Snow layer/landscape
Posted: Mon Dec 20, 2010 5:02 pm
Hello everyone,
My YoWindow location is Gdansk, Poland. For about 3 weeks we have had a constant snow layer varying from 2-15 cm I think. In other words the world outside is white I have no PWS station. As I have noticed, YoWindow shows the village with snow when the temparature is -5 deg C or below. For the most of recent time it was true for my location - outside there has been a decent layer of snow, and so showed YoWindow hence the temparature was also below -5 deg C. However on some rare cases when the temp rised to -3 or so the village was not covered by snow.
Now, what is my suggestion. Could you develop some "snow layer" alghoritm? I think YoWindow shall collect data regarding temperature and snow forecast. If it's possible YoWindow shall also retrieve weather data for previous 2-3 weeks. If there was snow falling AND the temperature over recent days didn't exceed 0 deg C, the snow layer should be visible. Then, some "snow melting alghoritm" should be implemented as well. Therefore, YoWindow shall aggregate the amount of snow that has fallen and estimate the snow layer thickness. Then, from this value YoWindow shall substract snow layer when the temperature was above 0 deg C. I don't know what's the relation between melting speed of 1 mm of snow and temperature, but I'm convinced that there must be some mathematical estimation for this. And going back to the idea, YoWindow shall compute when the snow layer disappears and when to turn off the snow layer in village landscape.
I think my proposal is clear, may be implemented and will be warmly welcomed by you, guys.
My YoWindow location is Gdansk, Poland. For about 3 weeks we have had a constant snow layer varying from 2-15 cm I think. In other words the world outside is white I have no PWS station. As I have noticed, YoWindow shows the village with snow when the temparature is -5 deg C or below. For the most of recent time it was true for my location - outside there has been a decent layer of snow, and so showed YoWindow hence the temparature was also below -5 deg C. However on some rare cases when the temp rised to -3 or so the village was not covered by snow.
Now, what is my suggestion. Could you develop some "snow layer" alghoritm? I think YoWindow shall collect data regarding temperature and snow forecast. If it's possible YoWindow shall also retrieve weather data for previous 2-3 weeks. If there was snow falling AND the temperature over recent days didn't exceed 0 deg C, the snow layer should be visible. Then, some "snow melting alghoritm" should be implemented as well. Therefore, YoWindow shall aggregate the amount of snow that has fallen and estimate the snow layer thickness. Then, from this value YoWindow shall substract snow layer when the temperature was above 0 deg C. I don't know what's the relation between melting speed of 1 mm of snow and temperature, but I'm convinced that there must be some mathematical estimation for this. And going back to the idea, YoWindow shall compute when the snow layer disappears and when to turn off the snow layer in village landscape.
I think my proposal is clear, may be implemented and will be warmly welcomed by you, guys.