{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:07:31.621697", "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": "2017-Mar-11_to_2017-Mar-14_350.5_10.0"}, "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": 2017030001513}, "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 11 2017"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "March 14 2017"}, "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": 54785.372171404306}, "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", "Sierra Leone"]}, "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": 10.0}, "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": 350.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "350.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 348.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 353.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 8.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 11.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2017-03-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-11.75, 9.0], [-11.53, 9.53], [-11.18, 9.68], [-11.03, 10.03], [-10.68, 10.18], [-10.53, 10.53], [-10.0, 10.75], [-9.75, 10.65], [-9.68, 10.68], [-9.53, 11.03], [-9.0, 11.25], [-8.47, 11.03], [-8.32, 10.68], [-8.25, 10.65], [-8.0, 10.75], [-7.5, 10.54], [-7.0, 10.75], [-6.47, 10.53], [-6.25, 10.0], [-6.47, 9.47], [-7.0, 9.25], [-7.5, 9.46], [-8.0, 9.25], [-8.25, 9.35], [-8.5, 9.25], [-8.75, 9.35], [-9.0, 9.25], [-9.25, 9.35], [-9.32, 9.32], [-9.47, 8.97], [-9.82, 8.82], [-9.85, 8.75], [-9.75, 8.5], [-9.97, 7.97], [-10.5, 7.75], [-11.03, 7.97], [-11.18, 8.32], [-11.53, 8.47], [-11.75, 9.0]]]]}, "2017-03-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-11.75, 9.0], [-11.53, 9.53], [-11.18, 9.68], [-11.03, 10.03], [-10.68, 10.18], [-10.53, 10.53], [-10.0, 10.75], [-9.75, 10.65], [-9.68, 10.68], [-9.65, 10.75], [-9.75, 11.0], [-9.53, 11.53], [-9.0, 11.75], [-8.75, 11.65], [-8.5, 11.75], [-8.25, 11.65], [-8.0, 11.75], [-7.47, 11.53], [-7.32, 11.18], [-6.97, 11.03], [-6.82, 10.68], [-6.47, 10.53], [-6.25, 10.0], [-6.47, 9.47], [-7.0, 9.25], [-7.5, 9.46], [-8.0, 9.25], [-8.25, 9.35], [-8.5, 9.25], [-8.75, 9.35], [-9.0, 9.25], [-9.25, 9.35], [-9.32, 9.32], [-9.47, 8.97], [-9.82, 8.82], [-9.85, 8.75], [-9.75, 8.5], [-9.97, 7.97], [-10.5, 7.75], [-11.03, 7.97], [-11.18, 8.32], [-11.53, 8.47], [-11.75, 9.0]]]]}, "2017-03-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-11.75, 9.0], [-11.53, 9.53], [-11.18, 9.68], [-11.03, 10.03], [-10.68, 10.18], [-10.53, 10.53], [-10.0, 10.75], [-9.75, 10.65], [-9.68, 10.68], [-9.65, 10.75], [-9.75, 11.0], [-9.53, 11.53], [-9.0, 11.75], [-8.75, 11.65], [-8.5, 11.75], [-8.25, 11.65], [-8.0, 11.75], [-7.47, 11.53], [-7.32, 11.18], [-6.97, 11.03], [-6.82, 10.68], [-6.47, 10.53], [-6.25, 10.0], [-6.47, 9.47], [-7.0, 9.25], [-7.5, 9.46], [-8.0, 9.25], [-8.25, 9.35], [-8.5, 9.25], [-8.75, 9.35], [-9.0, 9.25], [-9.25, 9.35], [-9.32, 9.32], [-9.47, 8.97], [-9.82, 8.82], [-9.85, 8.75], [-9.75, 8.5], [-9.97, 7.97], [-10.5, 7.75], [-11.03, 7.97], [-11.18, 8.32], [-11.53, 8.47], [-11.75, 9.0]]]]}, "2017-03-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-9.75, 11.0], [-9.53, 11.53], [-9.0, 11.75], [-8.75, 11.65], [-8.5, 11.75], [-8.25, 11.65], [-8.0, 11.75], [-7.47, 11.53], [-7.32, 11.18], [-6.97, 11.03], [-6.82, 10.68], [-6.47, 10.53], [-6.25, 10.0], [-6.47, 9.47], [-7.0, 9.25], [-7.53, 9.47], [-7.68, 9.82], [-7.75, 9.85], [-8.0, 9.75], [-8.25, 9.85], [-8.5, 9.75], [-9.03, 9.97], [-9.18, 10.32], [-9.53, 10.47], [-9.75, 11.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 2.663429759826613}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.903108374339087}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [30.906970328366583, 31.223738727579928, 31.062798191698732, 31.625801311690623]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [32.65160526110736, 32.743854765803064, 32.24009867056037, 32.468656043394674]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.0276059277989256, 1.992227589177544, 1.8215378425305682, 1.6702730977595235]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [2.550437105573451, 2.663429759826613, 2.06781930318499, 1.8326240918939334]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.7353466773199564, 1.6621387813146111, 1.4648957592092868, 1.300287420241569]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.238601115670766, 2.2080804101327227, 1.6842819495906969, 1.3828651585023848]}}