{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:27:04.021275", "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-Aug-11_to_2021-Aug-15_44.0_-13.5"}, "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": 2021080001984}, "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": "August 11 2021"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 15 2021"}, "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": 59586.47525649639}, "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": ["Madagascar"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["E.Southern-Africa", "Madagascar"]}, "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": ["Mozambique Channel"]}, "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": -13.5}, "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": 44.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "44.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 43.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 45.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -17.25}, "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": {"2021-08-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[44.0, -12.75], [44.53, -12.97], [44.75, -13.5], [44.53, -14.03], [44.0, -14.25], [43.47, -14.03], [43.25, -13.5], [43.47, -12.97], [44.0, -12.75]]]]}, "2021-08-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[44.0, -12.75], [44.53, -12.97], [44.75, -13.5], [44.53, -14.03], [44.0, -14.25], [43.47, -14.03], [43.25, -13.5], [43.47, -12.97], [44.0, -12.75]]]]}, "2021-08-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[42.85, -15.75], [42.75, -15.5], [42.85, -15.25], [42.75, -15.0], [42.97, -14.47], [43.32, -14.32], [43.35, -14.25], [43.25, -14.0], [43.35, -13.75], [43.25, -13.5], [43.47, -12.97], [44.0, -12.75], [44.53, -12.97], [44.68, -13.32], [45.03, -13.47], [45.25, -14.0], [45.15, -14.25], [45.25, -14.5], [45.15, -14.75], [45.18, -14.82], [45.53, -14.97], [45.75, -15.5], [45.54, -16.0], [45.75, -16.5], [45.53, -17.03], [45.0, -17.25], [44.75, -17.15], [44.68, -17.18], [44.53, -17.53], [44.0, -17.75], [43.47, -17.53], [43.32, -17.18], [42.97, -17.03], [42.75, -16.5], [42.85, -16.25], [42.75, -16.0], [42.85, -15.75]]]]}, "2021-08-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[42.85, -15.75], [42.75, -15.5], [42.85, -15.25], [42.75, -15.0], [42.97, -14.47], [43.32, -14.32], [43.35, -14.25], [43.25, -14.0], [43.35, -13.75], [43.25, -13.5], [43.47, -12.97], [44.0, -12.75], [44.53, -12.97], [44.68, -13.32], [45.03, -13.47], [45.25, -14.0], [45.15, -14.25], [45.25, -14.5], [45.15, -14.75], [45.18, -14.82], [45.53, -14.97], [45.75, -15.5], [45.54, -16.0], [45.75, -16.5], [45.53, -17.03], [45.0, -17.25], [44.75, -17.15], [44.68, -17.18], [44.53, -17.53], [44.0, -17.75], [43.47, -17.53], [43.32, -17.18], [42.97, -17.03], [42.75, -16.5], [42.85, -16.25], [42.75, -16.0], [42.85, -15.75]]]]}, "2021-08-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[42.85, -15.75], [42.75, -15.5], [42.85, -15.25], [42.75, -15.0], [42.97, -14.47], [43.32, -14.32], [43.35, -14.25], [43.25, -14.0], [43.35, -13.75], [43.25, -13.5], [43.47, -12.97], [44.0, -12.75], [44.53, -12.97], [44.68, -13.32], [45.03, -13.47], [45.25, -14.0], [45.15, -14.25], [45.25, -14.5], [45.15, -14.75], [45.18, -14.82], [45.53, -14.97], [45.75, -15.5], [45.54, -16.0], [45.75, -16.5], [45.53, -17.03], [45.0, -17.25], [44.75, -17.15], [44.68, -17.18], [44.53, -17.53], [44.0, -17.75], [43.47, -17.53], [43.32, -17.18], [42.97, -17.03], [42.75, -16.5], [42.85, -16.25], [42.75, -16.0], [42.85, -15.75]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 2.2656422197548522}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 0.8584196231522307}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [25.072761436640405, 25.024281070486893, 25.163670123238887, 25.39197584754436, 25.021769051514525]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [25.072761436640405, 25.024281070486893, 25.951888076346563, 26.80421451364117, 25.752126567624543]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [0.6406559826806415, 0.5846547306576895, 0.8502573542608645, 1.0676978141063755, 0.6818801277377589]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [0.6406559826806415, 0.5846547306576895, 1.4455659809089525, 2.2656422197548522, 1.1715523302685824]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.5397723842397408, 1.4137288799337762, 1.7007469190511568, 2.1610170469819208, 1.3975719909570277]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.5397723842397408, 1.4137288799337762, 1.9599851110271058, 2.8757053055713975, 1.5871966643344098]}}