{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:58:09.594032", "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": "2025-Dec-27_to_2025-Dec-30_309.5_-15.5"}, "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": 2025120002354}, "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 27 2025"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "December 30 2025"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 4}, "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": "Heat wave"}, "area": {"name": "Area", "description": "The area (in square meters) encompassing all grid points under the influence of an event during its lifetime.", "value": 60025.73227437461}, "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": ["Brazil"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.E.South-America", "South-American-Monsoon"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["South America"]}, "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": -15.5}, "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": 309.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "309.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 309.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 312.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -15.75}, "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": {"2025-12-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-51.15, -14.75], [-51.25, -14.5], [-51.15, -14.25], 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[-51.25, -13.5], [-51.03, -12.97], [-50.68, -12.82], [-50.65, -12.75], [-50.75, -12.5], [-50.53, -11.97], [-50.0, -11.75], [-49.47, -11.97], [-49.25, -12.5], [-49.35, -12.75], [-49.3, -12.88], [-49.18, -12.82], [-49.03, -12.47], [-48.5, -12.25], [-48.25, -12.35], [-48.0, -12.25], [-47.75, -12.35], [-47.5, -12.25], [-46.97, -12.47], [-46.75, -13.0], [-46.97, -13.53], [-47.32, -13.68], [-47.35, -13.75], [-47.25, -14.0], [-47.35, -14.25], [-47.25, -14.5], [-47.47, -15.03], [-48.0, -15.25], [-48.53, -15.03], [-48.68, -14.68], [-48.75, -14.65], [-49.0, -14.75], [-49.25, -14.65], [-49.32, -14.68], [-49.47, -15.03], [-49.82, -15.18], [-49.85, -15.25], [-49.75, -15.5], [-49.97, -16.03], [-50.5, -16.25], [-51.03, -16.03], [-51.25, -15.5], [-51.15, -15.25], [-51.25, -15.0], [-51.15, -14.75]]]]}, "2025-12-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-51.15, -14.75], [-51.25, -14.5], [-51.15, -14.25], [-51.25, -14.0], [-51.15, -13.75], [-51.25, -13.5], [-51.03, -12.97], [-50.68, -12.82], [-50.65, -12.75], [-50.75, -12.5], [-50.53, -11.97], [-50.0, -11.75], [-49.47, -11.97], [-49.25, -12.5], [-49.35, -12.75], [-49.3, -12.88], [-49.18, -12.82], [-49.03, -12.47], [-48.5, -12.25], [-48.25, -12.35], [-48.0, -12.25], [-47.75, -12.35], [-47.5, -12.25], [-46.97, -12.47], [-46.75, -13.0], [-46.97, -13.53], [-47.32, -13.68], [-47.35, -13.75], [-47.25, -14.0], [-47.35, -14.25], [-47.25, -14.5], [-47.47, -15.03], [-48.0, -15.25], [-48.53, -15.03], [-48.68, -14.68], [-48.75, -14.65], [-49.0, -14.75], [-49.25, -14.65], [-49.32, -14.68], [-49.47, -15.03], [-49.82, -15.18], [-49.85, -15.25], [-49.75, -15.5], [-49.97, -16.03], [-50.5, -16.25], [-51.03, -16.03], [-51.25, -15.5], [-51.15, -15.25], [-51.25, -15.0], [-51.15, -14.75]]]]}, "2025-12-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-51.03, -14.47], [-50.5, -14.25], [-49.97, -14.47], [-49.75, -15.0], [-49.85, -15.25], [-49.75, -15.5], [-49.97, -16.03], [-50.5, -16.25], [-51.03, -16.03], [-51.25, -15.5], [-51.15, -15.25], [-51.25, -15.0], [-51.03, -14.47]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 3.7242762618492407}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 2.5076003934867943}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [28.658950551350927, 28.323695119222066, 28.11847432454431, 28.29312159220376]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [29.627464548746786, 29.490727996826195, 28.848743693033896, 28.405222829182946]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.7881437858780402, 2.4779024664672646, 2.2952940129375063, 2.122209545262507]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [3.7242762618492407, 3.116409949716285, 2.540407433669145, 2.2011548504013376]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.7379405169358129, 1.5320460510037783, 1.4328922145672751, 1.3829285609012785]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.1747945190586937, 1.7910956262100035, 1.5411938226562483, 1.4519164062981396]}}