{"action":"created","issue":{"url":"https://api.github.com/repos/IPGP/webobs/issues/1","repository_url":"https://api.github.com/repos/IPGP/webobs","labels_url":"https://api.github.com/repos/IPGP/webobs/issues/1/labels{/name}","comments_url":"https://api.github.com/repos/IPGP/webobs/issues/1/comments","events_url":"https://api.github.com/repos/IPGP/webobs/issues/1/events","html_url":"https://github.com/IPGP/webobs/issues/1","id":345844924,"node_id":"MDU6SXNzdWUzNDU4NDQ5MjQ=","number":1,"title":"Filtering option for SefraN","user":{"login":"claudiodsf","id":1390993,"node_id":"MDQ6VXNlcjEzOTA5OTM=","avatar_url":"https://avatars0.githubusercontent.com/u/1390993?v=4","gravatar_id":"","url":"https://api.github.com/users/claudiodsf","html_url":"https://github.com/claudiodsf","followers_url":"https://api.github.com/users/claudiodsf/followers","following_url":"https://api.github.com/users/claudiodsf/following{/other_user}","gists_url":"https://api.github.com/users/claudiodsf/gists{/gist_id}","starred_url":"https://api.github.com/users/claudiodsf/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/claudiodsf/subscriptions","organizations_url":"https://api.github.com/users/claudiodsf/orgs","repos_url":"https://api.github.com/users/claudiodsf/repos","events_url":"https://api.github.com/users/claudiodsf/events{/privacy}","received_events_url":"https://api.github.com/users/claudiodsf/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"assignees":[],"milestone":null,"comments":1,"created_at":"2018-07-30T16:54:45Z","updated_at":"2018-08-01T00:51:11Z","closed_at":null,"author_association":"MEMBER","body":"Issue #1 -- That's an honor!\r\n\r\nWith more and more broadband station deployed to detect and characterize both large regional and small local earthquakes, it would be very important to have a filtering option for the SefraN visualization.\r\n\r\nFor instance, we have a WebObs installation in Southern Italy (project [INSIEME](https://www.fdsn.org/networks/detail/3F_2016/)) to study natural and induced microseismicty.\r\n\r\nSearching for microearthquakes on the unfiltered SefraN is challenging or just impossible when the microseismic noise dominates.\r\n"},"comment":{"url":"https://api.github.com/repos/IPGP/webobs/issues/comments/409413287","html_url":"https://github.com/IPGP/webobs/issues/1#issuecomment-409413287","issue_url":"https://api.github.com/repos/IPGP/webobs/issues/1","id":409413287,"node_id":"MDEyOklzc3VlQ29tbWVudDQwOTQxMzI4Nw==","user":{"login":"beaudu","id":16031598,"node_id":"MDQ6VXNlcjE2MDMxNTk4","avatar_url":"https://avatars1.githubusercontent.com/u/16031598?v=4","gravatar_id":"","url":"https://api.github.com/users/beaudu","html_url":"https://github.com/beaudu","followers_url":"https://api.github.com/users/beaudu/followers","following_url":"https://api.github.com/users/beaudu/following{/other_user}","gists_url":"https://api.github.com/users/beaudu/gists{/gist_id}","starred_url":"https://api.github.com/users/beaudu/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/beaudu/subscriptions","organizations_url":"https://api.github.com/users/beaudu/orgs","repos_url":"https://api.github.com/users/beaudu/repos","events_url":"https://api.github.com/users/beaudu/events{/privacy}","received_events_url":"https://api.github.com/users/beaudu/received_events","type":"User","site_admin":false},"created_at":"2018-08-01T00:51:11Z","updated_at":"2018-08-01T00:51:11Z","author_association":"MEMBER","body":"in addition, there is an experimental \"high-pass filter like\" option in SEFRAN3.CHANNEL_CONF file available since 2014 release but documented only in the source code sefran3.m.\r\n\r\nTo remove low frequencies in a channel, 6 options are available, all apply to the full 1-minute signal :\r\n- **median**: removes median value (default)\r\n- **trend**: removes linear trend\r\n- **sp1**: removes a spline fitting based on 61-point cubic interpolation (1s)\r\n- **sp2**: removes a spline fitting based on 31-point cubic interpolation (2s)\r\n- **sp5**: removes a spline fitting based on 13-point cubic interpolation (5s)\r\n- **sp10** : removes a spline fitting based on 7-point cubic interpolation (10s)"}}
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