Key message
Neutral

In the last decade, droughts have been slightly less intense than in the previous decade, and it is worrying that they occur most often during the growing season. Especially in the first trimester, we observe a decrease in the frequency and intensity of hydrological drought. In the period 1961–2020, the year 2003 stands out in terms of drought, which was dry in all quarters of the year. After 2000, the years 2007 and 2011 were more markedly dry.


Charts

Figure PP12-1: Yearly streamflow drought index for Slovenia, 1961-2020
Sources:

Slovenian Environment Agency, 2022 (25. 03. 2022)

Show data
Wet (wSDI >=0)[ -] Mild Drought (-1 <= wSDI < 0)[ -] Moderate Drought (-1.5 <= wSDI < -1)[ -] Severe Drought (-2 <= wSDI < -1.5)[ -] Extreme Drought (wSDI < -2)[ -]
1961 0.07 0 0 0 0
1962 1.06 0 0 0 0
1963 0.78 0 0 0 0
1964 0.38 0 0 0 0
1965 2.03 0 0 0 0
1966 0.54 0 0 0 0
1967 0 -0.16 0 0 0
1968 0 -0.07 0 0 0
1969 0.82 0 0 0 0
1970 0.71 0 0 0 0
1971 0 0 -1.03 0 0
1972 1.22 0 0 0 0
1973 0 -0.49 0 0 0
1974 0.35 0 0 0 0
1975 0.13 0 0 0 0
1976 0.01 0 0 0 0
1977 0.27 0 0 0 0
1978 0.11 0 0 0 0
1979 1.07 0 0 0 0
1980 0.80 0 0 0 0
1981 0 -0.53 0 0 0
1982 0.38 0 0 0 0
1983 0 0 0 -1.54 0
1984 0.41 0 0 0 0
1985 0.10 0 0 0 0
1986 0.03 0 0 0 0
1987 0.68 0 0 0 0
1988 0 -0.41 0 0 0
1989 0 -0.58 0 0 0
1990 0 -0.23 0 0 0
1991 0.26 0 0 0 0
1992 0.01 0 0 0 0
1993 0 -0.69 0 0 0
1994 0 -0.34 0 0 0
1995 0.47 0 0 0 0
1996 0.92 0 0 0 0
1997 0 -0.72 0 0 0
1998 0.10 0 0 0 0
1999 0.07 0 0 0 0
2000 0 -0.29 0 0 0
2001 0 -0.26 0 0 0
2002 0 -0.73 0 0 0
2003 0 0 0 0 -2.42
2004 0.43 0 0 0 0
2005 0 -0.38 0 0 0
2006 0 -0.59 0 0 0
2007 0 0 -1.31 0 0
2008 0 -0.05 0 0 0
2009 0.22 0 0 0 0
2010 1.24 0 0 0 0
2011 0 0 0 0 -2.21
2012 0 -0.65 0 0 0
2013 0.98 0 0 0 0
2014 2.01 0 0 0 0
2015 0 0 -1.13 0 0
2016 0.24 0 0 0 0
2017 0 -0.15 0 0 0
2018 0 -0.04 0 0 0
2019 0 -0.07 0 0 0
2020 0 -0.83 0 0 0
Figure PP12-2: Half-year streamflow drought index for Slovenia - the period from April to September, 1961-2020
Sources:

Slovenian Environment Agency, 2022 (25. 03. 2022)

Show data
Wet (wSDI >=0)[ -] Mild Drought (-1.0 <= wSDI < 0)[ -] Moderate Drought (-1.5 <= wSDI < -1.0)[ -] Severe Drought (-2 <= wSDI < -1.5)[ -] Extreme Drought (wSDI < -2)[ -]
1961 0.02 0 0 0 0
1962 0.98 0 0 0 0
1963 0.73 0 0 0 0
1964 0 -0.20 0 0 0
1965 1.98 0 0 0 0
1966 0.16 0 0 0 0
1967 0.25 0 0 0 0
1968 0.14 0 0 0 0
1969 1.06 0 0 0 0
1970 1.04 0 0 0 0
1971 0 -0.69 0 0 0
1972 1.51 0 0 0 0
1973 0 -0.09 0 0 0
1974 0.31 0 0 0 0
1975 1.10 0 0 0 0
1976 0.14 0 0 0 0
1977 0.22 0 0 0 0
1978 0.71 0 0 0 0
1979 0.18 0 0 0 0
1980 0.29 0 0 0 0
1981 0 -0.11 0 0 0
1982 0 -0.09 0 0 0
1983 0 0 -1.08 0 0
1984 0.80 0 0 0 0
1985 0.54 0 0 0 0
1986 0.76 0 0 0 0
1987 0.55 0 0 0 0
1988 0.27 0 0 0 0
1989 0.72 0 0 0 0
1990 0 -0.30 0 0 0
1991 0.33 0 0 0 0
1992 0 -0.86 0 0 0
1993 0 0 0 -1.69 0
1994 0.00 0 0 0 0
1995 0.56 0 0 0 0
1996 0.79 0 0 0 0
1997 0 -0.91 0 0 0
1998 0.23 0 0 0 0
1999 0.48 0 0 0 0
2000 0 0 0 -1.68 0
2001 0 -0.31 0 0 0
2002 0 -0.55 0 0 0
2003 0 0 0 0 -2.79
2004 0.40 0 0 0 0
2005 0.38 0 0 0 0
2006 0.11 0 0 0 0
2007 0 0 -1.38 0 0
2008 0.12 0 0 0 0
2009 0 -0.09 0 0 0
2010 0.60 0 0 0 0
2011 0 0 0 -1.71 0
2012 0 0 -1.12 0 0
2013 0.40 0 0 0 0
2014 0.94 0 0 0 0
2015 0 -0.92 0 0 0
2016 0 -0.49 0 0 0
2017 0 -0.36 0 0 0
2018 0 -0.32 0 0 0
2019 0 -0.21 0 0 0
2020 0 0 -1.01 0 0

Methodology

Date of data source summarization

Related indicators