{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:23:33.269696", "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-Oct-13_to_2022-Oct-18_302.5_-4.0"}, "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": 2022100000585}, "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": "October 13 2022"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "October 18 2022"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 6}, "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": "Cold spell"}, "area": {"name": "Area", "description": "The area (in square meters) encompassing all grid points under the influence of an event during its lifetime.", "value": 67791.39734731925}, "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": ["Brazil"]}, "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": -4.0}, "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": 302.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "302.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 301.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 306.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -6.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -3.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-58.68, -5.82], [-58.65, -5.75], [-58.75, -5.5], [-58.53, -4.97], [-58.0, -4.75], [-58.53, -4.53], [-58.75, -4.0], 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"value": ["N.South-America"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2022-10-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-58.02999999999997, -3.47], [-57.5, -3.25], [-56.97000000000003, -3.47], [-56.75, -4.0], [-56.97000000000003, -4.53], [-57.5, -4.75], [-58.02999999999997, -4.53], [-58.25, -4.0], [-58.02999999999997, -3.47]]]]}, "2022-10-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-58.02999999999997, -3.47], [-57.5, -3.25], [-56.97000000000003, -3.47], [-56.75, -4.0], [-56.97000000000003, -4.53], [-57.5, -4.75], [-58.02999999999997, -4.53], [-58.25, -4.0], [-58.02999999999997, -3.47]]]]}, "2022-10-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-58.52999999999997, -4.97], [-58.0, -4.75], [-57.75, -4.85], [-57.5, -4.75], [-56.97000000000003, -4.97], [-56.75, -5.5], [-56.85000000000002, -5.75], [-56.75, -6.0], 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25.37680992210062, 25.300313989892743, 25.273100039581948]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [24.68211048831097, 25.68125793452731, 25.32525471451902, 24.6001895084882, 24.539375138851426, 24.611274274988716]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-2.71282746463595, -1.7543510398019748, -1.8298945790494276, -2.050581464049057, -2.105103970226803, -2.074684973822908]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-2.71282746463595, -1.7543510398019748, -2.0930018617581254, -2.4170952718499166, -2.9273703777423066, -2.5011418529081766]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-2.1869649988678206, -1.3508559480770554, -1.383951983325676, -1.5942638010738504, -1.6037908603220905, -1.6052100769258284]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.1869649988678206, -1.3508559480770554, -1.5727539244845392, -1.8321973768794426, -2.040635645082133, -1.8435033279657134]}}