{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:48:59.785033", "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": "2011-Nov-19_to_2011-Nov-24_0.0_12.5"}, "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": 2011110002343}, "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 19 2011"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "November 24 2011"}, "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": 54361.2530781885}, "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": ["Benin", "Burkina Faso"]}, "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": 12.5}, "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": 0.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "0.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": -1.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 2.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 10.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 13.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2011-11-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-0.15, 12.75], [-0.25, 13.0], [-0.03, 13.53], [0.5, 13.75], [1.03, 13.53], [1.18, 13.18], [1.53, 13.03], [1.68, 12.68], [2.03, 12.53], [2.18, 12.18], [2.53, 12.03], [2.68, 11.68], [3.03, 11.53], [3.25, 11.0], [3.03, 10.47], [2.5, 10.25], [1.97, 10.47], [1.82, 10.82], [1.75, 10.85], [1.68, 10.82], [1.53, 10.47], [1.0, 10.25], [0.47, 10.47], [0.25, 11.0], [0.35, 11.25], [0.32, 11.32], [-0.03, 11.47], [-0.25, 12.0], [-0.15, 12.25], [-0.25, 12.5], [-0.15, 12.75]]]]}, "2011-11-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-0.65, 13.25], [-0.75, 13.5], [-0.53, 14.03], [0.0, 14.25], [0.53, 14.03], [0.68, 13.68], [1.03, 13.53], [1.18, 13.18], [1.53, 13.03], [1.68, 12.68], [2.03, 12.53], [2.18, 12.18], [2.53, 12.03], [2.68, 11.68], [3.03, 11.53], [3.25, 11.0], [3.03, 10.47], [2.5, 10.25], [1.97, 10.47], [1.82, 10.82], [1.75, 10.85], [1.68, 10.82], [1.53, 10.47], [1.0, 10.25], [0.47, 10.47], [0.32, 10.82], [-0.03, 10.97], [-0.25, 11.5], [-0.15, 11.75], [-0.18, 11.82], [-0.53, 11.97], [-0.75, 12.5], [-0.65, 12.75], [-0.75, 13.0], [-0.65, 13.25]]]]}, "2011-11-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-1.75, 13.5], [-1.53, 14.03], [-1.0, 14.25], [-0.75, 14.15], [-0.5, 14.25], [-0.25, 14.15], [0.0, 14.25], [0.53, 14.03], [0.68, 13.68], [1.03, 13.53], [1.18, 13.18], [1.53, 13.03], [1.68, 12.68], [2.03, 12.53], [2.18, 12.18], [2.53, 12.03], [2.68, 11.68], [3.03, 11.53], [3.25, 11.0], [3.03, 10.47], [2.5, 10.25], [1.97, 10.47], [1.82, 10.82], [1.75, 10.85], [1.68, 10.82], [1.53, 10.47], [1.0, 10.25], [0.47, 10.47], [0.32, 10.82], [-0.03, 10.97], [-0.25, 11.5], [-0.15, 11.75], [-0.18, 11.82], [-0.53, 11.97], [-0.68, 12.32], [-1.03, 12.47], [-1.18, 12.82], [-1.53, 12.97], [-1.75, 13.5]]]]}, "2011-11-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-1.75, 13.5], [-1.53, 14.03], [-1.0, 14.25], [-0.75, 14.15], [-0.5, 14.25], [-0.25, 14.15], [0.0, 14.25], [0.53, 14.03], [0.68, 13.68], [1.03, 13.53], [1.25, 13.0], [1.15, 12.75], [1.18, 12.68], [1.53, 12.53], [1.68, 12.18], [2.03, 12.03], [2.25, 11.5], [2.03, 10.97], [1.68, 10.82], [1.53, 10.47], [1.0, 10.25], [0.47, 10.47], [0.32, 10.82], [-0.03, 10.97], [-0.25, 11.5], [-0.15, 11.75], [-0.18, 11.82], [-0.53, 11.97], [-0.68, 12.32], [-1.03, 12.47], [-1.18, 12.82], [-1.53, 12.97], [-1.75, 13.5]]]]}, "2011-11-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-1.75, 13.5], [-1.53, 14.03], [-1.0, 14.25], [-0.75, 14.15], [-0.5, 14.25], [0.03, 14.03], [0.18, 13.68], [0.53, 13.53], [0.75, 13.0], [0.65, 12.75], [0.75, 12.5], [0.53, 11.97], [0.0, 11.75], [-0.53, 11.97], [-0.68, 12.32], [-1.03, 12.47], [-1.18, 12.82], [-1.53, 12.97], [-1.75, 13.5]]]]}, "2011-11-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-1.0, 14.25], [-0.47, 14.03], [-0.25, 13.5], [-0.47, 12.97], [-1.0, 12.75], [-1.53, 12.97], [-1.75, 13.5], [-1.53, 14.03], [-1.0, 14.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 3.269680791868609}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 2.2170994479790123}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [30.624171476267122, 30.762131187477564, 30.557333330828783, 30.221931481498586, 29.173946759808985, 28.722813491895465]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [31.420490552114018, 31.84865098203045, 31.515644712977235, 31.30695812085304, 29.39328742172887, 28.722813491895465]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.8604595744625696, 2.294851450804026, 2.3730645739987293, 2.2259139951317235, 2.1633811694013163, 2.311673478680291]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [2.2662703306966705, 3.065918194033202, 3.269680791868609, 3.057877283006519, 2.812820145697117, 2.311673478680291]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.5348256096092265, 1.822869202257211, 1.8023987113122126, 1.6732698020158252, 1.5220805424825212, 1.5567350384772722]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.8466128254483725, 2.2434547577014463, 2.4534209676493264, 2.3113275025727584, 1.840711237663728, 1.5567350384772722]}}