Halley_6a 06Z msl_pressure
2018   986.3   982.6   986.1   992.2   986.1   992.9   983.8   986.1   981.7   986.1   981.6   985.1
2019   985.3   989.7   987.3   987.3   987.0   984.1   996.1   990.1   982.8   986.7   992.5   997.2
2020   991.3   988.7   982.7   984.4   985.9   987.6   990.0   997.0   985.3   983.3   977.6   982.3
2021   986.1   982.6   984.5   978.2   985.4   990.8   993.6   985.3   979.7   985.8   980.5   976.4
2022   988.3   986.1   987.9   984.6   988.7   996.3   985.6   991.8   985.1   981.4   976.7   980.5
2023   982.6   989.6   986.1   992.2   987.1   995.6   988.1   989.9   989.8   980.0   987.1   982.6
2024   988.2   981.4   985.7   981.5       -       -       -       -       -       -       -       -