{"id":400,"date":"2017-12-29T15:23:40","date_gmt":"2017-12-29T14:23:40","guid":{"rendered":"http:\/\/igcas.antstudio.eu\/?page_id=400"},"modified":"2018-03-23T15:26:21","modified_gmt":"2018-03-23T14:26:21","slug":"earth-tides-observatories","status":"publish","type":"page","link":"https:\/\/www.ig.cas.cz\/en\/observatories\/earth-tides-observatories\/","title":{"rendered":"Earth tides observatories"},"content":{"rendered":"<p>[et_pb_section fb_built=&#8221;1&#8243; _builder_version=&#8221;3.0.47&#8243; custom_padding=&#8221;20px|0px|0px|0px&#8221;][et_pb_row custom_padding=&#8221;3px|0px|12px|0px&#8221; _builder_version=&#8221;3.0.102&#8243;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;3.0.47&#8243; parallax=&#8221;off&#8221; parallax_method=&#8221;on&#8221;][et_pb_text _builder_version=&#8221;3.0.102&#8243;]<\/p>\n<p>Use the links bellow to get information about each observatory and online data graphs.<\/p>\n<p><strong>Stations<\/strong>:\u00a0<strong style=\"font-size: 16px;\"><a href=\"pribram\/\">P\u0159\u00edbram<\/a> &#8211; <a href=\"skalna\/\">Skaln\u00e1<\/a> &#8211; <a href=\"jezeri\/\">Jeze\u0159\u00ed<\/a> &#8211; Lazec<\/strong><\/p>\n<p><strong style=\"font-size: 16px;\"><a href=\"http:\/\/telis.ig.cas.cz\/\">Data available here<\/a>.<\/strong><\/p>\n<p>[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row custom_padding=&#8221;0px|0px|29.15px|0px&#8221; _builder_version=&#8221;3.0.47&#8243; background_size=&#8221;initial&#8221; background_position=&#8221;top_left&#8221; background_repeat=&#8221;repeat&#8221;][et_pb_column type=&#8221;2_3&#8243; _builder_version=&#8221;3.0.47&#8243; parallax=&#8221;off&#8221; parallax_method=&#8221;on&#8221;][et_pb_text _builder_version=&#8221;3.0.105&#8243;]Our tidal observatories, equipped with high resolution tiltmeters ASNS, are focused on different targets.<\/p>\n<p>The principal observatory in P\u0159\u00edbram has a&nbsp;very good location in a&nbsp;deep abandoned mine, at a&nbsp;depth of 90&nbsp;m. Various types of tiltmeters are tested for mutual correlation and trends of observed tilts. Occasionally the data is compared with seismological and gravimetric records.<\/p>\n<p>The Skaln\u00e1 observatory in the seismoactive region of western Bohemia provides tilt data for correlation<br \/>\nwith earthquake activity and groundwater variations. The observatory was established in the old cellar of a&nbsp;nearby castle. Despite there being quite strong thermodynamic noise, and precipitation impact, we could detect signals related to earthquake swarms.<\/p>\n<p>The third observatory Jeze\u0159\u00ed is located in a&nbsp;horizontal gallery excavated into a&nbsp;rock massif at the edge of an enormous open pit mine. The mining affected the stability of the mountain slopes and the observations are focused on the control of the massif tilting. The observations are supported by the industry (coal mining company). We have observed significant signals before and during landslide activity when the surface layer on the slope slides down into the open mine. At the same time that data is important for the castle built right above the gallery.<\/p>\n<p>The data is presented on the <a href=\"http:\/\/www.czechgeo.cz\/\">CzechGeo-EPOS<\/a> web page from the Institute of Geophysics. Selected data will be provided to the Earth Tide world database once it is started at Strasbourg University in France.<\/p>\n<p>&nbsp;<br \/>\n[\/et_pb_text][\/et_pb_column][et_pb_column type=&#8221;1_3&#8243; _builder_version=&#8221;3.0.47&#8243; parallax=&#8221;off&#8221; parallax_method=&#8221;on&#8221;][et_pb_image src=&#8221;https:\/\/www.ig.cas.cz\/wp-content\/uploads\/2018\/02\/pribram_naklony_600.jpg&#8221; _builder_version=&#8221;3.0.99&#8243;][\/et_pb_image][et_pb_text _builder_version=&#8221;3.0.99&#8243;]<strong>Contact:<\/strong><br \/>\nJan Mrlina<br \/>\nInstitute of Geophysics<br \/>\nBo\u010dn\u00ed II\/1401, 14131 Prague 4<br \/>\njan@ig.cas.cz<br \/>\n[\/et_pb_text][\/et_pb_column][\/et_pb_row][\/et_pb_section]<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Use the links bellow to get information about each observatory and online data graphs. Stations:\u00a0P\u0159\u00edbram &#8211; Skaln\u00e1 &#8211; Jeze\u0159\u00ed &#8211; Lazec Data available here.Our tidal observatories, equipped with high resolution tiltmeters ASNS, are focused on different targets. The principal observatory in P\u0159\u00edbram has a&nbsp;very good location in a&nbsp;deep abandoned mine, at a&nbsp;depth [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":3827,"parent":392,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_et_pb_use_builder":"on","_et_pb_old_content":"","_et_gb_content_width":"","footnotes":""},"categories":[],"tags":[],"class_list":["post-400","page","type-page","status-publish","has-post-thumbnail","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.9 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Earth tides observatories - Geofyzik\u00e1ln\u00ed \u00fastav Akademie v\u011bd \u010cR, v.v.i.<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.ig.cas.cz\/en\/observatories\/earth-tides-observatories\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Earth tides observatories - Geofyzik\u00e1ln\u00ed \u00fastav Akademie v\u011bd \u010cR, v.v.i.\" \/>\n<meta property=\"og:description\" content=\"Use the links bellow to get information about each observatory and online data graphs. Stations:\u00a0P\u0159\u00edbram - Skaln\u00e1 - Jeze\u0159\u00ed - Lazec Data available here.Our tidal observatories, equipped with high resolution tiltmeters ASNS, are focused on different targets. 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