Expected Download Speeds from arlftp

Post links to publicly available repositories of HYSPLIT formatted meteorological data. Include links to documentation describing the data coverage area, time period, and variables within the data set.
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sajjan
Posts: 1
Joined: June 23rd, 2020, 5:26 pm
Registered HYSPLIT User: Yes

Expected Download Speeds from arlftp

Post by sajjan »

Hi,
I've been trying to download some NAM archive data from the ftp site but found my download speeds from the server are really slow (>400KB/s). My connection does not seem to be the issue as I've tried downloading the files both on wired connection on a remote hpc cluster as well as my personal wifi and got similar speeds.

I was wondering if this low speed is expected or is it due to the current HYSPLIT workshop using most of the bandwidth on arl's end? If it's the latter, should download speeds be back to normal when it's over?

Thank you,
Sajjan
barbara.stunder
Posts: 424
Joined: November 9th, 2012, 4:23 pm
Registered HYSPLIT User: Yes

Re: Expected Download Speeds from arlftp

Post by barbara.stunder »

It may be the workshop. Please try again in a day or two.
McP82
Posts: 18
Joined: November 29th, 2019, 4:38 am
Registered HYSPLIT User: No

Re: Expected Download Speeds from arlftp

Post by McP82 »

It's strange, I sometimes get downloads speeds lower than 400 kbps from arlftp, and sometimes, the speed is as expected, in the 4 to 8 mbps range. Is there a reason for that? Are there "rush hours" for the server I should avoid? This happened without fluctuations coming from my Internet access, of course.
barbara.stunder
Posts: 424
Joined: November 9th, 2012, 4:23 pm
Registered HYSPLIT User: Yes

Re: Expected Download Speeds from arlftp

Post by barbara.stunder »

Try to avoid roughly 07-10 UTC.
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