{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:50:17.351382", "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": "2012-Apr-25_to_2012-Apr-28_20.5_27.0"}, "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": 2012040002604}, "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": "April 25 2012"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "April 28 2012"}, "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": 148418.09036072576}, "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": ["Libya"]}, "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": 27.0}, "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": 20.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "20.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 19.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 24.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 24.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 29.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2012-04-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[19.47, 28.03], [19.82, 28.18], [19.97, 28.53], [20.5, 28.75], [21.03, 28.53], [21.18, 28.18], [21.53, 28.03], [21.75, 27.5], [21.63, 27.2], [22.03, 27.03], [22.25, 26.5], [22.03, 25.97], [21.63, 25.8], [21.68, 25.68], [21.75, 25.65], [22.0, 25.75], [22.53, 25.53], [22.75, 25.0], [22.65, 24.75], [22.75, 24.5], [22.53, 23.97], [22.0, 23.75], [21.75, 23.85], [21.5, 23.75], [20.97, 23.97], [20.75, 24.5], [20.85, 24.75], [20.82, 24.82], [20.47, 24.97], [20.25, 25.5], [20.46, 26.0], [20.32, 26.32], [20.25, 26.35], [20.0, 26.25], [19.47, 26.47], [19.25, 27.0], [19.35, 27.25], [19.25, 27.5], [19.47, 28.03]]]]}, "2012-04-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[19.35, 27.25], [19.25, 27.5], [19.35, 27.75], [19.25, 28.0], [19.47, 28.53], [20.0, 28.75], [20.25, 28.65], [20.5, 28.75], [21.03, 28.53], [21.18, 28.18], [21.25, 28.15], [21.32, 28.18], [21.35, 28.25], [21.25, 28.5], [21.35, 28.75], [21.25, 29.0], [21.35, 29.25], [21.25, 29.5], [21.47, 30.03], [22.0, 30.25], [22.25, 30.15], [22.5, 30.25], [22.75, 30.15], [23.0, 30.25], [23.53, 30.03], [23.68, 29.68], [24.03, 29.53], [24.18, 29.18], [24.53, 29.03], [24.75, 28.5], [24.65, 28.25], [24.75, 28.0], [24.53, 27.47], [24.18, 27.32], [24.03, 26.97], [23.68, 26.82], [23.65, 26.75], [23.75, 26.5], [23.65, 26.25], [23.75, 26.0], [23.53, 25.47], [23.18, 25.32], [23.03, 24.97], [22.68, 24.82], [22.65, 24.75], [22.75, 24.5], [22.53, 23.97], [22.0, 23.75], [21.75, 23.85], [21.5, 23.75], [20.97, 23.97], [20.75, 24.5], [20.85, 24.75], [20.82, 24.82], [20.47, 24.97], [20.32, 25.32], [19.97, 25.47], [19.82, 25.82], [19.47, 25.97], [19.25, 26.5], [19.35, 26.75], [19.25, 27.0], [19.35, 27.25]]]]}, "2012-04-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[19.35, 27.25], [19.25, 27.5], [19.35, 27.75], [19.25, 28.0], [19.47, 28.53], [20.0, 28.75], [20.25, 28.65], [20.5, 28.75], [21.03, 28.53], [21.18, 28.18], [21.25, 28.15], [21.32, 28.18], [21.35, 28.25], [21.25, 28.5], [21.35, 28.75], [21.25, 29.0], [21.35, 29.25], [21.25, 29.5], [21.47, 30.03], [22.0, 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"description": "The daily evolution of mean t2m.", "value": [30.222572488525657, 30.025499887484102, 30.494220637469766, 30.16570493733292]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [31.89586230798085, 32.03025215645698, 32.34556887864164, 31.918033606180984]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [5.075394605257014, 5.169799305809191, 5.297995430082652, 4.622547376822902]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [6.113884164637682, 6.163315599162274, 6.1985236836587205, 5.308409420624969]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4138531793396223, 1.5557984550302038, 1.6007311139806655, 1.4084754863148807]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.6040603140747158, 1.701306287735045, 1.8250952589993672, 1.5439550981768377]}}