{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:20:32.826006", "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": "2020-Jun-22_to_2020-Jun-29_342.0_12.0"}, "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": 2020060002599}, "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": "June 22 2020"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 29 2020"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 8}, "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": 84758.15108026302}, "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-Bissau"]}, "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": ["North Atlantic Ocean"]}, "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": 12.0}, "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": 342.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "342.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 339.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 345.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 10.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 13.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2020-06-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-17.5, 13.25], [-17.25, 13.15], [-17.0, 13.25], [-16.47, 13.03], [-16.25, 12.5], [-16.47, 11.97], [-16.82, 11.82], [-16.97, 11.47], [-17.5, 11.25], [-17.75, 11.35], [-18.0, 11.25], [-18.53, 11.47], [-18.75, 12.0], [-18.53, 12.53], [-18.18, 12.68], [-18.03, 13.03], [-17.5, 13.25]]]]}, "2020-06-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-17.68, 13.18], [-17.53, 13.53], [-17.0, 13.75], [-16.47, 13.53], [-16.25, 13.0], [-16.35, 12.75], [-16.25, 12.5], [-16.47, 11.97], [-16.82, 11.82], [-16.97, 11.47], [-17.5, 11.25], [-17.75, 11.35], [-18.0, 11.25], [-18.53, 11.47], [-18.75, 12.0], [-18.53, 12.53], [-18.18, 12.68], [-18.03, 13.03], [-17.68, 13.18]]]]}, "2020-06-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-19.18, 12.68], [-19.03, 13.03], [-18.5, 13.25], [-18.25, 13.15], [-18.18, 13.18], [-18.03, 13.53], [-17.5, 13.75], [-17.25, 13.65], [-17.0, 13.75], [-16.47, 13.53], [-16.25, 13.0], [-16.35, 12.75], [-16.25, 12.5], [-16.47, 11.97], [-16.82, 11.82], [-16.97, 11.47], [-17.5, 11.25], [-17.75, 11.35], [-18.0, 11.25], [-18.25, 11.35], [-18.32, 11.32], [-18.47, 10.97], [-19.0, 10.75], [-19.25, 10.85], [-19.5, 10.75], [-20.03, 10.97], [-20.25, 11.5], [-20.03, 12.03], [-19.68, 12.18], [-19.53, 12.53], [-19.18, 12.68]]]]}, "2020-06-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-19.68, 12.18], [-19.53, 12.53], [-19.18, 12.68], [-19.03, 13.03], [-18.5, 13.25], [-18.25, 13.15], [-18.18, 13.18], [-18.03, 13.53], [-17.5, 13.75], [-17.25, 13.65], [-17.0, 13.75], [-16.47, 13.53], [-16.25, 13.0], [-16.35, 12.75], [-16.32, 12.68], [-15.97, 12.53], [-15.75, 12.0], [-15.97, 11.47], [-16.5, 11.25], [-16.75, 11.35], [-17.0, 11.25], [-17.25, 11.35], [-17.5, 11.25], [-17.75, 11.35], [-17.82, 11.32], [-17.85, 11.25], [-17.75, 11.0], [-17.97, 10.47], [-18.5, 10.25], [-18.75, 10.35], [-19.0, 10.25], [-19.25, 10.35], [-19.5, 10.25], [-19.75, 10.35], [-20.0, 10.25], [-20.53, 10.47], [-20.75, 11.0], [-20.53, 11.53], [-20.18, 11.68], [-20.03, 12.03], [-19.68, 12.18]]]]}, 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recorded over entire duration", "value": 1.6610037822562163}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.0085876898977337}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [27.436925448003137, 27.418963097687083, 27.366410477317288, 27.452718357435003, 27.438195040321602, 27.423612702495575, 27.73898833750144, 27.778851184136442]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [27.52177344067792, 27.56325916551475, 27.65761094048429, 27.832593530846964, 27.792318478913955, 27.71669177818984, 28.331310055686004, 28.11928087446711]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.011291683676049, 0.9965820275389887, 1.0655442842689478, 1.071844758194037, 0.9541881721283425, 0.91440802145674, 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2.5989022564839344]}}