{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:50:17.789922", "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-28_to_2012-May-02_16.0_-7.5"}, "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": 2012040002723}, "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 28 2012"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "May 02 2012"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 5}, "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": 80024.89109467638}, "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": ["Angola", "Congo", "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": -7.5}, "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": 16.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "16.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 15.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 18.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -7.75}, "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": {"2012-04-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[14.97, -8.03], [14.75, -7.5], [14.97, -6.97], [15.5, -6.75], [15.75, -6.85], [16.0, -6.75], [16.53, -6.97], [16.75, -7.5], [16.53, -8.03], [16.0, -8.25], [15.75, -8.15], [15.5, -8.25], [14.97, -8.03]]]]}, "2012-04-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[14.97, -8.03], [14.75, -7.5], [14.97, -6.97], [15.5, -6.75], [15.75, -6.85], [16.0, -6.75], [16.53, -6.97], [16.75, -7.5], [16.53, -8.03], [16.0, -8.25], [15.75, -8.15], [15.5, -8.25], [14.97, -8.03]]]]}, "2012-04-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[14.85, -6.75], [14.75, -6.5], [14.85, -6.25], [14.75, -6.0], [14.97, -5.47], [15.32, -5.32], [15.47, -4.97], [15.82, -4.82], [15.85, -4.75], [15.75, -4.5], [15.97, -3.97], [16.32, -3.82], [16.35, -3.75], [16.32, -3.68], [15.97, -3.53], [15.82, -3.18], [15.47, -3.03], [15.25, -2.5], [15.35, -2.25], [15.25, -2.0], [15.47, -1.47], [16.0, -1.25], [16.53, -1.47], [16.68, -1.82], [17.03, -1.97], [17.25, -2.5], [17.15, -2.75], [17.18, -2.82], [17.53, -2.97], [17.7, -3.37], [18.0, -3.25], [18.53, -3.47], [18.75, -4.0], [18.53, -4.53], [18.18, -4.68], [18.15, -4.75], [18.18, -4.82], [18.53, -4.97], [18.75, -5.5], [18.53, -6.03], [18.0, -6.25], [17.5, -6.04], [17.18, -6.18], [17.15, -6.25], [17.25, -6.5], [17.15, -6.75], [17.25, -7.0], [17.03, -7.53], [16.68, -7.68], [16.53, -8.03], [16.0, -8.25], [15.75, -8.15], [15.5, -8.25], [14.97, -8.03], [14.75, -7.5], [14.85, -7.25], [14.75, -7.0], [14.85, -6.75]]]]}, "2012-05-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[14.85, -6.75], [14.75, -6.5], [14.85, -6.25], [14.75, -6.0], [14.97, -5.47], [15.32, -5.32], [15.47, -4.97], [15.82, -4.82], [15.85, -4.75], [15.75, -4.5], [15.97, -3.97], [16.32, -3.82], [16.35, -3.75], [16.32, -3.68], [15.97, -3.53], [15.82, -3.18], [15.47, -3.03], [15.25, -2.5], [15.35, -2.25], [15.25, -2.0], [15.47, -1.47], [16.0, -1.25], [16.53, -1.47], [16.68, -1.82], [17.03, -1.97], [17.25, -2.5], [17.15, -2.75], [17.18, -2.82], [17.53, -2.97], [17.7, -3.37], [18.0, -3.25], [18.53, -3.47], 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"value": [24.676645470134133, 24.695184610267404, 27.700871080605168, 28.335212048794006, 28.0641303644731]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.328182918725389, 1.332778239436749, 1.6242927958938913, 2.2930695909797296, 2.0101560374628926]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.5728964101546126, 1.5294310011830703, 2.104936333233127, 3.010742963267603, 3.1120904172374253]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.5017505805157212, 1.4680584163603492, 1.563463826085185, 2.1811633687835643, 1.9248648643734634]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.6771385919855042, 1.5877284870683022, 1.8371238557328624, 2.821722284315761, 2.856856886994838]}}