{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:15:52.527151", "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": "2021-Nov-22_to_2021-Nov-24_18.0_-3.0"}, "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": 2021110002330}, "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 22 2021"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "November 24 2021"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 3}, "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": 86383.34343884166}, "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": ["Congo", "Congo, The Democratic Republic of the"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Africa", "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": -3.0}, "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": 18.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "18.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 16.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 19.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -5.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -2.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[15.82, -2.82], [15.85, -2.75], [15.75, -2.5], [15.97, -1.97], [16.5, -1.75], [16.75, -1.85], [17.0, -1.75], [17.25, -1.85], [17.5, -1.75], [17.75, -1.85], [18.0, -1.75], [18.53, -1.97], [18.68, -2.32], [18.75, -2.35], [19.0, -2.25], [19.53, -2.47], [19.68, -2.82], [20.03, -2.97], [20.25, -3.5], [20.15, -3.75], [20.25, -4.0], [20.03, -4.53], [19.68, -4.68], [19.53, -5.03], [19.0, -5.25], [18.7, -5.12], [18.53, -5.53], [18.0, -5.75], [17.47, -5.53], [17.25, -5.0], [17.35, -4.75], [17.32, -4.68], [17.25, -4.65], [17.0, -4.75], [16.5, -4.54], [16.0, -4.75], [15.47, -4.53], [15.25, -4.0], [15.35, -3.75], [15.25, -3.5], [15.47, -2.97], [15.82, -2.82]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Central-Africa"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2021-11-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[15.25, -3.5], [15.47, -2.97], [15.82, -2.82], [15.85, -2.75], [15.75, -2.5], [15.97, -1.97], [16.5, -1.75], [16.75, -1.85], [17.0, -1.75], [17.25, -1.85], [17.5, -1.75], [17.75, -1.85], [18.0, -1.75], [18.53, -1.97], [18.68, -2.32], [18.75, -2.35], [19.0, -2.25], [19.53, -2.47], [19.68, -2.82], [20.03, -2.97], [20.25, -3.5], [20.15, -3.75], [20.25, -4.0], [20.03, -4.53], [19.68, -4.68], [19.53, -5.03], [19.0, -5.25], [18.7, -5.12], [18.53, -5.53], [18.0, -5.75], [17.47, -5.53], [17.25, -5.0], [17.35, -4.75], [17.32, -4.68], [17.25, -4.65], [17.0, -4.75], [16.5, -4.54], [16.0, -4.75], [15.47, -4.53], [15.25, -4.0], [15.35, -3.75], [15.25, -3.5]]]]}, "2021-11-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[15.25, -3.5], [15.47, -2.97], [15.82, -2.82], [15.85, -2.75], [15.75, -2.5], [15.97, -1.97], [16.5, -1.75], [16.75, -1.85], [17.0, -1.75], [17.25, -1.85], [17.5, -1.75], [17.75, -1.85], [18.0, -1.75], [18.53, -1.97], [18.68, -2.32], [18.75, -2.35], [19.0, -2.25], [19.53, -2.47], [19.68, -2.82], [20.03, -2.97], [20.25, -3.5], [20.15, -3.75], [20.25, -4.0], [20.03, -4.53], [19.68, -4.68], [19.53, -5.03], [19.0, -5.25], [18.7, -5.12], [18.53, -5.53], [18.0, -5.75], [17.47, -5.53], [17.25, -5.0], [17.35, -4.75], [17.32, -4.68], [17.25, -4.65], [17.0, -4.75], [16.5, -4.54], [16.0, -4.75], [15.47, -4.53], [15.25, -4.0], [15.35, -3.75], [15.25, -3.5]]]]}, "2021-11-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[15.25, -3.5], [15.47, -2.97], [15.82, -2.82], [15.85, -2.75], [15.75, -2.5], [15.97, -1.97], [16.5, -1.75], [16.75, -1.85], [17.0, -1.75], [17.25, -1.85], [17.5, -1.75], [17.75, -1.85], [18.0, -1.75], [18.53, -1.97], [18.68, -2.32], [18.75, -2.35], [19.0, -2.25], [19.53, -2.47], [19.68, -2.82], [20.03, -2.97], [20.25, -3.5], [20.15, -3.75], [20.25, -4.0], [20.03, -4.53], [19.68, -4.68], [19.53, -5.03], [19.0, -5.25], [18.7, -5.12], [18.53, -5.53], [18.0, -5.75], [17.47, -5.53], [17.25, -5.0], [17.35, -4.75], [17.32, -4.68], [17.25, -4.65], [17.0, -4.75], [16.5, -4.54], [16.0, -4.75], [15.47, -4.53], [15.25, -4.0], [15.35, -3.75], [15.25, -3.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 2.5408991080876717}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.6390757402214764}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [26.616454358789383, 26.76903869465741, 26.772066959100528]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [27.57557800746855, 27.624797121698293, 27.94261936522662]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.5298797732202343, 1.6650736422343044, 1.7222738052098907]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.9907245894769403, 2.22334462353507, 2.5408991080876717]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.6361224889115529, 1.810781540355927, 1.8311851885488328]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.134918796981272, 2.2746169090044708, 2.8642383685344557]}}