{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:56:45.339181", "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-Aug-20_to_2025-Aug-25_299.5_-3.0"}, "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": 2025080002192}, "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 20 2025"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 25 2025"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 6}, "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": 55511.169543510376}, "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"]}, "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": -3.0}, "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": 299.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "299.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 297.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 300.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -5.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -2.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2025-08-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-61.53, -2.97], [-61.0, -2.75], [-60.47, -2.97], [-60.25, -3.5], [-60.35, -3.75], [-60.25, -4.0], [-60.47, -4.53], [-61.0, -4.75], [-61.53, -4.53], [-61.75, -4.0], [-61.65, -3.75], [-61.75, -3.5], [-61.53, -2.97]]]]}, "2025-08-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-61.53, -2.97], [-61.18, -2.82], [-61.03, -2.47], [-60.5, -2.25], [-59.97, -2.47], [-59.75, -3.0], [-59.97, -3.53], [-60.32, -3.68], [-60.35, -3.75], [-60.25, -4.0], [-60.47, -4.53], [-61.0, -4.75], [-61.53, -4.53], [-61.75, -4.0], [-61.65, -3.75], [-61.75, -3.5], [-61.53, -2.97]]]]}, "2025-08-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-62.53, -4.47], [-62.18, -4.32], [-62.04, -4.0], [-62.25, -3.5], [-62.15, -3.25], [-62.25, -3.0], [-62.03, -2.47], [-61.68, -2.32], [-61.53, -1.97], [-61.0, -1.75], [-60.75, -1.85], [-60.5, -1.75], [-60.25, -1.85], [-60.0, -1.75], [-59.47, -1.97], [-59.25, -2.5], [-59.35, -2.75], [-59.25, -3.0], [-59.46, -3.5], [-59.25, -4.0], [-59.35, -4.25], [-59.25, -4.5], [-59.47, -5.03], [-60.0, -5.25], [-60.25, -5.15], [-60.5, -5.25], [-60.75, -5.15], [-60.82, -5.18], [-60.97, -5.53], [-61.32, -5.68], [-61.47, -6.03], [-62.0, -6.25], [-62.53, -6.03], [-62.75, -5.5], [-62.65, -5.25], [-62.75, -5.0], [-62.53, -4.47]]]]}, "2025-08-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-62.53, -4.47], [-62.18, -4.32], [-62.04, -4.0], [-62.25, -3.5], [-62.15, -3.25], [-62.25, -3.0], [-62.03, -2.47], [-61.68, -2.32], [-61.53, -1.97], [-61.0, -1.75], [-60.75, -1.85], [-60.5, -1.75], [-60.25, -1.85], [-60.0, -1.75], [-59.47, -1.97], [-59.25, -2.5], [-59.35, -2.75], [-59.25, -3.0], [-59.46, -3.5], [-59.25, -4.0], [-59.35, -4.25], [-59.25, -4.5], [-59.47, -5.03], [-60.0, -5.25], [-60.25, -5.15], [-60.5, -5.25], [-60.75, -5.15], [-60.82, -5.18], [-60.97, -5.53], [-61.32, -5.68], [-61.47, -6.03], [-62.0, -6.25], [-62.53, -6.03], [-62.75, -5.5], [-62.65, -5.25], [-62.75, -5.0], [-62.53, -4.47]]]]}, "2025-08-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-62.53, 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{"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.8590218034423913}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [29.1723241170248, 29.051901329888267, 28.99330913402423, 28.948176744249167, 28.96679063019934, 29.52591985066732]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [29.402996317545615, 29.506030019124353, 30.32270456949874, 30.02643737792971, 30.36027297973635, 29.52591985066732]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.0087200069251594, 1.6696624598972487, 1.9113691180599959, 1.8416995924496449, 1.848439901713593, 1.6877257929832012]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [2.012164522703756, 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