{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:56:56.155178", "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-Sep-01_to_2025-Sep-03_302.0_3.5"}, "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": 2025090000846}, "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": "September 01 2025"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "September 03 2025"}, "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": 52494.663855476494}, "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": ["Brazil", "Guyana"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.South-America"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["South America"]}, "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": 3.5}, "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": 302.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "302.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 299.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 302.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 1.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 3.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2025-09-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-60.25, 3.0], [-60.03, 3.53], [-59.5, 3.75], [-59.25, 3.65], [-59.18, 3.68], [-59.03, 4.03], [-58.5, 4.25], [-58.25, 4.15], [-58.0, 4.25], [-57.47, 4.03], [-57.32, 3.68], [-56.97, 3.53], [-56.75, 3.0], [-56.85, 2.75], [-56.75, 2.5], [-56.97, 1.97], [-57.32, 1.82], [-57.47, 1.47], [-58.0, 1.25], [-58.25, 1.35], [-58.32, 1.32], [-58.47, 0.97], [-59.0, 0.75], [-59.53, 0.97], [-59.68, 1.32], [-59.75, 1.35], [-60.0, 1.25], [-60.53, 1.47], [-60.75, 2.0], [-60.53, 2.53], [-60.18, 2.68], [-60.15, 2.75], [-60.25, 3.0]]]]}, "2025-09-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-60.25, 3.0], [-60.03, 3.53], [-59.5, 3.75], [-59.25, 3.65], [-59.18, 3.68], [-59.03, 4.03], [-58.5, 4.25], [-58.25, 4.15], [-58.0, 4.25], [-57.47, 4.03], [-57.32, 3.68], [-56.97, 3.53], [-56.75, 3.0], [-56.85, 2.75], [-56.75, 2.5], [-56.97, 1.97], [-57.32, 1.82], [-57.47, 1.47], [-58.0, 1.25], [-58.25, 1.35], [-58.32, 1.32], [-58.47, 0.97], [-59.0, 0.75], [-59.53, 0.97], [-59.68, 1.32], [-59.75, 1.35], [-60.0, 1.25], [-60.53, 1.47], [-60.75, 2.0], [-60.53, 2.53], [-60.18, 2.68], [-60.15, 2.75], [-60.25, 3.0]]]]}, "2025-09-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-60.25, 3.0], [-60.03, 3.53], [-59.5, 3.75], [-59.25, 3.65], [-59.18, 3.68], [-59.03, 4.03], [-58.5, 4.25], [-58.25, 4.15], [-58.0, 4.25], [-57.47, 4.03], [-57.32, 3.68], [-56.97, 3.53], [-56.75, 3.0], [-56.85, 2.75], [-56.75, 2.5], [-56.97, 1.97], [-57.32, 1.82], [-57.47, 1.47], [-58.0, 1.25], [-58.25, 1.35], [-58.32, 1.32], [-58.47, 0.97], [-59.0, 0.75], [-59.53, 0.97], [-59.68, 1.32], [-59.75, 1.35], [-60.0, 1.25], [-60.53, 1.47], [-60.75, 2.0], [-60.53, 2.53], [-60.18, 2.68], [-60.15, 2.75], [-60.25, 3.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 2.0996537818181196}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.3800361120912903}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [27.145948926140306, 27.275830766266438, 27.37210026161347]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [27.82711563110354, 28.028535461425804, 28.309322611490927]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.2876460414078545, 1.3944036891078226, 1.4580586057581935]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.5770091590261472, 1.7442955308996488, 2.0996537818181196]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.422136916331796, 1.524431325263068, 1.575843860900766]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.7947696433589602, 1.9954948275689208, 2.152485010026852]}}