{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:34:42.938230", "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-Mar-19_to_2023-Mar-21_13.0_26.0"}, "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": 2023030002078}, "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": "March 19 2023"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "March 21 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": 131933.39522807868}, "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": ["Algeria", "Libya", "Niger"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Sahara"]}, "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": 26.0}, "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": 13.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "13.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 10.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 14.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 22.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 28.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2023-03-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[10.25, 28.5], [10.47, 29.03], [11.0, 29.25], [11.53, 29.03], 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{"type": "MultiPolygon", "coordinates": [[[[10.25, 28.5], [10.47, 29.03], [11.0, 29.25], [11.53, 29.03], [11.68, 28.68], [12.03, 28.53], [12.18, 28.18], [12.53, 28.03], [12.68, 27.68], [12.75, 27.65], [13.0, 27.75], [13.53, 27.53], [13.75, 27.0], [13.65, 26.75], [13.68, 26.68], [14.03, 26.53], [14.25, 26.0], [14.15, 25.75], [14.25, 25.5], [14.15, 25.25], [14.18, 25.18], [14.53, 25.03], [14.68, 24.68], [15.03, 24.53], [15.25, 24.0], [15.15, 23.75], [15.25, 23.5], [15.03, 22.97], [14.5, 22.75], [14.25, 22.85], [14.18, 22.82], [14.03, 22.47], [13.5, 22.25], [13.25, 22.35], [13.18, 22.32], [13.03, 21.97], [12.5, 21.75], [12.25, 21.85], [12.0, 21.75], [11.47, 21.97], [11.32, 22.32], [10.97, 22.47], [10.75, 23.0], [10.85, 23.25], [10.75, 23.5], [10.85, 23.75], [10.75, 24.0], [10.85, 24.25], [10.75, 24.5], [10.85, 24.75], [10.75, 25.0], [10.97, 25.53], [11.32, 25.68], [11.35, 25.75], [11.25, 26.0], [11.47, 26.53], [11.82, 26.68], [11.85, 26.75], [11.82, 26.82], [11.47, 26.97], [11.32, 27.32], [10.97, 27.47], [10.82, 27.82], [10.47, 27.97], [10.25, 28.5]]]]}, "2023-03-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[10.25, 28.5], [10.47, 29.03], [11.0, 29.25], [11.53, 29.03], [11.68, 28.68], [12.03, 28.53], [12.18, 28.18], [12.53, 28.03], [12.68, 27.68], [12.75, 27.65], [13.0, 27.75], [13.53, 27.53], [13.75, 27.0], [13.65, 26.75], [13.68, 26.68], [14.03, 26.53], [14.25, 26.0], [14.15, 25.75], [14.25, 25.5], [14.15, 25.25], [14.18, 25.18], [14.53, 25.03], [14.68, 24.68], [15.03, 24.53], [15.25, 24.0], [15.15, 23.75], [15.25, 23.5], [15.03, 22.97], [14.5, 22.75], [14.25, 22.85], [14.18, 22.82], [14.03, 22.47], [13.5, 22.25], [13.25, 22.35], [13.18, 22.32], [13.03, 21.97], [12.5, 21.75], [12.25, 21.85], [12.0, 21.75], [11.47, 21.97], [11.32, 22.32], [10.97, 22.47], [10.75, 23.0], [10.85, 23.25], [10.75, 23.5], [10.85, 23.75], [10.75, 24.0], [10.85, 24.25], [10.75, 24.5], [10.85, 24.75], [10.75, 25.0], [10.97, 25.53], [11.32, 25.68], [11.35, 25.75], [11.25, 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"anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [7.0458336989197505, 9.36651016146675, 7.9075298629868485]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.5241020306310509, 2.008346433661004, 1.801317678495228]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.806070853268037, 2.678979449710131, 2.119191157037222]}}