Hagskýrslur - Hagtöluárbækur - 01.01.1984, Page 18

Hagskýrslur - Hagtöluárbækur - 01.01.1984, Page 18
2 Landið 1-4. HELSTU AR. Principal rivers. Vatns- falla- teg- und 2) Vatnasvið,km2 Lengd fra upp- tökum tilósa, km,3) Meðal- A frenn- sli, Vs af km2 Mesta flóð.er mælst hefur, m2/s Ár^ og viðmiðunarstaðir/ rivers anð points of observation Alls Jökull renn- sli, m 3/s Aðalvatnsföll/main rivers Jökulsá á Fjöllum, Axarfjörður 1 2 3 4 5 6 7 J+L+D 7750 1400 206 212* 27* " Dettifoss J+L+D 7000- 1400 184 26* 1720 Þjórsá, Þjórsárós D+J+L 7530 1200 230 387* 51* " Urriðafoss D+J+L 7200 1200 367 51 3500 " Búrfell D+J+L 6380 1200 311 49 Ölfusá/Hvftá, óseyri L+D+J 6100 690 185 400* 65* Ölfusá, Selfoss L+D+J 5760 690 376 65 2520 Hvftá, Gullfoss D+J+S+L 2000 420 109 55 2000 Skjálfandafljót, Skiálfandi D+L+J 3860 140 178 95* 25* " Goðafoss D+L+J 3420 140 82 24 930 Jökulsá á Dal, Héraðsflói J+D 3700 900 150 205* 55* " Hjarðarhagi J+D 2800 900 152 54 1200 Héraðsvötn, Skagafjörður D+J 3650 220 130 108* 30* Eystri-Jökulsa, Skatastaðir D+J+L 1100 160 39 36 330 Hvftá, Borgarfjöiður D+L+J 3550 360 117 170* 48* 2250* " Kljáfoss L+J 1685 360 85 50 510 Lagarfljót, Héraðsflói D+S+J 2900 190 140 135* 47* " Lagarfoss D+S+J 2800 190 129 46 950 Jökúlsá f Fljótsdal, Hóll D+J 575 175 27 46 430 Kúðafljót, Kúðaós Skaftá, Skaftárdalur J+L+D 2400* 600 115 220* 92* J+L 1385 400 122 88 1500 Blanda, Blönduós D+J 2370 200 125 60* 25* " Guðlaugsstaðir D+J 1690 200 42 25 880 Laxá f S-Þmg., Skjálfandi L+D 2150 - 93 60 28 290* " Brúar L 1550 - 43 28 191 Hólsá, Rangársandur L 1860 10 71 100* 54* Ytri-Rangá, Árbæjarfoss L 890 - 50 56 360 Fnjóská, Eyjafjörður D 1310 - 117 43* 33* " ofan Árbugsár D 1145 - 36 32 470 Eyjafjarðará, Eyjafjörður D 1300 - 60 45* 35* 25ÓÓ4) Markarfljót, Kr’osssandur J+D+L 1200 250 100 85* 70* Skeiðará, Skaftafell J 1200 1100 30 110 90* 72005) Hnausakvfsl, Húnaós D+S 1170 - 74 26* 22* Vatnsdalsá, Forsæludalur D 450 - 9 20 210 Vfðidalsá, Biargaós D+S 1130 - 91 29* 26* Hofsá, Vopnafjörður D 1100 - 85 44* 40* . . . Þverár/tributary rivers Tungnaá, Sultartangi Kaldakvfsl, ÞÓristungur L+J+D 3470 670 129 175 50 1020 J+L+D 1740 460 109 64 37 " Þórisvatn 6) J+L+D 1450 460 47 32 Kreppa, Kreppubrú J+D 1100* 480 71 42 38* 800 Sog, Ljósafoss L+S 1050 53 108 103 3787) í!:)Ekki nákvæm tala/not exact figure. 1) Raðað eftir stærð vatnasviðs. Af ám ótöldum hér er mest rennsli fJökulsá á Breiðamerkursandi, 145^m-Vs. 2)fjöð eftir mikilvægi: D = dragá,L= lindá, J = jökulá, S = stöðuvatn jafnar rennsli. 3)Þverár: lengd frá upptökum að aðalvatnsfalli. 4)Við- burðaflóð/geological event. 5) Grímsvatnahlaup 1954. Á sama tíma var 3300 m3/s hlaupvatnvest- ur á Skeiðarársandi, svo að alls var hlaupið 10500 m^/s - 20'ýo. 6) Þessum hlutaKöldukvfslar hefur verið veitt um Þórisvatn til Sigöldu. 7) Mannvirkniflóð/man-made flood. Headings: 1: river type, descending order of importance: D = direct runoff river.L = spring-fed river, J = glacier river, S = a lake affects the flow. 2-3: Drainage area, km2. 2:Total. 3:Glacier. 4: Length from source to mounth, km. For tributary rivers length from source to main river. 5: Dis- charge, m3 per second. 6: Drainage, litres per second per km2. 7: Largest flood measured, m2 per second. Tafla nr. 1-5, sem skv. töluröðinni Tafla 1-6, sem skv. töluröðinni hefði átt hefði átt að koma hér, er á bls. 5 að koma næst hér á eftir, er á bls. 6
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