{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:44:42.839161", "data_source": "ERA5", "website": "http://wexa.jamstec.go.jp", "Author": "Patrick Martineau"}, "event_id": {"name": "Event ID", "description": "A unique identifier based on: beginning_date, end_date, longitude, and latitude", "value": "2010-May-30_to_2010-Jun-06_135.0_-16.0"}, "event_label": {"name": "Event label", "description": "Integer-valued grid identifier that uniquely labels each detected extreme event in space and time, consistent with the corresponding labels stored in the NetCDF dataset.", "value": 2010050000925}, "status": {"name": "Status", "description": "An ongoing event denotes an event that lasts up to the latest data available. These events are subject to change as newer data is added.", "value": false}, "start_date": {"name": "Start date", "description": "First date on which grid points are under the influence of an event", "value": "May 30 2010"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 06 2010"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 8}, "figures_available": {"name": "Figures available", "description": "True if figures were pre-generated for this event", "value": true}, "detection_var": {"name": "Detection variable", "description": "Variable used for the detection scheme", "value": "t2m"}, "event_type": {"name": "Event type", "description": "Type of the event detected", "value": "Cold spell"}, "area": {"name": "Area", "description": "The area (in square meters) encompassing all grid points under the influence of an event during its lifetime.", "value": 59972.16373871261}, "countries_affected": {"name": "Countries affected", "description": "The ArcGIS geocoding API (https://developers.arcgis.com/rest/geocode/) is used to obtain a list of all the countries affected by an event during its lifetime.", "value": ["Australia"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.Australia"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Australia"]}, "oceans_affected": {"name": "Ocean basins affected", "description": "The ArcGIS geocoding API (https://developers.arcgis.com/rest/geocode/) is used to obtain a list of all the ocean basins affected by an event during its lifetime.", "value": []}, "center_lat": {"name": "Center latitude", "description": "Latitude of the maximum time-integrated standardized t2m anomalies. Only t2m of the same polarity as the events are considered (positive T2m for a HW, for instance). The centre is thus representative of both the severity and persistence of anomalies.", "value": -16.0}, "center_lon": {"name": "Center longitude", "description": "Longitude of the maximum time-integrated standardized t2m anomalies. Only t2m of the same polarity as the events are considered (positive T2m for a HW, for instance). The centre is thus representative of both the severity and persistence of anomalies.", "value": 135.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "135.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 132.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 135.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -16.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -12.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2010-05-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[135.0, -15.25], [135.53, -15.47], [135.75, -16.0], [135.53, -16.53], [135.0, -16.75], [134.47, -16.53], [134.25, -16.0], [134.47, -15.47], [135.0, -15.25]]]]}, "2010-05-31T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[134.47, -14.97], [135.0, -14.75], [135.53, -14.97], [135.75, -15.5], [135.65, -15.75], [135.75, -16.0], [135.53, -16.53], [135.0, -16.75], [134.47, -16.53], [134.25, -16.0], [134.35, -15.75], [134.25, -15.5], [134.47, -14.97]]]]}, "2010-06-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[134.47, -14.97], [135.0, -14.75], [135.53, -14.97], [135.75, -15.5], [135.65, -15.75], [135.75, -16.0], [135.53, -16.53], [135.0, -16.75], [134.47, -16.53], [134.25, -16.0], [134.35, -15.75], [134.25, -15.5], [134.47, -14.97]]]]}, "2010-06-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[134.47, -14.97], [135.0, -14.75], [135.53, -14.97], [135.75, -15.5], [135.65, -15.75], [135.75, -16.0], [135.53, -16.53], [135.0, -16.75], [134.47, -16.53], [134.25, -16.0], [134.35, -15.75], [134.25, -15.5], [134.47, -14.97]]]]}, "2010-06-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[132.47, -12.47], [133.0, -12.25], [133.5, -12.46], [134.0, -12.25], [134.25, -12.35], [134.5, -12.25], [134.75, -12.35], [135.0, -12.25], [135.53, -12.47], [135.75, -13.0], [135.65, -13.25], [135.75, -13.5], [135.65, -13.75], [135.75, -14.0], [135.53, -14.53], [135.18, -14.68], [135.15, -14.75], [135.18, -14.82], [135.53, -14.97], [135.75, -15.5], [135.65, -15.75], [135.75, -16.0], [135.53, -16.53], [135.0, -16.75], [134.47, -16.53], [134.25, -16.0], [134.35, -15.75], [134.32, -15.68], [134.25, -15.65], [134.0, -15.75], [133.47, -15.53], [133.32, -15.18], [132.97, -15.03], [132.75, -14.5], [132.85, -14.25], [132.82, -14.18], [132.47, -14.03], [132.25, -13.5], [132.35, -13.25], [132.25, -13.0], [132.47, -12.47]]]]}, "2010-06-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[132.47, -12.47], [133.0, -12.25], [133.5, -12.46], [134.0, -12.25], [134.25, -12.35], 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entire duration", "value": -7.014734259728698}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -4.81794004566655}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [18.361365064372364, 16.49154018757008, 18.431090066489276, 18.49164050016776, 18.63956777044052, 18.032758253774773, 18.872352384500687, 18.21910159387312]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [18.361365064372364, 16.352973617416296, 18.143743977061092, 18.199751063055658, 16.901262294988612, 16.587936517440482, 17.397561074716748, 17.875934282673768]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-5.114421700548178, -6.944735920237179, -4.883550006030362, -4.764353292585838, -4.615036277208307, -5.239419808557864, 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