 |
| Yemi in
Brazil collecting data/measurement of leaf area index,
photosynthesis and respiration of plants and soil as input to
climate change modeling. |
Yemi
Ogunbadewa is a Nigerian PhD student at the Geography Department, Adekunle
Ajasin University, (formerly Ondo State University) Akungba-Akoko, Ondo
State, Nigeria where he works as a lecturer. His PhD program is through the
Telford Institute of Environmental Systems University of Salford, United
Kingdom, (under the supervision of Professor F. M. Danson). A description of
his Ph.D work is below.
Yemi is also
a
recent winner of ICONE grant, to visit
University of Sao Paulo in
Brazil
as a research fellow
http://www3.unifi.it/ICONE/Article45.html
Ogunbadewa
graduated from the University
of Ilorin in 1982 earning a BS in Geography, the University
of Lagos in 1990 earning an MS in Geography & Planning, and the University
of Stockholm in 2002 earning a United Nations International certificate in
remote sensing and GIS.
Description
of PhD work
Modelling
vegetation change with multi-sensor remote sensing data in the UK
Summary
There is a clear
need for a suitable approach to monitoring of vegetation dynamics at a range
of scales because of its impacts on biogeochemical cycles. However, cloud
cover has been a limitation to the extraction of vegetation cover
information from a single sensor in cloudy regions, resulting in trade-off
between sensors resolution, causing insufficient data with the use of high
resolution sensors in the assessment of environmental dynamics and
impediment to consistent calculation of the Normalized Difference Vegetation
Index (NDVI) values due the requirement of temporally consistent
multi-date images. Therefore, it becomes necessary to consider combine data
from a number of different sensors with different spatial and temporal
resolutions, wavebands and radiometric properties.
The Disaster
Monitoring Constellation (DMC) satellite was used in this research because
of it has a moderate spatial and high temporal resolution capability. DMC
satellites offer a unique advantage over other medium resolution satellite
systems for monitoring of vegetation cover dynamics because its ability to
provide multi-spectral daily images of any part of the world in three
Landsat-equivalent spectral bands (green, red and near infra-red). The wide
swath width of 600km allows large areas to be imaged in one overpass with no
need for mosaicing of images from different dates. The contribution of daily
images from the constellation of satellites can fill the data gap for any
event that is missed by a given DMC satellites.
The main aim of
this research is to examine the potential of multi-sensor remote sensing
data in monitoring vegetation change and in particular to assess both the
high revisit capability and vegetation cover information that may be
provided by different satellites.
DMC data, used in
combination with data from other satellite systems such as, Landsat ETM,
Modis and Meris, may provide the UK with the first usable time series
vegetation cover data with potential applications in hydrology, ecology and
agriculture.
Centre for
Environmental Systems Research
School of Environment and Life Sciences
University of Salford
Manchester M5 4WT, UK
Email:
ogunbadewa202@yahoo.com
Email:
y.ogunbadewa@conservationinstitute.org
Recent conference paper/poster
presentations
Ogunbadewa E.Y. 2007: Spatial and Temporal Variation of Cloud Cover in
the UK. In Centre for Environmental
Systems Research Spring Seminar Series, 15 February 2007 Salford UK.
Ogunbadewa, E.Y., Armitage, R.P., and Danson, F.M. 2006: Radiometric and
geometric properties of disaster monitoring constellation (DMC) and
enhanced thematic mapper (ETM+) satellite data of the UK: In
International Conference on integrated approaches to monitoring,
measuring and modelling the environment organized by Photogrammetry and
Remote sensing Society, Fitzwilliam College, University of Cambridge
,5th – 8th September 2006
Ogunbadewa E.Y. 2006: Measurement of
leaf area index in two contrasting vegetation canopies. In
Centre for Environmental Systems Research
Spring Seminar Series. 16 February
2006 Salford UK.
Ogunbadewa, E.Y. 2004.
Use Of High Resolution Satellite Data For Hydrological
Studies of A River Basin In Nigeria .International Conference on
Hydrology: Science & Practice for the 21st century organized by British
Hydrological Society 12-16 July 2004 London U.K
Ogunbadewa, E.Y. 2004. Modelling
Vegetation Change at A River Catchment scale With Multi-Sensor Remote
Sensing Data .Salford Postgraduate Annual Research Conference (SPARC) U.K
24-25 November 2004.
Ogunbadewa, E.Y., Armitage, R.P.,
and Danson, F.M. 2005: Cloud cover probability and satellite revisit
period in North West England: In International Conference on Measuring,
Mapping and Managing a Hazardous World organized by Photogrammetry and
Remote sensing Society, Portsmouth University 6-9 September 2005.
Published Papers
Ogunbadewa, E.Y.
2003. Determination of shoreline retreat and erosion processes in the
Atlantic coast of southern Nigeria using remote sensing technique: In
International Conference on Coastal Management, organized by NOAA, U.S.A
14-17 July 2003.
Ogunbadewa, E.Y.
2003. Reflections on environmental management policies and laws in Nigeria.
Journal of Policy Initiative pp 67-75.
Ogunbadewa, E.Y.
2002. The prospect of the use of geographic information systems in
environmental management and development in Nigeria” in book; Governance,
the Environment and Development. pp. 231-241.
Ogunbadewa, E.Y.
2002. Some Physico-chemical properties of water from hand-dug wells in the
basement complex of southwestern Nigeria. AQUA-Journal of Water Supply:
Research and Technology. Vol. 51, No 7 pp. 407-414 London. U.K.
Ogunbadewa, E.Y. 2001. Use of aerial
photography and water in wells to delineate shallow ground water. Water
International. pp 558-560 Illinois,
USA.
Ogunbadewa, E.Y.
2000. The significance of hand-dug wells in urban water supply of Ado-Ekiti
Southwestern Nigeria. Journal of Urban Affairs, pp 7-22.
Ogunbadewa, E.Y.
1998. Environmental aspect of changes in ozone concentration in Nigeria.
Journal of Issues on Global Environment. pp 43-45.
Ogunbadewa, E.Y.
1998. Environmental impact of bush fire. International Journal of
Environment and Development, pp 1-5.
Ogunbadewa, E.Y.
1998. On the utilization of remote sensing technique in water resources
development. Journal of Geography, Environment and Planning pp 87-69.
Ogunbadewa, E.Y.
1998. Environmental impact assessment of Ado-Ekiti: A new state capital in Nigeria.
Journal of Issues in Social Science, pp 68-79.
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