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Data acquired from a moving platform has additional considerations compared to a stationary platform. Standard time series analysis techniques may not be appropriate. Spatial averages, binning, maps, etc, maybe better approaches than temporal resampling and variable standard measurement versus time plots. It also depends on the instrument, sensor and deployment type. For instance, devices may or may not be orientation (heading, pitch, roll) sensitive, such as a temperature sensor versus a current meter. For this reason compared to a directional sonar. (Footnote: most, if not all our directional devices offer processed data that are corrected for orientation dynamically, but raw data is not corrected.). All measurements are sensitive to position (latitude, longitude, depth). In order to make our users aware of these considerations, all mobile data that is resampled and/or plotted versus time will include a warning to user. In some cases, resampling or plotting by time is appropriate. Our mobile data products also include any available positioning and attitude data as detailed here: Positioning and Attitude for Mobile Devices, so that users may consider make use of the spatial context in their analysis.
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