{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:13:14.517265", "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": "2021-Aug-26_to_2021-Aug-29_30.5_-16.5"}, "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": 2021080002960}, "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 26 2021"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 29 2021"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 4}, "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": 68216.0855659234}, "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", "Zimbabwe"]}, "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": []}, "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": -16.5}, "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": 30.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "30.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 30.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 33.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -17.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -15.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[32.75, -15.35], [33.0, -15.25], [33.25, -15.35], [33.5, -15.25], [34.03, -15.47], [34.25, -16.0], [34.15, -16.25], [34.25, -16.5], [34.15, -16.75], [34.25, -17.0], [34.03, -17.53], [33.68, -17.68], [33.53, -18.03], [33.0, -18.25], [32.75, -18.15], [32.5, -18.25], [31.97, -18.03], [31.82, -17.68], [31.47, -17.53], [31.32, -17.18], [31.25, -17.15], [31.0, -17.25], [30.75, -17.15], [30.5, -17.25], [29.97, -17.03], [29.75, -16.5], [29.85, -16.25], [29.75, -16.0], [29.97, -15.47], [30.5, -15.25], [30.75, -15.35], [30.87, -15.3], [30.88, -15.3], [30.75, -15.0], [30.97, -14.47], [31.5, -14.25], [31.75, -14.35], [32.0, -14.25], [32.53, -14.47], [32.75, -15.0], [32.65, -15.25], [32.68, -15.32], [32.75, -15.35]]]]}}, "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": {"2021-08-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[30.47, -15.47], [31.0, -15.25], [31.25, -15.35], [31.32, -15.32], [31.47, -14.97], [32.0, -14.75], [32.53, -14.97], [32.68, -15.32], [32.75, -15.35], [33.0, -15.25], [33.25, -15.35], [33.5, -15.25], [34.03, -15.47], [34.25, -16.0], [34.15, -16.25], [34.25, -16.5], [34.15, -16.75], [34.25, -17.0], [34.03, -17.53], [33.68, -17.68], [33.53, -18.03], [33.0, -18.25], [32.75, -18.15], [32.5, -18.25], [31.97, -18.03], [31.82, -17.68], [31.47, -17.53], [31.32, -17.18], [31.25, -17.15], [31.0, -17.25], [30.75, -17.15], [30.5, -17.25], [29.97, -17.03], [29.75, -16.5], [29.97, -15.97], [30.32, -15.82], [30.47, -15.47]]]]}, "2021-08-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[29.75, -16.0], [29.97, -15.47], [30.5, -15.25], [30.75, -15.35], [30.88, -15.3], [30.75, -15.0], [30.97, -14.47], [31.5, -14.25], [31.75, -14.35], [32.0, -14.25], [32.53, -14.47], [32.75, -15.0], [32.65, -15.25], [32.68, -15.32], [32.75, -15.35], [33.0, -15.25], [33.25, -15.35], [33.5, -15.25], [34.03, -15.47], [34.25, -16.0], [34.15, -16.25], [34.25, -16.5], [34.15, -16.75], [34.25, -17.0], [34.03, -17.53], [33.68, -17.68], [33.53, -18.03], [33.0, -18.25], [32.75, -18.15], [32.5, -18.25], [31.97, -18.03], [31.82, -17.68], [31.47, -17.53], [31.32, -17.18], [31.25, -17.15], [31.0, -17.25], [30.75, -17.15], [30.5, -17.25], [29.97, -17.03], [29.75, -16.5], [29.85, -16.25], [29.75, -16.0]]]]}, "2021-08-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[29.75, -16.0], [29.97, -15.47], [30.5, -15.25], [30.75, -15.35], [30.88, -15.3], [30.75, -15.0], [30.97, -14.47], [31.5, -14.25], [31.75, -14.35], [32.0, -14.25], [32.53, -14.47], [32.75, -15.0], [32.65, -15.25], [32.68, -15.32], [32.75, -15.35], [33.0, -15.25], [33.25, -15.35], [33.5, -15.25], [34.03, -15.47], [34.25, -16.0], [34.15, -16.25], [34.25, -16.5], [34.15, -16.75], [34.25, -17.0], [34.03, -17.53], [33.68, -17.68], [33.53, -18.03], [33.0, -18.25], [32.75, -18.15], [32.5, -18.25], [31.97, -18.03], [31.82, -17.68], [31.47, -17.53], [31.32, -17.18], [31.25, -17.15], [31.0, -17.25], [30.75, -17.15], [30.5, -17.25], [29.97, -17.03], [29.75, -16.5], [29.85, -16.25], [29.75, -16.0]]]]}, "2021-08-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[29.75, -16.0], [29.97, -15.47], [30.5, -15.25], [30.75, -15.35], [30.88, -15.3], [30.75, -15.0], [30.97, -14.47], [31.5, -14.25], [31.75, -14.35], [32.0, -14.25], [32.53, -14.47], [32.75, -15.0], [32.53, -15.53], [32.0, -15.75], [31.75, -15.65], [31.63, -15.7], [31.75, -16.0], [31.65, -16.25], [31.75, -16.5], [31.53, -17.03], [31.0, -17.25], [30.75, -17.15], [30.5, -17.25], [29.97, -17.03], [29.75, -16.5], [29.85, -16.25], [29.75, -16.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 4.530297421392959}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 3.3053043663446093}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [25.803974959215566, 25.641023119807187, 26.183103735673228, 25.262242867721]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [28.04078385297487, 28.083424175020866, 28.583267950149036, 27.90342281553967]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [3.224466822219796, 3.1422351140752274, 3.6192569620415638, 2.996376696954959]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [3.674066195660828, 3.4584308673788087, 4.530297421392959, 3.5013432059618026]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.53023114620721, 1.5752996470540344, 1.8360601495129711, 1.6012569451056506]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.7009070164376123, 1.7692515226248957, 2.082270023455682, 1.9146331648274462]}}