{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:55:32.403539", "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": "2025-May-04_to_2025-May-09_357.0_8.0"}, "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": 2025050001110}, "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 04 2025"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "May 09 2025"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 6}, "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": 52035.7619704789}, "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", "Ghana"]}, "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": 8.0}, "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": 357.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "357.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 353.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 357.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 7.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 8.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2025-05-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-3.53, 8.53], [-3.0, 8.75], [-2.47, 8.53], [-2.32, 8.18], [-1.97, 8.03], [-1.75, 7.5], [-1.97, 6.97], [-2.5, 6.75], [-2.75, 6.85], [-3.0, 6.75], [-3.53, 6.97], [-3.75, 7.5], [-3.65, 7.75], [-3.75, 8.0], [-3.53, 8.53]]]]}, "2025-05-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-6.53, 8.53], [-6.0, 8.75], [-5.5, 8.54], [-5.18, 8.68], [-5.03, 9.03], [-4.5, 9.25], [-3.97, 9.03], [-3.82, 8.68], [-3.75, 8.65], [-3.5, 8.75], [-3.25, 8.65], [-3.0, 8.75], [-2.47, 8.53], [-2.32, 8.18], [-1.97, 8.03], [-1.75, 7.5], [-1.97, 6.97], [-2.5, 6.75], [-2.75, 6.85], [-3.0, 6.75], [-3.53, 6.97], [-3.68, 7.32], [-3.75, 7.35], [-4.0, 7.25], [-4.25, 7.35], [-4.5, 7.25], [-4.75, 7.35], [-4.82, 7.32], [-4.97, 6.97], [-5.5, 6.75], [-5.75, 6.85], [-6.0, 6.75], [-6.53, 6.97], [-6.75, 7.5], [-6.65, 7.75], [-6.75, 8.0], [-6.53, 8.53]]]]}, "2025-05-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-6.53, 8.53], [-6.0, 8.75], [-5.5, 8.54], [-5.18, 8.68], [-5.03, 9.03], [-4.5, 9.25], [-4.0, 9.04], [-3.5, 9.25], [-3.25, 9.15], [-3.0, 9.25], [-2.75, 9.15], [-2.5, 9.25], [-1.97, 9.03], [-1.75, 8.5], [-1.85, 8.25], [-1.75, 8.0], [-1.85, 7.75], [-1.75, 7.5], [-1.97, 6.97], [-2.5, 6.75], [-2.75, 6.85], [-3.0, 6.75], [-3.25, 6.85], [-3.5, 6.75], [-4.03, 6.97], [-4.18, 7.32], [-4.25, 7.35], [-4.5, 7.25], [-4.75, 7.35], [-4.82, 7.32], [-4.97, 6.97], [-5.5, 6.75], [-5.75, 6.85], [-6.0, 6.75], [-6.53, 6.97], [-6.75, 7.5], [-6.65, 7.75], [-6.75, 8.0], [-6.53, 8.53]]]]}, "2025-05-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-6.53, 8.53], [-6.0, 8.75], [-5.5, 8.54], [-5.18, 8.68], [-5.03, 9.03], [-4.5, 9.25], [-4.25, 9.15], [-4.0, 9.25], [-3.75, 9.15], [-3.5, 9.25], [-3.25, 9.15], [-3.0, 9.25], [-2.75, 9.15], [-2.5, 9.25], [-1.97, 9.03], [-1.75, 8.5], [-1.85, 8.25], [-1.75, 8.0], [-1.85, 7.75], [-1.75, 7.5], [-1.97, 6.97], [-2.5, 6.75], [-2.75, 6.85], [-3.0, 6.75], [-3.25, 6.85], [-3.5, 6.75], [-4.03, 6.97], [-4.18, 7.32], [-4.25, 7.35], [-4.5, 7.25], [-4.75, 7.35], [-4.82, 7.32], [-4.97, 6.97], [-5.5, 6.75], [-5.75, 6.85], [-6.0, 6.75], [-6.53, 6.97], [-6.75, 7.5], [-6.65, 7.75], [-6.75, 8.0], [-6.53, 8.53]]]]}, "2025-05-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-4.0, 9.25], [-3.75, 9.15], [-3.5, 9.25], [-3.25, 9.15], [-3.0, 9.25], [-2.75, 9.15], [-2.5, 9.25], [-1.97, 9.03], [-1.75, 8.5], [-1.85, 8.25], [-1.75, 8.0], [-1.97, 7.47], [-2.32, 7.32], [-2.47, 6.97], [-3.0, 6.75], [-3.25, 6.85], [-3.5, 6.75], [-4.03, 6.97], [-4.18, 7.32], [-4.25, 7.35], [-4.5, 7.25], [-5.03, 7.47], [-5.25, 8.0], [-5.03, 8.53], [-4.68, 8.68], [-4.53, 9.03], [-4.0, 9.25]]]]}, "2025-05-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-4.0, 9.25], [-3.75, 9.15], [-3.5, 9.25], [-3.25, 9.15], [-3.0, 9.25], [-2.75, 9.15], [-2.5, 9.25], [-1.97, 9.03], [-1.75, 8.5], [-1.97, 7.97], [-2.32, 7.82], [-2.47, 7.47], [-2.82, 7.32], [-2.97, 6.97], [-3.5, 6.75], [-4.03, 6.97], [-4.18, 7.32], [-4.25, 7.35], [-4.5, 7.25], [-5.03, 7.47], [-5.25, 8.0], [-5.03, 8.53], [-4.68, 8.68], [-4.53, 9.03], [-4.0, 9.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 2.583169230450096}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.6782432887461163}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [28.939189317491298, 29.16687707612016, 29.51584396362307, 29.80938349705127, 29.261528847434363, 29.44870331375688]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [29.091505940755212, 29.528338368733728, 29.931050872802757, 30.560072835286462, 29.79438425699874, 29.942075347900413]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.3681518009328215, 1.389565782245618, 1.7394310446683434, 2.030271418234279, 1.4533645212481732, 1.6355667533425984]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.456473987978086, 1.4976485603662582, 2.3222956610183587, 2.583169230450096, 1.6226979585358663, 1.9247932694956944]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.3365891033979844, 1.3852276637766119, 1.7565424794226783, 2.048902915343963, 1.4413757466675188, 1.6107510351174292]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.4402060605067795, 1.5715641067289947, 2.36856465695937, 2.6636804366287827, 1.603018841848688, 1.9928111034184994]}}