{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:10:35.470689", "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-Mar-30_to_2018-Apr-02_50.5_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": 2018030002876}, "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 30 2018"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "April 02 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": 75994.72444996248}, "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": ["Somalia"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.Eastern-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 Aden"]}, "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": 50.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "50.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 47.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 51.25}, "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": 11.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2018-03-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[47.97, 10.47], [47.75, 11.0], [47.97, 11.53], [48.5, 11.75], 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[50.65, 8.75], [50.75, 8.5], [50.53, 7.97], [50.0, 7.75], [49.47, 7.97], [49.32, 8.32], [48.97, 8.47], [48.75, 9.0], [48.93, 9.43], [48.5, 9.25], [48.25, 9.35], [48.0, 9.25], [47.47, 9.47], [47.25, 10.0], [47.47, 10.53], [47.82, 10.68], [47.85, 10.75], [47.75, 11.0]], [[49.32, 9.82], [49.25, 9.85], [49.18, 9.82], [49.07, 9.57], [49.32, 9.68], [49.35, 9.75], [49.32, 9.82]]]]}, "2018-04-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[47.75, 11.0], [47.97, 11.53], [48.5, 11.75], [48.75, 11.65], [48.82, 11.68], [48.97, 12.03], [49.5, 12.25], [49.75, 12.15], [50.0, 12.25], [50.25, 12.15], [50.5, 12.25], [50.75, 12.15], [51.0, 12.25], [51.53, 12.03], [51.75, 11.5], [51.65, 11.25], [51.75, 11.0], [51.65, 10.75], [51.75, 10.5], [51.53, 9.97], [51.18, 9.82], [51.15, 9.75], [51.25, 9.5], [51.03, 8.97], [50.68, 8.82], [50.65, 8.75], [50.75, 8.5], [50.53, 7.97], [50.0, 7.75], [49.47, 7.97], [49.32, 8.32], [48.97, 8.47], [48.75, 9.0], [48.93, 9.43], [48.5, 9.25], [48.25, 9.35], [48.0, 9.25], [47.47, 9.47], [47.25, 10.0], [47.47, 10.53], [47.82, 10.68], [47.85, 10.75], [47.75, 11.0]], [[49.32, 9.82], [49.25, 9.85], [49.18, 9.82], [49.07, 9.57], [49.32, 9.68], [49.35, 9.75], [49.32, 9.82]]]]}, "2018-04-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[48.5, 11.25], [48.75, 11.15], [48.88, 11.2], [48.75, 11.5], [48.97, 12.03], [49.5, 12.25], [49.75, 12.15], [50.0, 12.25], [50.25, 12.15], [50.5, 12.25], [50.75, 12.15], [51.0, 12.25], [51.53, 12.03], [51.75, 11.5], [51.65, 11.25], [51.75, 11.0], [51.65, 10.75], [51.75, 10.5], [51.53, 9.97], [51.18, 9.82], [51.15, 9.75], [51.25, 9.5], [51.03, 8.97], [50.68, 8.82], [50.65, 8.75], [50.75, 8.5], [50.53, 7.97], [50.0, 7.75], [49.47, 7.97], [49.32, 8.32], [48.97, 8.47], [48.75, 9.0], [48.93, 9.43], [48.5, 9.25], [48.25, 9.35], [48.0, 9.25], [47.47, 9.47], [47.25, 10.0], [47.47, 10.53], [47.82, 10.68], [47.97, 11.03], [48.5, 11.25]], [[49.25, 9.85], [49.18, 9.82], [49.07, 9.57], [49.32, 9.68], [49.38, 9.8], [49.25, 9.85]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 2.1261320834375965}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.4448405672148497}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [27.01230538537976, 26.883728259750455, 26.990857291089014, 26.733015782900054]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [28.30123662416912, 28.461797896957535, 28.37903628006228, 28.134367945688552]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.4494199917165134, 1.5153536200757072, 1.5493450862074543, 1.2332152975071586]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.8329405153328935, 2.1261320834375965, 2.056682281997439, 1.6276804417473159]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.6767859085569954, 1.7527731125071824, 1.780151860007921, 1.4467323471330373]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.004932391568481, 2.439896030530652, 2.2532559390925497, 2.042045200340893]}}