Salman Ashraf
Ph D student
Salman Ashraf is currently completing his PhD on mapping freshwater habitats for large rivers and lakes of the Waikato region using subpixel classification of remotely sensed images. His supervisors are Lars Brabyn, Brendan Hicks, and David Hamilton, and the study is jointly funded by Environment Waikato and FRST contract UOWX0505. A primary objective is to improve spatial resolution from satellite images. As the target vegetation is small and heterogeneous in nature, moderate spatial resolution imagery if used with conventional pixel classification techniques provide poor results. Subpixel classification can produce accurate results as it uses spectral response of the object and detects its whole and fractional occurrences within a pixel. It thus allows classification of objects smaller than the spatial resolution of the sensor. Salman completed his MSc in Space Sciences from Pakistan in 1995. His MSc thesis was on image processing of SPOT XS and PAN data to identify different development features of Lahore city. He later worked as GIS/Remote Sensing specialist with World Wide Fund for nature (WWF-Pakistan), International Water Management Institute (IWMI-Pakistan) and Environmental Research and Wildlife Development Agency (ERWDA), Abu Dhabi, UAE. In addition, Salman has an extensive background in the use of GIS and remote sensing software including ArcInfo, ArcViewGIS, ERDAS Imagine, ER Mapper and ENVI.
E-mail: salman@waikato.ac.nz
Expand to see publications from Salman AshrafPublications
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Journal, book, and conference publications
Ashraf, S., Brabyn, L., Hicks, B.J. and Collier. K. 2010. Satellite remote sensing for mapping vegetation in New Zealand freshwater environments: a review. New Zealand Geographer 66: 33-43. (Read abstract)
Ashraf, S., Brabyn, L. and Hicks, B.J. 2009. Remote sensing of freshwater Environments: Trial application in the Lower Waikato River. CBER Contract Report No. 103. Client report prepared for Environment Waikato. Centre for Biodiversity and Ecology Research, Department of Biological Sciences, School of Science and Engineering, The University of Waikato, Hamilton.
Ashraf, S., Brabyn, L. and Hicks, B.J. 2008. Evaluating remote sensing data classification techniques for mapping freshwater habitats: Trial application in Tongariro River delta, Lake Taupo. CBER Contract Report No. 87. Client report prepared for Environment Waikato. Centre for Biodiversity and Ecology Research, Department of Biological Sciences, School of Science and Engineering, The University of Waikato, Hamilton.
Ashraf, S., Brabyn, L. and Hicks, B.J. 2007. Remote sensing of freshwater habitats for large rivers and lakes of the Waikato region using sub-pixel classification. CBER Contract Report No. 63. Client report prepared for Environment Waikato. Centre for Biodiversity and Ecology Research, Department of Biological Sciences, School of Science and Engineering, The University of Waikato, Hamilton.
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