{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 17:00:42.404409", "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": "2024-Aug-16_to_2024-Aug-21_33.5_-30.0"}, "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": 2024080002048}, "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 16 2024"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 21 2024"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 6}, "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": 89029.54121682464}, "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": ["South 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": ["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": -30.0}, "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": 33.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "33.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 32.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 34.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -31.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -27.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[31.85, -28.75], [31.75, -28.5], [31.85, -28.25], [31.75, -28.0], [31.97, -27.47], [32.32, -27.32], [32.47, -26.97], [33.0, -26.75], [33.25, -26.85], [33.5, -26.75], [33.75, -26.85], [34.0, -26.75], [34.53, -26.97], [34.68, -27.32], [35.03, -27.47], [35.25, -28.0], [35.15, -28.25], [35.25, -28.5], [35.03, -29.03], [34.68, -29.18], [34.65, -29.25], [34.75, -29.5], [34.65, -29.75], [34.75, -30.0], [34.53, -30.53], [34.18, -30.68], [34.15, -30.75], [34.25, -31.0], [34.03, -31.53], [33.68, -31.68], [33.53, -32.03], [33.0, -32.25], [32.47, -32.03], [32.25, -31.5], [32.35, -31.25], [32.32, -31.18], [31.97, -31.03], [31.82, -30.68], [31.47, -30.53], [31.25, -30.0], [31.35, -29.75], [31.25, -29.5], [31.47, -28.97], [31.82, -28.82], [31.85, -28.75]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["E.Southern-Africa", "S.Indian-Ocean"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2024-08-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[31.25, -29.5], 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maximum t2m.", "value": [22.76356443904666, 23.457364271827657, 23.218782404341653, 22.5298419919892, 22.89249583589759, 23.30013850764334]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.9927069559116286, 2.5983623351652048, 2.19155033685683, 1.7605349956901417, 2.2571311177571802, 2.853257593489854]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [2.7351760735926973, 3.4868467938285335, 3.0443501411890566, 1.9582891681845922, 2.90760785575344, 3.136123501353552]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.5906360188338946, 1.9561724643984233, 1.6073679512221979, 1.2409694534947338, 1.5127845294352433, 1.9190672386840755]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.974144943356201, 2.3753384349408235, 2.190698493160058, 1.4129974586336418, 1.7995528081546468, 2.114250241878954]}}