{"id":314,"date":"2026-06-24T11:32:45","date_gmt":"2026-06-24T03:32:45","guid":{"rendered":"http:\/\/wp.rungobag.cn\/index.php\/2026\/06\/24\/show-hn-submarius-global-water-clarity-for-divers\/"},"modified":"2026-06-24T11:32:45","modified_gmt":"2026-06-24T03:32:45","slug":"show-hn-submarius-global-water-clarity-for-divers","status":"publish","type":"post","link":"https:\/\/wp.rungobag.cn\/index.php\/2026\/06\/24\/show-hn-submarius-global-water-clarity-for-divers\/","title":{"rendered":"Show HN: Submarius \u2013 Global water clarity for divers"},"content":{"rendered":"<p>Submarius started as just a dashboard for diving conditions, but I quickly realized that there is simply no API for water clarity, nor even a simple way to calculate it. Divers call it viz, and it is one of the most consequential factors for a diving experience. So I dove the viz rabbit-hole. I landed on a state-augmented ensemble kalman filter. More details on the \/clarity page. My question for the HN audience is if anyone knows of a better way of doing this? There is a ton of satellite data to&#8230;<\/p>\n<p><a href=\"https:\/\/submarius.com\">\u67e5\u770b\u539f\u6587 \u2192<\/a><\/p>\n<hr>\n<p><small>\u6765\u6e90\uff1aHacker News \u00b7 RSS \u91c7\u96c6<\/small><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Submarius started as just a dashboard for diving condit [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"ai_generated_summary":"","wpai_meta_description":"","footnotes":""},"categories":[7],"tags":[],"class_list":["post-314","post","type-post","status-publish","format-standard","hentry","category-tech"],"_links":{"self":[{"href":"https:\/\/wp.rungobag.cn\/index.php\/wp-json\/wp\/v2\/posts\/314","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/wp.rungobag.cn\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/wp.rungobag.cn\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/wp.rungobag.cn\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/wp.rungobag.cn\/index.php\/wp-json\/wp\/v2\/comments?post=314"}],"version-history":[{"count":0,"href":"https:\/\/wp.rungobag.cn\/index.php\/wp-json\/wp\/v2\/posts\/314\/revisions"}],"wp:attachment":[{"href":"https:\/\/wp.rungobag.cn\/index.php\/wp-json\/wp\/v2\/media?parent=314"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/wp.rungobag.cn\/index.php\/wp-json\/wp\/v2\/categories?post=314"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/wp.rungobag.cn\/index.php\/wp-json\/wp\/v2\/tags?post=314"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}