{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:19:38.326749", "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": "2019-Apr-26_to_2019-Apr-30_345.5_14.5"}, "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": 2019040002672}, "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": "April 26 2019"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "April 30 2019"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 5}, "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": 80610.75510737918}, "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": ["Mali", "Mauritania", "Senegal"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Sahara", "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": 14.5}, "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": 345.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "345.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 344.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 348.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 13.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 16.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2019-04-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-16.25, 14.5], [-16.03, 15.03], [-15.5, 15.25], [-15.25, 15.15], [-15.0, 15.25], [-14.75, 15.15], [-14.5, 15.25], [-13.97, 15.03], [-13.75, 14.5], [-13.85, 14.25], [-13.75, 14.0], [-13.97, 13.47], [-14.5, 13.25], [-14.75, 13.35], [-15.0, 13.25], [-15.53, 13.47], [-15.68, 13.82], [-16.03, 13.97], [-16.25, 14.5]]]]}, "2019-04-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-16.15, 14.75], [-16.25, 15.0], [-16.03, 15.53], [-15.68, 15.68], [-15.53, 16.03], [-15.18, 16.18], [-15.03, 16.53], [-14.5, 16.75], [-14.25, 16.65], [-14.0, 16.75], [-13.47, 16.53], [-13.25, 16.0], [-13.35, 15.75], [-13.25, 15.5], [-13.35, 15.25], [-13.25, 15.0], [-13.47, 14.47], [-13.82, 14.32], [-13.85, 14.25], [-13.75, 14.0], [-13.97, 13.47], [-14.5, 13.25], [-14.75, 13.35], [-15.0, 13.25], [-15.25, 13.35], [-15.5, 13.25], [-16.03, 13.47], [-16.25, 14.0], [-16.15, 14.25], [-16.25, 14.5], [-16.15, 14.75]]]]}, "2019-04-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-16.15, 14.75], [-16.25, 15.0], [-16.03, 15.53], [-15.68, 15.68], [-15.53, 16.03], [-15.18, 16.18], [-15.03, 16.53], [-14.5, 16.75], [-14.25, 16.65], [-14.0, 16.75], [-13.5, 16.54], [-13.0, 16.75], [-12.75, 16.65], [-12.5, 16.75], [-11.97, 16.53], [-11.75, 16.0], [-11.87, 15.7], [-11.47, 15.53], [-11.32, 15.18], [-10.97, 15.03], [-10.75, 14.5], [-10.97, 13.97], [-11.5, 13.75], [-11.75, 13.85], [-12.0, 13.75], [-12.25, 13.85], [-12.5, 13.75], [-12.75, 13.85], [-13.0, 13.75], [-13.53, 13.97], [-13.68, 14.32], [-13.75, 14.35], [-13.82, 14.32], [-13.85, 14.25], [-13.75, 14.0], [-13.97, 13.47], [-14.5, 13.25], [-14.75, 13.35], [-15.0, 13.25], [-15.25, 13.35], [-15.5, 13.25], [-16.03, 13.47], [-16.25, 14.0], [-16.15, 14.25], [-16.25, 14.5], [-16.15, 14.75]]]]}, "2019-04-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-16.15, 14.75], [-16.25, 15.0], [-16.03, 15.53], [-15.68, 15.68], [-15.53, 16.03], [-15.18, 16.18], [-15.03, 16.53], [-14.5, 16.75], [-14.25, 16.65], [-14.0, 16.75], [-13.5, 16.54], [-13.0, 16.75], [-12.75, 16.65], [-12.5, 16.75], [-11.97, 16.53], [-11.75, 16.0], [-11.87, 15.7], [-11.47, 15.53], [-11.32, 15.18], [-10.97, 15.03], [-10.75, 14.5], [-10.97, 13.97], [-11.5, 13.75], [-11.75, 13.85], [-12.0, 13.75], [-12.25, 13.85], [-12.5, 13.75], [-12.75, 13.85], [-13.0, 13.75], [-13.53, 13.97], [-13.68, 14.32], [-13.75, 14.35], [-13.82, 14.32], [-13.85, 14.25], [-13.75, 14.0], [-13.97, 13.47], [-14.5, 13.25], [-14.75, 13.35], [-15.0, 13.25], [-15.25, 13.35], [-15.5, 13.25], [-16.03, 13.47], [-16.25, 14.0], [-16.15, 14.25], [-16.25, 14.5], [-16.15, 14.75]]]]}, "2019-04-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-14.03, 16.03], [-13.68, 16.18], [-13.53, 16.53], [-13.0, 16.75], [-12.75, 16.65], [-12.5, 16.75], [-11.97, 16.53], [-11.75, 16.0], [-11.87, 15.7], [-11.47, 15.53], [-11.32, 15.18], [-10.97, 15.03], [-10.75, 14.5], [-10.97, 13.97], [-11.5, 13.75], [-11.75, 13.85], [-12.0, 13.75], [-12.25, 13.85], [-12.5, 13.75], [-12.75, 13.85], [-13.0, 13.75], [-13.53, 13.97], [-13.68, 14.32], [-14.03, 14.47], [-14.25, 15.0], [-14.15, 15.25], [-14.25, 15.5], [-14.03, 16.03]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 5.079792646359124}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 3.267045409250573}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [34.55080195775679, 35.41473770421925, 36.65216103356835, 37.113064031373995, 37.92306884630892]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [35.83917833274239, 36.58401566005415, 38.113126032120306, 38.86072003094267, 38.80252363238634]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.694449927228402, 3.25128380474603, 3.199659471402396, 3.6908030565762147, 2.723492519399528]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [3.01469326034578, 4.012643337958764, 4.620576790097061, 5.079792646359124, 3.2259118524094106]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4181088227402416, 1.606535835215065, 1.7790131615627158, 2.06161564359993, 1.7818541921621713]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.5665636387663533, 1.9206637312079482, 2.1449637292145236, 2.6233717826768377, 2.238967897383994]}}