Volume limitations for a single request have been set up on download mechanisms in order to guaranty good performances. The maximum amount of data you can download is 1 Gigabyte for a single request. If your single request is beyond this size, an error message will be immediately displayed: "The size of the data to download - ... Megabytes- exceeds the maximum allowed - 1024 Megabytes". You can also encounter a "proxy error 502". This error message appears when a request lasts too long.


In order to overcome the limited volume associated to a single request, you need to use multiple requests (i.e.: a loop within a script command line) hence splitting the data volume into smaller pieces at a time. For example in your script command line, you can change the temporal extraction windows. See FAQ8 How to download a large amount of met/ocean data.