Tracks of negative upper-tropospheric PV anomalies (PVAs$^{-}$) over the Northern Hemisphere in ERA5 reanalysis (1979-2021)

This archive contains identified negative, upper-tropospheric PV anomalies (short: PVAs$^{-}$) and their tracks for the period 1979-2021 over the Northern Hemisphere based on ERA5 reanalysis data and represents the basis for recent publications on atmospheric blocking dynamics (e.g., Oertel et al., 2023; Hauser et al., 2023; Wenta et al., 2024; Hauser et al., 2024). Details on the method to identify and track PVAs- are provided in Hauser et al. (2024).

References: Hauser, S., Teubler, F., Riemer, M., Knippertz, P., and Grams, C. M. (2023): Towards a holistic understanding of blocked regime dynamics through a combination of complementary diagnostic perspectives, Weather and Climate Dynamics, 4, 399–425, doi.org/10.5194/wcd-4-399-2023 Hauser, S., Teubler, F., Riemer, M., Knippertz, P., and Grams, C. M. (2024): Life cycle dynamics of Greenland blocking from a potential vorticity perspective, EGUsphere [preprint], doi.org/10.5194/egusphere-2023-2945.