{"action":"created","issue":{"url":"https://api.github.com/repos/StrikeNP/trac_test/issues/795","repository_url":"https://api.github.com/repos/StrikeNP/trac_test","labels_url":"https://api.github.com/repos/StrikeNP/trac_test/issues/795/labels{/name}","comments_url":"https://api.github.com/repos/StrikeNP/trac_test/issues/795/comments","events_url":"https://api.github.com/repos/StrikeNP/trac_test/issues/795/events","html_url":"https://github.com/StrikeNP/trac_test/issues/795","id":332200693,"node_id":"MDU6SXNzdWUzMzIyMDA2OTM=","number":795,"title":"Improve SILHS' band-diagonal copula for vertical correlations (Trac #795)","user":{"login":"StrikeNP","id":2577059,"node_id":"MDQ6VXNlcjI1NzcwNTk=","avatar_url":"https://avatars0.githubusercontent.com/u/2577059?v=4","gravatar_id":"","url":"https://api.github.com/users/StrikeNP","html_url":"https://github.com/StrikeNP","followers_url":"https://api.github.com/users/StrikeNP/followers","following_url":"https://api.github.com/users/StrikeNP/following{/other_user}","gists_url":"https://api.github.com/users/StrikeNP/gists{/gist_id}","starred_url":"https://api.github.com/users/StrikeNP/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/StrikeNP/subscriptions","organizations_url":"https://api.github.com/users/StrikeNP/orgs","repos_url":"https://api.github.com/users/StrikeNP/repos","events_url":"https://api.github.com/users/StrikeNP/events{/privacy}","received_events_url":"https://api.github.com/users/StrikeNP/received_events","type":"User","site_admin":false},"labels":[{"id":963997231,"node_id":"MDU6TGFiZWw5NjM5OTcyMzE=","url":"https://api.github.com/repos/StrikeNP/trac_test/labels/Migrated%20from%20Trac","name":"Migrated from Trac","color":"FFFFFF","default":false},{"id":964141815,"node_id":"MDU6TGFiZWw5NjQxNDE4MTU=","url":"https://api.github.com/repos/StrikeNP/trac_test/labels/arapp@uwm.edu","name":"arapp@uwm.edu","color":"FFFFFF","default":false},{"id":963997516,"node_id":"MDU6TGFiZWw5NjM5OTc1MTY=","url":"https://api.github.com/repos/StrikeNP/trac_test/labels/clubb_src","name":"clubb_src","color":"FFFFFF","default":false},{"id":963997043,"node_id":"MDU6TGFiZWw5NjM5OTcwNDM=","url":"https://api.github.com/repos/StrikeNP/trac_test/labels/enhancement","name":"enhancement","color":"a2eeef","default":true}],"state":"open","locked":false,"assignee":null,"assignees":[],"milestone":{"url":"https://api.github.com/repos/StrikeNP/trac_test/milestones/8","html_url":"https://github.com/StrikeNP/trac_test/milestone/8","labels_url":"https://api.github.com/repos/StrikeNP/trac_test/milestones/8/labels","id":3423184,"node_id":"MDk6TWlsZXN0b25lMzQyMzE4NA==","number":8,"title":"Improve SILHS","description":null,"creator":{"login":"StrikeNP","id":2577059,"node_id":"MDQ6VXNlcjI1NzcwNTk=","avatar_url":"https://avatars0.githubusercontent.com/u/2577059?v=4","gravatar_id":"","url":"https://api.github.com/users/StrikeNP","html_url":"https://github.com/StrikeNP","followers_url":"https://api.github.com/users/StrikeNP/followers","following_url":"https://api.github.com/users/StrikeNP/following{/other_user}","gists_url":"https://api.github.com/users/StrikeNP/gists{/gist_id}","starred_url":"https://api.github.com/users/StrikeNP/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/StrikeNP/subscriptions","organizations_url":"https://api.github.com/users/StrikeNP/orgs","repos_url":"https://api.github.com/users/StrikeNP/repos","events_url":"https://api.github.com/users/StrikeNP/events{/privacy}","received_events_url":"https://api.github.com/users/StrikeNP/received_events","type":"User","site_admin":false},"open_issues":16,"closed_issues":65,"state":"open","created_at":"2018-06-13T20:03:15Z","updated_at":"2018-06-16T14:17:52Z","due_on":null,"closed_at":null},"comments":9,"created_at":"2018-06-13T23:29:06Z","updated_at":"2018-06-16T15:40:02Z","closed_at":null,"author_association":"OWNER","body":"\nThe band diagonal copula used by SILHS to represent vertical correlations is simple, but inaccurate.  Let's see if we can improve the functional form.\n\nOutline:\n\n1.  Generate 4 copulas: 1) delta-random (competitor), 2) band-diagonal (SILHS default), 3) band-diagonal-delta, and 4) Albert's creative alternative.  Write a unit test that checks whether the bivariate distribution is indeed a copula. \n\n2.  Compare all 4 to Mikhail's LES output of clouds.  Use a statistical test (e.g., Kolmogorov-Smirnov). \n\nThis paper (Larson and Schanen 2013) describes how to compute the band-diagonal copula:\n\nhttp://www.geosci-model-dev.net/6/1813/2013/gmd-6-1813-2013.html\n\n\nAttachments:\n\n[cooke_waij_1986_band_copula.pdf](https://github.com/larson-group/trac_attachment_archive/blob/master/clubb/cooke_waij_1986_band_copula.pdf)\n[kotz_vandorp_2009_band_copula.pdf](https://github.com/larson-group/trac_attachment_archive/blob/master/clubb/kotz_vandorp_2009_band_copula.pdf)\n[huard_2006_bayesian_copula_selection.pdf](https://github.com/larson-group/trac_attachment_archive/blob/master/clubb/huard_2006_bayesian_copula_selection.pdf)\n\nMigrated from http://carson.math.uwm.edu/trac/clubb/ticket/795\n```json\n{\n    \"status\": \"assigned\", \n    \"changetime\": \"2016-12-06T23:35:39\", \n    \"description\": \"\\nThe band diagonal copula used by SILHS to represent vertical correlations is simple, but inaccurate.  Let's see if we can improve the functional form.\\n\\nOutline:\\n\\n1.  Generate 4 copulas: 1) delta-random (competitor), 2) band-diagonal (SILHS default), 3) band-diagonal-delta, and 4) Albert's creative alternative.  Write a unit test that checks whether the bivariate distribution is indeed a copula. \\n\\n2.  Compare all 4 to Mikhail's LES output of clouds.  Use a statistical test (e.g., Kolmogorov-Smirnov). \\n\\nThis paper (Larson and Schanen 2013) describes how to compute the band-diagonal copula:\\n\\nhttp://www.geosci-model-dev.net/6/1813/2013/gmd-6-1813-2013.html\\n\", \n    \"reporter\": \"vlarson@uwm.edu\", \n    \"cc\": \"vlarson@uwm.edu, arapp@uwm.edu\", \n    \"resolution\": \"\", \n    \"_ts\": \"1481067339182728\", \n    \"component\": \"clubb_src\", \n    \"summary\": \"Improve SILHS' band-diagonal copula for vertical correlations\", \n    \"priority\": \"major\", \n    \"keywords\": \"\", \n    \"time\": \"2016-10-04T22:45:14\", \n    \"milestone\": \"Improve SILHS\", \n    \"owner\": \"arapp@uwm.edu\", \n    \"type\": \"enhancement\"\n}\n```\n"},"comment":{"url":"https://api.github.com/repos/StrikeNP/trac_test/issues/comments/397820519","html_url":"https://github.com/StrikeNP/trac_test/issues/795#issuecomment-397820519","issue_url":"https://api.github.com/repos/StrikeNP/trac_test/issues/795","id":397820519,"node_id":"MDEyOklzc3VlQ29tbWVudDM5NzgyMDUxOQ==","user":{"login":"StrikeNP","id":2577059,"node_id":"MDQ6VXNlcjI1NzcwNTk=","avatar_url":"https://avatars0.githubusercontent.com/u/2577059?v=4","gravatar_id":"","url":"https://api.github.com/users/StrikeNP","html_url":"https://github.com/StrikeNP","followers_url":"https://api.github.com/users/StrikeNP/followers","following_url":"https://api.github.com/users/StrikeNP/following{/other_user}","gists_url":"https://api.github.com/users/StrikeNP/gists{/gist_id}","starred_url":"https://api.github.com/users/StrikeNP/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/StrikeNP/subscriptions","organizations_url":"https://api.github.com/users/StrikeNP/orgs","repos_url":"https://api.github.com/users/StrikeNP/repos","events_url":"https://api.github.com/users/StrikeNP/events{/privacy}","received_events_url":"https://api.github.com/users/StrikeNP/received_events","type":"User","site_admin":false},"created_at":"2018-06-16T15:40:02Z","updated_at":"2018-06-16T15:40:02Z","author_association":"OWNER","body":"**Trac update on 2016/10/11 at 21:47**\n\n* vlarson@uwm.edu changed cc from \"vlarson@uwm.edu, albert.rapp@uni-ulm.de, arapp@uwm.edu\" to \"vlarson@uwm.edu, arapp@uwm.edu\"\n* vlarson@uwm.edu changed owner from \"albert.rapp@uni-ulm.de\" to \"vlarson@uwm.edu\""}}
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