{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:22:33.586708", "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": "2022-Aug-14_to_2022-Aug-16_43.0_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": 2022080002249}, "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 14 2022"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 16 2022"}, "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": 70953.15068828223}, "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": ["Ethiopia", "Somalia"]}, "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": 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": 43.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "43.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 43.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 44.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 1.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 5.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[42.25, 2.0], [42.35, 2.25], [42.25, 2.5], [42.35, 2.75], [42.25, 3.0], [42.35, 3.25], [42.25, 3.5], [42.35, 3.75], [42.25, 4.0], [42.35, 4.25], [42.25, 4.5], [42.47, 5.03], [42.82, 5.18], [42.97, 5.53], [43.32, 5.68], [43.47, 6.03], [44.0, 6.25], [44.25, 6.15], [44.5, 6.25], [45.03, 6.03], [45.25, 5.5], [45.03, 4.97], [44.68, 4.82], [44.65, 4.75], [44.75, 4.5], [44.65, 4.25], [44.75, 4.0], [44.65, 3.75], [44.75, 3.5], [44.53, 2.97], [44.18, 2.82], [44.15, 2.75], [44.25, 2.5], [44.15, 2.25], [44.25, 2.0], [44.15, 1.75], [44.25, 1.5], [44.15, 1.25], [44.25, 1.0], [44.03, 0.47], [43.5, 0.25], [43.25, 0.35], [43.0, 0.25], [42.47, 0.47], [42.25, 1.0], [42.35, 1.25], [42.25, 1.5], [42.35, 1.75], [42.25, 2.0]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.Eastern-Africa", "S.Eastern-Africa"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2022-08-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[42.25, 1.5], [42.35, 1.75], [42.25, 2.0], [42.35, 2.25], [42.25, 2.5], [42.35, 2.75], [42.25, 3.0], [42.35, 3.25], [42.25, 3.5], [42.35, 3.75], [42.25, 4.0], [42.35, 4.25], [42.25, 4.5], [42.47, 5.03], [42.82, 5.18], [42.97, 5.53], [43.32, 5.68], [43.47, 6.03], [44.0, 6.25], [44.25, 6.15], [44.5, 6.25], [45.03, 6.03], [45.25, 5.5], [45.03, 4.97], [44.68, 4.82], [44.65, 4.75], [44.75, 4.5], [44.65, 4.25], [44.75, 4.0], [44.65, 3.75], [44.75, 3.5], [44.53, 2.97], [44.18, 2.82], [44.15, 2.75], [44.25, 2.5], [44.15, 2.25], [44.25, 2.0], [44.15, 1.75], [44.25, 1.5], [44.15, 1.25], [44.25, 1.0], [44.03, 0.47], [43.5, 0.25], [43.25, 0.35], [43.0, 0.25], [42.47, 0.47], [42.25, 1.0], [42.35, 1.25], [42.25, 1.5]]]]}, "2022-08-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[42.25, 1.5], [42.35, 1.75], [42.25, 2.0], [42.35, 2.25], [42.25, 2.5], [42.35, 2.75], [42.25, 3.0], [42.35, 3.25], [42.25, 3.5], [42.35, 3.75], [42.25, 4.0], [42.35, 4.25], [42.25, 4.5], [42.47, 5.03], [42.82, 5.18], [42.97, 5.53], [43.32, 5.68], [43.47, 6.03], [44.0, 6.25], [44.25, 6.15], [44.5, 6.25], [45.03, 6.03], [45.25, 5.5], [45.03, 4.97], [44.68, 4.82], [44.65, 4.75], [44.75, 4.5], [44.65, 4.25], [44.75, 4.0], [44.65, 3.75], [44.75, 3.5], [44.53, 2.97], [44.18, 2.82], [44.15, 2.75], [44.25, 2.5], [44.15, 2.25], [44.25, 2.0], [44.15, 1.75], [44.25, 1.5], [44.15, 1.25], [44.25, 1.0], [44.03, 0.47], [43.5, 0.25], [43.25, 0.35], [43.0, 0.25], [42.47, 0.47], [42.25, 1.0], [42.35, 1.25], [42.25, 1.5]]]]}, "2022-08-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[42.25, 1.5], [42.35, 1.75], [42.25, 2.0], [42.35, 2.25], [42.25, 2.5], [42.35, 2.75], [42.25, 3.0], [42.35, 3.25], [42.25, 3.5], [42.35, 3.75], [42.25, 4.0], [42.35, 4.25], [42.25, 4.5], [42.47, 5.03], [42.82, 5.18], [42.97, 5.53], [43.32, 5.68], [43.47, 6.03], [44.0, 6.25], [44.25, 6.15], [44.5, 6.25], [45.03, 6.03], [45.25, 5.5], [45.03, 4.97], [44.68, 4.82], [44.65, 4.75], [44.75, 4.5], [44.65, 4.25], [44.75, 4.0], [44.65, 3.75], [44.75, 3.5], [44.53, 2.97], [44.18, 2.82], [44.15, 2.75], [44.25, 2.5], [44.15, 2.25], [44.25, 2.0], [44.15, 1.75], [44.25, 1.5], [44.15, 1.25], [44.25, 1.0], [44.03, 0.47], [43.5, 0.25], [43.25, 0.35], [43.0, 0.25], [42.47, 0.47], [42.25, 1.0], [42.35, 1.25], [42.25, 1.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 1.60073842972605}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.0669859366910275}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [27.175960486291956, 27.320131921243046, 27.34776045433256]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [29.839380838858972, 29.650881070405205, 29.798141296956317]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [0.9917735268018152, 1.1086565485766087, 1.1005277346946587]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.1632189678821874, 1.60073842972605, 1.3990950350305411]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.3725655867849935, 1.5438198816165585, 1.5232857017670178]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.5710274738066665, 2.0961741599454045, 1.829741056958595]}}