{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:13:02.083727", "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-12_to_2021-Aug-16_37.5_-6.5"}, "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": 2021080002200}, "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 12 2021"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 16 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": 73843.65986407231}, "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": ["Kenya", "Tanzania, United Republic of"]}, "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": ["Indian 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": -6.5}, "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": 37.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "37.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 35.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 39.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -7.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -3.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[35.97, -4.47], [36.32, -4.32], [36.47, -3.97], [36.82, -3.82], [36.97, -3.47], [37.5, -3.25], [38.03, -3.47], [38.25, -4.0], [38.47, -3.47], [38.82, -3.32], [38.97, -2.97], [39.5, -2.75], [40.03, -2.97], [40.25, -3.5], [40.15, -3.75], [40.25, -4.0], [40.03, -4.53], [39.68, -4.68], [39.65, -4.75], [39.75, -5.0], [39.53, -5.53], [39.18, -5.68], [39.04, -6.0], [39.25, -6.5], [39.03, -7.03], [38.68, -7.18], [38.53, -7.53], [38.0, -7.75], [37.75, -7.65], [37.5, -7.75], [36.97, -7.53], [36.82, -7.18], [36.47, -7.03], [36.32, -6.68], [36.0, -6.54], [35.5, -6.75], [34.97, -6.53], [34.75, -6.0], [34.97, -5.47], [35.32, -5.32], [35.47, -4.97], [35.82, -4.82], [35.97, -4.47]], [[38.13, -4.3], [38.25, -4.35], [38.32, -4.32], [38.35, -4.25], [38.25, -4.0], [38.13, -4.3]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["S.Eastern-Africa"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2021-08-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[36.5, -4.25], [37.03, -4.47], [37.25, -5.0], [37.03, -5.53], [36.68, -5.68], [36.53, -6.03], [36.0, -6.25], [35.47, -6.03], [35.25, -5.5], [35.47, -4.97], [35.82, -4.82], [35.97, -4.47], [36.5, -4.25]]], [[[38.5, -5.75], [37.97, -5.53], [37.75, -5.0], [37.97, -4.47], [38.5, -4.25], [39.03, -4.47], [39.25, -5.0], [39.03, -5.53], [38.5, -5.75]]]]}, "2021-08-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[35.47, -4.97], [35.82, -4.82], [35.97, -4.47], [36.32, -4.32], [36.47, -3.97], [36.82, -3.82], [36.97, -3.47], [37.5, -3.25], [38.03, -3.47], [38.25, -4.0], [38.47, -3.47], [38.82, -3.32], [38.97, -2.97], [39.5, -2.75], [40.03, -2.97], [40.25, -3.5], [40.15, -3.75], [40.25, -4.0], [40.03, -4.53], [39.68, -4.68], [39.65, -4.75], [39.75, -5.0], [39.53, -5.53], [39.18, -5.68], [39.04, -6.0], [39.25, -6.5], [39.03, -7.03], [38.68, -7.18], [38.53, -7.53], [38.0, -7.75], [37.75, -7.65], [37.5, -7.75], [36.97, -7.53], [36.82, -7.18], [36.47, -7.03], [36.32, -6.68], [36.0, -6.54], [35.5, -6.75], [34.97, -6.53], [34.75, -6.0], [34.97, -5.47], [35.32, -5.32], [35.47, -4.97]], [[38.13, -4.3], [38.25, -4.35], [38.32, -4.32], [38.35, -4.25], [38.25, -4.0], [38.13, -4.3]]]]}, "2021-08-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[35.47, -4.97], [35.82, -4.82], [35.97, -4.47], [36.32, -4.32], [36.47, -3.97], [36.82, -3.82], [36.97, -3.47], [37.5, -3.25], [38.03, -3.47], [38.25, -4.0], [38.47, -3.47], [38.82, -3.32], [38.97, -2.97], [39.5, -2.75], [40.03, -2.97], [40.25, -3.5], [40.15, -3.75], [40.25, -4.0], [40.03, -4.53], [39.68, -4.68], [39.65, -4.75], [39.75, -5.0], [39.53, -5.53], [39.18, -5.68], [39.04, -6.0], [39.25, -6.5], [39.03, -7.03], [38.68, -7.18], [38.53, -7.53], [38.0, -7.75], [37.75, -7.65], [37.5, -7.75], [36.97, -7.53], [36.82, -7.18], [36.47, -7.03], [36.32, -6.68], [36.0, -6.54], [35.5, -6.75], [34.97, -6.53], [34.75, -6.0], [34.97, -5.47], [35.32, -5.32], [35.47, -4.97]], [[38.13, -4.3], [38.25, -4.35], [38.32, -4.32], [38.35, -4.25], [38.25, -4.0], [38.13, -4.3]]]]}, "2021-08-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[35.5, -6.75], [34.97, -6.53], [34.75, -6.0], [34.97, -5.47], [35.5, -5.25], [36.0, -5.46], [36.5, -5.25], [36.93, -5.43], [36.82, -5.18], [36.47, -5.03], [36.25, -4.5], [36.47, -3.97], [36.82, -3.82], [36.97, -3.47], [37.5, -3.25], [38.03, -3.47], [38.25, -4.0], [38.47, -3.47], [38.82, -3.32], [38.97, -2.97], [39.5, -2.75], [40.03, -2.97], [40.25, -3.5], [40.15, -3.75], [40.25, -4.0], [40.03, -4.53], [39.68, -4.68], [39.65, -4.75], [39.75, -5.0], [39.53, -5.53], [39.18, -5.68], [39.04, -6.0], [39.25, -6.5], [39.03, -7.03], [38.68, -7.18], [38.53, -7.53], [38.0, -7.75], [37.75, -7.65], [37.5, -7.75], [36.97, -7.53], [36.82, -7.18], [36.47, -7.03], [36.32, -6.68], [36.0, -6.54], [35.5, -6.75]], [[38.13, -4.3], [38.25, -4.35], [38.32, -4.32], [38.35, -4.25], [38.25, -4.0], [38.13, -4.3]]]]}, "2021-08-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[36.97, -5.97], [37.5, -5.75], [38.03, -5.97], [38.25, -6.5], [38.03, -7.03], [37.5, -7.25], [36.97, -7.03], [36.75, -6.5], [36.97, -5.97]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 2.2612215199981733}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.2549049710630813}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [20.355312474225286, 22.435681519787693, 22.986445679498104, 23.082120947551232, 23.788591737799322]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [20.54296722484287, 24.80715943065036, 25.922447853995834, 25.527084867970927, 23.788591737799322]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [0.8042114700488318, 0.962413350848126, 1.4919477107763701, 1.386738057423124, 1.0374307062248818]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [0.8697466991791885, 1.444085961411929, 2.142390349564778, 2.2612215199981733, 1.0374307062248818]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.1816702251732851, 1.4383881895936286, 2.2180064805772806, 2.0343375731780795, 1.3339457656969083]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.235593634044471, 1.914464147031302, 3.3372522957202553, 3.115172462183795, 1.3339457656969083]}}