{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:58:35.126930", "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-Apr-20_to_2024-Apr-23_300.5_-32.5"}, "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": 2024040001730}, "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": "April 20 2024"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "April 23 2024"}, "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": 146743.256597483}, "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", "Uruguay"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["America", "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": -32.5}, "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": 300.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "300.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 299.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 305.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -33.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -30.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-60.75, -31.35], [-60.5, -31.25], [-60.2, -31.38], [-60.15, -31.25], [-60.18, -31.18], [-60.53, -31.03], [-60.75, -30.5], [-60.53, -29.97], [-60.18, -29.82], [-60.03, -29.47], [-59.5, -29.25], [-59.25, -29.35], [-59.0, -29.25], [-58.75, -29.35], [-58.5, -29.25], [-58.25, -29.35], [-58.0, -29.25], [-57.47, -29.47], [-57.32, -29.82], [-56.97, -29.97], [-56.75, -30.5], [-56.85, -30.75], [-56.75, -31.0], [-56.85, -31.25], [-56.82, -31.32], [-56.75, -31.35], [-56.5, -31.25], [-55.97, -31.47], [-55.75, -32.0], [-55.85, -32.25], [-55.82, -32.32], [-55.47, -32.47], [-55.32, -32.82], [-55.25, -32.85], [-55.0, -32.75], [-54.47, -32.97], [-54.25, -33.5], [-54.47, -34.03], [-55.0, -34.25], [-55.25, -34.15], [-55.5, -34.25], [-55.75, -34.15], [-56.0, -34.25], [-56.25, -34.15], [-56.5, -34.25], [-56.75, -34.15], [-57.0, -34.25], [-57.5, -34.04], [-58.0, -34.25], [-58.25, -34.15], [-58.5, -34.25], [-59.03, -34.03], [-59.18, -33.68], [-59.25, -33.65], [-59.5, -33.75], [-59.75, -33.65], [-60.0, -33.75], [-60.25, -33.65], [-60.5, -33.75], [-61.03, -33.53], [-61.18, -33.18], [-61.53, -33.03], [-61.75, -32.5], [-61.65, -32.25], [-61.75, -32.0], [-61.53, -31.47], [-61.0, -31.25], [-60.75, -31.35]]]]}}, "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": {"2024-04-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-61.75, -32.0], [-61.52999999999997, -31.47], [-61.0, -31.25], [-60.75, -31.35], [-60.5, -31.25], [-59.97000000000003, -31.47], [-59.81999999999999, -31.82], [-59.75, -31.85], [-59.5, -31.75], [-58.97000000000003, -31.97], [-58.81999999999999, -32.32], [-58.75, -32.35], [-58.5, -32.25], [-57.97000000000003, -32.47], [-57.81999999999999, -32.82], [-57.47000000000003, -32.97], [-57.25, -33.5], [-57.47000000000003, -34.03], [-58.0, -34.25], [-58.25, -34.15], [-58.5, -34.25], [-59.02999999999997, -34.03], [-59.18000000000001, -33.68], [-59.25, -33.65], [-59.5, -33.75], [-59.75, -33.65], [-60.0, -33.75], [-60.25, -33.65], [-60.5, -33.75], [-61.02999999999997, -33.53], [-61.18000000000001, -33.18], [-61.52999999999997, -33.03], [-61.75, -32.5], [-61.64999999999998, -32.25], [-61.75, -32.0]]]]}, "2024-04-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-61.75, -32.0], [-61.52999999999997, -31.47], [-61.0, -31.25], [-60.75, -31.35], [-60.5, -31.25], [-60.19999999999999, -31.38], [-60.14999999999998, -31.25], [-60.18000000000001, -31.18], [-60.52999999999997, -31.03], [-60.75, -30.5], [-60.52999999999997, -29.97], [-60.18000000000001, -29.82], [-60.02999999999997, -29.47], [-59.5, -29.25], [-59.25, -29.35], [-59.0, -29.25], [-58.75, -29.35], [-58.5, -29.25], [-58.25, -29.35], [-58.0, -29.25], [-57.47000000000003, -29.47], [-57.31999999999999, -29.82], [-56.97000000000003, -29.97], [-56.75, -30.5], [-56.85000000000002, -30.75], [-56.75, -31.0], [-56.85000000000002, -31.25], [-56.81999999999999, -31.32], [-56.75, -31.35], [-56.5, -31.25], [-55.97000000000003, -31.47], [-55.75, -32.0], [-55.85000000000002, -32.25], [-55.81999999999999, -32.32], [-55.47000000000003, -32.47], [-55.31999999999999, -32.82], [-55.25, -32.85], [-55.0, -32.75], [-54.47000000000003, -32.97], [-54.25, -33.5], [-54.47000000000003, -34.03], [-55.0, -34.25], [-55.25, -34.15], [-55.5, -34.25], [-55.75, -34.15], [-56.0, -34.25], [-56.25, -34.15], [-56.5, -34.25], [-56.75, -34.15], [-57.0, -34.25], [-57.5, -34.04], [-58.0, -34.25], [-58.25, -34.15], [-58.5, -34.25], [-59.02999999999997, -34.03], [-59.18000000000001, -33.68], [-59.25, -33.65], [-59.5, -33.75], [-59.75, -33.65], [-60.0, -33.75], [-60.25, -33.65], [-60.5, -33.75], [-61.02999999999997, -33.53], [-61.18000000000001, -33.18], [-61.52999999999997, -33.03], [-61.75, -32.5], [-61.64999999999998, -32.25], [-61.75, -32.0]]]]}, "2024-04-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-61.75, -32.0], [-61.52999999999997, -31.47], [-61.0, -31.25], [-60.75, -31.35], [-60.5, -31.25], [-60.19999999999999, -31.38], [-60.14999999999998, -31.25], [-60.18000000000001, -31.18], [-60.52999999999997, -31.03], [-60.75, -30.5], [-60.52999999999997, -29.97], [-60.18000000000001, -29.82], [-60.02999999999997, -29.47], [-59.5, -29.25], [-59.25, -29.35], [-59.0, -29.25], [-58.75, -29.35], [-58.5, -29.25], [-58.25, -29.35], [-58.0, -29.25], [-57.47000000000003, -29.47], [-57.31999999999999, -29.82], [-56.97000000000003, -29.97], [-56.75, -30.5], [-56.85000000000002, -30.75], [-56.75, -31.0], [-56.85000000000002, -31.25], [-56.81999999999999, -31.32], [-56.75, -31.35], [-56.5, -31.25], [-55.97000000000003, -31.47], [-55.75, -32.0], [-55.85000000000002, -32.25], [-55.81999999999999, -32.32], [-55.47000000000003, -32.47], [-55.31999999999999, -32.82], [-55.25, -32.85], [-55.0, -32.75], [-54.47000000000003, -32.97], [-54.25, -33.5], [-54.47000000000003, -34.03], [-55.0, -34.25], [-55.25, -34.15], [-55.5, -34.25], [-55.75, -34.15], [-56.0, -34.25], [-56.25, -34.15], [-56.5, -34.25], [-56.75, -34.15], [-57.0, -34.25], [-57.5, -34.04], [-58.0, -34.25], [-58.25, -34.15], [-58.5, -34.25], [-59.02999999999997, -34.03], [-59.18000000000001, -33.68], [-59.25, -33.65], [-59.5, -33.75], [-59.75, -33.65], [-60.0, -33.75], [-60.25, -33.65], [-60.5, -33.75], [-61.02999999999997, -33.53], [-61.18000000000001, -33.18], [-61.52999999999997, -33.03], [-61.75, -32.5], [-61.64999999999998, -32.25], [-61.75, -32.0]]]]}, "2024-04-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-60.52999999999997, -31.03], [-60.75, -30.5], [-60.52999999999997, -29.97], [-60.18000000000001, -29.82], [-60.02999999999997, -29.47], [-59.5, -29.25], [-59.25, -29.35], [-59.0, -29.25], [-58.75, -29.35], [-58.5, -29.25], [-58.25, -29.35], [-58.0, -29.25], [-57.47000000000003, -29.47], [-57.31999999999999, -29.82], [-56.97000000000003, -29.97], [-56.75, -30.5], [-56.85000000000002, -30.75], [-56.75, -31.0], [-56.85000000000002, -31.25], [-56.81999999999999, -31.32], [-56.75, -31.35], [-56.5, -31.25], [-55.97000000000003, -31.47], [-55.75, -32.0], [-55.85000000000002, -32.25], [-55.81999999999999, -32.32], [-55.47000000000003, -32.47], [-55.31999999999999, -32.82], [-55.25, -32.85], [-55.0, -32.75], [-54.47000000000003, -32.97], [-54.25, -33.5], [-54.47000000000003, -34.03], [-55.0, -34.25], [-55.25, -34.15], [-55.5, -34.25], [-55.75, -34.15], [-56.0, -34.25], [-56.25, -34.15], [-56.5, -34.25], [-56.75, -34.15], [-57.0, -34.25], [-57.52999999999997, -34.03], [-57.68000000000001, -33.68], [-57.75, -33.65], [-58.0, -33.75], [-58.25, -33.65], [-58.5, -33.75], [-59.02999999999997, -33.53], [-59.18000000000001, -33.18], [-59.25, -33.15], [-59.5, -33.25], [-60.02999999999997, -33.03], [-60.25, -32.5], [-60.14999999999998, -32.25], [-60.25, -32.0], [-60.14999999999998, -31.75], [-60.25, -31.5], [-60.14999999999998, -31.25], [-60.18000000000001, -31.18], [-60.52999999999997, -31.03]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 5.924656490707434}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 4.2619874636164585}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [21.366784617316796, 22.104250205832784, 21.56385031036416, 21.637861870899826]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [21.88155507798791, 23.505151294541008, 22.91352327232795, 23.32072721382974]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [3.9888935458796615, 4.525174649777533, 4.111055947174643, 4.201185317534244]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [4.3369556560362525, 5.924656490707434, 4.56880064443385, 4.654709448542519]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.3622286715334897, 1.542719328822669, 1.398554018996178, 1.3907915454444622]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.510116732859045, 1.9748484761539116, 1.5338903458034832, 1.5467212823841123]}}