There is basically a one-to-many relationship between these two tables – that means for one location in the asset table, there are multiple records in the observation table. The spatial table will be referred to as an “asset table” and the second table will be referred to as an “observation table” in this blog. And a second table stores observed data, the date time when observation was made, and an identifier to link the data to location stored in the spatial table. One is a spatial table that contains locations, unique identifiers and may have some descriptive attributes such as name, type etc. To maintain it efficiently in a geodatabase, this information is stored in two separate tables. The later case is the focus of this blog post. In these examples, weather stations and gauges along streams are stationary (their locations do not change) while observed data such as temperature, wind speed, or water quality etc. For example, temperature and wind speeds are collected at weather stations on a daily basis, or water flow or quality may be measured at gauges along streams at irregular intervals.
vehicle tracking etc.Īnother one is where locations are stationary but v alues are measured over time at those locations. One where the location of an entity moves over the time, e.g. They can be broadly classified into two groups: Time-series data stores observations, measurements, model results, or other data obtained over a period of time, at regular or irregular intervals. Play back flight data using time slider and query layer in ArcGIS Pro.Dynamic Aggregate Points within Polygon Features for Exploratory Analysis.Transform Dynamically Aggregated Time Series Results into Polygons in ArcGIS.Dynamic Spatiotemporal Exploratory Analysis with Aggregated Results Using Time Series Data in ArcGIS.
Please read the following blogs that talks about this in greater details. Since this article was written, some enhancements were made in ArcGIS Pro to make simplify the user experience and integrate this with other part of the software such as time and range sliders.
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