{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:50:50.422693", "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": "2023-Jan-28_to_2023-Jan-30_33.5_-18.5"}, "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": 2023010002905}, "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": "January 28 2023"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "January 30 2023"}, "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": 58980.22074687602}, "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": ["Mozambique"]}, "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": []}, "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": -18.5}, "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": 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": 33.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 38.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -18.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -16.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[33.5, -17.25], [33.75, -17.35], [33.82, -17.32], [33.97, -16.97], [34.5, -16.75], [34.75, -16.85], [35.0, -16.75], [35.25, -16.85], [35.5, -16.75], [35.75, -16.85], [35.82, -16.82], [35.85, -16.75], [35.75, -16.5], [35.97, -15.97], [36.5, -15.75], [36.75, -15.85], [37.0, -15.75], [37.25, -15.85], [37.32, -15.82], [37.47, -15.47], [38.0, -15.25], [38.53, -15.47], [38.75, -16.0], [38.54, -16.5], [38.75, -17.0], [38.53, -17.53], [38.0, -17.75], [37.75, -17.65], [37.5, -17.75], [37.25, -17.65], [37.0, -17.75], [36.75, -17.65], [36.68, -17.68], [36.65, -17.75], [36.75, -18.0], [36.53, -18.53], [36.0, -18.75], [35.75, -18.65], [35.5, -18.75], [35.25, -18.65], [35.18, -18.68], [35.03, -19.03], [34.5, -19.25], [34.0, -19.04], [33.5, -19.25], [32.97, -19.03], [32.75, -18.5], [32.85, -18.25], [32.75, -18.0], [32.97, -17.47], [33.5, -17.25]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["E.Southern-Africa"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2023-01-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[32.75, -18.0], [32.97, -17.47], [33.5, -17.25], [33.75, -17.35], [33.82, -17.32], [33.97, -16.97], [34.5, -16.75], [34.75, -16.85], [35.0, -16.75], [35.25, -16.85], [35.5, -16.75], [35.75, -16.85], [35.82, -16.82], [35.85, -16.75], [35.75, -16.5], [35.97, -15.97], [36.5, -15.75], [36.75, -15.85], [37.0, -15.75], [37.25, -15.85], [37.32, -15.82], [37.47, -15.47], [38.0, -15.25], [38.53, -15.47], [38.75, -16.0], [38.54, -16.5], [38.75, -17.0], [38.53, -17.53], [38.0, -17.75], [37.75, -17.65], [37.5, -17.75], [37.25, -17.65], [37.0, -17.75], [36.75, -17.65], [36.68, -17.68], [36.65, -17.75], [36.75, -18.0], [36.53, -18.53], [36.0, -18.75], [35.75, -18.65], [35.5, -18.75], [35.25, -18.65], [35.18, -18.68], [35.03, -19.03], [34.5, -19.25], [34.0, -19.04], [33.5, -19.25], [32.97, -19.03], [32.75, -18.5], [32.85, -18.25], [32.75, -18.0]]]]}, "2023-01-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[32.75, -18.0], [32.97, -17.47], [33.5, -17.25], [33.75, -17.35], [33.82, -17.32], [33.97, -16.97], [34.5, -16.75], [34.75, -16.85], [35.0, -16.75], [35.25, -16.85], [35.5, -16.75], [35.75, -16.85], [35.82, -16.82], [35.85, -16.75], [35.75, -16.5], [35.97, -15.97], [36.5, -15.75], [36.75, -15.85], [37.0, -15.75], [37.25, -15.85], [37.32, -15.82], [37.47, -15.47], [38.0, -15.25], [38.53, -15.47], [38.75, -16.0], [38.54, -16.5], [38.75, -17.0], [38.53, -17.53], [38.0, -17.75], [37.75, -17.65], [37.5, -17.75], [37.25, -17.65], [37.0, -17.75], [36.75, -17.65], [36.68, -17.68], [36.65, -17.75], [36.75, -18.0], [36.53, -18.53], [36.0, -18.75], [35.75, -18.65], [35.5, -18.75], [35.25, -18.65], [35.18, -18.68], [35.03, -19.03], [34.5, -19.25], [34.0, -19.04], [33.5, -19.25], [32.97, -19.03], [32.75, -18.5], [32.85, -18.25], [32.75, -18.0]]]]}, "2023-01-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[32.75, -18.0], [32.97, -17.47], [33.5, -17.25], [33.75, -17.35], [33.82, 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anomaly over entire duration", "value": 2.6165948261358656}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [28.333004698210743, 29.63664731607946, 28.30640502576034]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [29.900280104268063, 31.48505151313924, 30.520508015102962]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.1512015189696143, 3.5063895825847196, 2.1921933768532624]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [3.2830111275058016, 4.962961432731788, 3.121036274383414]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.5239486098369568, 2.5689033916668382, 1.6340005484960411]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.236296431531817, 3.4719898533675693, 2.135816210133326]}}