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 Prof. Timothy Dube

Position: Associate Professor
Department: Department of Earth Science
Faculty: Faculty of Natural Science
Qualifications: MSc (University of Twente,
Faculty of Geo-information and Earth Observation, Netherlands) 2012, PhD (University of
KwaZulu Natal, South Africa) 2016.
Tel: 0219594130
Fax: 021 959 3118
Email: tidube@uwc.ac.za
Research:
 
 
 
 

Biography

 Prof. Timothy Dube joined the University of Western Cape in January 2018 as a Senior Lecturer in GIScience and Earth Observation. Prior, he worked at the University of Zimbabwe as a staff development fellow (2009 – 2012), UKZN- relief Lecturer (2013 - 2015), and the University of Limpopo as senior lecturer (2016 - 2017). He is NRF-rated researcher, with over 10 years of experience in the field. He focusses mainly in GIScience and Earth observation applications in water resources, vegetation monitoring and assessment using satellite technology. He does research on contemporary issues, focusses on the use of cutting edge satellite-based EO technologies in monitoring and understanding various components of the hydrological cycle, climate change, invasive species mapping and land cover analysis. His research work has been extensively supported by the Applied Center for Climate and Earth Systems Science, French Research Platform – Production and Conservation in Partnership (RP-PCP), a French Agricultural Research Centre for International Development (CIRAD), NRF, AU, SANSA and the European Space Agency. Prof. Dube has also been involved in intensive EO training and capacity building across different institutions of higher learning and research in southern Africa. He is also a member of the African Association of Remote Sensing of the Environment and WaterNET. His engagement with EO applications is not only restricted to Africa only, but also involves collaboration with various EO experts from European institutions, promoting EO knowledge and skills transfer to enhance policy formulation and decision making in the African continent. He is a lead researcher in several international projects including the TIGER-Bridge African Water and Climate Change Phase 1 Project, commissioned by the European Space Agency - Water for Agriculture (2016-2017) and partner on the EU- Africa, Small Research Grants in Climate Change Science - African Institute for Mathematical Sciences (AIMS) (2019-2020) and AFRICA EU and GMES – Wetland Monitoring and Assessment Southern Africa, (2018 – 2020) among others. He has published over hundred (100) scientific articles in high impact factor ISI journals. His is also a revered reviewer for both local and international journals and project funders.
Research Interest:
1. Land use and land cover and their effects,
2. Inundation in floodplain wetlands
3. invasive alien species water use estimation
4. surface water mapping
5. remote sensing of vegetation and vegetation biophysical properties
6. Remote sensing of C3 and C4 grass photosynthetic pathways & species mapping,
7. Remote sensing of vegetation seasonality and long term monitoring,
8. Machine learning and remote sensing
9. Geostatistics and remote sensing integration
10. Evapotranspiration and interception estimation using remote sensing data
11. Big data and data fusion
12. GIS and Global Position System applications
13. Grazing resources assessment and monitoring

Professional Awards and Professional Membership
• 2018 - NRF Best Young Researcher Nominee for the 11th HOPE Meeting with Nobel Laureates in Okinawa, Japan.
• 2018 - NRF Rated as an Established researcher in Remote Sensing.
• 2017 - Visiting Scholar, Institute for Integrated Management of Material Fluxes and of Resources, United Nations University, Germany.
• 2017 - Outstanding Reviewer: ISPRS Journal of Photogrammetry and Remote Sensing.
• 2016 Outstanding Reviewer: International Journal of Applied Earth Observations &Geoinformation.
• 2017 - Outstanding Reviewer: ISPRS Journal of Photogrammetry and Remote Sensing.
• 2016–2018: - Review Confirmation Certificate: Remote Sensing MDPI journal.
• 2007 Awarded a book prize for academic excellence, (University of Zimbabwe).
• 2006 Awarded a book prize for academic excellence, (University of Zimbabwe).
• African Association of Remote Sensing of the Environment (AARSE) Technical Committees 2014 –
• Applications and Algorithm Committee Member of AARSE.
• Capacity Building & Outreach Committee Member of AARSE.
• Society of South African Geographers (SSAG) Council member, 2017.
• Technical Assistant, AARSE Conference, University of Johannesburg, Since 27-31 October 2014.
• Member of the South African Council for Natural Scientific Professions – (SACNASP).
• Member of SACNASP:  South African Council for Natural Scientific Professions.

Publications

  1. T Dube, O Mutanga, K Seutloali, S Adelabu, C Shoko: Water quality monitoring in sub-Saharan African lakes: a review of remote sensing applications. African Journal of Aquatic Science 03/2015; 40(1). DOI:10.2989/16085914.2015.1014994.​​
  2. Dube Timothy, Sibanda Mbulisi, Shoko Cletah: Examining the variability of small-reservoir water levels in semi-arid environments for integrated water management purposes, using remote sensing. Transactions of the Royal Society of South Africa 10/2015; 71(1). DOI:10.1080/0035919X.2015.1102175
  3. Cletah Shoko, Dube Timothy, David Clark: Total evaporation estimation for accurate water accounting purposes: An appraisal of various available estimation methods. Geocarto International 07/2016; DOI:10.1080/10106049.2016.1208682
  4. Shoko Cletah, David Clark, Michael Mengistu, Dube Timothy, Hartley Bulcock: Effect of spatial resolution on remote sensing estimation of total evaporation in the uMngeni catchment, South Africa. Journal of Applied Remote Sensing 10/2015; 9(1). DOI: 10.1117/1.JRS.9.095997
  5. Webster Gumindoga, Donald T. Rwasoka, Innocent Nhapi, Timothy Dube: Ungauged runoff simulation in Upper Manyame Catchment, Zimbabwe: Applications of the HEC-HMS model. Physics and Chemistry of the Earth Parts A/B/C 05/2016; DOI: 10.1016/j.pce.2016.05.002
  6. S. Dlamini, I. Nhapi, W. Gumindoga, T. Nhiwatiwa, T. Dube: Assessing the feasibility of integrating remote sensing and in-situ measurements in monitoring water quality status of Lake Chivero, Zimbabwe. Physics and Chemistry of the Earth Parts A/B/C 04/2016; DOI: 10.1016/j.pce.2016.04.004
  7. C. Shoko, D.J. Clark, M.G. Mengistu, H. Bulcock, T. Dube: Estimating spatial variations of total evaporation using multispectral sensors within the uMngeni catchment, South Africa. Geocarto International 05/2015; 31(3). DOI:10.1080/10106049.2015.1047414
  8. Khoboso Elizabeth Seutloali, Heinz Reinhard Beckedahl, Timothy Dube, Mbulisi Sibanda: An assessment of gully erosion along major armoured-roads in south-eastern region of South Africa: A remote sensing and GIS approach. Geocarto International 05/2015; 31(2). DOI:10.1080/10106049.2015.1047412
  9. Tsitsi Bangira, Ben H. P. Maathuis, Timothy Dube, Tawanda W. Gara: Investigating flash floods potential areas using ASCAT and TRMM satellites in the Western Cape Province, South Africa. Geocarto International 04/2015; 30(7). DOI:10.1080/10106049.2014.997302
  10. Timothy Dube, Onisimo Mutanga: The impact of integrating WorldView-2 sensor and environmental variables in estimating plantation forest species aboveground biomass and carbon stocks in uMgeni Catchment, South Africa. ISPRS Journal of Photogrammetry and Remote Sensing 07/2016; 119. DOI: 10.1016/j.isprsjprs.2016.06.017
  11. Dube Timothy, Mutanga Onisimo, Shoko Cletah, Samuel Adelabu, Bangira Tsitsi: Remote sensing of aboveground forest biomass: A review. Tropical Ecology 05/2016; 57(2).
  12. Timothy Dube, Onisimo Mutanga: Investigating the robustness of the new Landsat-8 Operational Land Imager derived texture metrics in estimating plantation forest aboveground biomass in resource constrained areas. ISPRS Journal of Photogrammetry and Remote Sensing 10/2015; 108. DOI: 10.1016/j.isprsjprs.2015.06.002
  13. Timothy Dube, Onisimo Mutanga: Quantifying the variability and allocation patterns of aboveground carbon stocks across plantation forest types, structural attributes and age in sub-tropical coastal region of KwaZulu Natal, South Africa using remote sensing. Applied Geography 09/2015; 64. DOI: 10.1016/j.apgeog.2015.09.003
  14. Dube Timothy, Onismo Mutanga, Elfatih M. Abdel-Rahman, Riyad Ismail, Rob Slotow: Predicting Eucalyptus spp. stand volume in Zululand, South Africa: an analysis using a stochastic gradient boosting regression ensemble with multi-source data sets. International Journal of Remote Sensing 07/2015; 36(14). DOI:10.1080/01431161.2015.1070316
  15. Timothy Dube, Onisimo Mutanga: Evaluating the utility of the medium-spatial resolution Landsat 8 multispectral sensor in quantifying aboveground biomass in uMgeni catchment, South Africa. ISPRS Journal of Photogrammetry and Remote Sensing 03/2015; 101. DOI: 10.1016/j.isprsjprs.2014.11.001
  16. Timothy Dube, Onisimo Mutanga, Adam Elhadi, Riyad Ismail: Intra-and-Inter Species Biomass Prediction in a Plantation Forest: Testing
  17. T Dube, W Gumindoga, M Chawira: Detection of land cover changes around Lake Mutirikwi, Zimbabwe, based on traditional remote sensing image classification techniques. African Journal of Aquatic Science 03/2014; 39(1). DOI:10.2989/16085914.2013.870068
  18. Dube Timothy, Mutanga Onisimo, and Ismail Riyad: Quantifying aboveground biomass in African environments: A review of the trade-offs between sensor estimation accuracy and costs. Tropical Ecology 09/2016; 57(3).
  19. Timothy Dube, W. Tawanda Gara, Mbulisi Sibanda, Cletah Shoko, Amon Murwira, Henry Ndaimani, Chipo Hatendi: Estimating forest standing biomass in savanna woodlands as an indicator of forest productivity using the new generation WorldView-2 sensor. Geocarto International 09/2016;  DOI:10.1080/10106049.2016.1240717
  20. Cletah Shoko, Onisimo Mutanga, Timothy Dube: Progress in the remote sensing of C3 and C4 grass species aboveground biomass over time and space. ISPRS Journal of Photogrammetry and Remote Sensing 10/2016; 120. DOI: 10.1016/j.isprsjprs.2016.08.001
  21. Trylee Nyasha Matongera, Onisimo Mutanga, Timothy Dube, Romano Trent Lottering: Detection and mapping of bracken fern weeds using multispectral remotely sensed data: A review of progress and challenges. Geocarto International 09/2016;  DOI:10.1080/10106049.2016.1240719.
  22. Tawanda W Gara, Tiejun Wang, Andrew K Skidmore, Shadrack M Ngene, Timothy Dube, Mbulisi Sibanda: Elephants move faster in small fragments of low productivity in Amboseli ecosystems: Kenya. Geocarto International 07/2016; DOI:10.1080/10106049.2016.1206625
  23. Onisimo Mutanga, Dube Timothy, Ahmed Fethi: Progress in remote sensing: vegetation monitoring in South Africa. The South African geographical journal, being a record of the proceedings of the South African Geographical Society 06/2016; DOI:10.1080/03736245.2016.1208586
  24. Terence Darlington Mushore, Onisimo Mutanga, John Odindi, Timothy Dube: Assessing the potential of integrated Landsat 8 thermal bands, with the traditional reflective bands and derived vegetation indices in classifying urban landscapes. Geocarto International 05/2016; DOI:10.1080/10106049.2016.1188168
  25. Mbulisi Sibanda, Timothy Dube, Tariro Mubango, Cletah Shoko: The utility of earth observation technologies in understanding impacts of land reform in the eastern region of Zimbabwe The utility of earth observation technologies in understanding impacts of land reform in the eastern region of Zimbabwe. Journal of Land Use Science 02/2016; DOI:10.1080/1747423X.2015.1130756
  26. Cletah Shoko, Timothy Dube, Mbulisi Sibanda, Victor Bangamwabo: Quantifying the spatial and temporal changes in forested landcover using landscape metrics derived from remotely sensed data in rural parts of Zimbabwe. Transactions of the Royal Society of South Africa 02/2016; 71(1). DOI:10.1080/0035919X.2015.1121934
  27. Tatenda Dalu, Mwazvita TB Sachikonye, Mhairi E Alexander, Timothy Dube, P. William Froneman, Kwanele I Manungo, Onias Bepe, Ryan J Wasserman: Ecological Assessment of Two Species of Potamonautid Freshwater Crabs from the Eastern Highlands of Zimbabwe, with Implications for Their Conservation. PLoS ONE 01/2016; 11(1). DOI: 10.1371/journal.pone.0145923
  28. Cletah Shoko, Mhosisi Masocha, Timothy Dube: A new potential method to estimate abundance of small game species. African Journal of Ecology 12/2015; 53(4). DOI:10.1111/aje.12211
  29. Sibanda Mbulisi, Timothy Dube, Victor M Bangamwabo, Mutanga Onisimo, Cletah Shoko, Webster Gumindoga: Understanding the spatial distribution of elephant (Loxodonta africana) poaching incidences in the mid-Zambezi Valley, Zimbabwe using Geographic Information Systems and remote sensing. Geocarto International 09/2015;  DOI:10.1080/10106049.2015.1094529
  30. Melisa M. Matavire, Mbulisi Sibanda, Timothy Dube: Assessing the aftermath of the fast track land reform programme in Zimbabwe on land-use and land-cover changes. Transactions of the Royal Society of South Africa 04/2015; 70(2). DOI:10.1080/0035919X.2015.1017865
  31. Tatenda Dalu, Timothy Dube, P. William Froneman, Mwazvita T.B. Sachikonye, Bruce W. Clegg, Tamuka Nhiwatiwa: An assessment of chlorophyll-a concentration spatio-temporal variation using Landsat satellite data, in a small tropical reservoir. Geocarto International 03/2015; 30(10). DOI:10.1080/10106049.2015.1027292
  32. Mbulisi Sibanda, Timothy Dube, Khoboso Seutloali, Samuel Adelabu: Operational applications of remote sensing in groundwater mapping across sub-Saharan Africa. Transactions of the Royal Society of South Africa 03/2015; 70(2). DOI:10.1080/0035919X.2015.1017024
  33. Cletah Shoko, Timothy Dube, Mbulisi Sibanda, Webster Gumindoga: In-depth analysis of the impacts of rural population growth on the natural environment: A GIS and remote sensing approach. Transactions of the Royal Society of South Africa 03/2015; 70(2). DOI:10.1080/0035919X.2015.1014877
  34. W. Gumindoga, T.H.M. Rientjes, A.T. Haile, T. Dube: Predicting streamflow for land cover changes in the Upper Gilgel Abay River Basin, Ethiopia: A TOPMODEL based approach. Physics and Chemistry of the Earth Parts A/B/C 01/2015; 76-78. DOI:10.1016/j.pce.2014.11.012
  35. Cletah Shoko, Timothy Dube, Mbulisi Sibanda, Samuel Adelabu: Applying the Surface Energy Balance System (SEBS) remote sensing model to estimate 4 spatial variations in evapotranspiration in Southern Zimbabwe. Transactions of the Royal Society of South Africa 12/2014; 70(1). DOI:10.1080/0035919X.2014.989933
  36. Webster Gumindoga, David Chikodzi, Donald T. Rwasoka, Godfrey Mutowo, Sydney Togarepi, Dube Timothy: The Spatio-Temporal Variation of the 2014 Tokwe-Mukosi floods : A GIS and Remote sensing based approach.
  37. Gara, Murwira, Chivhenge, Dube, Bangira: Estimating wood volume from canopy area in deciduous woodlands of Zimbabwe. Southern Forests: a Journal of Forest Science 10/2014; 76(4). DOI:10.2989/20702620.2014.965981
  38. the Utility of High Spatial Resolution Spaceborne Multispectral RapidEye Sensor and Advanced Machine Learning Algorithms. Sensors 08/2014; 14(8). DOI:10.3390/s140815348
  39. Sam Adewale Adelabu, Timothy Dube: Employing ground and satellite-based QuickBird data and random forest to discriminate five tree species in a Southern African Woodland. Geocarto International 03/2014; 30(4). DOI:10.1080/10106049.2014.885589
  40. M. Chawira, T. Dube, W. Gumindoga: Remote sensing based water quality monitoring in Chivero and Manyame lakes of Zimbabwe. Physics and Chemistry of the Earth Parts A/B/C 12/2013; 66. DOI: 10.1016/j.pce.2013.09.003
  41. T. S. Chinembiri, M. C. Bronsveld, D. G. Rossiter, T. Dube: The Precision of C Stock Estimation in the Ludhikola Watershed Using Model-Based and Design-Based Approaches. Natural Resources Research 12/2013; 22(4). DOI:10.1007/s11053-013-9216-6

 

 

Book Chapters

  1. Dube Timothy, Murwira Amon, Alex Caron, Michel de Garine-Wichatitsky: Preliminary results on the permeability of veterinary fences to buffalo (Syncerus caffer) and cattle in Gonarezhou National Park, Zimbabwe. Fencing Impacts: A review of the environmental, social and economic impacts of game and veterinary fencing in Africa with particular reference to the Great Limpopo and Kavango-Zambezi Transfrontier Conservation Areas., 1st edited by K. Ferguson, J. Hanks, 01/2010: chapter 6; University of Pretoria, Mammal research Institute.

 

Conference Proceedings

  1. Ana Andreu, Timothy Dube, Hector Nieto, A. Madau, R. Guzinski, C. Shoko, Huelsmann, Dominic Mazvimavi, M. P Gonzalez-Dugo: Remote sensing of water use and water stress in African savannah ecosystem from local to regional scale: Implications for Land productivity. 11th AARSE 2016, Africana Hotel, Kampala, Uganda; 10/2016
  2. Dube Timothy, Mutanga Onisimo: Evaluating the influence of the red-edge band from RapidEye sensor in quantifying leaf area index for hydrological applications specifically focussing on plant canopy interception. WaterNet/WARFSA/GWPSA Symposium, Mauritius; 10/2015
  3. Dube Timothy, Mutanga Onisimo, Mbulisi Sibanda, Khoboso Seutloali: Remote Sensing of the Spatial and Temporal Variations of Land Degradation in a Dispersive Soil Environment: A Case of Oliver Tambo Municipality in the Eastern Cape, South Africa. WaterNet/WARFSA/GWPSA Symposium, Mauritius; 10/2015
  4. Dube Timothy, Mutanga Onisimo: Estimating aboveground biomass in the uMgeni catchment, South Africa using medium-spatial resolution Landsat 8 multispectral sensor. 2nd National Conference on Global Change, Nelson Mandela Metropolitan University, Port Elizabeth, South Africa; 12/2014
  5. Dube Timothy, Mutanga Onisimo, Abdel Rahman EM, Riyad Ismail: Predicting Eucalyptus stand volume in Zululand, South Africa: An analysis using stochastic gradient boosting regression ensemble with multisource dataset. African Association of Remote Sensing of the Environment, University of Johannesburg; 10/2014
  6. David Chikodzi, Gumindoga W, Rwasoka D, Mutowo G, Togarepi S, Dube T: The spatial variation of the 2014 Tokwe-Mukosi Floods: A GIS and Remote sensing based approach. WATER FORUM-Water security and Water Related Disaster Challenges: Policy Issues for Discussion, Monomotpa Crowne Plaza Hotel, Harare; 06/2014
  7. Dube Timothy: A remote sensing based water quality monitoring in Chivero and Manyame Lakes. 13th Water Net/WARFSA/GWP-SA Symposium; Johannesburg; South Africa; 10/2012
  8. Dube Timothy, Gumindoga Webster, Chawira Mary: Monitoring of Aquatic weeds in Lake Mutirikwi Lake from Landsat satellite imagery. 13th Water Net/WARFSA/GWP-SA Symposium; Johannesburg; South Africa; 10/2012

Projects and Technical reports

  1. Remote sensing of water use and water stress in African savanna ecosystem from local to regional scale: Implications for land productivity: TIGER Bridge project of the European Space Agency (ESA)- Water for Agriculture (2016-2017) _On going
  2. Research assistant: Research Platform Production and Conservation in Partnership (RP-PCP) on wildlife-livestock interface in the SE lowveld of Zimbabwe: monitoring disease prevalence and contacts between wild and domestic ungulates, Zimbabwe. RP-PCP Grant AHE#4. 2009-2012
  3. Research assistant: Estimating tobacco yield in commercial farms using remote sensing in Zimbabwe, January 2011
  4. Research assistant in an Environmental Impact Assessment project for the location of the UZ shopping mall within University of Zimbabwe main campus: Department of Geography and Environmental Science May 2010.

 

Postgraduate student Advisor

  1. Terence Mushore (PhD candidate in Environmental Science) UKZN

Thesis title: Remote Sensing of the Responses of Urban Climate to Surface Covers Dynamics in Harare, Zimbabwe (2014 – 2017) Terence Mushore (PhD candidate in Environmental Science) UKZN

  1. Abel Chemura (PhD candidate in Environmental Science) UKZN

Thesis title: Remote sensing biotic and abiotic stress in coffee (Coffea arabica L) (2014 – 2017)

  1. Cletah Shoko (PhD candidate in Environmental Science) UKZN

Thesis title: Discriminating the spatio-temporal variation of C3 and C4 grass species using remote sensing data to understanding their role on climate change (2015 - 2018) ongoing

  1. Ezra Pedzisai (PhD candidate) UKZN and University of Free State

Household vulnerability to dam-induced floods: A case of Tokwe Mukosi Dam, Zimbabwe

  1. Cletah Shoko (MSc Bioresources systems completed) UKZN

Thesis title: The effect of spatial resolution in remote sensing estimates of total evaporation in the uMgeni catchment (June 2013 – June 2015)

  1. Trylee Matongera (MSc candidate Environmental Science) UKZN

Thesis title: GIS and Remote Sensing applications for monitoring temporal and spatial distribution of Bracken Fern (Pteridium aquilinum) in the Drakensberg, South Africa June 2015 –Dec 2016). submitted

  1. Chinembiri Solomon Tsikai (PhD candidate in Environmental Science) UKZN

Integration of remote sensing and geo-statistics in modeling alien invasive species and their impact on primary production in the eastern Highlands of Zimbabwe (Proposal stage)​

 

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