{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-08-27 23:16:37.691905", "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": "2026-Aug-12_to_2026-Aug-14_34.5_-26.5"}, "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": 2026080000370}, "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 12 2026"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 14 2026"}, "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": "Cold spell"}, "area": {"name": "Area", "description": "The area (in square meters) encompassing all grid points under the influence of an event during its lifetime.", "value": 61126.917493471476}, "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"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["E.Southern-Africa", "S.Indian-Ocean"]}, "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": ["Indian Ocean", "Mozambique Channel"]}, "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": -26.5}, "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": 34.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "34.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 33.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 36.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -27.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -24.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2026-08-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[33.35, -25.25], [33.25, -25.0], [33.47, -24.47], [34.0, -24.25], [34.25, -24.35], [34.5, -24.25], [34.75, -24.35], [34.82, -24.32], [34.97, -23.97], [35.5, -23.75], [36.03, -23.97], [36.25, -24.5], [36.15, -24.75], [36.25, -25.0], [36.15, -25.25], [36.18, -25.32], [36.53, -25.47], [36.75, -26.0], [36.65, -26.25], [36.68, -26.32], [37.03, -26.47], [37.25, -27.0], [37.15, -27.25], [37.25, -27.5], [37.03, -28.03], [36.5, -28.25], [35.97, -28.03], [35.75, -27.5], [35.85, -27.25], [35.82, -27.18], [35.75, -27.15], [35.5, -27.25], [35.25, -27.15], [35.18, -27.18], [35.15, -27.25], [35.25, -27.5], [35.03, -28.03], [34.5, -28.25], [33.97, -28.03], [33.75, -27.5], [33.85, -27.25], [33.75, -27.0], [33.85, -26.75], [33.82, -26.68], [33.47, -26.53], [33.25, -26.0], [33.35, -25.75], [33.25, -25.5], [33.35, -25.25]]]]}, "2026-08-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[33.35, -25.25], [33.25, -25.0], [33.47, -24.47], [34.0, -24.25], [34.25, -24.35], [34.5, -24.25], [34.75, -24.35], [34.82, -24.32], [34.97, -23.97], [35.5, -23.75], [36.03, -23.97], [36.25, -24.5], [36.15, -24.75], [36.25, -25.0], [36.15, -25.25], [36.18, -25.32], [36.53, -25.47], [36.75, -26.0], [36.65, -26.25], [36.68, -26.32], [37.03, -26.47], [37.25, -27.0], [37.15, -27.25], [37.25, -27.5], [37.03, -28.03], [36.5, -28.25], [35.97, -28.03], [35.75, -27.5], [35.85, -27.25], [35.82, -27.18], [35.75, -27.15], [35.5, -27.25], [35.25, -27.15], [35.18, -27.18], [35.15, -27.25], [35.25, -27.5], [35.03, -28.03], [34.5, -28.25], [33.97, -28.03], [33.75, -27.5], [33.85, -27.25], [33.75, -27.0], [33.85, -26.75], [33.82, -26.68], [33.47, -26.53], [33.25, -26.0], [33.35, -25.75], [33.25, -25.5], [33.35, -25.25]]]]}, "2026-08-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[33.35, -25.25], [33.25, -25.0], [33.47, -24.47], [34.0, -24.25], [34.25, -24.35], [34.5, -24.25], [34.75, -24.35], [34.82, -24.32], [34.97, -23.97], [35.5, -23.75], [36.03, -23.97], [36.25, -24.5], [36.15, -24.75], [36.25, -25.0], [36.15, -25.25], [36.18, -25.32], [36.53, -25.47], [36.75, -26.0], [36.65, -26.25], [36.68, -26.32], [37.03, -26.47], [37.25, -27.0], [37.15, -27.25], [37.25, -27.5], [37.03, -28.03], [36.5, -28.25], [35.97, -28.03], [35.75, -27.5], [35.85, -27.25], [35.82, -27.18], [35.75, -27.15], [35.5, -27.25], [35.25, -27.15], [35.18, -27.18], [35.15, -27.25], [35.25, -27.5], [35.03, -28.03], [34.5, -28.25], [33.97, -28.03], [33.75, -27.5], [33.85, -27.25], [33.75, -27.0], [33.85, -26.75], [33.82, -26.68], [33.47, -26.53], [33.25, -26.0], [33.35, -25.75], [33.25, -25.5], [33.35, -25.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -2.4974294284871235}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -1.746507803672056}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [19.298903632886493, 19.681985358035945, 19.75845628218218]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [18.55944976806643, 19.023005421956384, 18.96394500732424]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-2.0109354037354077, -1.6407950968022467, -1.5877929104785138]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-2.4974294284871235, -1.891109093445607, -1.978060379976455]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.849766309564663, -1.4876697457018588, -1.4336541074365634]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.2358711593530876, -1.762706637819348, -1.5764071559050954]}}