# Section 1. Areas and periods shown with unrealistically deep snow (1958-2016) # # For areas within 600 km of the grid points listed below, snow depth values were found to be unrealistically high during the periods given below due to snow depth analysis bugs. # 1.1. Europe #area latitude longitude Period of significant impact (boreal winter only) 1 58.68943 8.83929 1980/1981 to 1985/1986 2 65.99048 21.56250 1979/1980 to 1986/1987, 2012/2013, 2014/2015 2 65.42886 21.56250 1979/1980 to 1986/1987, 2012/2013, 2014/2015 2 63.74401 19.80000 1979/1980 to 1986/1987, 2012/2013, 2014/2015 3 60.93591 26.66667 1958 to 1986/1987 3 60.93591 27.50000 1958 to 1986/1987 # 1.2. Western Siberia #area latitude longitude Period of significant impact (boreal winter only) 1 68.23695 73.12500 1958 to 1985/1986 1 67.67534 72.18750 1958 to 1985/1986 2 73.29150 81.25000 1958, 1966/1967 to 1979/1980, 1987/1988 # 1.3. East Asia #area latitude longitude Period of significant impact (boreal winter only) 1 42.96405 140.62500 1959/1960 to 1986/1987 1 42.96405 141.25000 1959/1960 to 1986/1987 1 42.96405 141.87500 1959/1960 to 1986/1987 1 42.96405 142.50000 1959/1960 to 1986/1987 1 42.96405 143.12500 1959/1960 to 1986/1987 1 42.96405 143.75000 1959/1960 to 1986/1987 1 42.96405 144.37500 1959/1960 to 1986/1987 1 42.40243 140.00000 1959/1960 to 1986/1987 1 42.40243 142.50000 1959/1960 to 1986/1987 1 42.40243 143.12500 1959/1960 to 1986/1987 1 41.84081 140.62500 1959/1960 to 1986/1987 2 49.70351 140.14286 1966/1967, 1968/1969 to 1970/1971, 1973/1974 to 1980/1981, 1985/1986, 1987/1988 to 1989/1990, 1991/1992 to 1999/2000, 2001/2002, 2002/2003, 2005/2006, 2012/2013 to 2014/2015 2 49.70351 142.71429 1966/1967, 1968/1969 to 1970/1971, 1973/1974 to 1980/1981, 1985/1986, 1987/1988 to 1989/1990, 1991/1992 to 1999/2000, 2001/2002, 2002/2003, 2005/2006, 2012/2013 to 2014/2015 2 49.70351 143.35714 1966/1967, 1968/1969 to 1970/1971, 1973/1974 to 1980/1981, 1985/1986, 1987/1988 to 1989/1990, 1991/1992 to 1999/2000, 2001/2002, 2002/2003, 2005/2006, 2012/2013 to 2014/2015 2 49.70351 144.00000 1966/1967, 1968/1969 to 1970/1971, 1973/1974 to 1980/1981, 1985/1986, 1987/1988 to 1989/1990, 1991/1992 to 1999/2000, 2001/2002, 2002/2003, 2005/2006, 2012/2013 to 2014/2015 2 49.14189 140.14286 1966/1967, 1968/1969 to 1970/1971, 1973/1974 to 1980/1981, 1985/1986, 1987/1988 to 1989/1990, 1991/1992 to 1999/2000, 2001/2002, 2002/2003, 2005/2006, 2012/2013 to 2014/2015 2 49.14189 142.07143 1966/1967, 1968/1969 to 1970/1971, 1973/1974 to 1980/1981, 1985/1986, 1987/1988 to 1989/1990, 1991/1992 to 1999/2000, 2001/2002, 2002/2003, 2005/2006, 2012/2013 to 2014/2015 2 49.14189 142.71429 1966/1967, 1968/1969 to 1970/1971, 1973/1974 to 1980/1981, 1985/1986, 1987/1988 to 1989/1990, 1991/1992 to 1999/2000, 2001/2002, 2002/2003, 2005/2006, 2012/2013 to 2014/2015 2 48.58026 140.14286 1966/1967, 1968/1969 to 1970/1971, 1973/1974 to 1980/1981, 1985/1986, 1987/1988 to 1989/1990, 1991/1992 to 1999/2000, 2001/2002, 2002/2003, 2005/2006, 2012/2013 to 2014/2015 2 48.58026 142.07143 1966/1967, 1968/1969 to 1970/1971, 1973/1974 to 1980/1981, 1985/1986, 1987/1988 to 1989/1990, 1991/1992 to 1999/2000, 2001/2002, 2002/2003, 2005/2006, 2012/2013 to 2014/2015 2 48.58026 142.71429 1966/1967, 1968/1969 to 1970/1971, 1973/1974 to 1980/1981, 1985/1986, 1987/1988 to 1989/1990, 1991/1992 to 1999/2000, 2001/2002, 2002/2003, 2005/2006, 2012/2013 to 2014/2015 2 47.45702 142.07143 1966/1967, 1968/1969 to 1970/1971, 1973/1974 to 1980/1981, 1985/1986, 1987/1988 to 1989/1990, 1991/1992 to 1999/2000, 2001/2002, 2002/2003, 2005/2006, 2012/2013 to 2014/2015 2 47.45702 142.71429 1966/1967, 1968/1969 to 1970/1971, 1973/1974 to 1980/1981, 1985/1986, 1987/1988 to 1989/1990, 1991/1992 to 1999/2000, 2001/2002, 2002/2003, 2005/2006, 2012/2013 to 2014/2015 2 46.89540 142.07143 1966/1967, 1968/1969 to 1970/1971, 1973/1974 to 1980/1981, 1985/1986, 1987/1988 to 1989/1990, 1991/1992 to 1999/2000, 2001/2002, 2002/2003, 2005/2006, 2012/2013 to 2014/2015 2 46.89540 142.71429 1966/1967, 1968/1969 to 1970/1971, 1973/1974 to 1980/1981, 1985/1986, 1987/1988 to 1989/1990, 1991/1992 to 1999/2000, 2001/2002, 2002/2003, 2005/2006, 2012/2013 to 2014/2015 2 46.33378 142.07143 1966/1967, 1968/1969 to 1970/1971, 1973/1974 to 1980/1981, 1985/1986, 1987/1988 to 1989/1990, 1991/1992 to 1999/2000, 2001/2002, 2002/2003, 2005/2006, 2012/2013 to 2014/2015 # 1.4. Eastern Siberia #area latitude longitude Period of significant impact (boreal winter only) 1 59.81267 144.16667 1962/1963, 1965/1966, 1966/1967, 1970/1971 to 1973/1974, 1980/1981 to 1982/1983, 1984/1985 to 1987/1988, 2013/2014 1 59.81267 145.00000 1962/1963, 1965/1966, 1966/1967, 1970/1971 to 1973/1974, 1980/1981 to 1982/1983, 1984/1985 to 1987/1988, 2013/2014 1 59.81267 145.83333 1962/1963, 1965/1966, 1966/1967, 1970/1971 to 1973/1974, 1980/1981 to 1982/1983, 1984/1985 to 1987/1988, 2013/2014 1 59.81267 146.66667 1962/1963, 1965/1966, 1966/1967, 1970/1971 to 1973/1974, 1980/1981 to 1982/1983, 1984/1985 to 1987/1988, 2013/2014 1 59.81267 147.50000 1962/1963, 1965/1966, 1966/1967, 1970/1971 to 1973/1974, 1980/1981 to 1982/1983, 1984/1985 to 1987/1988, 2013/2014 1 59.81267 148.33333 1962/1963, 1965/1966, 1966/1967, 1970/1971 to 1973/1974, 1980/1981 to 1982/1983, 1984/1985 to 1987/1988, 2013/2014 1 59.81267 149.16667 1962/1963, 1965/1966, 1966/1967, 1970/1971 to 1973/1974, 1980/1981 to 1982/1983, 1984/1985 to 1987/1988, 2013/2014 1 59.81267 150.00000 1962/1963, 1965/1966, 1966/1967, 1970/1971 to 1973/1974, 1980/1981 to 1982/1983, 1984/1985 to 1987/1988, 2013/2014 1 59.81267 154.16667 1962/1963, 1965/1966, 1966/1967, 1970/1971 to 1973/1974, 1980/1981 to 1982/1983, 1984/1985 to 1987/1988, 2013/2014 1 59.25105 154.28571 1962/1963, 1965/1966, 1966/1967, 1970/1971 to 1973/1974, 1980/1981 to 1982/1983, 1984/1985 to 1987/1988, 2013/2014 2 55.31971 156.00000 1958/1959 to 1962/1963, 1965/1966, 1980/1981, 1984/1985, 1985/1986, 1987/1988, 1988/1989, 1993/1994, 1995/1996, 1996/1997, 1998/1999, 2004/2005, 2006/2007 to 2013/2014 3 69.36019 175.71429 2009/2010, 2010/2011, 2012/2013, 2013/2014, 2015/2016 # 1.5. Northwestern North America #area latitude longitude Period of significant impact (boreal winter only) 1 66.55210 188.43750 1958/1959, 1964/1965 to 1966/1967, 1972/1973, 1973/1974, 1976/1977, 1980/1981, 1983/1984 to 1990/1991, 1992/1993 to 1994/1995, 2008/2009, 2011/2012, 2012/2013 1 65.99048 187.50000 1958/1959, 1964/1965 to 1966/1967, 1972/1973, 1973/1974, 1976/1977, 1980/1981, 1983/1984 to 1990/1991, 1992/1993 to 1994/1995, 2008/2009, 2011/2012, 2012/2013 1 65.99048 188.43750 1958/1959, 1964/1965 to 1966/1967, 1972/1973, 1973/1974, 1976/1977, 1980/1981, 1983/1984 to 1990/1991, 1992/1993 to 1994/1995, 2008/2009, 2011/2012, 2012/2013 1 65.99048 189.37500 1958/1959, 1964/1965 to 1966/1967, 1972/1973, 1973/1974, 1976/1977, 1980/1981, 1983/1984 to 1990/1991, 1992/1993 to 1994/1995, 2008/2009, 2011/2012, 2012/2013 1 65.42886 187.50000 1958/1959, 1964/1965 to 1966/1967, 1972/1973, 1973/1974, 1976/1977, 1980/1981, 1983/1984 to 1990/1991, 1992/1993 to 1994/1995, 2008/2009, 2011/2012, 2012/2013 1 64.86725 185.62500 1958/1959, 1964/1965 to 1966/1967, 1972/1973, 1973/1974, 1976/1977, 1980/1981, 1983/1984 to 1990/1991, 1992/1993 to 1994/1995, 2008/2009, 2011/2012, 2012/2013 1 64.86725 186.56250 1958/1959, 1964/1965 to 1966/1967, 1972/1973, 1973/1974, 1976/1977, 1980/1981, 1983/1984 to 1990/1991, 1992/1993 to 1994/1995, 2008/2009, 2011/2012, 2012/2013 1 64.86725 187.50000 1958/1959, 1964/1965 to 1966/1967, 1972/1973, 1973/1974, 1976/1977, 1980/1981, 1983/1984 to 1990/1991, 1992/1993 to 1994/1995, 2008/2009, 2011/2012, 2012/2013 1 64.86725 194.06250 1958/1959, 1964/1965 to 1966/1967, 1972/1973, 1973/1974, 1976/1977, 1980/1981, 1983/1984 to 1990/1991, 1992/1993 to 1994/1995, 2008/2009, 2011/2012, 2012/2013 1 64.86725 195.00000 1958/1959, 1964/1965 to 1966/1967, 1972/1973, 1973/1974, 1976/1977, 1980/1981, 1983/1984 to 1990/1991, 1992/1993 to 1994/1995, 2008/2009, 2011/2012, 2012/2013 1 64.86725 195.93750 1958/1959, 1964/1965 to 1966/1967, 1972/1973, 1973/1974, 1976/1977, 1980/1981, 1983/1984 to 1990/1991, 1992/1993 to 1994/1995, 2008/2009, 2011/2012, 2012/2013 1 64.86725 196.87500 1958/1959, 1964/1965 to 1966/1967, 1972/1973, 1973/1974, 1976/1977, 1980/1981, 1983/1984 to 1990/1991, 1992/1993 to 1994/1995, 2008/2009, 2011/2012, 2012/2013 1 64.86725 197.81250 1958/1959, 1964/1965 to 1966/1967, 1972/1973, 1973/1974, 1976/1977, 1980/1981, 1983/1984 to 1990/1991, 1992/1993 to 1994/1995, 2008/2009, 2011/2012, 2012/2013 2 60.93591 207.50000 1958/1959 to 1961/1962, 1964/1965 to 1966/1967, 1971/1972 to 1989/1990, 1994/1995 to 1996/1997, 1998/1999, 2008/2009, 2009/2010 2 60.93591 208.33333 1958/1959 to 1961/1962, 1964/1965 to 1966/1967, 1971/1972 to 1989/1990, 1994/1995 to 1996/1997, 1998/1999, 2008/2009, 2009/2010 2 60.93591 211.66667 1958/1959 to 1961/1962, 1964/1965 to 1966/1967, 1971/1972 to 1989/1990, 1994/1995 to 1996/1997, 1998/1999, 2008/2009, 2009/2010 2 60.93591 212.50000 1958/1959 to 1961/1962, 1964/1965 to 1966/1967, 1971/1972 to 1989/1990, 1994/1995 to 1996/1997, 1998/1999, 2008/2009, 2009/2010 2 60.93591 213.33333 1958/1959 to 1961/1962, 1964/1965 to 1966/1967, 1971/1972 to 1989/1990, 1994/1995 to 1996/1997, 1998/1999, 2008/2009, 2009/2010 2 60.37429 207.50000 1958/1959 to 1961/1962, 1964/1965 to 1966/1967, 1971/1972 to 1989/1990, 1994/1995 to 1996/1997, 1998/1999, 2008/2009, 2009/2010 2 60.37429 211.66667 1958/1959 to 1961/1962, 1964/1965 to 1966/1967, 1971/1972 to 1989/1990, 1994/1995 to 1996/1997, 1998/1999, 2008/2009, 2009/2010 2 59.81267 206.66667 1958/1959 to 1961/1962, 1964/1965 to 1966/1967, 1971/1972 to 1989/1990, 1994/1995 to 1996/1997, 1998/1999, 2008/2009, 2009/2010 2 59.81267 209.16667 1958/1959 to 1961/1962, 1964/1965 to 1966/1967, 1971/1972 to 1989/1990, 1994/1995 to 1996/1997, 1998/1999, 2008/2009, 2009/2010 2 59.81267 210.00000 1958/1959 to 1961/1962, 1964/1965 to 1966/1967, 1971/1972 to 1989/1990, 1994/1995 to 1996/1997, 1998/1999, 2008/2009, 2009/2010 3 59.81267 219.16667 1958/1959, 1964/1965 to 1985/1986, 2011/2012 3 59.81267 220.00000 1958/1959, 1964/1965 to 1985/1986, 2011/2012 4 53.63485 227.10938 1958/1959 to 1961/1962, 1964/1965 to 1966/1967, 1968/1969, 1970/1971 to 1975/1976, 1977/1978, 1978/1979, 1981/1982 to 1984/1985, 2006/2007 to 2008/2009 4 53.63485 227.81250 1958/1959 to 1961/1962, 1964/1965 to 1966/1967, 1968/1969, 1970/1971 to 1975/1976, 1977/1978, 1978/1979, 1981/1982 to 1984/1985, 2006/2007 to 2008/2009 4 53.07323 227.81250 1958/1959 to 1961/1962, 1964/1965 to 1966/1967, 1968/1969, 1970/1971 to 1975/1976, 1977/1978, 1978/1979, 1981/1982 to 1984/1985, 2006/2007 to 2008/2009 # 1.6. Northern Canada #area latitude longitude Period of significant impact (boreal winter only) 1 78.90760 255.53571 1977/1978 1 78.90760 257.14286 1977/1978 1 78.34600 257.14286 1977/1978 2 68.79857 246.56250 1977/1978, 1980/1981 to 1982/1983, 1984/1985 to 1987/1988 2 68.79857 247.50000 1977/1978, 1980/1981 to 1982/1983, 1984/1985 to 1987/1988 2 68.79857 248.43750 1977/1978, 1980/1981 to 1982/1983, 1984/1985 to 1987/1988 2 68.79857 249.37500 1977/1978, 1980/1981 to 1982/1983, 1984/1985 to 1987/1988 2 68.79857 250.31250 1977/1978, 1980/1981 to 1982/1983, 1984/1985 to 1987/1988 # 1.7. Northeastern Canada #area latitude longitude Period of significant impact (boreal winter only) 1 69.92181 280.71429 1977/1978, 1978/1979, 1980/1981 to 1990/1991, 1992/1993, 1993/1994 1 68.79857 278.43750 1977/1978, 1978/1979, 1980/1981 to 1990/1991, 1992/1993, 1993/1994 1 67.11372 278.43750 1977/1978, 1978/1979, 1980/1981 to 1990/1991, 1992/1993, 1993/1994 1 66.55210 274.68750 1977/1978, 1978/1979, 1980/1981 to 1990/1991, 1992/1993, 1993/1994 1 66.55210 275.62500 1977/1978, 1978/1979, 1980/1981 to 1990/1991, 1992/1993, 1993/1994 1 66.55210 276.56250 1977/1978, 1978/1979, 1980/1981 to 1990/1991, 1992/1993, 1993/1994 2 64.86725 282.18750 1977/1978, 1978/1979, 1987/1988 2 64.86725 283.12500 1977/1978, 1978/1979, 1987/1988 2 64.86725 284.06250 1977/1978, 1978/1979, 1987/1988 2 64.86725 285.00000 1977/1978, 1978/1979, 1987/1988 2 64.30563 282.60000 1977/1978, 1978/1979, 1987/1988 2 64.30563 283.50000 1977/1978, 1978/1979, 1987/1988 3 69.92181 292.50000 1977/1978, 1985/1986, 1987/1988 to 1990/1991, 1993/1994 3 69.36019 292.50000 1977/1978, 1985/1986, 1987/1988 to 1990/1991, 1993/1994 4 66.55210 298.12500 1977/1978, 1978/1979, 1980/1981 to 1983/1984, 1985/1986 to 1990/1991 4 65.99048 294.37500 1977/1978, 1978/1979, 1980/1981 to 1983/1984, 1985/1986 to 1990/1991 4 65.99048 295.31250 1977/1978, 1978/1979, 1980/1981 to 1983/1984, 1985/1986 to 1990/1991 4 65.99048 296.25000 1977/1978, 1978/1979, 1980/1981 to 1983/1984, 1985/1986 to 1990/1991 4 65.99048 297.18750 1977/1978, 1978/1979, 1980/1981 to 1983/1984, 1985/1986 to 1990/1991 4 65.42886 295.31250 1977/1978, 1978/1979, 1980/1981 to 1983/1984, 1985/1986 to 1990/1991 4 65.42886 296.25000 1977/1978, 1978/1979, 1980/1981 to 1983/1984, 1985/1986 to 1990/1991 4 62.05915 293.33333 1977/1978, 1978/1979, 1980/1981 to 1983/1984, 1985/1986 to 1990/1991 # 1.8. Northeastern North America #area latitude longitude Period of significant impact (boreal winter only) 1 48.58026 271.28571 1958 to 1990/1991, 1995/1996 to 1998/1999, 2003/2004 to 2005/2006, 2013/2014 1 46.33378 272.57143 1958 to 1990/1991, 1995/1996 to 1998/1999, 2003/2004 to 2005/2006, 2013/2014 1 46.33378 273.21429 1958 to 1990/1991, 1995/1996 to 1998/1999, 2003/2004 to 2005/2006, 2013/2014 1 46.33378 273.85714 1958 to 1990/1991, 1995/1996 to 1998/1999, 2003/2004 to 2005/2006, 2013/2014 1 45.77216 272.57143 1958 to 1990/1991, 1995/1996 to 1998/1999, 2003/2004 to 2005/2006, 2013/2014 1 45.21054 272.57143 1958 to 1990/1991, 1995/1996 to 1998/1999, 2003/2004 to 2005/2006, 2013/2014 1 45.21054 276.42857 1958 to 1990/1991, 1995/1996 to 1998/1999, 2003/2004 to 2005/2006, 2013/2014 2 46.33378 297.00000 1977/1978, 1980/1981, 1982/1983 to 1986/1987, 1992/1993, 1993/1994 2 45.77216 294.42857 1977/1978, 1980/1981, 1982/1983 to 1986/1987, 1992/1993, 1993/1994 2 45.77216 297.00000 1977/1978, 1980/1981, 1982/1983 to 1986/1987, 1992/1993, 1993/1994 2 45.21054 297.00000 1977/1978, 1980/1981, 1982/1983 to 1986/1987, 1992/1993, 1993/1994 2 45.21054 297.64286 1977/1978, 1980/1981, 1982/1983 to 1986/1987, 1992/1993, 1993/1994 2 44.64892 292.50000 1977/1978, 1980/1981, 1982/1983 to 1986/1987, 1992/1993, 1993/1994 2 44.64892 294.42857 1977/1978, 1980/1981, 1982/1983 to 1986/1987, 1992/1993, 1993/1994 2 44.64892 295.07143 1977/1978, 1980/1981, 1982/1983 to 1986/1987, 1992/1993, 1993/1994 2 44.64892 295.71429 1977/1978, 1980/1981, 1982/1983 to 1986/1987, 1992/1993, 1993/1994 2 44.64892 296.35714 1977/1978, 1980/1981, 1982/1983 to 1986/1987, 1992/1993, 1993/1994 2 44.08730 294.37500 1977/1978, 1980/1981, 1982/1983 to 1986/1987, 1992/1993, 1993/1994 2 44.08730 295.00000 1977/1978, 1980/1981, 1982/1983 to 1986/1987, 1992/1993, 1993/1994 3 50.82675 294.60938 1977/1978, 2002/2003 to 2005/2006, 2013/2014, 2014/2015 3 50.82675 295.31250 1977/1978, 2002/2003 to 2005/2006, 2013/2014, 2014/2015 3 50.82675 296.01563 1977/1978, 2002/2003 to 2005/2006, 2013/2014, 2014/2015 3 50.82675 296.71875 1977/1978, 2002/2003 to 2005/2006, 2013/2014, 2014/2015 3 50.26513 294.42857 1977/1978, 2002/2003 to 2005/2006, 2013/2014, 2014/2015 3 50.26513 295.07143 1977/1978, 2002/2003 to 2005/2006, 2013/2014, 2014/2015 3 50.26513 296.35714 1977/1978, 2002/2003 to 2005/2006, 2013/2014, 2014/2015 3 49.70351 296.35714 1977/1978, 2002/2003 to 2005/2006, 2013/2014, 2014/2015 3 49.70351 297.00000 1977/1978, 2002/2003 to 2005/2006, 2013/2014, 2014/2015 3 49.14189 297.64286 1977/1978, 2002/2003 to 2005/2006, 2013/2014, 2014/2015 4 51.94999 302.34375 1977/1978, 1979/1980 to 1990/1991, 1992/1993 to 1994/1995, 2005/2006, 2006/2007, 2012/2013, 2013/2014, 2015/2016 4 51.94999 303.04688 1977/1978, 1979/1980 to 1990/1991, 1992/1993 to 1994/1995, 2005/2006, 2006/2007, 2012/2013, 2013/2014, 2015/2016 4 51.94999 303.75000 1977/1978, 1979/1980 to 1990/1991, 1992/1993 to 1994/1995, 2005/2006, 2006/2007, 2012/2013, 2013/2014, 2015/2016 4 51.38837 303.75000 1977/1978, 1979/1980 to 1990/1991, 1992/1993 to 1994/1995, 2005/2006, 2006/2007, 2012/2013, 2013/2014, 2015/2016 4 49.14189 306.00000 1977/1978, 1979/1980 to 1990/1991, 1992/1993 to 1994/1995, 2005/2006, 2006/2007, 2012/2013, 2013/2014, 2015/2016 4 48.01864 300.85714 1977/1978, 1979/1980 to 1990/1991, 1992/1993 to 1994/1995, 2005/2006, 2006/2007, 2012/2013, 2013/2014, 2015/2016 4 47.45702 304.71429 1977/1978, 1979/1980 to 1990/1991, 1992/1993 to 1994/1995, 2005/2006, 2006/2007, 2012/2013, 2013/2014, 2015/2016 4 46.89540 306.64286 1977/1978, 1979/1980 to 1990/1991, 1992/1993 to 1994/1995, 2005/2006, 2006/2007, 2012/2013, 2013/2014, 2015/2016 5 55.31971 299.25000 1977/1978, 1981/1982 to 1983/1984, 1998/1999, 2001/2002, 2002/2003, 2004/2005 5 56.44295 297.75000 1977/1978, 1981/1982 to 1983/1984, 1998/1999, 2001/2002, 2002/2003, 2004/2005