Question to answer:
Which fields in the attribute tables are critical to implement the animations in both the population change and hurricane paths?
How are the fields organized?
The time series data are very important to the animations. In the population change map, we have time series data from 1800 to 2000. In the hurricane paths, we also have the time series for each hurricane.
In the population change data, there are two fields start date and end date, the interveral of data is 10 years. In the hurricane data, there is only one time related field: ISO_time, this field record the location of the hurricane every 6 hour.
