{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 17:06:45.401938", "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": "2025-Jul-23_to_2025-Jul-27_40.5_-14.0"}, "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": 2025070002660}, "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 23 2025"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "July 27 2025"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 5}, "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": 51030.466180521704}, "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": -14.0}, "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": 40.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "40.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 38.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 40.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -15.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -13.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[38.75, -14.65], [38.5, -14.75], [38.25, -14.65], [38.0, -14.75], [37.47, -14.53], [37.25, -14.0], [37.47, -13.47], [37.82, -13.32], [37.97, -12.97], [38.5, -12.75], [38.75, -12.85], [38.82, -12.82], [38.97, -12.47], [39.5, -12.25], [39.75, -12.35], [40.0, -12.25], [40.25, -12.35], [40.5, -12.25], [41.03, -12.47], [41.25, -13.0], [41.15, -13.25], [41.25, -13.5], [41.15, -13.75], [41.25, -14.0], [41.15, -14.25], [41.25, -14.5], [41.15, -14.75], [41.25, -15.0], [41.03, -15.53], [40.5, -15.75], [39.97, -15.53], [39.82, -15.18], [39.47, -15.03], [39.32, -14.68], [39.25, -14.65], [39.0, -14.75], [38.75, -14.65]]]]}}, "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": {"2025-07-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[38.47, -13.47], [39.0, -13.25], [39.53, -13.47], [39.75, -14.0], [39.53, -14.53], [39.0, -14.75], [38.47, -14.53], [38.25, -14.0], [38.47, -13.47]]]]}, "2025-07-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[38.5, -14.75], [37.97, -14.53], [37.75, -14.0], [37.97, -13.47], [38.5, -13.25], [38.75, -13.35], [39.0, -13.25], [39.3, -13.37], [39.47, -12.97], [40.0, -12.75], [40.25, -12.85], [40.5, -12.75], [41.03, -12.97], [41.25, -13.5], [41.15, -13.75], [41.25, -14.0], [41.15, -14.25], [41.25, -14.5], [41.03, -15.03], [40.5, -15.25], [39.97, -15.03], [39.82, -14.68], [39.5, -14.54], [39.0, -14.75], [38.75, -14.65], [38.5, -14.75]]]]}, "2025-07-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[37.97, -12.97], [38.5, -12.75], [38.75, -12.85], [38.82, -12.82], [38.97, -12.47], [39.5, -12.25], [39.75, -12.35], [40.0, -12.25], [40.25, -12.35], [40.5, -12.25], [41.03, -12.47], [41.25, -13.0], [41.15, -13.25], [41.25, -13.5], [41.15, -13.75], [41.25, -14.0], [41.15, -14.25], [41.25, -14.5], [41.15, -14.75], [41.25, -15.0], [41.03, -15.53], [40.5, -15.75], [39.97, -15.53], [39.82, -15.18], [39.47, -15.03], [39.32, -14.68], [39.25, -14.65], [39.0, -14.75], [38.75, -14.65], [38.5, -14.75], [38.25, -14.65], [38.0, -14.75], [37.47, -14.53], [37.25, -14.0], [37.47, -13.47], [37.82, -13.32], [37.97, -12.97]]]]}, "2025-07-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[37.97, -12.97], [38.5, -12.75], [38.75, -12.85], [38.82, -12.82], [38.97, -12.47], [39.5, -12.25], [39.75, -12.35], [40.0, -12.25], [40.25, -12.35], [40.5, -12.25], [41.03, -12.47], [41.25, -13.0], [41.15, -13.25], [41.25, -13.5], [41.15, -13.75], [41.25, -14.0], [41.15, -14.25], [41.25, -14.5], [41.15, -14.75], [41.25, -15.0], [41.03, -15.53], [40.5, -15.75], [39.97, -15.53], [39.82, -15.18], [39.47, -15.03], [39.32, -14.68], [39.25, -14.65], [39.0, -14.75], [38.75, -14.65], [38.5, -14.75], [38.25, -14.65], [38.0, -14.75], [37.47, -14.53], [37.25, -14.0], [37.47, -13.47], [37.82, -13.32], [37.97, -12.97]]]]}, "2025-07-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[37.97, -12.97], [38.5, -12.75], [38.75, -12.85], [38.82, -12.82], [38.97, -12.47], [39.5, -12.25], [39.75, -12.35], [40.0, -12.25], [40.25, -12.35], [40.5, -12.25], [41.03, -12.47], [41.25, -13.0], [41.15, -13.25], [41.25, -13.5], [41.15, -13.75], [41.25, -14.0], [41.15, -14.25], [41.25, -14.5], [41.15, -14.75], [41.25, -15.0], [41.03, -15.53], [40.5, -15.75], [39.97, -15.53], [39.82, -15.18], [39.47, -15.03], [39.32, -14.68], [39.25, -14.65], [39.0, -14.75], [38.75, -14.65], [38.5, -14.75], [38.25, -14.65], [38.0, -14.75], [37.47, -14.53], [37.25, -14.0], [37.47, -13.47], [37.82, -13.32], [37.97, -12.97]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 2.427309185450895}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.5205685937622033}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [23.395135498046898, 23.51893840971445, 23.703660433900154, 23.73124600578757, 23.522510034897778]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [23.395135498046898, 24.18327992757162, 24.70215250651046, 24.73000615437826, 24.553219095865927]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.3398478508475478, 1.2297702102748158, 1.6389908215357891, 1.6432299013757956, 1.409856201158929]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.3398478508475478, 1.6553071183248562, 2.427309185450895, 2.067307725475814, 1.6953251439393853]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.336050640371434, 1.5821718568943075, 1.9824723262982769, 1.9742177106358232, 1.693274084875846]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.336050640371434, 1.966835656604737, 2.7660963282046107, 2.601811744889725, 2.197966855797116]}}