KAZALCI OKOLJA

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The indicator shows the movement of average annual air temperatures and average annual precipitation in selected areas across Slovenia in the period 1961-2007.


Charts

Figure PS04-1: Mean annual temperature at individual measuring sites
Sources: 

Meteorological Office, Environmental Agency of the Republic of Slovenia, 2008

Show data
1961 1962 1963 1964 1965 1966 1967 1968 1969 1970
Kredarica °C -0.5 -2.7 -2.1 -1.2 -2.6 -1.8 -1.2 -2 -2.1 -2.2
Rateče °C 6.7 4.9 5.5 5.8 4.8 6.3 6.1 5.6 5.4 5.3
Murska Sobota °C 10 8.4 8.5 8.8 8.7 9.9 9.7 9.1 8.7 9
Novo mesto °C 9.9 8.3 8.8 8.9 8.6 9.9 9.6 9.4 8.8 9
Ljubljana °C 10.5 9 9.3 9.6 9 10.4 10.3 9.8 9.5 9.7
1971 1972 1973 1974 1975 1976 1977 1978 1979 1980
Kredarica °C -1.7 -1.8 -1.9 -2.1 -1.3 -2.3 -1.3 -2 -2 -2.4
Rateče °C 5.7 5.4 5.5 6.1 6.1 5.7 6 4.6 5.4 4.8
Murska Sobota °C 9.1 9 8.9 9.9 9.8 8.9 9.7 8.3 9.3 8.2
Novo mesto °C 9 9.2 9.2 10 10 9.1 10.1 8.6 9.8 8.8
Ljubljana °C 9.6 9.6 9.6 10.4 10.3 9.5 10.3 8.8 9.9 9
1981 1982 1983 1984 1985 1986 1987 1988 1989 1990
Kredarica °C -2.1 -1 -0.7 -2.4 -1.6 -1.3 -1.4 -1.2 -0.3 -0.6
Rateče °C 5.5 6.1 6.2 5.3 5.5 5.6 5.7 6.3 6.5 6.5
Murska Sobota °C 9.5 9.6 9.7 8.9 8.5 9 9 9.9 10.1 10.2
Novo mesto °C 9.8 10 10.1 9.4 8.9 9.1 9.5 10.2 10.3 10.5
Ljubljana °C 9.7 10.3 10.2 9.5 9.3 9.5 9.6 10.5 10.4 10.7
1991 1992 1993 1994 1995 1996 1997 1998 1999 2000
Kredarica °C -1.6 -0.2 -1.1 -0.1 -1.4 -1.9 -0.6 -0.9 -1 0
Rateče °C 5.5 7 6.4 7.6 6.4 5.8 6.7 6.8 6.7 7.6
Murska Sobota °C 9.3 10.9 10 11.3 10.1 9 9.7 10.1 10.3 11.5
Novo mesto °C 9.6 10.8 10.3 11.5 10.3 9.3 10.1 10.6 10.6 12
Ljubljana °C 10 11.1 10.6 11.8 10.7 9.8 10.8 11 11 12.2
2001 2002 2003 2004 2005 2006 2007
Kredarica °C -1 -0.2 -0.5 -1.1 -1.7 -0.3 -0.3
Rateče °C 7 7.6 7 6.3 5.8 6.9 7.6
Murska Sobota °C 10.6 11.3 10.5 9.8 9.5 10.2 11.2
Novo mesto °C 11.1 11.4 11.1 10.2 9.9 10.9 11.6
Ljubljana °C 11.4 11.8 11.6 10.7 10.4 11.4 12.1
Figure PS04-2: Mean annual precipitation at individual measuring sites
Sources: 

Meteorological Office, Environmental Agency of the Republic of Slovenia, 2008

Show data
1961 1962 1963 1964 1965 1966 1967 1968 1969 1970
Kredarica mm 1984 1796 2416 1738 2469 1939 1836 2005 1880 1702
Rateče mm 1478 1706 1805 1499 2290 1711 1514 1657 1807 1682
Murska Sobota mm 786 931 832 866 1064 970 730 612 787 761
Novo mesto mm 972 1202 1146 1319 1341 1117 1019 882 1165 1160
Ljubljana mm 1372 1606 1431 1438 1839 1300 1119 1333 1445 1395
1971 1972 1973 1974 1975 1976 1977 1978 1979 1980
Kredarica mm 1239 1702 2081 1750 1999 1703 1700 2096 2214 2099
Rateče mm 1273 1692 1607 1359 1617 1480 1495 1736 1892 1638
Murska Sobota mm 563 1033 809 912 805 751 718 676 912 862
Novo mesto mm 855 1390 837 1250 1025 1038 1109 948 1250 1247
Ljubljana mm 1107 1607 1270 1412 1435 1425 1265 1469 1475 1535
1981 1982 1983 1984 1985 1986 1987 1988 1989 1990
Kredarica mm 1588 2325 1642 2456 1874 2079 2799 2256 1900 2545
Rateče mm 1312 1532 1200 1497 1494 1192 1655 1191 1319 1553
Murska Sobota mm 768 864 634 741 874 788 982 722 776 900
Novo mesto mm 1199 1181 944 1296 1257 1213 1232 1115 1229 1192
Ljubljana mm 1402 1418 1149 1424 1611 1265 1528 1178 1211 1331
1991 1992 1993 1994 1995 1996 1997 1998 1999 2000
Kredarica mm 2148 2066 1802 1769 1680 1951 1800 2157 2376 2573
Rateče mm 1441 1483 1446 1327 1129 1597 1195 1401 1579 1891
Murska Sobota mm 804 689 677 989 924 1026 692 839 772 651
Novo mesto mm 1140 1264 1188 1211 1405 1245 991 1041 1299 827
Ljubljana mm 1182 1433 1177 1407 1423 1446 1230 1359 1501 1363
2001 2002 2003 2004 2005 2006 2007
Kredarica mm 2230 2093 1623 2241 1752 1885 1761
Rateče mm 1440 1458 1653 1638 1237 1180 1311
Murska Sobota mm 643 754 515 804 869 852 817
Novo mesto mm 1051 1379 886 1197 1382 1084 1114
Ljubljana mm 1328 1288 1091 1696 1403 1141 1196

Goals

Regular monitoring of the trend in temperatures and precipitation allows for the determination of long-term changes in the environment, preparations for newly arising conditions and mitigation of possible adverse consequences.


The period 1992-2003 recorded 1996 as the coldest year and 2000 as the warmest. Particularly during the last two decades, there has been a noticeable increase in average temperatures in Slovenia, with warmest years and months being more frequently recorded in the present than was the case in the past. In 2003, Slovenia experienced an extraordinarily hot and arid summer. However, owing to appreciable differences among regions, the rise in temperatures is not distributed evenly across the country, with the lowest temperature rise recorded in the coastal region. The rise in average temperatures is also apparent on global and European scales, as well as an accumulation of above-average warm years and months within the last 25 years.

Nevertheless, Slovenia is encountering even greater and more significant deviations with regard to precipitation. There are considerable differences among regions, since average annual precipitation in individual areas within the Julian Alps reach as much as 3500 mm, while towards the east, the amount of precipitation is rapidly dropping, reaching an annual average of a mere 800 mm in the easternmost part of the Prekmurje region. In 2000, Kredarica received the largest share of precipitation during the twelve-year period in question (1992-2003), while Prekmurje received the smallest. Furthermore, there are also apparent differences at each measuring station during the course of individual years. The coastal area reveals a trend of decreasing precipitation over the last 50 years. A similar situation is also present in the Zgornjesavska Valley; the Posočje region shows again a slight increase, while Kredarica recorded a low precipitation period in the latter half of the 1960’s and in the early 1970’s. Precipitation in Prekmurje does not reveal a distinctive trend of decreasing, at least not with regard to annual precipitation. Yet, even more troubling than the variability in annual precipitation are the deviations from average values that occur within shorter time spans (such as periods of several days, months or seasons). The consequences of precipitation deviations from normal values may be manifested as droughts, floods or landslides. Torrential floods, on the other hand, may already result from an exceptionally heavy rainfall appearing over a very short interval of time. Slovenia is therefore very likely most sensitive to climate changes in the areas that are vulnerable to the consequences of precipitation variability. With regard to precipitation considerations, Europe also expresses utmost concern over extreme weather events such as drought, intense passing showers and heavy prolonged rainfall. During recent years, several resounding instances have been recorded of all the three above listed extreme weather events, causing considerable economic damage. The heaviest was probably the toll from the massive floods sweeping across Eastern Europe in August 2002.


Source of data is Meteorological Office, Environmental Agency of the Republic of Slovenia.

The accuracy of measurements and the quality of data comply with the recommendations of the World Meteorological Organisation.

Kredarica is representative of the conditions in mountainous regions. Rateče is a measuring station where the conditions in the area surrounding the measuring point have for decades remained unchanged; therefore this measuring station is representative of valley areas in northern Slovenia. Murska Sobota describes the climate situation in the flatlands stretching across the north-eastern part of Slovenia, where the continental climate conditions are most evident in the entire country. Novo mesto is a typical representative of the climate conditions prevailing in the Lower Carniola region (Dolenjska). The area surrounding the measuring point in Ljubljana has undergone significant changes during recent decades; the data are nevertheless representative for the climate conditions in the city that is both the capital of and the largest city in Slovenia. Yet, it should be emphasised that these data are suitable neither for the illustration of changes in the climate conditions within a wider area nor for the assessment of changes arising directly from global climate changes. Temperatures are primarily dependent on elevation, therefore the data for Kredarica diverge most from average values; the temperatures measured at Rateče are also lower than the rest.

Due to appreciable inter-year variability, which in recent years has considerably exceeded the observed trends, it is not reasonable to derive a trend based on an eleven-year series. Therefore, the conclusions are made on the basis of all data available for the past 50 years.

The assessment of global trends and conditions in Europe is taken from the World Meteorological Organisation.


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