{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 17:06:35.428697", "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-Jul-12_to_2025-Jul-15_299.5_-42.0"}, "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": 2025070002033}, "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": "July 12 2025"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "July 15 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": 73318.02752062469}, "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": ["Atlantic Ocean"]}, "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": -42.0}, "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": 299.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "299.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 297.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 301.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -42.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -38.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-61.03, -41.47], [-60.5, -41.25], [-60.25, -41.35], [-60.18, -41.32], [-60.15, -41.25], [-60.25, -41.0], [-60.15, -40.75], [-60.18, -40.68], [-60.53, -40.53], [-60.68, -40.18], [-60.75, -40.15], [-61.0, -40.25], [-61.53, -40.03], [-61.68, -39.68], [-61.8, -39.62], [-61.97, -40.03], [-62.5, -40.25], [-63.03, -40.03], [-63.25, -39.5], [-63.15, -39.25], [-63.18, -39.18], [-63.53, -39.03], [-63.75, -38.5], [-63.53, -37.97], [-63.18, -37.82], [-63.03, -37.47], [-62.5, -37.25], [-61.97, -37.47], [-61.82, -37.82], [-61.47, -37.97], [-61.32, -38.32], [-61.25, -38.35], [-61.0, -38.25], [-60.5, -38.46], [-60.0, -38.25], [-59.75, -38.35], [-59.5, -38.25], [-59.25, -38.35], [-59.0, -38.25], [-58.47, -38.47], [-58.25, -39.0], [-58.35, -39.25], [-58.25, -39.5], [-58.35, -39.75], [-58.32, -39.82], [-57.97, -39.97], [-57.75, -40.5], [-57.96, -41.0], [-57.75, -41.5], [-57.85, -41.75], [-57.75, -42.0], [-57.97, -42.53], [-58.5, -42.75], [-58.75, -42.65], [-58.82, -42.68], [-58.97, -43.03], [-59.5, -43.25], [-60.03, -43.03], [-60.18, -42.68], [-60.25, -42.65], [-60.5, -42.75], [-61.03, -42.53], [-61.25, -42.0], [-61.03, -41.47]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["S.E.South-America", "S.South-America"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2025-07-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-60.5, -42.75], [-61.02999999999997, -42.53], [-61.25, -42.0], [-61.02999999999997, -41.47], [-60.5, -41.25], [-60.25, -41.35], [-60.0, -41.25], [-59.47000000000003, -41.47], [-59.31999999999999, -41.82], [-58.97000000000003, -41.97], [-58.75, -42.5], [-58.97000000000003, -43.03], [-59.5, -43.25], [-60.02999999999997, -43.03], [-60.18000000000001, -42.68], [-60.25, -42.65], [-60.5, -42.75]]]]}, "2025-07-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-63.52999999999997, -39.03], [-63.75, -38.5], [-63.52999999999997, -37.97], [-63.18000000000001, -37.82], [-63.02999999999997, -37.47], [-62.5, 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"value": 3.0666974042682327}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [10.67243431939022, 11.691816686814832, 11.461046247584875, 11.662082188103795]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [11.373958841959677, 13.069885508219443, 12.528253173828148, 12.579342142740927]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.044186139268428, 3.124088559301728, 2.973388565628988, 3.2015677909384794]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [2.211107510109173, 5.836108703068476, 5.291438468324884, 5.83521676868844]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.277218739894139, 1.5428848035784262, 1.452842367616564, 1.560722883390961]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.3182300292341884, 1.8929924196097812, 1.5896861794670936, 1.7114170200097543]}}