{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:53:56.978834", "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": "2024-Dec-05_to_2024-Dec-09_134.0_-14.5"}, "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": 2024120000153}, "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": "December 05 2024"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "December 09 2024"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 5}, "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": 86759.04818310274}, "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": ["Arafura Sea"]}, "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": -14.5}, "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": 134.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "134.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 133.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 136.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -16.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -12.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2024-12-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[132.96, -15.0], [132.75, -14.5], [132.97, -13.97], [133.5, -13.75], [133.75, -13.85], [133.82, -13.82], [133.97, -13.47], [134.32, -13.32], [134.47, -12.97], [134.82, -12.82], [134.85, -12.75], [134.75, -12.5], [134.97, -11.97], [135.5, -11.75], [135.75, -11.85], [136.0, -11.75], [136.25, -11.85], [136.5, -11.75], [137.03, -11.97], [137.25, -12.5], [137.15, -12.75], [137.25, -13.0], [137.03, -13.53], [136.68, -13.68], [136.53, -14.03], [136.18, -14.18], [136.03, -14.53], [135.68, -14.68], [135.65, -14.75], [135.75, -15.0], [135.65, -15.25], [135.75, -15.5], [135.65, -15.75], [135.75, -16.0], [135.53, -16.53], [135.18, -16.68], [135.03, -17.03], [134.5, -17.25], [134.25, -17.15], [134.0, -17.25], [133.47, -17.03], [133.32, -16.68], [132.97, -16.53], [132.75, -16.0], [132.85, -15.75], [132.75, -15.5], [132.96, -15.0]]]]}, "2024-12-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[132.96, -15.0], [132.75, -14.5], [132.97, -13.97], [133.5, -13.75], [133.75, -13.85], [133.82, -13.82], [133.97, -13.47], [134.32, -13.32], [134.47, -12.97], [134.82, -12.82], [134.85, -12.75], [134.75, -12.5], [134.97, -11.97], [135.5, -11.75], [135.75, -11.85], [136.0, -11.75], [136.25, -11.85], [136.5, -11.75], [137.03, -11.97], [137.25, -12.5], [137.15, -12.75], [137.25, -13.0], [137.03, -13.53], [136.68, -13.68], [136.53, -14.03], [136.18, -14.18], [136.03, -14.53], [135.68, -14.68], [135.65, -14.75], [135.75, -15.0], [135.65, -15.25], [135.75, -15.5], [135.65, -15.75], [135.75, -16.0], [135.53, -16.53], [135.18, -16.68], [135.03, -17.03], [134.5, -17.25], [134.25, -17.15], [134.0, -17.25], [133.47, -17.03], [133.32, -16.68], [132.97, -16.53], [132.75, -16.0], [132.85, -15.75], [132.75, -15.5], [132.96, -15.0]]]]}, "2024-12-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[132.96, -15.0], [132.75, -14.5], [132.97, -13.97], [133.5, -13.75], [133.75, -13.85], [133.82, -13.82], [133.97, -13.47], [134.32, -13.32], [134.47, -12.97], [134.82, -12.82], [134.85, -12.75], [134.75, -12.5], [134.97, -11.97], [135.5, 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[133.47, -15.03], [133.25, -14.5], [133.47, -13.97], [134.0, -13.75]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -5.231918143652592}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -3.3313909113258666}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [27.444853499840065, 26.592821704382175, 27.562059854090933, 28.801040903727255, 28.377673085530603]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [26.768572743733728, 25.597802734375023, 26.30886357625326, 28.801040903727255, 28.377673085530603]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-3.1063601929885984, -3.9378813107446207, -2.968314469376482, -2.881773249599462, -3.2478946382213394]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-4.276944229006006, -5.231918143652592, -3.9362969343259238, -2.881773249599462, -3.2478946382213394]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.7354463843343433, -2.1887303715067383, -1.6884606916888325, -1.3814409846062286, -1.5778022030789383]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.13445742394346, -2.6471752688649244, -2.11523769546252, -1.3814409846062286, -1.5778022030789383]}}