{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:23:06.285571", "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": "2021-Jan-22_to_2021-Jan-28_12.0_3.5"}, "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": 2021010002339}, "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 22 2021"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "January 28 2021"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 7}, "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": 64771.56884401223}, "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": ["Cameroon"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Central-Africa"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["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": 3.5}, "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": 12.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "12.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 10.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 13.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 2.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 4.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2021-01-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[10.97, 4.03], [11.5, 4.25], [11.75, 4.15], [12.0, 4.25], [12.53, 4.03], [12.75, 3.5], [12.65, 3.25], [12.75, 3.0], [12.53, 2.47], [12.0, 2.25], [11.75, 2.35], [11.5, 2.25], [10.97, 2.47], [10.75, 3.0], [10.85, 3.25], [10.75, 3.5], [10.97, 4.03]]]]}, "2021-01-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[10.85, 3.25], [10.75, 3.5], [10.85, 3.75], [10.75, 4.0], [10.97, 4.53], [11.5, 4.75], [11.75, 4.65], [12.0, 4.75], [12.53, 4.53], [12.75, 4.0], [12.65, 3.75], [12.68, 3.68], [13.03, 3.53], [13.25, 3.0], [13.03, 2.47], [12.5, 2.25], [12.25, 2.35], [12.18, 2.32], [12.03, 1.97], [11.5, 1.75], [10.97, 1.97], [10.75, 2.5], [10.85, 2.75], [10.75, 3.0], [10.85, 3.25]]]]}, "2021-01-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[10.35, 4.25], [10.25, 4.5], [10.47, 5.03], [11.0, 5.25], [11.25, 5.15], [11.5, 5.25], [11.75, 5.15], [12.0, 5.25], [12.25, 5.15], [12.5, 5.25], [13.03, 5.03], [13.18, 4.68], [13.25, 4.65], [13.5, 4.75], [14.03, 4.53], [14.25, 4.0], [14.03, 3.47], [13.68, 3.32], [13.53, 2.97], [13.18, 2.82], [13.03, 2.47], [12.5, 2.25], [12.25, 2.35], [12.18, 2.32], [12.03, 1.97], [11.5, 1.75], [10.97, 1.97], [10.75, 2.5], [10.85, 2.75], [10.82, 2.82], [10.47, 2.97], [10.25, 3.5], [10.35, 3.75], [10.25, 4.0], [10.35, 4.25]]]]}, "2021-01-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[9.97, 4.53], [10.32, 4.68], [10.47, 5.03], [11.0, 5.25], [11.25, 5.15], [11.5, 5.25], [11.75, 5.15], [12.0, 5.25], [12.25, 5.15], [12.5, 5.25], [13.03, 5.03], [13.18, 4.68], [13.25, 4.65], [13.5, 4.75], [14.03, 4.53], [14.25, 4.0], [14.03, 3.47], [13.68, 3.32], [13.53, 2.97], [13.18, 2.82], [13.03, 2.47], [12.5, 2.25], [12.25, 2.35], [12.18, 2.32], [12.03, 1.97], [11.5, 1.75], [10.97, 1.97], [10.75, 2.5], [10.85, 2.75], [10.82, 2.82], [10.75, 2.85], [10.5, 2.75], [9.97, 2.97], [9.75, 3.5], [9.85, 3.75], [9.75, 4.0], [9.97, 4.53]]]]}, "2021-01-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[9.97, 4.53], [10.32, 4.68], [10.47, 5.03], [11.0, 5.25], [11.25, 5.15], [11.5, 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26.135091316381875]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.288365527546219, 1.3444418292375602, 1.40706793202692, 1.5713275339166064, 1.7603461140111671, 1.3076646964396446, 1.3206429579195742]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.3377327540629835, 1.552378796397477, 1.9159340081254186, 2.1445618287330603, 2.440707157940153, 1.5069987242406455, 1.3206429579195742]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.437836784077011, 1.4981123570196775, 1.5490629442632586, 1.7692137719703056, 1.9537263618687963, 1.4450388033788542, 1.2679929528468294]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.543227501297341, 1.7212379851257196, 1.9819450028710672, 2.2378359137491732, 2.5168707980671887, 1.6105816783724434, 1.2679929528468294]}}