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Looking at how weather data is collected and used to inform us about how our climate is changing. earlier, i looked at temperature. now we're going to turn our attention to rainfall. mike, of course one of the most important types of weather data that is recorded is rainfall, but how do we record rainfall at specific sites and then interpret that to say for instance back on the 3rd of october 2020 it was the uk's wettest day on record? so we do monitor it carefully. how do we take those observations? from a network of approximately 2,000 rain gauges across the uk, we interpolate these data ont...

How do we take those observations? from a network of approximately 2,000 rain gauges across the uk, we interpolate these data onto a gridded data set covering the uk, and the result of that are products like this map that you can see here of rainfall on the 3rd of october 2020. this was the wettest day on record with 30.1 millimetres. that statistic is basically an average across the uk, but when we do the maths on that, 30.1 millimetres comes up as 7.6 cubic kilometres, which is approximately enough rain to fill loch ness, so quite a remarkable amount! once we have got that system for knowing...

At specific sites and interpret that to say, for instance, back in the 3rd of october 2020 it was the wettest day on record in the uk? we monitor carefully, how we take the observations from a network of 2000 rain gauges across the uk, we interpolate the data into a gridded data set and we make this map of rainfall on the 3rd of october for example, the wettest day on record with 30.1 millimetres. that statistic is basically an average across the uk but when we do the maths on that, 30.1 millimetres comes up as 7.6 cubic kilometres, approximately enough rain to fill loch ness so quite a remark...

The data into a gridded data set and we make this map of rainfall on the 3rd of october for example, the wettest day on record with 30.1 millimetres. that statistic is basically an average across the uk but when we do the maths on that, 30.1 millimetres comes up as 7.6 cubic kilometres, approximately enough rain to fill loch ness so quite a remarkable amount! once we had the system for knowing how much rain falls across the uk tell me about this one which goes back 180 years and how has rainfall changed in the uk over time? this is a uk national rainfall series and there is natural variability...

2020 it was the uk's wettest day on record? so we do monitor it carefully. how do we take those observations? from a network of approximately 2000 rain gauges across the uk, we interpolate these data onto a gridded data set covering the uk, and the result of that are products like this map that you can see here of rainfall on the 3rd of october 2022. this was the wettest day on record with 30.1 millimetres. that statistic is basically an average across the uk, but when we do the maths on that, 30.1 millimetres comes up as 7.6 cubic kilometres, which is approximately enough rain to fill loch ne...