Geographic Information Systems (GIS), employs various tools in capturing, storing, manipulating, processing and retrieving geographical data. GIS can be used to answer questions of where, what, and how a phenomenon occurred. For example, the vegetation at Yongwa quarry consists of different species at different locations. GIS can help in identifying the type of vegetation species which are there (what), the location of these species (where), and the way they affect each other (how).
Remote Sensing, which is also a geospatial technology, is the process of obtaining information from the surface of the earth without being in contact with the earth. We practice remote sensing all the time. Consider the human body, certain organs help us obtain information from our environment without necessarily being in direct contact with the environment. The eyes, nose and ears help in remotely sensing our surrounding environment all the time.
Using this approach, we aim to use satellite that are several kilometers above the earth surface to study the biodiversity of the Yongwa quarry. These satellites take images of the earth surface on a continuous basis, hence they provide us with a lot of information about the quarry area today and in the past. This captured information can help us understand the changes in vegetation cover over the years and to make future projections