{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:27:30.405702", "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-Sep-27_to_2021-Sep-30_22.0_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": 2021090002661}, "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": "September 27 2021"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "September 30 2021"}, "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": 117340.11582411751}, "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 DRC"]}, "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": 22.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "22.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 19.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 23.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -0.25}, "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": {"2021-09-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[18.97, 3.53], [19.5, 3.75], [19.8, 3.63], [19.97, 4.03], [20.5, 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[23.75, 2.0], [23.53, 1.47], [23.18, 1.32], [23.15, 1.25], [23.25, 1.0], [23.03, 0.47], [22.68, 0.32], [22.53, -0.03], [22.18, -0.18], [22.03, -0.53], [21.5, -0.75], [20.97, -0.53], [20.75, 0.0], [20.85, 0.25], [20.82, 0.32], [20.47, 0.47], [20.32, 0.82], [20.25, 0.85], [20.0, 0.75], [19.47, 0.97], [19.25, 1.5], [19.35, 1.75], [19.32, 1.82], [18.97, 1.97], [18.75, 2.5], [18.85, 2.75], [18.75, 3.0], [18.97, 3.53]]]]}, "2021-09-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[18.97, 3.53], [19.5, 3.75], [19.8, 3.63], [19.97, 4.03], [20.5, 4.25], [20.75, 4.15], [21.0, 4.25], [21.25, 4.15], [21.5, 4.25], [21.75, 4.15], [21.82, 4.18], [21.85, 4.25], [21.75, 4.5], [21.97, 5.03], [22.5, 5.25], [22.75, 5.15], [23.0, 5.25], [23.53, 5.03], [23.75, 4.5], [23.65, 4.25], [23.75, 4.0], [23.54, 3.5], [23.75, 3.0], [23.54, 2.5], [23.75, 2.0], [23.53, 1.47], [23.18, 1.32], [23.15, 1.25], [23.25, 1.0], [23.03, 0.47], [22.68, 0.32], [22.53, -0.03], [22.18, -0.18], [22.03, -0.53], [21.5, -0.75], [20.97, -0.53], [20.75, 0.0], [20.85, 0.25], [20.82, 0.32], [20.47, 0.47], [20.32, 0.82], [20.25, 0.85], [20.0, 0.75], [19.47, 0.97], [19.25, 1.5], [19.35, 1.75], [19.32, 1.82], [18.97, 1.97], [18.75, 2.5], [18.85, 2.75], [18.75, 3.0], [18.97, 3.53]]]]}, "2021-09-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[18.97, 3.53], [19.5, 3.75], [19.8, 3.63], [19.97, 4.03], [20.5, 4.25], [20.75, 4.15], [21.0, 4.25], [21.25, 4.15], [21.5, 4.25], [21.75, 4.15], [21.82, 4.18], [21.85, 4.25], [21.75, 4.5], [21.97, 5.03], [22.5, 5.25], [22.75, 5.15], [23.0, 5.25], [23.53, 5.03], [23.75, 4.5], [23.65, 4.25], [23.75, 4.0], [23.54, 3.5], [23.75, 3.0], [23.54, 2.5], [23.75, 2.0], [23.53, 1.47], [23.18, 1.32], [23.15, 1.25], [23.25, 1.0], [23.03, 0.47], [22.5, 0.25], [22.25, 0.35], [22.0, 0.25], [21.47, 0.47], [21.25, 1.0], [21.35, 1.25], [21.32, 1.32], [21.25, 1.35], [21.18, 1.32], [21.03, 0.97], [20.5, 0.75], [20.25, 0.85], [20.0, 0.75], [19.47, 0.97], [19.25, 1.5], 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"anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.4217762842995398, 2.0600574039387993, 2.650694265321931, 2.421814187156599]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4928530331977754, 1.666325980005417, 2.292865774648117, 1.8552193874722511]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.7251662543632234, 2.499187801711517, 3.2184791873969494, 2.668804698822662]}}