Ground based weather radar at its best

Who is then sponsoring this site: http://www.radareu.cz ?
Up to date radar data and no adds, not even a single banner

Robin_253 wrote:

Up to date radar data and no adds, not even a single banner

Up to date not quite. Checking right now (0820z) the last available pic is 0800z.

Apart, I wonder what their sources are. The pic I saw at 0800z does not fully correspond with other coverage I have.

There are various radar sites around Europe and if you want to put in some time into writing some code you could collect the pixels and re-map them onto a European map. I reckon that’s what this .cz site (which has come up before e.g. here) does. In fact that site came up even earlier – here and the data source is suggested there

If such a feed could be georeferenced it would be quite useful. This is what ADL do but they get the real digital data AFAIK, not images which need joining up and remapping.

Sebastian_G wrote:

Radar composites are compositions of dozens and in some case over hundred radar stations operated in different countries. All their data must be measured which can take several minutes if multiple sweeps at different angles are done.

I see your point regarding composite radar images. But the thing is that most single radar images (of 1 station), still only offer a 10 minute refresh rate. I think that’s just down to archaic systems.

JasonC wrote:

No, there is a vast amount of processing that takes place on the data before it is distributed. It is not a sweep of a single radar, it is typically a composite picture of several including different slant angles. Processing is used to make it a fair view of the space covered. Your 512×512 png is derived from a very large complex data set.

So am I to assume that the radar is sweeping continually for 10 minutes at all sorts of different angles and frequencies to generate one image each time? My aircraft radar completes a single sweep of a third of the sky in a few seconds covering up to 100nm+, with an altitude band of probably around 100,000 feet at that point. Granted the accuracy and sensitivity isn’t quite there, but we’re talking about an small airborne radar. Surely the professionals with their massive white domes can do much better, much quicker…?

I have merged many ADL/Golze related threads into one – here