{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-05-20 10:45:30.272308", "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": "2023-May-16_to_2023-May-18_300.0_-49.5"}, "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": 2023050002077}, "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 16 2023"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "May 18 2023"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 3}, "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": 64816.800586311656}, "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": ["Falkland Islands"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["S.South-America"]}, "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": ["South 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": -49.5}, "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": 300.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "300.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 298.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 304.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -51.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -48.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2023-05-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-61.25, -50.5], [-61.03, -49.97], [-60.68, -49.82], [-60.65, -49.75], [-60.68, -49.68], [-61.03, -49.53], [-61.25, -49.0], [-61.03, -48.47], [-60.5, -48.25], [-60.25, -48.35], [-60.0, -48.25], [-59.47, -48.47], [-59.32, -48.82], [-58.97, -48.97], [-58.82, -49.32], [-58.75, -49.35], [-58.5, -49.25], [-57.97, -49.47], [-57.82, -49.82], [-57.75, -49.85], [-57.68, -49.82], [-57.53, -49.47], [-57.0, -49.25], [-56.47, -49.47], [-56.32, -49.82], [-56.25, -49.85], [-56.0, -49.75], [-55.47, -49.97], [-55.25, -50.5], [-55.35, -50.75], [-55.25, -51.0], [-55.35, -51.25], [-55.25, -51.5], [-55.47, -52.03], [-56.0, -52.25], [-56.25, -52.15], [-56.5, -52.25], [-57.03, -52.03], [-57.18, -51.68], [-57.25, -51.65], [-57.5, -51.75], [-57.75, -51.65], [-58.0, -51.75], [-58.25, -51.65], [-58.5, -51.75], [-58.75, -51.65], [-59.0, -51.75], [-59.25, -51.65], [-59.5, -51.75], [-59.75, -51.65], [-59.82, -51.68], [-59.97, -52.03], [-60.5, -52.25], [-60.75, -52.15], [-61.0, -52.25], [-61.53, -52.03], [-61.75, -51.5], [-61.53, -50.97], [-61.18, -50.82], [-61.15, -50.75], [-61.25, -50.5]]]]}, "2023-05-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-61.25, -50.5], [-61.03, -49.97], [-60.68, -49.82], [-60.65, -49.75], [-60.68, -49.68], [-61.03, -49.53], [-61.25, -49.0], [-61.03, -48.47], [-60.5, -48.25], [-60.25, -48.35], [-60.0, -48.25], [-59.47, -48.47], [-59.32, -48.82], [-58.97, -48.97], [-58.82, -49.32], [-58.75, -49.35], [-58.5, -49.25], [-57.97, -49.47], [-57.82, -49.82], [-57.75, -49.85], [-57.68, -49.82], [-57.53, -49.47], [-57.0, -49.25], [-56.47, -49.47], [-56.32, -49.82], [-56.25, -49.85], [-56.0, -49.75], [-55.47, -49.97], [-55.25, -50.5], [-55.35, -50.75], [-55.25, -51.0], [-55.35, -51.25], [-55.25, -51.5], [-55.47, -52.03], [-56.0, -52.25], [-56.25, -52.15], [-56.5, -52.25], [-57.03, -52.03], [-57.18, -51.68], [-57.25, -51.65], [-57.5, -51.75], [-57.75, -51.65], [-58.0, -51.75], [-58.25, -51.65], [-58.5, -51.75], [-58.75, -51.65], [-59.0, -51.75], [-59.25, -51.65], [-59.5, -51.75], [-59.75, -51.65], [-59.82, -51.68], [-59.97, -52.03], [-60.5, -52.25], [-60.75, -52.15], [-61.0, -52.25], [-61.53, -52.03], [-61.75, -51.5], [-61.53, -50.97], [-61.18, -50.82], [-61.15, -50.75], [-61.25, -50.5]]]]}, "2023-05-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-61.25, -50.5], [-61.03, -49.97], [-60.68, -49.82], [-60.65, -49.75], [-60.68, -49.68], [-61.03, -49.53], [-61.25, -49.0], [-61.03, -48.47], [-60.5, -48.25], [-60.25, -48.35], [-60.0, -48.25], [-59.47, -48.47], [-59.32, -48.82], [-58.97, -48.97], [-58.82, -49.32], [-58.75, -49.35], [-58.5, -49.25], [-57.97, -49.47], [-57.82, -49.82], [-57.75, -49.85], [-57.68, -49.82], [-57.53, -49.47], [-57.0, -49.25], [-56.47, -49.47], [-56.32, -49.82], [-56.25, -49.85], [-56.0, -49.75], [-55.47, -49.97], [-55.25, -50.5], [-55.35, -50.75], [-55.25, -51.0], [-55.35, -51.25], [-55.25, -51.5], [-55.47, -52.03], [-56.0, -52.25], [-56.25, -52.15], [-56.5, -52.25], [-57.03, -52.03], [-57.18, -51.68], [-57.25, -51.65], [-57.5, -51.75], [-57.75, -51.65], [-58.0, -51.75], [-58.25, -51.65], [-58.5, -51.75], [-58.75, -51.65], [-59.0, -51.75], [-59.25, -51.65], [-59.5, -51.75], [-59.75, -51.65], [-59.82, -51.68], [-59.97, -52.03], [-60.5, -52.25], [-60.75, -52.15], [-61.0, -52.25], [-61.53, -52.03], [-61.75, -51.5], [-61.53, -50.97], [-61.18, -50.82], [-61.15, -50.75], [-61.25, -50.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 2.4876312004033707}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.9835465218547708}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [9.124836683836293, 8.862404965245332, 8.873061193776266]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [10.363476375155926, 10.067303913246803, 9.719116064200932]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.1332167732294867, 1.8843616391935263, 1.9330611531412991]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [2.4876312004033707, 2.211429374602403, 2.153903300638717]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4559427419176725, 1.2818832748518532, 1.305892489629984]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.7397982484110133, 1.535640511774914, 1.425384429694432]}}