation to climate variations. Six years climate data and in and out patient malaria records from hospitals in Kosofe, Lagos were used and analyzed with linear regression analyses using the SPSS. The climate variables used in the bivariate correlation analyses include annual and seasonal totals and monthly rainfall in Nigeria. Preliminary result shows that there is a strong relationship between climate variation in rainfall and malaria disease in Nigeria with seasonal cycles.

ACS Style

Vincent Nduka Ojeh; Sheyi A. Aworinde. Climate Variation and Challenges of Human Health in Nigeria: Malaria in Perspective. Climate Change Management 2016, 171 -185.

AMA Style

Vincent Nduka Ojeh, Sheyi A. Aworinde. Climate Variation and Challenges of Human Health in Nigeria: Malaria in Perspective. Climate Change Management. 2016; ():171-185.

Chicago/Turabian Style

Vincent Nduka Ojeh; Sheyi A. Aworinde. 2016. "Climate Variation and Challenges of Human Health in Nigeria: Malaria in Perspective." Climate Change Management , no. : 171-185.

Journal article
Published: 01 January 2015 in Journal of Geographic Information System
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Increase in the frequency of flooding incidents all over the world and indeed in Nigeria is a major cause for concern. The purpose of this research work is to identify the factors that lead to flooding; and using Geographic Information Systems, map the flood prone areas in Surulere. The causal factors of flooding in Surulere, such as high rainfall intensity and duration, land use patterns, human actions, urbanization, soil impermeability to mention but a few were identified. The pattern of rainfall in Surulere was analysed using 20 years rainfall data from The Nigerian Meteorological Agency. The land use/land cover map as well as the DEM of Surulere was generated in the ArcGis environment with ikonos imagery and 1:50,000 toposheet of Lagos S.E which covers Surulere. The Flood prone areas in Surulere were then mapped. Results show that majority of the land area of Surulere is prone to flooding. Flood mitigation such as early warning systems and flood forecasting, proper urban development, awareness and research should be implemented by the Lagos State Government.

ACS Style

Chidinma Blessing Okoye; Vincent Nduka Ojeh. Mapping of Flood Prone Areas in Surulere, Lagos, Nigeria: A GIS Approach. Journal of Geographic Information System 2015, 07, 158 -176.

AMA Style

Chidinma Blessing Okoye, Vincent Nduka Ojeh. Mapping of Flood Prone Areas in Surulere, Lagos, Nigeria: A GIS Approach. Journal of Geographic Information System. 2015; 07 (02):158-176.

Chicago/Turabian Style

Chidinma Blessing Okoye; Vincent Nduka Ojeh. 2015. "Mapping of Flood Prone Areas in Surulere, Lagos, Nigeria: A GIS Approach." Journal of Geographic Information System 07, no. 02: 158-176.

Journal article
Published: 01 January 2014 in Journal of Earth Science & Climatic Change
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We examined the effects of flooding on crop yield in Oleh, South-South Nigeria. The length of the different farmlands were taken, the length of the flooded period, the percentage of total length and the depth of the flood water were all recorded and used for the study. The period of water retention on the farmlands was measured and the flood type categorized. The estimated yield and estimated loss from the farmlands for the two years (2011 and 2012) were recorded and analyzed. The study revealed that there was a high level of inundation in farmlands in Oleh soon after every rain event. A mean value of 0.608 kilometers of flooded portion was recorded at Odah in 2011, 0.441 kilometers at Iwhreotah in 2011, 0.547 kilometers at Erorin in 2011 and 0.485 kilometers at Odah in 2012, 0.425 kilometers at Iwhreotah in 2012 and 0.598 kilometers of flooded portion in 2012 at Erorin quarters were generally observed in the farm lands. The study revealed that all the crops cultivated in the area (cassava, melon, yam, maize, plantain) were affected by flooding above 50 percent of total yield of each crop cultivated in the area except yam (46.9%). We recommend that fast growing and quick yielding species of plants be introduced in the area as well as the ridge and furrow method of farming. The ridge will be used to plant the crops, while the furrow acts as a check to the excess water found on the farmland.

ACS Style

Vincent N Ojeh; Afokoghene F Victor-Orivoh. Natural Hazard and Crop Yield in Oleh, South-South Nigeria: Flooding in Perspective. Journal of Earth Science & Climatic Change 2014, 5, 1 .

AMA Style

Vincent N Ojeh, Afokoghene F Victor-Orivoh. Natural Hazard and Crop Yield in Oleh, South-South Nigeria: Flooding in Perspective. Journal of Earth Science & Climatic Change. 2014; 5 (2):1.

Chicago/Turabian Style

Vincent N Ojeh; Afokoghene F Victor-Orivoh. 2014. "Natural Hazard and Crop Yield in Oleh, South-South Nigeria: Flooding in Perspective." Journal of Earth Science & Climatic Change 5, no. 2: 1.

Journal article
Published: 31 July 2012 in Resources and Environment
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The impact of gas flaring on the sustainable development was examined. The presence crude oil and natural gas is expected to serve as socio-economic driver of accelerated sustainable development of an area but the situation of oil producing areas of Nigeria is a far cry from the expected. Data was collected from eight (8) experimental sites around the gas flaring station including Obiaruku (control site), which has no gas-flaring station. Temperature and concentrations of air quality indices were determined. The temperature and air quality measurements in Ebedei were made, at least, 50 meters away from the bund wall of the flare. The data were analysed using the Multiple Regression and bivariate correlation. Results revealed that there is a significant relationship between ambient temperature and the gases (CO, NO2, SO4 and CH4) flared in Ebedei at F value of 20.069 which is greater than the critical value of 9.12. An increase in flared gases results to a corresponding increase in temperature. Strong negative relationship exists between distance from the bund wall of the flare and temperature at r=0.855. Recommendations: (FEPA) should constantly monitor and evaluate the level of damages done by gas flaring to ensure compliance and sustainability of the environment.

ACS Style

Vincent Nduka Ojeh. Sustainable Development and Gas Flaring Activities: a Case Study of Ebedei Area of Ukwuani LGA, Delta State, Nigeria. Resources and Environment 2012, 2, 169 -174.

AMA Style

Vincent Nduka Ojeh. Sustainable Development and Gas Flaring Activities: a Case Study of Ebedei Area of Ukwuani LGA, Delta State, Nigeria. Resources and Environment. 2012; 2 (4):169-174.

Chicago/Turabian Style

Vincent Nduka Ojeh. 2012. "Sustainable Development and Gas Flaring Activities: a Case Study of Ebedei Area of Ukwuani LGA, Delta State, Nigeria." Resources and Environment 2, no. 4: 169-174.

Journal article
Published: 09 July 2012 in World Environment
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The paper examined Agriculture as an index of socio-economic development of DeltaState of Nigeria. Secondary data from the Delta State Household Surveyformed the core of the data used for the study. The stratified random sampling technique was used in administering 2024 questionnaires to respondents in DeltaState. Simple percentages, bar graphs and pie-chart were used for the data analysis. The results of the study showed that agricultural practices in Delta State is gender sensitive with more males than females participating in agricultural production. In addition, fish farming and livestock production are on the decline, while crop farming is the major interest of the farmers. The swampy areas of DeltaStateare grossly underutilized with respect to agricultural productivity, while irrigation farming should be encouraged. The government of DeltaState should also assist farmers by providing them with credit facilities especially in the rural area. Solutions to the identified problems were proffered.

ACS Style

Vincent Nduka Ojeh; Thaddeus Origho; Philip Henah John. Agriculture as an Index of Socio-Economic Development of Delta State of Nigeria. World Environment 2012, 2, 62 -68.

AMA Style

Vincent Nduka Ojeh, Thaddeus Origho, Philip Henah John. Agriculture as an Index of Socio-Economic Development of Delta State of Nigeria. World Environment. 2012; 2 (4):62-68.

Chicago/Turabian Style

Vincent Nduka Ojeh; Thaddeus Origho; Philip Henah John. 2012. "Agriculture as an Index of Socio-Economic Development of Delta State of Nigeria." World Environment 2, no. 4: 62-68.