{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:18:32.798253", "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-Nov-02_to_2018-Nov-05_349.0_9.5"}, "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": 2018110001308}, "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": "November 02 2018"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "November 05 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": 51735.99447158295}, "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": ["Guinea", "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": 9.5}, "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": 349.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "349.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 346.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 350.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 8.75}, "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": {"2018-11-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-13.75, 11.5], [-13.53, 12.03], [-13.0, 12.25], [-12.75, 12.15], [-12.5, 12.25], [-11.97, 12.03], [-11.75, 11.5], [-11.85, 11.25], [-11.82, 11.18], [-11.75, 11.15], [-11.5, 11.25], [-11.25, 11.15], [-11.0, 11.25], [-10.47, 11.03], [-10.32, 10.68], [-10.25, 10.65], [-10.0, 10.75], [-9.47, 10.53], [-9.25, 10.0], [-9.47, 9.47], [-9.82, 9.32], [-9.85, 9.25], [-9.75, 9.0], [-9.97, 8.47], [-10.5, 8.25], [-10.75, 8.35], [-11.0, 8.25], [-11.25, 8.35], [-11.5, 8.25], [-12.03, 8.47], [-12.25, 9.0], [-12.15, 9.25], [-12.25, 9.5], [-12.15, 9.75], [-12.18, 9.82], [-12.53, 9.97], [-12.68, 10.32], [-13.03, 10.47], [-13.18, 10.82], [-13.53, 10.97], [-13.75, 11.5]]]]}, "2018-11-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-13.75, 11.5], [-13.53, 12.03], [-13.0, 12.25], [-12.75, 12.15], [-12.5, 12.25], [-11.97, 12.03], [-11.75, 11.5], [-11.85, 11.25], [-11.82, 11.18], [-11.75, 11.15], [-11.5, 11.25], [-11.25, 11.15], [-11.0, 11.25], [-10.47, 11.03], [-10.32, 10.68], [-10.25, 10.65], [-10.0, 10.75], [-9.47, 10.53], [-9.25, 10.0], [-9.47, 9.47], [-9.82, 9.32], [-9.85, 9.25], [-9.75, 9.0], [-9.97, 8.47], [-10.5, 8.25], [-10.75, 8.35], [-11.0, 8.25], [-11.25, 8.35], [-11.5, 8.25], [-12.03, 8.47], [-12.25, 9.0], [-12.15, 9.25], [-12.2, 9.38], [-12.5, 9.25], [-13.03, 9.47], [-13.25, 10.0], [-13.04, 10.5], [-13.18, 10.82], [-13.53, 10.97], [-13.75, 11.5]]]]}, "2018-11-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-13.75, 11.5], [-13.53, 12.03], [-13.0, 12.25], [-12.75, 12.15], [-12.5, 12.25], [-11.97, 12.03], [-11.75, 11.5], [-11.85, 11.25], [-11.82, 11.18], [-11.75, 11.15], [-11.5, 11.25], [-11.25, 11.15], [-11.0, 11.25], [-10.47, 11.03], [-10.32, 10.68], [-10.25, 10.65], [-10.0, 10.75], [-9.47, 10.53], [-9.25, 10.0], [-9.47, 9.47], [-9.82, 9.32], [-9.85, 9.25], [-9.75, 9.0], [-9.97, 8.47], [-10.5, 8.25], [-10.75, 8.35], [-11.0, 8.25], [-11.25, 8.35], [-11.5, 8.25], [-12.03, 8.47], [-12.25, 9.0], [-12.15, 9.25], [-12.2, 9.38], [-12.5, 9.25], [-13.03, 9.47], [-13.25, 10.0], [-13.04, 10.5], [-13.18, 10.82], [-13.53, 10.97], [-13.75, 11.5]]]]}, "2018-11-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-12.5, 10.75], [-11.97, 10.53], [-11.75, 10.0], [-11.97, 9.47], [-12.5, 9.25], [-13.03, 9.47], [-13.25, 10.0], [-13.03, 10.53], [-12.5, 10.75]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 1.6822839425761345}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.2224368033899853}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [25.677553663759113, 25.892577551211957, 25.65297650238506, 27.078262781155217]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [26.73143652934965, 27.133739317480888, 27.22119644533558, 27.078262781155217]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.249398573873556, 1.3509300800288415, 1.083525608164634, 0.9681530916232646]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.5882632598960527, 1.6822839425761345, 1.3836791456802189, 0.9681530916232646]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.7778266378148815, 1.9715759952021155, 1.5909584259477356, 1.5233612199591071]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.1871136753185048, 2.388930719807961, 2.0076456614700207, 1.5233612199591071]}}