Veðráttan - 02.12.1970, Page 27

1970
VEÐRÁTTAN
Ársyfirlit
Sámsstaðir.
Jarðvegshiti C°
Soil temperature
Loíthiti C°
Air temp.
Mán. Month 5 cm 10 cm ® 20 cm <o E œ 50 cm g 8 H kl.Ð 20 cm 5 cm 1 8 U fi Ss; 3s
kl. 3 kl.9 kl. 15 kl. 21 Hám. Max. Lágm Min. kl. 3 kl.9 kl. 15 kl. 21 Hám. Max. Lágn Min.
i -1.3 -1.2 -í.i -1.2 -0.9 -1.5 -1.2 -1.2 -í.i -í.i -0.9 -1.3 _ 0.5 2.1 2.5 -2.7 -3.3
ii -0.4 -0.4 -0.3 -0.4 -0.2 -0.5 -0.7 -0.7 -0.6 -0.7 -0.6 -0.7 — 0.5 1.7 0.1 -6.1 -7.2
iii -1.7 -2.0 -1.3 -1.4 -0.9 -2.1 -1.6 -1.8 -1.6 -1.5 -1.2 -2.0 — 0.4 1.7 1.6 -6.7 -7.5
IV -0.1 -0.1 0.6 0.6 0.9 -0.2 -0.6 -0.6 -0.3 -0.3 -0.2 -0.6 — 0.3 1.5 8.1 -1.9 -2.7
V 3.4 3.1 4.7 4.7 5.3 2.9 2.9 2.6 3.0 3.4 3.5 2.5 1.1 0.3 1.3 12.7 3.3 2.1
VI 8.5 8.5 10.2 10.0 10.8 8.1 8.6 8.3 8.8 9.2 9.4 8.2 7.4 4.7 2.5 15.2 5.2 4.2
VII 10.6 10.1 12.3 12.3 13.2 9.9 10.8 10.4 10.8 11.4 11.8 10.2 10.2 8.7 5.8 16.8 4.3 3.4
VIII 11.3 11.0 12.1 12.1 12.6 10.8 11.6 11.2 11.5 11.8 12.0 11.1 11.1 10.1 7.6 16.3 6.6 5.8
IX 7.6 7.3 8.2 8.2 8.6 7.2 8.1 7.8 8.0 8.2 8.4 7.7 8.3 8.8 8.0 13.5 2.6 1.4
X 4.4 4.1 4.5 4.4 5.0 3.9 4.8 4.7 4.8 4.8 5.3 4.4 5.4 6.8 7.3 7.2 -0.3 -1.1
XI -0.4 -0.4 -0.4 -0.4 -0.2 -0.5 -0.1 -0.1 0.0 -0.1 0.0 -0.2 — 2.9 5.2 2.8 -4.3 -5.2
XII -0.4 -0.4 -0.4 -0.4 -0.1 -0.6 -0.2 -0.2 -0.2 -0.2 0.0 -0.4 — 1.0 2.2 4.1 -3.4 -4.0
Húmarks- og lágmarkshiti i loíti var mœldur kl. 9.
Hámarks- og lágmarkshlti í 5 og 10 cm dýpt var lesinn af hitaritum og skipt milli sólarhringa kl. 21.
B. Aðrar hitamælingar - Other temperature measurements.
Sólland, Reykjavík.
Gróðurlaus reltur Bare soil Grasreitur i skjólbelti Grass covered sheltered plot
Jarðvegshiti C° Lofth. C°
Soil temperature Air temp.
Jarðvegshiti C°
Soil temperature
Lofthiti C°
Air temp.
5 cm 10 cm 20 cm 20 cm 5 cm 10 cm 20 cm 20 cm 5 cm
Mán. 18 á« I8 á< É c gð i* 18 g< I 8 g« I 8 ii 18 g«- g«
Month SJS WÍ5 3s ws 3i W S 3§ 3§ W 53 35 WK 35 35
i 2.1 -3.6 — — — — 1.9 -3.8 -5.2
ii — — — — — — 0.9 -8.5 — — — — — — 0.5 -8.2 -9.7
iii — — — — — — 1.7 -6.3 — — — — — — 1.7 -6.5 -8.0
IV 6.2 -1.4 — — — — — — 7.5 -1.4 -2.6
V 10.3 3.1 — — — — — — 11.6 2.8 1.9
VI 11.9 7.2 10.0 7.7 8.4 7.9 12.8 5.6 12.0 8.6 10.3 8.9 9.4 8.2 14.4 5.5 4.3
VII 13.8 6.7 11.9 8.0 10.2 8.8 13.9 3.2 14.4 9.7 12.9 9.7 11.9 9.9 15.8 2.7 0.9
VIII 12.6 6.9 11.2 8.5 10.4 9.3 13.9 6.8 13.2 10.4 12.2 9.0 11.8 10.5 15.1 6.7 5.6
IX 9.0 3.4 7.9 5.1 7.4 6.4 11.2 3.4 9.0 6.9 8.7 6.1 8.7 7.5 12.5 3.1 1.2
X 4.7 2.0 4.4 1.6 4.7 3.7 6.5 -0.5 5.1 3.8 5.1 3.3 5.6 4.6 6.9 -0.8 -2.8
XI — — — — — — 1.9 -5.7 — — — — — — 1.8 -5.6 -7.5
XII — — — — — — 4.0 -3.3 — — — — — — 3.9 -3.5 -5.0
Lesið var af öllum mælum kl. 9.
Lágmark við jörð og jarðvegsliitamælingar a Korpúlfsstöðum.
Lágmark við jörð Jarðvegshltamælingar
Maí Meðaltal Lœgst
Júní — —
Júlí 2.2 -3.0
Ágúst 6.6 0.0
September . 2.4 -5.3
Meðaltal kl.
Dag Pjöldi frostdaga 2 cm 10 cm
— — 3.8 1.0
— — 8.1 7.2
18,19 8 9.0 8.8
31 0 9.9 9.8
21 7 6.6 7.2
(123)
9 Meðaltal kl. 15
20 cm 2 cm 10 cm 20 cm
0.4 6.0 1.4 0.4
6.8 10.1 7.6 6.8
8.9 11.2 9.1 8.9
9.8 11.3 10.1 9.8
7.7 8.3 7.4 7.8