After that, the black lines for historic years are plotted to visualise the range of potential day-degree trajectories for the equivalent days of the year. > Generate a forecast in the graph on the right the amber line for 2021 includes observed temperature data until yesterday and forecast temperature for today and the next two days. The map on the left shows 38 locations across England, Scotland and Wales for which historic temperature data is available. This uses historical weather data to create a dynamic forecast of the expected date range of the start and 10% of migration. Holding the 'Ctrl' button while clicking on a year in the legend above the graph will highlight the corresponding line in the graph.ĭue to missing/incomplete weather data, not every location is necessarily included in every year. Note that the graph can only display a maximum of 3000 data points (~20 years) simultaneously. You can choose different years from the ‘Years’ dropdown box. The default view contains the years 2011–21, as well as selected years for which migration was predicted to be particularly early/late. Carrot Weather is a universal iOS app that is currently selling. Note that the other years are projected on 2021 calendar date based on the equivalent day of year, not date, to include 29 of February in leap years. For the best weather radar in an app that I've found, check out Storm by Weather Underground. Click a location on the map to display a comparison of 2021 (amber line) with other years (black lines) in the graph on the right.
This uses historical weather data to display the range in (predicted) dates of the start and 10% migration in different years. Narrow down the number of locations by 'Source' or by 'Country and region' by selecting from the dropdown list at the top. only 20 locations by end of June) simultaneously. The graph can only display a maximum of 3000 data points (i.e. The 'Date range' slider at the top can be changed to see/compare the accumulated day degrees over a particular time interval. Select more locations by holding the ‘Ctrl’ button or using the 'Rectangle select' button on the map. > Display the accumulated day degrees (based on observed temperature data until yesterday and forecast temperature for today and the next two days) for a particular location in the graph on the right. Note that once the day on which 10% migration is predicted is in the past, the diamond will no longer be shown. > Indicate the predicted progress towards the start and 10% migration in 2021 in the colour legend above the map. The map on the left shows 40 locations across England, Scotland and Wales for which temperature data is available in 2021. Track and compare the progress of day degrees in 2021 for selected locations.
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