Halley_5 00Z msl_pressure 1992 991.8 995.1 985.1 992.4 997.6 999.1 986.8 986.2 988.2 988.7 982.4 989.6 1993 1000.3 989.4 988.4 988.5 984.8 987.7 986.4 985.0 985.8 980.8 989.1 987.7 1994 990.0 986.7 985.6 987.9 992.6 1001.4 991.1 982.5 988.3 985.7 992.2 983.7 1995 989.0 986.4 986.8 989.6 984.9 991.5 998.8 988.7 984.2 988.1 985.1 982.3 1996 990.6 990.2 984.0 989.0 987.0 993.2 983.7 990.7 996.4 981.1 987.7 990.3 1997 992.3 994.1 981.2 991.8 985.4 994.3 986.7 987.7 985.8 988.0 994.3 994.0 1998 989.0 985.7 985.7 980.4 982.7 985.7 983.6 984.0 985.6 985.5 980.8 983.7 1999 988.8 990.8 991.8 982.0 986.9 999.3 986.8 980.4 986.8 976.1 986.9 981.1 2000 983.3 988.5 991.6 990.4 987.6 990.3 995.4 987.7 991.8 985.2 989.9 998.4 2001 991.2 993.2 988.5 983.5 994.1 986.2 989.9 980.8 984.2 974.0 980.9 980.6 2002 987.8 983.0 992.1 988.1 994.9 987.2 990.1 983.4 988.6 992.1 988.7 985.7 2003 997.3 991.3 990.8 983.6 986.1 996.6 989.2 980.8 987.4 987.7 - 995.2 2004 987.9 993.6 984.1 990.1 987.4 984.4 985.2 985.2 986.6 986.6 990.0 994.5 2005 990.1 983.1 988.2 983.4 990.8 995.0 989.3 986.7 990.4 987.1 989.7 999.5 2006 990.3 989.7 987.1 987.6 979.6 989.3 983.1 991.8 988.7 981.7 982.8 988.9 2007 990.6 988.3 988.7 996.0 993.2 998.8 999.3 987.8 994.0 985.4 987.6 982.3 2008 988.0 984.9 987.0 991.0 991.7 988.9 984.6 982.5 989.8 981.3 982.8 981.0 2009 985.2 989.4 985.3 987.4 994.0 992.0 987.8 996.4 990.3 978.9 990.5 988.6 2010 995.3 993.3 987.1 985.4 986.0 986.2 981.2 985.4 986.6 979.9 983.4 991.2 2011 992.5 986.1 993.3 989.4 985.4 991.6 993.1 994.0 992.9 986.3 991.2 981.4 2012 982.3 - - - - - - - - - - - 2013 - - - - - - - - - - - - 2014 - - - - - - - - - - - - 2015 - - - - - - - - - - - - 2016 - - - - - - - - - - - - 2017 - - - - - - - - - - - - 2018 - - - - - - - - - - - - 2019 - - - - - - - - - - - - 2020 - - - - - - - - - - - - 2021 - - - - - - - - - - - - 2022 - - - - - - - - - - - - 2023 - - - - - - - - - - - - 2024 - - - - - - - - - - - -