{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:21:46.958143", "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-Jul-07_to_2022-Jul-09_19.0_-26.0"}, "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": 2022070001859}, "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": "July 07 2022"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "July 09 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": 67354.32655212088}, "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": ["Namibia"]}, "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": -26.0}, "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": 19.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "19.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 17.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 19.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -26.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -23.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[16.47, -23.47], [16.82, -23.32], [16.97, -22.97], [17.5, -22.75], [18.0, -22.96], [18.5, -22.75], [19.03, -22.97], [19.18, -23.32], [19.53, -23.47], [19.68, -23.82], [20.03, -23.97], [20.25, -24.5], [20.15, -24.75], [20.25, -25.0], [20.03, -25.53], [19.68, -25.68], [19.65, -25.75], [19.75, -26.0], [19.53, -26.53], [19.0, -26.75], [18.75, -26.65], [18.5, -26.75], [18.0, -26.54], [17.5, -26.75], [16.97, -26.53], [16.75, -26.0], [16.85, -25.75], [16.75, -25.5], [16.85, -25.25], [16.75, -25.0], [16.85, -24.75], [16.82, -24.68], [16.47, -24.53], [16.25, -24.0], [16.47, -23.47]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["W.Southern-Africa"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2022-07-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[16.47, -24.53], [16.25, -24.0], [16.47, -23.47], [16.82, -23.32], [16.97, -22.97], [17.5, -22.75], [18.0, -22.96], [18.5, -22.75], [19.03, -22.97], [19.18, -23.32], [19.53, -23.47], [19.68, -23.82], [20.03, -23.97], [20.25, -24.5], [20.15, -24.75], [20.25, -25.0], [20.03, -25.53], [19.68, -25.68], [19.65, -25.75], [19.75, -26.0], [19.53, -26.53], [19.0, -26.75], [18.75, -26.65], [18.5, -26.75], [18.0, -26.54], [17.5, -26.75], [16.97, -26.53], [16.75, -26.0], [16.85, -25.75], [16.75, -25.5], [16.85, -25.25], [16.75, -25.0], [16.85, -24.75], [16.82, -24.68], [16.47, -24.53]]]]}, "2022-07-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[16.47, -24.53], [16.25, -24.0], [16.47, -23.47], [16.82, -23.32], [16.97, -22.97], [17.5, -22.75], [18.0, -22.96], [18.5, -22.75], [19.03, -22.97], [19.18, -23.32], [19.53, -23.47], [19.68, -23.82], [20.03, -23.97], [20.25, -24.5], [20.15, -24.75], [20.25, -25.0], [20.03, -25.53], [19.68, -25.68], [19.65, -25.75], [19.75, -26.0], [19.53, -26.53], [19.0, -26.75], [18.75, -26.65], [18.5, -26.75], [18.0, -26.54], [17.5, -26.75], [16.97, -26.53], [16.75, -26.0], [16.85, -25.75], [16.75, -25.5], [16.85, -25.25], [16.75, -25.0], [16.85, -24.75], [16.82, -24.68], [16.47, -24.53]]]]}, "2022-07-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[16.47, -24.53], [16.25, -24.0], [16.47, -23.47], [16.82, -23.32], [16.97, -22.97], [17.5, -22.75], [18.0, -22.96], [18.5, -22.75], [19.03, -22.97], [19.18, -23.32], [19.53, -23.47], [19.68, -23.82], [20.03, -23.97], [20.25, -24.5], [20.15, -24.75], [20.25, -25.0], [20.03, -25.53], [19.68, -25.68], [19.65, -25.75], [19.75, -26.0], [19.53, -26.53], [19.0, -26.75], [18.75, -26.65], [18.5, -26.75], [18.0, -26.54], [17.5, -26.75], [16.97, -26.53], [16.75, -26.0], [16.85, -25.75], [16.75, -25.5], [16.85, -25.25], [16.75, -25.0], [16.85, -24.75], [16.82, -24.68], [16.47, -24.53]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 5.94840484273044}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 4.236876389322543}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [17.12377804495958, 17.799197374148605, 18.099980126047342]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [17.818352399348214, 18.67027088157704, 19.301345569314435]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [3.715139449643722, 4.3751445599003205, 4.620345158423587]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [4.346352799734689, 5.384666098679077, 5.94840484273044]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.255052492079109, 1.455996198473368, 1.5397112240562694]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.4066872117443827, 1.6849340198956795, 1.8624849653530107]}}