{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:12:52.133785", "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-May-26_to_2018-Jun-02_346.5_3.0"}, "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": 2018050002649}, "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": "May 26 2018"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 02 2018"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 8}, "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": 151035.08568676573}, "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", "Liberia"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Equatorial.Atlantic-Ocean", "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": ["Gulf of Guinea", "North Atlantic Ocean"]}, "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": 3.0}, "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": 346.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "346.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 344.75}, "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": 2.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 6.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2018-05-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-11.0, 3.75], [-10.47, 3.53], [-10.25, 3.0], [-10.47, 2.47], [-11.0, 2.25], [-11.53, 2.47], [-11.75, 3.0], [-11.53, 3.53], [-11.0, 3.75]]]]}, "2018-05-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-11.0, 3.75], [-10.47, 3.53], [-10.25, 3.0], [-10.47, 2.47], [-11.0, 2.25], [-11.53, 2.47], [-11.75, 3.0], [-11.53, 3.53], [-11.0, 3.75]]]]}, "2018-05-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-14.53, 4.03], [-14.18, 4.18], [-14.03, 4.53], [-13.5, 4.75], [-13.25, 4.65], [-13.18, 4.68], [-13.03, 5.03], [-12.68, 5.18], [-12.53, 5.53], [-12.0, 5.75], [-11.75, 5.65], [-11.68, 5.68], [-11.53, 6.03], [-11.0, 6.25], [-10.75, 6.15], [-10.68, 6.18], [-10.53, 6.53], [-10.0, 6.75], [-9.47, 6.53], [-9.32, 6.18], [-8.97, 6.03], [-8.75, 5.5], [-8.85, 5.25], [-8.82, 5.18], [-8.5, 5.04], [-8.0, 5.25], [-7.75, 5.15], [-7.5, 5.25], [-7.25, 5.15], [-7.0, 5.25], [-6.47, 5.03], [-6.25, 4.5], [-6.47, 3.97], [-6.82, 3.82], [-6.97, 3.47], [-7.5, 3.25], [-7.75, 3.35], [-8.0, 3.25], [-8.25, 3.35], [-8.5, 3.25], [-8.75, 3.35], [-9.0, 3.25], [-9.25, 3.35], [-9.5, 3.25], [-9.75, 3.35], [-10.0, 3.25], [-10.25, 3.35], [-10.32, 3.32], [-10.35, 3.25], [-10.25, 3.0], [-10.47, 2.47], [-11.0, 2.25], [-11.53, 2.47], [-11.68, 2.82], [-11.75, 2.85], [-12.0, 2.75], [-12.25, 2.85], [-12.5, 2.75], [-12.75, 2.85], [-12.82, 2.82], [-12.97, 2.47], [-13.5, 2.25], [-13.75, 2.35], [-14.0, 2.25], [-14.53, 2.47], [-14.75, 3.0], [-14.65, 3.25], [-14.75, 3.5], [-14.53, 4.03]]]]}, "2018-05-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-15.75, 4.5], [-15.53, 5.03], [-15.0, 5.25], [-14.47, 5.03], [-14.32, 4.68], [-14.25, 4.65], [-14.0, 4.75], [-13.75, 4.65], [-13.5, 4.75], [-13.25, 4.65], [-13.18, 4.68], [-13.03, 5.03], [-12.68, 5.18], [-12.53, 5.53], [-12.0, 5.75], [-11.75, 5.65], [-11.68, 5.68], [-11.53, 6.03], [-11.0, 6.25], [-10.75, 6.15], [-10.68, 6.18], [-10.53, 6.53], [-10.0, 6.75], [-9.47, 6.53], [-9.32, 6.18], [-8.97, 6.03], [-8.75, 5.5], [-8.85, 5.25], [-8.82, 5.18], [-8.5, 5.04], [-8.0, 5.25], [-7.75, 5.15], [-7.5, 5.25], [-7.25, 5.15], [-7.0, 5.25], [-6.47, 5.03], [-6.25, 4.5], [-6.47, 3.97], [-6.82, 3.82], [-6.97, 3.47], [-7.5, 3.25], [-7.75, 3.35], [-8.0, 3.25], [-8.25, 3.35], [-8.5, 3.25], [-8.75, 3.35], [-9.0, 3.25], [-9.25, 3.35], [-9.5, 3.25], [-9.75, 3.35], [-10.0, 3.25], [-10.25, 3.35], [-10.32, 3.32], [-10.35, 3.25], [-10.25, 3.0], [-10.47, 2.47], [-11.0, 2.25], [-11.53, 2.47], [-11.68, 2.82], [-11.75, 2.85], [-12.0, 2.75], [-12.25, 2.85], [-12.5, 2.75], [-12.75, 2.85], [-12.82, 2.82], [-12.97, 2.47], [-13.32, 2.32], [-13.47, 1.97], [-14.0, 1.75], [-14.53, 1.97], [-14.75, 2.5], [-14.65, 2.75], [-14.75, 3.0], [-14.65, 3.25], [-14.68, 3.32], [-15.03, 3.47], [-15.18, 3.82], [-15.53, 3.97], [-15.75, 4.5]]]]}, "2018-05-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-15.75, 4.5], [-15.53, 5.03], [-15.0, 5.25], [-14.47, 5.03], [-14.32, 4.68], [-14.25, 4.65], [-14.0, 4.75], [-13.75, 4.65], [-13.5, 4.75], [-13.25, 4.65], [-13.18, 4.68], [-13.03, 5.03], [-12.68, 5.18], [-12.53, 5.53], [-12.0, 5.75], [-11.75, 5.65], [-11.68, 5.68], [-11.53, 6.03], [-11.0, 6.25], [-10.75, 6.15], [-10.68, 6.18], [-10.53, 6.53], [-10.0, 6.75], [-9.47, 6.53], [-9.32, 6.18], [-8.97, 6.03], [-8.75, 5.5], [-8.85, 5.25], [-8.82, 5.18], [-8.5, 5.04], [-8.0, 5.25], [-7.75, 5.15], [-7.5, 5.25], [-7.25, 5.15], [-7.0, 5.25], [-6.47, 5.03], [-6.25, 4.5], [-6.47, 3.97], [-6.82, 3.82], [-6.97, 3.47], [-7.5, 3.25], [-7.75, 3.35], [-8.0, 3.25], [-8.25, 3.35], [-8.5, 3.25], [-8.75, 3.35], [-9.0, 3.25], [-9.25, 3.35], [-9.5, 3.25], [-9.75, 3.35], [-10.0, 3.25], [-10.25, 3.35], [-10.32, 3.32], [-10.47, 2.97], [-11.0, 2.75], [-11.25, 2.85], [-11.5, 2.75], [-11.75, 2.85], [-12.0, 2.75], [-12.25, 2.85], [-12.5, 2.75], [-12.75, 2.85], [-12.82, 2.82], [-12.97, 2.47], [-13.32, 2.32], [-13.47, 1.97], [-14.0, 1.75], [-14.53, 1.97], [-14.75, 2.5], [-14.65, 2.75], [-14.75, 3.0], [-14.65, 3.25], [-14.68, 3.32], [-15.03, 3.47], [-15.18, 3.82], [-15.53, 3.97], [-15.75, 4.5]]]]}, "2018-05-31T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-15.75, 4.5], [-15.53, 5.03], [-15.0, 5.25], [-14.47, 5.03], [-14.32, 4.68], [-14.25, 4.65], [-14.0, 4.75], [-13.47, 4.53], [-13.32, 4.18], [-12.97, 4.03], [-12.75, 3.5], [-12.85, 3.25], [-12.75, 3.0], [-12.97, 2.47], [-13.32, 2.32], [-13.47, 1.97], [-14.0, 1.75], [-14.53, 1.97], [-14.75, 2.5], [-14.65, 2.75], [-14.75, 3.0], [-14.62, 3.3], [-15.03, 3.47], [-15.18, 3.82], [-15.53, 3.97], [-15.75, 4.5]]]]}, "2018-06-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-14.53, 3.53], [-14.18, 3.68], [-14.03, 4.03], [-13.5, 4.25], [-12.97, 4.03], [-12.75, 3.5], [-12.85, 3.25], [-12.75, 3.0], [-12.97, 2.47], [-13.32, 2.32], [-13.47, 1.97], [-14.0, 1.75], [-14.53, 1.97], [-14.75, 2.5], [-14.65, 2.75], [-14.75, 3.0], [-14.53, 3.53]]]]}, "2018-06-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-13.5, 3.75], [-12.97, 3.53], [-12.75, 3.0], [-12.97, 2.47], [-13.5, 2.25], [-14.03, 2.47], [-14.25, 3.0], [-14.03, 3.53], [-13.5, 3.75]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 1.6044441270270227}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 0.9866520425986567}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [27.445884289959736, 27.414624158908453, 27.40211485709574, 27.55459652589991, 27.408623447353875, 27.29152965941472, 27.36327635820021, 27.207834329355194]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [27.445884289959736, 27.414624158908453, 27.716752931813858, 27.84029737921759, 27.784627574045885, 27.429033740728073, 27.447247103679388, 27.207834329355194]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [0.8302356322052447, 0.8069734598967102, 0.9389725751508511, 1.09611324978553, 0.9772154859278537, 0.7768896094975405, 0.8209099825017034, 0.6889839109826426]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [0.8302356322052447, 0.8069734598967102, 1.1956114459554783, 1.6044441270270227, 1.305674378322351, 0.867299500051331, 0.8942810543407518, 0.6889839109826426]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4588177524542714, 1.4406815240394568, 1.7826595826237195, 2.081720904449179, 1.8542301587560663, 1.4899054972486414, 1.5930177209986853, 1.3634203352937821]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.4588177524542714, 1.4406815240394568, 2.2463944631147985, 2.9159613750048985, 2.6179439618867892, 1.7442204564884782, 1.7838109456924742, 1.3634203352937821]}}