You can access the measurements and observations of the devices, and the alerts related to them in the map and list views.
Measurements
To view the real-time measurements and observations, select Map or Measurements at the top navigation.
The available parameters depend on your device. For example, GMP252 measures CO2. For details about the devices, measurement parameters, and reported values, see document Vaisala Xweather Protect, Xweather Optimize, Xweather Observe Measurement Parameters and Calculations.
In the Map view, device measurements can be accessed in two ways: from the list view in the left-hand corner, or by selecting a device directly on the map. Selecting a device opens the graph view, where available observations are displayed as graphs, with related parameters grouped together. For details, see Viewing measurements as graphs below.
The Measurements page shows measurements and observations from all the devices in table format. The devices are shown in alphabetical order based on their name (column Device name).
In this format, you can sort the data by columns. To return to the default view, refresh the browser page. When selecting a cell in a table, you can see more information about the actual measurement.
Viewing measurements as graphs
To look at data from a specific device, select a device from the left. This opens the graph view where the available observations are displayed as graphs with similar parameters grouped together.
To change the time scale, select the desired Time scale from the top. The graph is updated accordingly. The available options are:
1 hour
6 hours
1 day
7 days
1 month
Measurements are shown at different time scales depending on the frequency of data received from the device. If measurements are received at or below the resolution of the selected graph scale, they are displayed as-is without averaging.
Example: If measurements arrive every minute, they are shown directly for the 1-hour and 6-hour scales. However, for the 1-day, 7-day, and 1-month scales, values are averaged using 5-, 30-, or 60-minute intervals, respectively. Instant and mean values are calculated from the data points received at or after the displayed time.
For AtmoCast, the graph always displays the longest available cumulative sum:
If continuous, high-quality data is available, the 24-hour cumulative sum is shown.
If there is not enough data for a reliable 24-hour sum, the graph falls back to the 10-minute or 60-minute sum, depending on available measurements.
Measurement APIs
The APIs always return both the raw measurement values reported by the devices and any calculated or post-processed values derived from them.
Navigation
To return to the device list table, select the back arrow at the top.
To switch directly to another device, use the dropdown menu.
Checking historical data
To view historical data, download the data as CSV files or use the REST API.
In case a device produces data that has not passed the internal quality control, this is shown by having the device name in grey color on the observations page in table format. The individual measurement values have gray color and gray icons next to them. To see more information about the reasons for the rejected measurements, place your cursor on top of the values.
Downloading measurements
You can download data from Xweather Observe to CSV files for sharing and for use in other applications.
Select Measurements.
Select Measurement reports on the top right.
You can access CSV export from the graph view and table view.Select the devices and from which sensors you want to include measurements in the CSV export.
Select the start and end dates.
Select No averaging or the averaging period. Depending on how frequently and how many measurement parameters the selected devices and sensors report to the service, the data from multiple devices and sensors from a time period longer than one month typically needs averaging period to be selected.
Select to include measurements with required quality information.
Select Download CSV.
The file is generated and available on your computer in folder Downloads.
CSV export
If the CSV export returns an error, try selecting fewer measurements or using a shorter time scale.
File format
Exported files follow this naming convention:
csv-export-<yyyy-mm-dd>T<hh_mm_ss>Z-<yyyy-mm-dd>T<hh_mm_ss>Z.csv
File contents
Each file includes:
Export metadata: generation time, user time zone, and averaging period.
Device metadata: serial number, location, and device components.
Measurement data with timestamps.
Note: Some rows may contain timestamps without values if measurement data was missing, invalid, or uncertain.
Averaging rules
Averaging is based on the time zone selected in Preferences:
For 24-hour averages, timestamps are shown in local time, but days are aligned to UTC+0.
Example: If local time is UTC+2, the timestamp reads 28.01.2023 02:00.
If local time is UTC+0, the timestamp reads 28.01.2023 00:00.
Special case: AtmoCast sensor
For 1-hour averaging CSVs: the average of 10-minute sums is calculated, and the 1-hour and 24-hour sums are reported as maximum values.
For 6-hour and 24-hour averaging CSVs: averages of 10-minute and 1-hour sums are calculated, and the 24-hour sum is reported as a maximum value.
Measurement data quality control
When viewing observations as graphs a gray line below the graph indicates the period when the data quality control has rejected the measurement or measurements. Place your cursor over the gray line to see more information about why the data quality control has rejected the measurements. Note also that different time scales in the graph view affect whether quality control is shown or not. For example, when having measurements received once a minute and when selecting the 1-hour or 6-hour time scale, the measurements are not averaged. When selecting the 24-hour, 7-day, or 1-month time scale, the instant and mean measurement values are averaged, affecting whether the value reaches the set threshold limit or limits or not. For more information about quality control, see How does Xweather control measurement data quality?.