Fróðskaparrit - 01.01.1996, Síða 85

89
Climatic Data and Faroese Agriculture
Peder T. Haahr
Royndarstøðin, FR-410 Kollafjørður, Faroe Islands
Úrtak
Vísindaligar staðroyndir av veðurlagnum sýna, at neyvt
samband er ímillum tær og tað, sum fæst butur úr før-
oyska landbúnaðinum; tær sýna eisini, at tær hava virði,
við tað at tær í ávísan mun boða frá, hvussu gróðurin fer
at hilnast.
Veðurlagið er ógvuliga skiftandi á hesum heldur lítla
oyggjalandsøki, og broytingamar ár undan ári eru stórar
- sum staðroyndirnar úr Kollafirði sýna. Hetta vísir seg
eisini aftur í skurðinum, sum sýnir eins stórar broytingar
í úrtøkuni. Hetta er ikki at undrast á, hava vit í huga, at
Føroyar liggja á tí norðara markinum fyri meginpartin-
um av búnaðargrøði. Men tá ið nú soleiðis er, kunnu vís-
indaligar staðroyndir av veðurlagnum møguliga verða
nýttar til at boða frá, hvat ið vit kunnu vænta okkum av
búnaðarskurði.
Summary
Local climatic data are shown to be closely connected
with yields in Faroese farming and agriculture and to
have a certain predictive value.
The variation in climate over the rather small island
area is large and the year-to-year variation - as shown
by data from Kollafjørður - is high. This is also mirror-
red in the crops, which shows similar large variation in
yields. This is not surprising, the Faroes being situated
near the northem limit for most agricultural crops. How-
ever, this is being the case, local climatic data could
possibly be used for predictive purpose as concems agri-
cultural yields.
Introduction
Measurements and recording of climatic
condition have been carried out for very
long time and in many locations in the
world.
Apart from the historical value the re-
cords enable us to see variations and trends
over longer periods of time.
Today the many discussions on ozone,
C02 content in the atmosphere and the ex-
pectations of global temperature increase
of 2,5°C. over the next 100 years are very
actual in relation to climatic records.
Faroese climatic data
Climatic records for the Faroes are avail-
able as far back as before the year 1900
(Danish Meteorological Institute). Recent
data are published in the yearly reports
from the Agric. Research Station, Hoyvík
(from 1921). These records show a large
variation in rainfall for different parts of the
island area - plus the annual precipitation
for Hvalvík (Streymoy) and Klaksvík
(Borðoy) is over 3.000 m.m., while Sandoy
and Suðuroy only recieve maximum 1.100
m.m. (Annual rep. A.R.S. Hoyvík).
The total rainfall is 2-3 times more than
is needed for the agricultural crops (Ander-
sen, 1961). Cultivation and harvest are both
Fróðskaparrit 44. bók 1996: 89-93