{"id":240,"date":"2018-06-23T00:56:01","date_gmt":"2018-06-22T22:56:01","guid":{"rendered":"https:\/\/www.enviblog.cz\/blog\/?p=240"},"modified":"2018-10-06T10:43:19","modified_gmt":"2018-10-06T08:43:19","slug":"bilancni-mereni-na-dyjsko-mlynskem-nahonu","status":"publish","type":"post","link":"https:\/\/www.enviblog.cz\/blog\/2018\/06\/23\/bilancni-mereni-na-dyjsko-mlynskem-nahonu\/","title":{"rendered":"Bilan\u010dn\u00ed m\u011b\u0159en\u00ed na Dyjsko-ml\u00fdnsk\u00e9m n\u00e1honu"},"content":{"rendered":"

Je posledn\u00ed jarn\u00ed den, vedro k padnut\u00ed a t\u0159i t\u00fdmy hydrolog\u016f se vyd\u00e1vaj\u00ed m\u011b\u0159it pr\u016ftoky do m\u00edst, kde se voda st\u00e1v\u00e1 st\u00e1le \u017e\u00e1dan\u011bj\u0161\u00edm artiklem. Budou se dnes pohybovat v \u00fazem\u00ed mezi Znojmem, Hru\u0161ovany nad Jevi\u0161ovkou a rakousk\u00fdm Laa an der Thaya, kde \u0159eka Dyje a lidskou rukou vybudovan\u00fd Dyjsko-ml\u00fdnsk\u00fd n\u00e1hon tvo\u0159\u00ed n\u011bco jako hydrologickou osu krajiny. Dyjsko-ml\u00fdnsk\u00fd n\u00e1hon se od sv\u00e9ho mate\u0159sk\u00e9ho toku odpojuje v moravsk\u00fdch Krhovic\u00edch, po p\u0159ibli\u017en\u011b deseti kilometrech t\u011bsn\u011b m\u00edj\u00ed Jaroslavick\u00e9 rybn\u00edky a zhruba po stejn\u00e9 vzd\u00e1lenosti u Laa an der Thaya vt\u00e9k\u00e1 do Rakouska, aby se pak asi 3 km severov\u00fdchodn\u011b od Hevl\u00edna op\u011bt na moravsk\u00e9 stran\u011b p\u0159idal k Dyji. A proto\u017ee mno\u017estv\u00ed vody tekouc\u00ed t\u00edmto kan\u00e1lem slou\u017e\u00edc\u00edm p\u0159edev\u0161\u00edm k zavla\u017eov\u00e1n\u00ed zdej\u0161\u00ed zem\u011bd\u011blsky na maximum vyu\u017e\u00edvan\u00e9 p\u016fdy je sv\u00e1z\u00e1no \u010desko-rakouskou smlouvou, konaj\u00ed se spole\u010dn\u00e1 m\u011b\u0159en\u00ed hydrolog\u016f z \u010cHM\u00da a jejich rakousk\u00fdch koleg\u016f z odd\u011blen\u00ed hydrologie \u00fa\u0159adu dolnorakousk\u00e9 vl\u00e1dy pravideln\u011b jednou do roka.<\/p>\n

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Jen\u017ee leto\u0161n\u00ed jaro jakoby op\u011bt cht\u011blo l\u00e1mat rekordy sucha, proto bylo na z\u00e1klad\u011b \u010desko-rakousk\u00e9ho jedn\u00e1n\u00ed dohodnuto spole\u010dn\u00e9 m\u011b\u0159en\u00ed i s kolegy z Povod\u00ed Moravy, kte\u0159\u00ed budou m\u011b\u0159it pr\u016ftoky na zdej\u0161\u00edch „sv\u00fdch“ stanic\u00edch tak, aby se jednoduch\u00fdmi kupeck\u00fdmi po\u010dty dalo zbilancovat mno\u017estv\u00ed vody v Dyji a Dyjsko-ml\u00fdnsk\u00e9m n\u00e1honu na r\u016fzn\u00fdch m\u00edstech jejich tok\u016f.<\/p>\n

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Krhovick\u00fd jez. Na sn\u00edmku vp\u0159edu si to voda sm\u011b\u0159uje ke stavidlu, kter\u00e9 odd\u011bluje Dyji od Dyjsko-ml\u00fdnsk\u00e9ho n\u00e1honu. Vzadu je vid\u011bt stavidlo k zavla\u017eovac\u00edmu kan\u00e1lu Krhovice-Hevl\u00edn. O vodu zna\u010dn\u011b ochuzena pokra\u010duje \u0159eka Dyje pod jezem.<\/figcaption><\/figure>\n
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Za\u010d\u00e1tek Dyjsko-ml\u00fdnsk\u00e9ho n\u00e1honu v Krhovic\u00edch.<\/figcaption><\/figure>\n
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Dyje pod Krhovick\u00fdm jezem, pr\u016ftok 0.365 m3<\/sup>\/s.<\/figcaption><\/figure>\n

Dyjsko-ml\u00fdnsk\u00fd n\u00e1hon se odpojuje z prav\u00e9ho b\u0159ehu Dyje t\u011bsn\u011b nad Krhovick\u00fdm jezem. Zde kolegov\u00e9 z Povod\u00ed Moravy zm\u011b\u0159ili pr\u016ftok n\u00e1honem 1.73 m3<\/sup>\/s. Z lev\u00e9ho b\u0159ehu Dyje ale odbo\u010duje dal\u0161\u00ed in\u017een\u00fdrsk\u00e9 d\u00edlo – zavla\u017eovac\u00ed kan\u00e1l Krhovice-Hevl\u00edn, dne\u0161n\u00ed pr\u016ftok 1.52\u00a0m3<\/sup>\/s. No a kolik zb\u00fdv\u00e1 na chudinku Dyji? Pouh\u00fdch 0.365\u00a0m3<\/sup>\/s! Ano, i tento pr\u016ftok je spr\u00e1vn\u011b zm\u011b\u0159en, proto\u017ee kdy\u017e se\u010dteme v\u0161echny t\u0159i v\u00fd\u0161e uveden\u00e9 cifry, d\u00e1 n\u00e1m to hodnotu 3.62\u00a0m3<\/sup>\/s, co\u017e p\u0159esn\u011b odpov\u00edd\u00e1 odtoku ze znojemsk\u00e9 p\u0159ehrady. Tolik krhovick\u00fd uzel…<\/p>\n

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LG Dyj\u00e1kovice na Dyjsko-ml\u00fdnsk\u00e9m n\u00e1honu.<\/figcaption><\/figure>\n
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Z\u00e1vlahy u Dyj\u00e1kovic jedou naplno…<\/figcaption><\/figure>\n

A co jsme mezit\u00edm d\u011blali my? Na na\u0161\u00ed stanici v bl\u00edzkosti obce Dyj\u00e1kovice (LG Dyj\u00e1kovice) jsme m\u011b\u0159ili pr\u016ftok Dyjsko-ml\u00fdnsk\u00fdm n\u00e1honem. \u010cesko-rakousk\u00e1 \u00famluva stanov\u00ed, \u017ee pr\u016ftok m\u011b\u0159\u00edme my i na\u0161i rakou\u0161t\u00ed kolegov\u00e9, to asi abychom se navz\u00e1jem hl\u00eddali a m\u011bli si o \u010dem pov\u00eddat… Stejn\u011b tak i na rakousk\u00e9 stran\u011b na LG Blaustauden. A v\u00fdsledky? V Dyj\u00e1kovic\u00edch jsme se v podstat\u011b shodli a kdy\u017e na\u0161e m\u011b\u0159en\u00ed spravedliv\u011b zpr\u016fm\u011brujeme, d\u011bl\u00e1 to 1.06\u00a0m3<\/sup>\/s. V Blaustaudenu je m\u011brn\u00fd profil problemati\u010dt\u011bj\u0161\u00ed, proto i na\u0161e v\u00fdsledky se li\u0161\u00ed o n\u011bco v\u00edce, ale nijak fat\u00e1ln\u011b… Pr\u016fm\u011br je 0.851\u00a0m3<\/sup>\/s. Vody v n\u00e1honu od Krhovic po toku d\u00e1le tedy logicky ub\u00fdv\u00e1, tak jak zelin\u00e1\u0159i „sosaj“…<\/p>\n

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M\u011brn\u00fd profil LG Blaustauden na akvaduktu zn\u00e1m\u00e9m jako Eiserne Bett (\u017eelezn\u00e1 postel), kter\u00fd p\u0159ev\u00e1d\u00ed vodu Dyjsko-ml\u00fdnsk\u00e9ho n\u00e1honu o t\u00e9m\u011b\u0159 4 m v\u00fd\u0161e nad tokem Pulkavy (Pulkau). N\u00e1hon i akvadukt m\u00e1 svou dne\u0161n\u00ed podobu od roku 1830, kdy se za\u010dalo s rozs\u00e1hl\u00fdmi regulacemi v\u0161ech tok\u016f v tomto \u00fazem\u00ed.<\/figcaption><\/figure>\n
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Pohled na akvadukt z koryta Pulkavy.<\/figcaption><\/figure>\n
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A toto vodn\u00ed d\u00edlo m\u00e1 na sv\u011bdom\u00ed ing. Bobr von Pulkau.<\/figcaption><\/figure>\n

Hydrologov\u00e9 z Povod\u00ed zm\u011b\u0159ili pr\u016ftok je\u0161t\u011b na sv\u00e9 stanici v Hevl\u00edn\u011b (Dyje), d\u011blalo to 1.13\u00a0m3<\/sup>\/s. A jak je mo\u017en\u00e9, \u017ee v Dyji p\u0159ibylo najednou tolik vody? Zeleninov\u00e9 l\u00e1ny v okol\u00ed zavla\u017eovac\u00edho kan\u00e1lu Krhovice-Hevl\u00edn maj\u00ed dnes asi men\u0161\u00ed spot\u0159ebu a p\u0159ebyte\u010dn\u00e1 voda se z kan\u00e1lu na n\u011bkolika m\u00edstech vrac\u00ed zp\u011bt do \u0159eky Dyje, celkem se takto vr\u00e1t\u00ed 0.765\u00a0m3<\/sup>\/s a spot\u0159ebuje 0.755 m3<\/sup>\/s.<\/p>\n

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Koryto \u0159eky by zvl\u00e1dlo pr\u016ftok mnohon\u00e1sobn\u011b vy\u0161\u0161\u00ed… Dyje v Hevl\u00edn\u011b…<\/figcaption><\/figure>\n
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…a v Tr\u00e1vn\u00edm Dvo\u0159e. Ve vod\u011b je fajn, ale je j\u00ed zatracen\u011b m\u00e1lo!<\/figcaption><\/figure>\n

A kdo to vydr\u017eel a\u017e sem, dozv\u00ed se je\u0161t\u011b, \u017ee na stanici \u010cHM\u00da v Tr\u00e1vn\u00edm Dvo\u0159e (Dyje) jsme odpoledne zm\u011b\u0159ili pr\u016ftok 1.51\u00a0m3<\/sup>\/s. Kousek nad touto stanic\u00ed se do Dyje vrac\u00ed Dyjsko-ml\u00fdnsk\u00fd n\u00e1hon, no a kdy\u017e od pr\u016ftoku v Tr\u00e1vn\u00edm Dvo\u0159e ode\u010dteme pr\u016ftok v Hevl\u00edn\u011b, dostaneme mno\u017estv\u00ed vody, kter\u00e9 n\u00e1honem doteklo a\u017e sem, tedy 0.38\u00a0m3<\/sup>\/s. To znamen\u00e1, \u017ee z Dyjsko-ml\u00fdnsk\u00e9ho n\u00e1honu bylo na jeho t\u00e9m\u011b\u0159 32 km dlouh\u00e9 trase od\u010derp\u00e1no 1.35\u00a0m3<\/sup>\/s.<\/p>\n

Tolik \u0159e\u010d such\u00fdch \u010d\u00edsel, inu pov\u00eddali jsme si o suchu… Ale jak pravil kolega… snad ty okurky budou st\u00e1t za to!<\/p>\n","protected":false},"excerpt":{"rendered":"

Je posledn\u00ed jarn\u00ed den, vedro k padnut\u00ed a t\u0159i t\u00fdmy hydrolog\u016f se vyd\u00e1vaj\u00ed m\u011b\u0159it pr\u016ftoky do m\u00edst, kde se voda st\u00e1v\u00e1 st\u00e1le \u017e\u00e1dan\u011bj\u0161\u00edm artiklem. Budou se dnes pohybovat v \u00fazem\u00ed mezi Znojmem, Hru\u0161ovany nad Jevi\u0161ovkou a rakousk\u00fdm Laa an der Thaya, kde \u0159eka Dyje a lidskou rukou vybudovan\u00fd Dyjsko-ml\u00fdnsk\u00fd n\u00e1hon tvo\u0159\u00ed n\u011bco jako hydrologickou osu […]<\/p>\n","protected":false},"author":4,"featured_media":256,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":false,"jetpack_social_options":{"image_generator_settings":{"template":"highway","enabled":false},"version":2}},"categories":[4],"tags":[50],"coauthors":[27],"class_list":["post-240","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-voda","tag-mereni","entry","has-media"],"jetpack_publicize_connections":[],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"https:\/\/www.enviblog.cz\/blog\/wp-content\/uploads\/2018\/06\/P1020077.jpg","jetpack_shortlink":"https:\/\/wp.me\/pa1A1I-3S","_links":{"self":[{"href":"https:\/\/www.enviblog.cz\/blog\/wp-json\/wp\/v2\/posts\/240","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.enviblog.cz\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.enviblog.cz\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.enviblog.cz\/blog\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/www.enviblog.cz\/blog\/wp-json\/wp\/v2\/comments?post=240"}],"version-history":[{"count":6,"href":"https:\/\/www.enviblog.cz\/blog\/wp-json\/wp\/v2\/posts\/240\/revisions"}],"predecessor-version":[{"id":259,"href":"https:\/\/www.enviblog.cz\/blog\/wp-json\/wp\/v2\/posts\/240\/revisions\/259"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.enviblog.cz\/blog\/wp-json\/wp\/v2\/media\/256"}],"wp:attachment":[{"href":"https:\/\/www.enviblog.cz\/blog\/wp-json\/wp\/v2\/media?parent=240"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.enviblog.cz\/blog\/wp-json\/wp\/v2\/categories?post=240"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.enviblog.cz\/blog\/wp-json\/wp\/v2\/tags?post=240"},{"taxonomy":"author","embeddable":true,"href":"https:\/\/www.enviblog.cz\/blog\/wp-json\/wp\/v2\/coauthors?post=240"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}