{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:49:10.589379", "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": "2011-Dec-05_to_2011-Dec-10_22.5_1.0"}, "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": 2011120001885}, "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": "December 05 2011"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "December 10 2011"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 6}, "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": 67994.53347212932}, "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": ["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": 1.0}, "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": 22.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "22.5\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": -0.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 1.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2011-12-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[22.5, 1.75], [23.03, 1.53], [23.25, 1.0], [23.03, 0.47], [22.5, 0.25], [21.97, 0.47], [21.75, 1.0], [21.97, 1.53], [22.5, 1.75]]]]}, "2011-12-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[19.47, -0.03], [19.25, 0.5], [19.47, 1.03], [20.0, 1.25], [20.53, 1.03], [20.75, 0.5], [20.53, -0.03], [20.0, -0.25], [19.47, -0.03]]], [[[21.97, 1.53], [22.5, 1.75], [22.75, 1.65], [22.82, 1.68], [22.97, 2.03], [23.5, 2.25], [23.75, 2.15], [24.0, 2.25], [24.53, 2.03], [24.75, 1.5], [24.65, 1.25], [24.75, 1.0], [24.65, 0.75], [24.75, 0.5], [24.65, 0.25], [24.75, 0.0], [24.53, -0.53], [24.18, -0.68], [24.03, -1.03], [23.5, -1.25], [22.97, -1.03], [22.82, -0.68], [22.47, -0.53], [22.25, 0.0], [22.35, 0.25], [22.32, 0.32], [21.97, 0.47], [21.75, 1.0], [21.97, 1.53]]]]}, "2011-12-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[19.25, 0.5], [19.47, 1.03], [20.0, 1.25], [20.25, 1.15], [20.5, 1.25], [21.03, 1.03], [21.25, 0.5], [21.03, -0.03], [20.5, -0.25], [20.25, -0.15], [20.0, -0.25], [19.47, -0.03], [19.25, 0.5]]], [[[23.0, 2.04], [23.5, 2.25], [23.75, 2.15], [24.0, 2.25], [24.53, 2.03], [24.75, 1.5], [24.65, 1.25], [24.75, 1.0], [24.65, 0.75], [24.75, 0.5], [24.65, 0.25], [24.75, 0.0], [24.53, -0.53], [24.18, -0.68], [24.03, -1.03], [23.5, -1.25], [22.97, -1.03], [22.82, -0.68], [22.47, -0.53], [22.25, 0.0], [22.35, 0.25], [22.32, 0.32], [22.25, 0.35], [22.0, 0.25], [21.47, 0.47], [21.25, 1.0], [21.47, 1.53], [21.82, 1.68], [21.97, 2.03], [22.5, 2.25], [23.0, 2.04]]]]}, "2011-12-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[19.47, 1.53], [19.82, 1.68], [19.97, 2.03], [20.5, 2.25], [21.03, 2.03], [21.18, 1.68], [21.25, 1.65], [21.5, 1.75], [21.75, 1.65], [21.82, 1.68], [21.97, 2.03], [22.5, 2.25], [23.0, 2.04], [23.5, 2.25], [23.75, 2.15], [24.0, 2.25], [24.53, 2.03], [24.75, 1.5], [24.65, 1.25], [24.75, 1.0], [24.65, 0.75], [24.75, 0.5], [24.65, 0.25], [24.75, 0.0], [24.53, -0.53], [24.18, -0.68], [24.03, -1.03], [23.5, -1.25], [22.97, -1.03], [22.82, -0.68], [22.47, -0.53], [22.25, 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t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.541276381218152, 1.8022652082618815, 1.9366759989326237, 2.747593308308151, 2.2130228419192073, 1.9388426141721702]}}