Náttúrufræðingurinn

Volume

Náttúrufræðingurinn - 2018, Page 66

Náttúrufræðingurinn - 2018, Page 66
Náttúrufræðingurinn 146 1. viðauki / Appendix 1. Geirastaðaskurður. Niðurstöður mælinga og greininga á sýnum úr Geirastaðaskurði, útfalli Mývatns. Rennsli, hitastig, leiðni og styrkur leystra efna og agna á tíma- bilinu 2000–2001. – Physical components and concentration of dissolved and suspended constituents determined in samples from the outlet of Mývatn at Geirastaðastaðaskurður during 2000–2001. Sýnanúmer Sample no. 00-A013 00-A023 00-A031 00-A044 00-A053 00-A062 00-A071 00-A080 00-A089 01-A006 01-A015 Dagsetning Date 3.3.2000 11.4.2000 8.5.2000 7.6.2000 12.7.2000 9.8.2000 14.9.2000 17.10.2000 21.11.2000 6.1.2001 3.3.2001 Tímasetning Time 13:15 11:30 19:57 15:00 17:00 16:15 15:00 15:15 14:45 10:00 09:05 Rennsli Discharge m3/sek e.m e.m e.m e.m e.m e.m e.m e.m e.m e.m e.m Vatnshiti Water temperature °C 1,2 0,0 6,0 12,3 15,7 15,5 8,3 1,4 0,6 0,9 0,5 Lofthiti Air temperature °C -8,3 -5,7 6,0 14,0 11,8 15,1 11,5 3,1 -0,9 -4,4 -15,0 pH 8,14 8,69 8,31 9,45 9,86 9,67 9,15 8,43 8,08 8,11 8,18 T ref (pH/leiðni) °C 19,1 21,9 22,6 25,0 20,7 23,4 22,4 22,9 20,6 19,4 20,0 Leiðni Conductivity µS/sm 171 139 135 158 163 177 161 159 166 159 139 SiO2 µmól/l 384 260 174 91 40 77 79 146 276 374 318 Na µmól/l 1005 779 753 879 953 1035 940 953 970 974 883 K µmól/l 40 29 28 31 34 40 37 38 39 36 35 Ca µmól/l 196 158 149 176 176 202 178 184 193 189 159 Mg µmól/l 164 147 132 154 144 165 154 156 156 159 141 Basavirkni Alkalinity µeq/l 1342 1107 1049 1190 1252 1358 1277 1246 1313 1298 1194 DIC µmól/l 1347 1062 1041 976 901 1036 1157 1227 1323 1305 1195 S-total µmól/l 185 135 142 167 143 168 158 155 175 158 123 SO4 µmól/l 204 129 147 174 163 183 162 128 149 151 119 non-SO4S µmól/l -19 6 -4 -6 -21 -15 -5 27 26 7 5 Cl µmól/l 111 104 88 101 98 111 102 95 99 91 82 F µmól/l 14,3 11,7 10,5 13,5 13,3 13,8 8,58 12,1 13,4 12,6 12,5 Hleðslujafnvægi Charge meq/l -0,11 -0,06 -0,10 -0,08 -0,06 -0,04 -0,07 0,06 -0,02 0,00 Hleðslujafnvægi Charge % 6 4 7 5 4 2 4 4 1 0 0,065 TDS1 mg/l 121 95 82 97 106 99 79 105 116 100 0,081 TDS2 mg/l 162 128 118 136 149 158 137 136 152 154 <0,133 DOC µmól/l 17 25 42 75 175 117 75 50 27 8 0,99 POC µg/l 42 482 2171 509 322 848 915 673 307 247 0,009 PON µg/l <1,5 53,1 357 74,4 37,6 140 152 37,2 46,5 0,112 C/N mól 32,7 10,6 7,10 7,98 10,0 7,05 7,02 9,61 6,21 21,3 Svifaur Susp. matter mg/l 2 6 25 8 1 6 63 12 14 2 3,15 P-total3 µmól/l 1,55 0,946 0,620 0,339 0,859 0,694 0,465 0,252 0,613 1,50 6,56 PO4-P µmól/l 1,32 0,815 0,349 0,283 0,544 0,268 0,283 0,123 0,549 1,33 0,043 NO3-N µmól/l 2,06 0,345 0,150 0,984 1,01 0,175 0,175 0,150 0,505 2,75 1,16 Frh. / Cont. 1 mælt / measured 2 reiknað / calculated 3 ICP-MS 4 Autoanalyser e.m. = ekki mælt / not measured
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