Browsing by Author "Babalola, A"
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Item ASSESSMENT OF VEGETATION DYNAMICS AND FOREST LOSS USING GOOGLE EARTH ENGINE AND MULTI-TEMPORAL SENTINEL-2 IMAGERY(Faculty of Agriculture, University of Nigeria, Nsuka, 2022-04) Omar, D.; Idrees, M; Ahmadu, H.; Yusuf, A; Ipadeola, O.; Babalola, A; Abdulyekeen, A.This study evaluated regional vegetation dynamics and changes between 2015 and 2020 using Google earth engine (GEE) platform and normalized difference vegetation index (NDVI) derived from the multi-petabyte catalogue of sentinel-2 imageries. Using the computational capability of GEE, yearly mean NDVI from 2015 to 2020 were computed using level C-1 product. Subsequently, each of the NDVI images was classified into four land cover classes; water bodies, non-vegetated, grassland/cropland/shrubs, and forest using NDVI threshold values of < 0.01, 0.01-0.20, 0.20-0.30 and > 0.30, respectively. The classified maps allowed for the assessment of yearly variation in vegetation and changes between 2015 and 2020. Result showed that nonvegetated area increased from 18.53% in 2015 to 42.56% in 2020 (~ 25.00% gain), the forest area reduced to 6.78% in 2020 compared to 23.76% measured in 2015 (~ 17.00% loss in forest); whereas water bodies and grassland/cropland/shrubs remained relatively constant (0.21 and ~ 50.00%, respectively) across the years studied. Presently, the forest land was estimated to be about 2, 371.131 km2 (~ 6.70%) of the total land mass, grassland/cropland/shrubs occupied 17, 770.79 km2 (~ 50.07%), non-vegetated area was slightly less than half with 15, 274.85 km2 (~ 43.04%) and water bodies occupied 75.68 km2 (~ 0.21%).Item A COMPARISON OF DATA FROM DGPS AND GPSS OBSERVATIONS(Department of Geography, Nassarawa State University, Keffi, 2017) Babalola, A; Emmanuel, BThe advent of the global positioning systems both the handheld (HGPS) and dual frequency (DGPS) equipment has made data collection and processing easier and with better accuracy. The integration of GPS and remote sensing data with geographic information systems has also received wide applications. In this paper, we present data collected using two HGPSs and a DGPS equipment with the aim of processing, analyzing and comparing the data using statistical approach. The results show a significant difference between the data collected using the equipment.Item DESIGN AND IMPLEMENTATION OF SUSTAINABLE BUILT ENVIRONMENT: THE ROLE OF SURVEYING AND GEOINFORMATICS TOWARDS EFFECTIVE COLLABORATION WITH OTHER PROFESSIONALS(Faculty of Environmental Sciences, University of Ilorin, 2019) Ahmadu, H. A; Babalola, A; Salami, B. I.Built environment sustainability has become an issue of national concern, owing to the constant threat posed by its negative impacts on the survival of man. This has made it necessary for a study on how there can be collaboration for sustainable development in the built environment, in order to reduce or completely eliminate its negative impacts (such as climate change, environmental degradation, desert encroachment, etc.). This paper proposes the identification of the role of professionals in the design and implementation of built environment, as a means of enhancing effective collaboration for sustainable development in the built environment. The roles of Surveying and Geo-informatics professionals in design and implementation stage of the built environment were investigated through a review of literature, after which a research questionnaire was issued to professionals in the built environment to seek their assessment on how each role could serve as a collaborative support towards achieving sustainable development in the built environment. Descriptive statistics (mean score) was used to analyze and gain an overview of the data obtained. The results showed that all the roles of Surveying and Geo-informatics at the design and implementation stage of built environment would support and enhance effective collaboration for sustainable development in the built environment.Item DESIGN AND IMPLEMENTATION OF SUSTAINABLE BUILT ENVIRONMENT: THE ROLE OF SURVEYING AND GEOINFORMATICS TOWARDS EFFECTIVE COLLABORATION WITH OTHER PROFESSIONALS(Faculty of Environmental Sciences, University of Ilorin Kwara State Nigeria, 2019-05) Ahmadu, H.A; Babalola, A; Issa, B.SBuilt environment sustainability has become an issue of national concern, owing to the constant threat posed by its negative impacts on the survival of man. This has made it necessary for a study on how there can be collaboration for sustainable development in the built environment, in order to reduce or completely eliminate its negative impacts (such as climate change, environmental degradation, desert encroachment, etc.). This paper proposes the identification of the role of professionals in the design and implementation of built environment, as a means of enhancing effective collaboration for sustainable development in the built environment. The roles of Surveying and Geo-informatics in design and implementation stage of the built environment were investigated through a review of literature, after which a research questionnaire was issued to professionals in the built environment to seek their assessment on how each role could serve as a collaborative support towards achieving sustainable development in the built environment. Descriptive statistics (mean score) was used to analyze and gain an overview of the data obtained. The results showed that all the roles of Surveying and Geo-informatics at the design and implementation stage of built environment would support and enhance effective collaboration for sustainable development in the built environment.Item Obstetric performance of mothers with fetal macrosomia in Bida, North Central Nigeria(College of Health Sciences, University of Ilorin, 2017-10) Adewale, Folorunsho; Adeniran, Abiodun; Ijaiya, Munirdeen; Babalola, AFetal macrosomia remains an important determinant of perinatal outcome and a contributor to neonatal morbidity and mortality due to its possible attendant complications. The aim of the study was to determine the maternal characteristics, as well as neonatal and maternal outcome following delivery of macrosomic babies. A descriptive study of deliveries that resulted in the delivery of macrosomic babies at the Federal Medical Centre, Bida, Nigeria was conducted over a five year period. The list of eligible parturient was compiled from the delivery registers, the case files were retrieved and relevant information extracted. Statistical analysis was with SPSS version 20.0 and p<0.05 was significant. Out of 8141 deliveries, macrosomia occurred in 500 (6.1%); among the 480 cases analyzed, 345(71.9%) mothers of macrosomic babies were <35 years of age, the mean maternal weight at term was 89.42kg±2.50 while 297(61.9%) mothers had previous delivery of macrosomic babies. Also, 337(70.2%) women had vaginal delivery while maternal risk factors for fetal macrosomia were not statistically significant relative to the mode of delivery (p0.857). Maternal complications included perineal lacerations [90(18.8%)] and primary postpartum haemorrhage [82(17.1%)]. Maternal booking status (p0.001), male fetal gender (p0.001) and birth weight less than 4500g (p0.002) were significant predictors of vaginal delivery while maternal complications were significantly higher following vaginal delivery (p0.001). Low APGAR scores were higher following vaginal deliveries (p0.732); the perinatal mortality rate was 31/1,000 live birth (15/480) but there was no maternal death. This study revealed a high incidence of fetal macrosomia and vaginal delivery was associated with a high maternal and perinatal morbidity.Item The Spatial pattern of Drought and its severity in Borno State Nigeria(Department of Geography, University of Ilorin, 2017) Babalola, A; Ogunkunle, B. TThe purpose of this study is to present the pattern of rainfall distribution and drought analysis in Borno state. The study was carried out using Geographic Information Systems (GIS) approach and drought indices. Rainfall data from 1998-2017 was used to analyze the drought conditions and the Standard Precipitation Index (SPI) method to compute the drought indices. In order to identify the drought years and the extent of annual rainfall deficit, the annual rainfall departure analysis was applied. Thiessen polygon was used to present the drought severity maps (2000, 2004, 2006, 2009, 2011 and 2013), of the study area where the maximum SPI value occurred in 2011 and 2013. Mild and moderate droughts occur in the central portion of the study area. Severe and extreme droughts were mostly found in the northern and some southern parts of the state.