Читать книгу GIS Research Methods - Steven J. Steinberg - Страница 12

In GIS-based research, a significant amount of time and effort goes into data acquisition and preparation. Data may come from a variety of existing sources or could be newly collected. With the widespread use of GIS, a growing number of digital data sources are becoming available. Therefore, it is common for many research projects to incorporate a substantial amount of existing, secondary data. Examples may include GIS layers or tabular data representing demographic, health, economic, or environmental information. Data may be acquired from a variety of sources, including local, regional, statewide, national, and international governments; nonprofits; and private organizations. Chapter 6 outlines how to locate, assess, and gain access to existing or secondary data relevant to the researcher’s project.