For a geographer studying the effects of a flood on settlement patterns, which resource would be most useful?

Census data taken after the flood would be the most useful resource for a geographer studying the effects of a flood on settlement patterns. This data provides quantitative information on the population, demographics, housing, and economic factors in the affected areas. By analyzing the census data, the geographer can determine how the flood impacted the population density, migration patterns, and the recovery of communities in terms of rebuilding efforts.

Other resources, while potentially informative, may not provide the comprehensive understanding necessary for assessing settlement patterns. For example, a film clip of the floodwaters captures a moment in time but does not offer detailed demographic insights or long-term effects on the population. An aerial photograph of the river's source may illustrate geographical features related to the flood, but it lacks the necessary context regarding how the flood affected local communities. A soil map indicating the A and B horizons can contribute to understanding land use and agricultural capabilities but does not directly address changes in population or settlement due to the flood's impact.