Skew-T and Historic data

The SondeHub tracker has been updated this month gaining two new major features, viewing historical launch site data, and generating Skew-T plots. The historical launch site data allows you to plot the landing positions for all sondes assigned to a specific launch site. The launch site modal has been expanded to allow for a year and month selection of data to display.

The historical data is than loading from the AWS S3 bucket and we check if there is any recovery information for the sondes before we plot the downloaded data on the map. The last known positions are marked with a circle marker where the outer ring colour indicates the altitude with 'cooler' colours representing altitudes close to the ground, and 'warmer' colours representing altitudes higher in the air. The contents of the circle will be white if no recovery information was found and grey if information was found.

The entire flight path for these historical sondes can be downloaded by opening the modal by clicking on the marker and selecting the flight path option. This modal will also show information about the sonde download from S3 including the receiver of the last frame and any recovery information.

The other new feature introduced to the tracker is the ability to generate a Skew-T plot for any sonde with the required weather information. The Skew-T chart can be generated for any loaded sonde by selecting the Skew-T button from the sidebar.

The complete data for the sonde will be downloaded from AWS which may take 20s+ depending on the amount of data available. The downloaded sonde information will be processed into a format that the Skew-T library can process.

~ Luke

You can check out these features on the testing version of the site at https://testing.v2.sondehub.org/ . Mark (VK5QI) has put together a user guide here : https://github.com/projecthorus/sondehub-tracker/wiki/SondeHub-Tracker-User-Guide