RQ | Focus | Data to compare | Comparison across | Sample 1 | Sample 2 | ||
---|---|---|---|---|---|---|---|
Geography | Data source / year | Geography | Data source / year | ||||
1 | Flood risk changes across time within the effective SFHA. | Exposure and vulnerability indicators. | Time | Effective floodplain. | MapPLUTO 2007; ACS 2006–2010. | Effective floodplain. | MapPLUTO 2018; ACS 2013–2017. |
2 | Flood hazard changes due to the shift from effective to preliminary SFHA. | Total and % area flooded, according to the effective and the preliminary floodplains. | Space | Effective floodplain. | FEMA Mapping Service center (n.d.); FEMA 2007. | Preliminary floodplain. | FEMA Mapping Service center (n.d.); FEMA 2013. |
3 | Flood risk changes due to adoption of the preliminary SFHA by adding and/or removing exposed areas and communities. | Exposure and vulnerability indicators. | Space | Effective floodplain. | MapPLUTO 2018; ACS 2013–2017. | Area added to floodplain due to expansion in preliminary update. | MapPLUTO 2018; ACS 2013–2017. |
4 | Differences in social vulnerability between exposed and non-exposed populations. | Vulnerability indicators. | Space | Preliminary floodplain | ACS 2013–2017. | Area outside of the preliminary floodplain | ACS 2013–2017. |