{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:55:45.907421", "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-Oct-18_to_2023-Oct-24_14.0_-13.0"}, "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": 2023100001653}, "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": "October 18 2023"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "October 24 2023"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 7}, "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": 60575.811952527394}, "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": ["Angola"]}, "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": -13.0}, "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": 14.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "14.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 14.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 16.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -13.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -9.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[14.0, -13.75], [13.47, -13.53], [13.25, -13.0], [13.46, -12.5], [13.25, -12.0], [13.47, -11.47], [13.82, -11.32], [13.85, -11.25], [13.75, -11.0], [13.85, -10.75], [13.75, -10.5], [13.97, -9.97], [14.32, -9.82], [14.47, -9.47], [15.0, -9.25], [15.25, -9.35], [15.32, -9.32], [15.47, -8.97], [16.0, -8.75], [16.53, -8.97], [16.75, -9.5], [16.53, -10.03], [16.18, -10.18], [16.15, -10.25], [16.25, -10.5], [16.15, -10.75], [16.25, -11.0], [16.04, -11.5], [16.18, -11.82], [16.53, -11.97], [16.75, -12.5], [16.53, -13.03], [16.0, -13.25], [15.75, -13.15], [15.5, -13.25], [15.25, -13.15], [15.18, -13.18], [15.03, -13.53], [14.5, -13.75], [14.25, -13.65], [14.0, -13.75]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Central-Africa", "W.Southern-Africa"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2023-10-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[13.25, -12.0], [13.47, -11.47], [13.82, -11.32], [13.85, -11.25], [13.75, -11.0], [13.85, -10.75], [13.75, -10.5], [13.97, -9.97], [14.32, -9.82], [14.47, -9.47], [15.0, -9.25], [15.25, -9.35], [15.5, -9.25], [16.03, -9.47], [16.25, -10.0], [16.15, -10.25], [16.25, -10.5], [16.15, -10.75], [16.25, -11.0], [16.03, -11.53], [15.63, -11.7], [15.75, -12.0], [15.65, -12.25], [15.75, -12.5], [15.53, -13.03], [15.18, -13.18], [15.03, -13.53], [14.5, -13.75], [14.25, -13.65], [14.0, -13.75], [13.47, -13.53], [13.25, -13.0], [13.46, -12.5], [13.25, -12.0]]]]}, "2023-10-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[13.25, -12.0], [13.47, -11.47], [13.82, -11.32], [13.85, -11.25], [13.75, -11.0], [13.85, -10.75], [13.75, -10.5], [13.97, -9.97], [14.32, -9.82], [14.47, -9.47], [15.0, -9.25], [15.25, -9.35], [15.32, -9.32], [15.47, -8.97], [16.0, -8.75], [16.53, -8.97], [16.75, -9.5], [16.53, -10.03], [16.18, -10.18], [16.15, -10.25], [16.25, -10.5], [16.15, -10.75], [16.25, -11.0], [16.04, -11.5], [16.18, -11.82], [16.53, -11.97], [16.75, -12.5], [16.53, -13.03], 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-12.5], [15.47, -11.97], [16.0, -11.75], [16.53, -11.97], [16.75, -12.5], [16.53, -13.03], [16.0, -13.25]]]]}, "2023-10-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[14.0, -13.75], [13.47, -13.53], [13.25, -13.0], [13.47, -12.47], [14.0, -12.25], [14.53, -12.47], [14.75, -13.0], [14.53, -13.53], [14.0, -13.75]]], [[[16.0, -13.25], [15.47, -13.03], [15.25, -12.5], [15.47, -11.97], [16.0, -11.75], [16.53, -11.97], [16.75, -12.5], [16.53, -13.03], [16.0, -13.25]]]]}, "2023-10-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[15.47, -11.97], [16.0, -11.75], [16.53, -11.97], [16.75, -12.5], [16.53, -13.03], [16.0, -13.25], [15.47, -13.03], [15.25, -12.5], [15.47, -11.97]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 2.778367503132017}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.6301096317568955}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [22.307485180169635, 22.30305424082343, 22.656854927699953, 22.286414985782358, 23.335170906007534, 24.486621150643828, 21.288182312554397]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [25.192390750120182, 24.928814526783015, 25.260143405377505, 25.340848774139943, 25.2041938144975, 26.59021080281599, 21.288182312554397]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.4482955992628241, 1.5197277471918569, 1.8938671581360864, 1.4050547460201415, 1.5325032291366085, 2.7195488153963936, 1.7385046107081052]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.8640545104110515, 2.496414463998292, 2.7438373475237086, 1.8613880231209805, 1.7669160160288016, 2.778367503132017, 1.7385046107081052]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.7676882271937884, 1.7355049795017208, 2.2928409396202665, 1.6277573971669934, 1.5994837135870235, 2.99409532176879, 1.6588414290413553]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.2321604685693557, 2.348663412405095, 3.1890156174219735, 1.8461639684448758, 1.6337982086905645, 3.401651158968294, 1.6588414290413553]}}