Náttúrufræðingurinn

Volume

Náttúrufræðingurinn - 1964, Page 145

Náttúrufræðingurinn - 1964, Page 145
NÁTTÚRUFRÆÐ I N GURI N N 237 TAFLA II. Meðalfjöldi daga á mánuði með alhvítri jörð. Durchschnittliche Anzahl Tage mit Schneedecke (Tage pro Monat). 8 Febr. Marz April Mai Júni Júli Ágúst C/^ S O Nóv. <8 Q Allt árið Sandur í Aðaldal 22 21 19 13 3 1 7 14 17 128 Reykjahlíð 23 22 20 12 4 1 0,2 2 11 13 22 129 Grímsstaðir 26 24 23 16 4 1 0,3 3 11 17 23 148 Raufarhöfn 18 19 19 14 3 1 7 12 93 Kirkjubæjarkl. 16 14 6 3 1 0,1 1 7 13 60 Þingvellir 16 14 9 3 (0,4) 0,2 1 7 12 63 Grindavík 15 12 7 2 0,5 1 (5) 9 (52) Reykjanes 7 6 3 1 0,4 4 6 27 TAFLA III. • Arsúrkoma í millímetrum. Jahresniederschlag, mm. 1936 1937 1938 1939 1940 1941 1942 1943 1944 1945 Sandur í Aðaldal 530 526 344 528 222 396 471 394 Reykjahlíð — — 355 224 312 182 365 342 234 422 Grímsstaðir 372 266 342 241 468 — 408 524 343 412 Raufarliöfn 521 528 681 294 579 435 807 855 609 705 Kirkjubæjarkl. 1409 2134 1529 1932 1742 1676 1657 1957 1648 1986 Þingvellir — 1215 1401 1225 1290 1172 1175 1103 1260 1264 Grindavlk 1065 1077 1100 1043 1101 889 1226 1289 — 1221 Reykjanes 1017 880 868 839 857 781 1194 1051 921 — Vorið 1951 kom seint e£tir snjóþungan vetur um land allt. Það vor tók ég eftir dauðum blettum í mosanum á Hellisheiðinni; þeir voru þó horfnir árið eftir. Það hafa sennilega myndazt hliðar- sprotar(?). Þetta er svolítill mælikvarði á, hve mikinn snjó gambur- mosinn þolir.
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