A map is made up of different layers data, each showing new information that gives additional context to the layer above. In a humanitarian context these layers can be grouped into three data categories.
This is geographic data that is used as background mapping. Some form of basemap data is needed for every map. Examples of basemap data include:
This is typically demographic data about the country or area of interest (AOI) before an emergency. This data allows you to compare situational data against ‘normal’ conditions. Examples of baseline data include:
This is data for the country or area of interest (AOI) produced after the emergency. It is the most important data that you are trying to show on the map. Situational data has some currency to it and some of it may become baseline data over time. Examples of situational data include: