ABSTRACT
Evaluators employ multiple approaches and methods to build a credible evidence base to measure the results and impacts of interventions. The increasing availability and reduced cost of geospatial data, including from satellite remote sensing, opens up new possibilities for evaluators. Utilizing geospatial data and tools allows for quantified observation of changes in ground conditions and the (re)creation of baselines and time series data. Geospatial analysis can be used for the analysis of both biophysical and environmental conditions and the distribution and changes in settlement patterns and infrastructure, as well as socioeconomic development. Using satellite and other geospatial information in conjunction with other methods and data sources – literature research, surveys, on-the-ground investigations, etc. – strengthens the evidence base, allows for enhanced triangulation between various sources of information, and adds quantitative analysis to evaluations. Drawing upon experiences from evaluations by the Global Environment Facility (GEF) Independent Evaluation Office, this chapter will demonstrate the feasibility and utility of geospatial analysis in making evaluation more meaningful.
