{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:20:30.554651", "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": "2022-May-17_to_2022-May-21_291.5_-55.0"}, "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": 2022050002299}, "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": "May 17 2022"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "May 21 2022"}, "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": "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": 51215.02973013863}, "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", "Chile"]}, "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": ["Pacific 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": -55.0}, "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": 291.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "291.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 288.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 293.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -56.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -54.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-72.53, -54.47], [-72.0, -54.25], [-71.75, -54.35], [-71.68, -54.32], [-71.53, -53.97], [-71.0, -53.75], [-70.75, -53.85], [-70.5, -53.75], [-70.25, -53.85], [-70.0, -53.75], [-69.75, -53.85], [-69.5, -53.75], [-69.25, -53.85], [-69.0, -53.75], [-68.75, -53.85], [-68.5, -53.75], [-68.25, -53.85], [-68.0, -53.75], [-67.47, -53.97], [-67.32, -54.32], [-67.25, -54.35], [-67.0, -54.25], [-66.47, -54.47], [-66.25, -55.0], [-66.47, -55.53], [-67.0, -55.75], [-67.25, -55.65], [-67.37, -55.7], [-67.25, -56.0], [-67.47, -56.53], [-68.0, -56.75], [-68.25, -56.65], [-68.5, -56.75], [-68.75, -56.65], [-69.0, -56.75], [-69.25, -56.65], [-69.5, -56.75], [-69.75, -56.65], [-70.0, -56.75], [-70.53, -56.53], [-70.68, -56.18], [-70.75, -56.15], [-71.0, -56.25], [-71.53, -56.03], [-71.68, -55.68], [-71.75, -55.65], [-72.0, -55.75], [-72.53, -55.53], [-72.75, -55.0], [-72.53, -54.47]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["S.South-America", "Southern-Ocean"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2022-05-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-70.0, -55.25], [-70.52999999999997, -55.03], [-70.75, -54.5], [-70.52999999999997, -53.97], [-70.0, -53.75], [-69.75, -53.85], [-69.5, -53.75], [-69.25, -53.85], [-69.0, -53.75], [-68.47000000000003, -53.97], [-68.32, -54.32], [-67.97000000000003, -54.47], [-67.75, -55.0], [-67.97000000000003, -55.53], [-68.5, -55.75], [-68.75, -55.65], [-69.0, -55.75], [-69.52999999999997, -55.53], [-69.68, -55.18], [-69.75, -55.15], [-70.0, -55.25]]]]}, "2022-05-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-72.0, -55.75], [-72.52999999999997, -55.53], [-72.75, -55.0], [-72.52999999999997, -54.47], [-72.0, -54.25], [-71.75, -54.35], [-71.68, -54.32], [-71.52999999999997, -53.97], [-71.0, -53.75], [-70.75, -53.85], [-70.5, -53.75], [-70.25, -53.85], [-70.0, -53.75], [-69.75, -53.85], [-69.5, -53.75], [-69.25, -53.85], [-69.0, -53.75], [-68.75, -53.85], [-68.5, 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[-69.02999999999997, -55.53], [-69.25, -55.0], [-69.02999999999997, -54.47]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 5.623872646136022}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 3.3475065726015893}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [3.3295721203959374, 6.4880803436048495, 6.997102724721799, 6.617284640166815, 4.144120946547389]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [4.020251687185919, 8.488702673724333, 9.686025183959714, 8.547183102268491, 4.144120946547389]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.8209652488735286, 2.9408728659216274, 3.6966158193708103, 3.4775018883694413, 3.8785583713856795]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [3.0695049586586265, 4.433702131886719, 5.124403670447464, 5.623872646136022, 3.8785583713856795]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.223764992494861, 1.6333787995966078, 2.0769136653157987, 1.8371888061152062, 1.3838745682392621]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.307573960087404, 2.1154693777253994, 2.7213503368467347, 2.2707333734064927, 1.3838745682392621]}}