{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 15:54:26.932783", "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": "2020-Jan-01_to_2020-Jan-04_26.5_5.5"}, "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": 2020010001067}, "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": "January 01 2020"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "January 04 2020"}, "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": 70779.01305885805}, "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": ["Central African Republic", "Congo, The Democratic Republic of the", "South Sudan"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Africa", "Africa", "Africa"]}, "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": 5.5}, "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": 26.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "26.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 25.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 30.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 4.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 6.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[25.5, 6.75], [25.75, 6.65], [26.0, 6.75], [26.25, 6.65], [26.5, 6.75], [26.75, 6.65], [27.0, 6.75], [27.25, 6.65], [27.5, 6.75], [27.75, 6.65], [28.0, 6.75], [28.25, 6.65], [28.5, 6.75], [29.03, 6.53], [29.18, 6.18], [29.53, 6.03], [29.75, 5.5], [29.65, 5.25], [29.75, 5.0], [29.65, 4.75], [29.68, 4.68], [29.75, 4.65], [30.0, 4.75], [30.53, 4.53], [30.75, 4.0], [30.53, 3.47], [30.0, 3.25], [29.75, 3.35], [29.5, 3.25], [28.97, 3.47], [28.82, 3.82], [28.47, 3.97], [28.32, 4.32], [28.25, 4.35], [28.0, 4.25], [27.75, 4.35], [27.5, 4.25], [27.25, 4.35], [27.0, 4.25], [26.47, 4.47], [26.32, 4.82], [26.25, 4.85], [26.0, 4.75], [25.75, 4.85], [25.5, 4.75], [24.97, 4.97], [24.75, 5.5], [24.85, 5.75], [24.75, 6.0], [24.97, 6.53], [25.5, 6.75]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Central-Africa", "N.Eastern-Africa"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2020-01-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[24.97, 5.47], [24.75, 6.0], [24.97, 6.53], [25.5, 6.75], [25.75, 6.65], [26.0, 6.75], [26.25, 6.65], [26.5, 6.75], [26.75, 6.65], [27.0, 6.75], [27.25, 6.65], [27.5, 6.75], [27.75, 6.65], [28.0, 6.75], [28.25, 6.65], [28.5, 6.75], [29.03, 6.53], [29.25, 6.0], [29.15, 5.75], [29.18, 5.68], [29.53, 5.53], [29.75, 5.0], [29.65, 4.75], [29.68, 4.68], [30.03, 4.53], [30.25, 4.0], [30.03, 3.47], [29.5, 3.25], [28.97, 3.47], [28.82, 3.82], [28.47, 3.97], [28.3, 4.38], [28.0, 4.25], [27.75, 4.35], [27.5, 4.25], [26.97, 4.47], [26.82, 4.82], [26.75, 4.85], [26.5, 4.75], [26.25, 4.85], [26.0, 4.75], [25.47, 4.97], [25.32, 5.32], [24.97, 5.47]]]]}, "2020-01-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[24.75, 6.0], [24.97, 6.53], [25.5, 6.75], [25.75, 6.65], [26.0, 6.75], [26.25, 6.65], [26.5, 6.75], [26.75, 6.65], [27.0, 6.75], [27.25, 6.65], [27.5, 6.75], [27.75, 6.65], [28.0, 6.75], [28.25, 6.65], [28.5, 6.75], [29.03, 6.53], [29.18, 6.18], [29.53, 6.03], [29.75, 5.5], [29.65, 5.25], [29.75, 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4.75], [24.97, 4.97], [24.75, 5.5], [24.85, 5.75], [24.75, 6.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 3.820236390173875}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 2.3668561117354323}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [29.435303431781335, 29.98958446658952, 30.439011560772315, 29.533949720755345]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [30.251225972781583, 30.85437566735976, 31.148460959316196, 30.374769280010128]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.8122244241129155, 2.4512427707255684, 2.949338322631283, 2.1118745102986516]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [2.297756359544792, 3.232168638938788, 3.820236390173875, 2.711432154175043]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.1824310408681096, 1.573348751756032, 1.851706464231767, 1.2641386784764799]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.400858126754925, 1.9132965684567018, 2.310600670312083, 1.5682048757749545]}}