Jökull - 01.12.1972, Page 58

Relative importance of heat sources, calculated and measured ablation and a summary of mean values for climatic elements
Hlutur orkuþátta í leysingu, reiknuð og meeld leysmg ásamt. nokkrum veðurþáttum
Wind- speed Vind- hraði m/s 2.7 2.4 3.7 5.7 3.4 3.2 3.3 3.2
Vapor pressure Eimþrýst- ingur mb 4.7 5.8 8.3 7.3 6.9 6.5 6.7 6.6
Air temp- erature Lofthiti °C 4.7 3.8 6.3 6.0 2.9 3.5 oó
Cloud amount Skýja- magn Octas 8. hlutar 0.5 3.3 6.6 5.5 4.9 5.9 4.4 5.5
Leysing squivalent Measured Mœlt 6.8 31.2 58.8 20.9 6011
Ablation cm water < Calculated Reiknað 6.3 28.5 55.4 24.5 O r—i
Evapora- tion Upp- gufuti % 2.6 0.9 0 0 o 40 45 43
Condensa- tion Varmastr. v. loftraka % 0 6.0 17.7 24.1 16.2
Sensible heat Varmastr. v. lofthita % 34.2 19.7 35.0 41.9 32.5
Net radiation balance Geislun % 63.2 73.4 47.3 33.6 51.3 60 55 57
Period Tímabil July 1968 2-5 July 1968 1-15 July 1968 16-31 August 1968 1—5 and 8 Obs. period 1968 Athugunartími July 1967 4-31 August 1967 1-18 Obs. period 1967 A thugunartimi
JÖKULL 22. ÁR
56