{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:13:18.408309", "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": "2018-Jul-13_to_2018-Jul-16_348.5_11.0"}, "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": 2018070002273}, "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": "July 13 2018"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "July 16 2018"}, "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": 151807.19151491983}, "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": ["C\u00f4te d'Ivoire", "Guinea", "Mali", "Senegal"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Western-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": 11.0}, "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": 348.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "348.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 345.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 353.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 8.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 12.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2018-07-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-8.5, 9.75], [-7.97, 9.53], [-7.75, 9.0], [-7.97, 8.47], [-8.5, 8.25], [-9.03, 8.47], [-9.25, 9.0], [-9.03, 9.53], [-8.5, 9.75]]]]}, "2018-07-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-13.68, 12.68], [-13.53, 13.03], [-13.0, 13.25], [-12.47, 13.03], [-12.25, 12.5], [-12.03, 13.03], [-11.5, 13.25], [-11.25, 13.15], [-11.0, 13.25], [-10.75, 13.15], [-10.5, 13.25], [-9.97, 13.03], [-9.75, 12.5], [-9.87, 12.2], [-9.75, 12.15], [-9.5, 12.25], [-8.97, 12.03], [-8.75, 11.5], [-8.85, 11.25], [-8.82, 11.18], [-8.75, 11.15], [-8.5, 11.25], [-8.25, 11.15], [-8.0, 11.25], [-7.75, 11.15], [-7.5, 11.25], [-6.97, 11.03], [-6.82, 10.68], [-6.75, 10.65], [-6.5, 10.75], [-5.97, 10.53], [-5.75, 10.0], [-5.97, 9.47], [-6.5, 9.25], [-6.75, 9.35], [-7.0, 9.25], [-7.25, 9.35], [-7.32, 9.32], [-7.47, 8.97], [-7.82, 8.82], [-7.97, 8.47], [-8.5, 8.25], [-8.75, 8.35], [-9.0, 8.25], [-9.53, 8.47], [-9.68, 8.82], [-9.75, 8.85], [-10.0, 8.75], [-10.53, 8.97], [-10.68, 9.32], [-10.75, 9.35], [-11.0, 9.25], [-11.53, 9.47], [-11.68, 9.82], [-11.75, 9.85], [-12.0, 9.75], [-12.53, 9.97], [-12.68, 10.32], [-13.03, 10.47], [-13.18, 10.82], [-13.25, 10.85], [-13.5, 10.75], [-13.75, 10.85], [-14.0, 10.75], [-14.53, 10.97], [-14.75, 11.5], [-14.53, 12.03], [-14.18, 12.18], [-14.03, 12.53], [-13.68, 12.68]], [[-12.37, 12.2], [-12.25, 12.15], [-12.18, 12.18], [-12.15, 12.25], [-12.25, 12.5], [-12.37, 12.2]]]]}, "2018-07-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-13.68, 12.68], [-13.53, 13.03], [-13.0, 13.25], [-12.47, 13.03], [-12.25, 12.5], [-12.03, 13.03], [-11.5, 13.25], [-11.25, 13.15], [-11.0, 13.25], [-10.75, 13.15], [-10.5, 13.25], [-9.97, 13.03], [-9.75, 12.5], [-9.87, 12.2], [-9.75, 12.15], [-9.5, 12.25], [-8.97, 12.03], [-8.75, 11.5], [-8.85, 11.25], [-8.82, 11.18], [-8.75, 11.15], [-8.5, 11.25], [-8.25, 11.15], [-8.0, 11.25], [-7.75, 11.15], [-7.5, 11.25], [-6.97, 11.03], [-6.82, 10.68], [-6.75, 10.65], [-6.5, 10.75], [-5.97, 10.53], [-5.75, 10.0], [-5.97, 9.47], [-6.5, 9.25], [-6.75, 9.35], [-7.0, 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anomaly recorded over entire duration", "value": 2.3952927828634074}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.6344619937105047}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [24.1412101537407, 26.42234099909024, 26.450814520585027, 26.380021354135522]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [24.1412101537407, 29.20014721698692, 29.002338177797185, 29.353536564449257]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.1097657244794732, 1.6486888291263768, 1.6849730161263528, 1.5791110422338726]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.1097657244794732, 2.3952927828634074, 2.171732136925584, 2.156759521139236]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.450255501413377, 1.7563760226152219, 1.8481313292080044, 1.7322056461727868]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.450255501413377, 2.4197794429950354, 2.529340074978191, 2.4368367048846493]}}