{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 17:07:29.326018", "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-Aug-26_to_2025-Aug-29_293.0_-34.5"}, "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": 2025080002685}, "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": "August 26 2025"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 29 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": 76820.86328937068}, "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": ["Argentina"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["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": -34.5}, "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": 293.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "293.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 292.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 295.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -39.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -33.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-68.15, -34.25], [-68.25, -34.0], [-68.15, -33.75], [-68.25, -33.5], [-68.03, -32.97], [-67.5, -32.75], [-66.97, -32.97], [-66.82, -33.32], [-66.47, -33.47], [-66.32, -33.82], [-65.97, -33.97], [-65.75, -34.5], [-65.97, -35.03], [-66.32, -35.18], [-66.37, -35.3], [-65.97, -35.47], [-65.82, -35.82], [-65.47, -35.97], [-65.25, -36.5], [-65.35, -36.75], [-65.32, -36.82], [-64.97, -36.97], [-64.82, -37.32], [-64.47, -37.47], [-64.25, -38.0], [-64.35, -38.25], [-64.25, -38.5], [-64.47, -39.03], [-64.82, -39.18], [-64.97, -39.53], [-65.5, -39.75], [-65.75, -39.65], [-66.0, -39.75], [-66.53, -39.53], [-66.68, -39.18], [-67.03, -39.03], [-67.25, -38.5], [-67.15, -38.25], [-67.18, -38.18], [-67.53, -38.03], [-67.75, -37.5], [-67.65, -37.25], [-67.75, -37.0], [-67.65, -36.75], [-67.75, -36.5], [-67.65, -36.25], [-67.68, -36.18], [-68.03, -36.03], [-68.25, -35.5], [-68.15, -35.25], [-68.25, -35.0], [-68.15, -34.75], [-68.25, -34.5], [-68.15, -34.25]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["S.E.South-America"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2025-08-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-67.64999999999998, -34.75], [-67.75, -34.5], [-67.64999999999998, -34.25], [-67.75, -34.0], [-67.52999999999997, -33.47], [-67.0, -33.25], [-66.47000000000003, -33.47], [-66.32, -33.82], [-65.97000000000003, -33.97], [-65.75, -34.5], [-65.97000000000003, -35.03], [-66.32, -35.18], [-66.47000000000003, -35.53], [-66.82, -35.68], [-66.97000000000003, -36.03], [-67.5, -36.25], [-68.02999999999997, -36.03], [-68.25, -35.5], [-68.02999999999997, -34.97], [-67.68, -34.82], [-67.64999999999998, -34.75]]]]}, "2025-08-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-68.25, -35.0], [-68.14999999999998, -34.75], [-68.25, -34.5], [-68.14999999999998, -34.25], [-68.25, -34.0], [-68.14999999999998, -33.75], [-68.25, -33.5], [-68.02999999999997, -32.97], [-67.5, -32.75], [-66.97000000000003, -32.97], [-66.82, -33.32], [-66.47000000000003, -33.47], [-66.32, -33.82], [-65.97000000000003, -33.97], [-65.75, -34.5], [-65.97000000000003, -35.03], [-66.32, -35.18], [-66.37, -35.3], [-65.97000000000003, -35.47], [-65.82, -35.82], [-65.47000000000003, -35.97], [-65.25, -36.5], [-65.35000000000002, -36.75], [-65.32, -36.82], [-64.97000000000003, -36.97], [-64.82, -37.32], [-64.47000000000003, -37.47], [-64.25, -38.0], [-64.35000000000002, -38.25], [-64.25, -38.5], [-64.47000000000003, -39.03], [-64.82, -39.18], [-64.97000000000003, -39.53], [-65.5, -39.75], [-65.75, -39.65], [-66.0, -39.75], [-66.52999999999997, -39.53], [-66.68, -39.18], [-67.02999999999997, -39.03], [-67.25, -38.5], [-67.14999999999998, -38.25], [-67.18, -38.18], [-67.52999999999997, -38.03], [-67.75, -37.5], [-67.64999999999998, -37.25], [-67.75, -37.0], [-67.64999999999998, -36.75], [-67.75, -36.5], [-67.64999999999998, -36.25], [-67.68, -36.18], [-68.02999999999997, -36.03], [-68.25, -35.5], [-68.14999999999998, -35.25], [-68.25, -35.0]]]]}, "2025-08-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-68.25, -35.0], [-68.14999999999998, -34.75], [-68.25, -34.5], [-68.14999999999998, -34.25], [-68.25, -34.0], [-68.14999999999998, -33.75], [-68.25, -33.5], [-68.02999999999997, -32.97], [-67.5, -32.75], [-66.97000000000003, -32.97], [-66.82, -33.32], [-66.47000000000003, -33.47], [-66.32, -33.82], [-65.97000000000003, -33.97], [-65.75, -34.5], [-65.97000000000003, -35.03], [-66.32, -35.18], [-66.37, -35.3], [-65.97000000000003, -35.47], [-65.82, -35.82], [-65.47000000000003, -35.97], [-65.25, -36.5], [-65.35000000000002, -36.75], [-65.32, -36.82], [-64.97000000000003, -36.97], [-64.82, -37.32], [-64.47000000000003, -37.47], [-64.25, -38.0], [-64.35000000000002, -38.25], [-64.25, -38.5], [-64.47000000000003, -39.03], [-64.82, -39.18], [-64.97000000000003, -39.53], [-65.5, -39.75], [-65.75, -39.65], [-66.0, -39.75], [-66.52999999999997, -39.53], [-66.68, 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[-65.47000000000003, -35.97], [-65.25, -36.5], [-65.35000000000002, -36.75], [-65.32, -36.82], [-64.97000000000003, -36.97], [-64.82, -37.32], [-64.47000000000003, -37.47], [-64.25, -38.0], [-64.35000000000002, -38.25], [-64.25, -38.5], [-64.47000000000003, -39.03], [-64.82, -39.18], [-64.97000000000003, -39.53], [-65.5, -39.75], [-65.75, -39.65], [-66.0, -39.75], [-66.52999999999997, -39.53], [-66.68, -39.18], [-67.02999999999997, -39.03], [-67.25, -38.5], [-67.14999999999998, -38.25], [-67.18, -38.18], [-67.52999999999997, -38.03], [-67.75, -37.5], [-67.64999999999998, -37.25], [-67.75, -37.0], [-67.64999999999998, -36.75], [-67.75, -36.5], [-67.64999999999998, -36.25], [-67.68, -36.18], [-68.02999999999997, -36.03], [-68.25, -35.5], [-68.14999999999998, -35.25], [-68.25, -35.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 7.47915315159986}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 6.183275913602792}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [19.182712300618505, 18.4938976821079, 19.00158035934618, 18.05477113269626]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [19.76959381103518, 21.159761047363304, 20.68319473266604, 20.80946502685549]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [5.438764625498959, 6.035010374326983, 6.626200702522958, 5.98999447437222]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [5.9349916632373265, 6.882173314477939, 7.47915315159986, 6.751247962254126]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.290344777365347, 1.5369054030990206, 1.700224637989337, 1.5496202188869341]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.3274934202494904, 1.6808966815079973, 2.1713077468674413, 1.7995000085560553]}}