{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:53:38.964725", "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": "2026-Jun-18_to_2026-Jun-22_130.5_-19.5"}, "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": 2026060000591}, "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": "June 18 2026"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 22 2026"}, "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": 93414.55007934339}, "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": ["C.Australia", "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": -19.5}, "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": 130.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "130.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 128.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 132.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -21.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -17.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2026-06-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[129.75, -19.5], [129.97, -18.97], [130.5, -18.75], [130.75, -18.85], [131.0, -18.75], [131.53, -18.97], [131.68, -19.32], [131.75, -19.35], [132.0, -19.25], [132.53, -19.47], [132.68, -19.82], [133.03, -19.97], [133.25, -20.5], [133.03, -21.03], [132.5, -21.25], [132.25, -21.15], [132.0, -21.25], [131.75, -21.15], [131.5, -21.25], [130.97, -21.03], [130.82, -20.68], [130.47, -20.53], [130.32, -20.18], [129.97, -20.03], [129.75, -19.5]]]]}, "2026-06-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[128.25, -18.0], [128.47, -17.47], [129.0, -17.25], [129.25, -17.35], [129.5, -17.25], [129.75, -17.35], [130.0, -17.25], [130.53, -17.47], [130.68, -17.82], [130.75, -17.85], [131.0, -17.75], [131.53, -17.97], [131.68, -18.32], [132.03, -18.47], [132.18, -18.82], [132.25, -18.85], [132.5, -18.75], [133.03, -18.97], [133.25, -19.5], [133.04, -20.0], [133.25, -20.5], [133.03, -21.03], [132.5, -21.25], [132.25, -21.15], [132.0, -21.25], [131.75, -21.15], [131.5, -21.25], [131.25, -21.15], [131.0, -21.25], [130.47, -21.03], [130.25, -20.5], [130.35, -20.25], [130.32, -20.18], [130.25, -20.15], [130.0, -20.25], [129.47, -20.03], [129.32, -19.68], [128.97, -19.53], [128.75, -19.0], [128.85, -18.75], [128.82, -18.68], [128.47, -18.53], [128.25, -18.0]]]]}, "2026-06-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[128.25, -18.0], [128.47, -17.47], [128.82, -17.32], [128.97, -16.97], [129.5, -16.75], [129.75, -16.85], [130.0, -16.75], [130.53, -16.97], [130.68, -17.32], [130.75, -17.35], [131.0, -17.25], [131.53, -17.47], [131.68, -17.82], [132.03, -17.97], [132.25, -18.5], [132.15, -18.75], [132.18, -18.82], [132.25, -18.85], [132.5, -18.75], [133.03, -18.97], [133.25, -19.5], [133.04, -20.0], [133.25, -20.5], [133.03, -21.03], [132.68, -21.18], [132.53, -21.53], [132.0, -21.75], [131.75, -21.65], [131.5, -21.75], [130.97, -21.53], [130.82, -21.18], [130.47, -21.03], [130.25, -20.5], [130.35, -20.25], [130.32, -20.18], [130.25, -20.15], [130.0, -20.25], [129.47, -20.03], [129.32, -19.68], [128.97, -19.53], [128.75, -19.0], [128.85, -18.75], [128.82, -18.68], [128.47, -18.53], [128.25, -18.0]]]]}, "2026-06-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[128.25, -18.0], [128.47, -17.47], [128.82, -17.32], [128.97, -16.97], [129.5, -16.75], [129.75, -16.85], [130.0, -16.75], [130.53, -16.97], [130.68, -17.32], [130.75, -17.35], [131.0, -17.25], [131.53, -17.47], [131.68, -17.82], [132.03, -17.97], [132.25, -18.5], [132.15, -18.75], [132.18, -18.82], [132.25, -18.85], [132.5, -18.75], [133.03, -18.97], [133.25, -19.5], [133.04, -20.0], [133.25, -20.5], [133.03, -21.03], [132.68, -21.18], [132.53, -21.53], [132.0, -21.75], [131.75, -21.65], [131.5, -21.75], [130.97, -21.53], [130.82, -21.18], [130.47, -21.03], [130.25, -20.5], [130.35, -20.25], [130.32, -20.18], [130.25, -20.15], [130.0, -20.25], [129.47, -20.03], [129.32, -19.68], [128.97, -19.53], [128.75, -19.0], [128.85, -18.75], [128.82, -18.68], [128.47, -18.53], [128.25, -18.0]]]]}, "2026-06-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[128.25, -18.0], [128.47, -17.47], [128.82, -17.32], [128.97, -16.97], [129.5, -16.75], [129.75, -16.85], [130.0, -16.75], [130.53, -16.97], [130.68, -17.32], [130.75, -17.35], [131.0, -17.25], [131.53, -17.47], [131.68, -17.82], [132.03, -17.97], [132.25, -18.5], [132.15, -18.75], [132.18, -18.82], [132.53, -18.97], [132.75, -19.5], [132.53, -20.03], [132.18, -20.18], [132.15, -20.25], [132.18, -20.32], [132.53, -20.47], [132.75, -21.0], [132.53, -21.53], [132.0, -21.75], [131.75, -21.65], [131.5, -21.75], [130.97, -21.53], [130.82, -21.18], [130.47, -21.03], [130.25, -20.5], [130.35, -20.25], [130.32, -20.18], [130.25, -20.15], [130.0, -20.25], [129.47, -20.03], [129.32, -19.68], [128.97, -19.53], [128.75, -19.0], [128.85, -18.75], [128.82, -18.68], [128.47, -18.53], [128.25, -18.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -4.453964221289709}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -3.6844707999896977}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [13.366081492106105, 13.95442311604819, 14.16281661987307, 13.98569259643557, 14.142726244245296]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [12.395815785725915, 12.63532155354818, 12.310867563883505, 12.094022369384788, 12.4968086242676]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-3.8705550807402886, -3.9138293045086723, -3.630991462123516, -3.6333500805555037, -3.5460624062265884]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-4.286339311336178, -4.453964221289709, -3.9660758883146627, -4.273793155633939, -4.109337053040065]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.2936792738028382, -1.3128198580448116, -1.2673582420855571, -1.2996076664968899, -1.270105351829988]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.458203981614056, -1.4735641827044461, -1.3645690077953487, -1.5605159951288976, -1.511026442411993]}}