{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-08-31 16:20:39.942666", "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-20_to_2026-Aug-23_314.0_-13.0"}, "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": 2026080001763}, "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": true}, "start_date": {"name": "Start date", "description": "First date on which grid points are under the influence of an event", "value": "August 20 2026"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 23 2026"}, "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": 74941.2497730921}, "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.E.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": -13.0}, "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": 314.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "314.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 311.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 318.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -16.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -11.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2026-08-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-42.0, -12.25], [-41.47, -12.47], [-41.25, -13.0], [-41.47, -13.53], [-42.0, -13.75], [-42.53, -13.53], [-42.75, -13.0], [-42.53, -12.47], [-42.0, -12.25]]]]}, "2026-08-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-48.53, -16.03], [-48.75, -15.5], [-48.53, -14.97], [-48.0, -14.75], [-47.75, -14.85], [-47.5, -14.75], [-47.25, -14.85], [-47.0, -14.75], [-46.75, -14.85], [-46.68, -14.82], [-46.53, -14.47], [-46.18, -14.32], [-46.15, -14.25], [-46.25, -14.0], [-46.15, -13.75], [-46.18, -13.68], [-46.53, -13.53], [-46.75, -13.0], [-46.53, -12.47], [-46.0, -12.25], [-45.47, -12.47], [-45.32, -12.82], [-45.2, -12.88], [-45.03, -12.47], [-44.68, -12.32], [-44.53, -11.97], [-44.0, -11.75], [-43.7, -11.88], [-43.53, -11.47], [-43.18, -11.32], [-43.03, -10.97], [-42.5, -10.75], [-41.97, -10.97], [-41.75, -11.5], [-41.97, -12.03], [-42.32, -12.18], [-42.35, -12.25], [-42.32, -12.32], [-42.25, -12.35], [-42.0, -12.25], [-41.47, -12.47], [-41.25, -13.0], [-41.47, -13.53], [-41.82, -13.68], [-41.97, -14.03], [-42.5, -14.25], [-43.03, -14.03], [-43.2, -13.62], [-43.5, -13.75], [-43.8, -13.62], [-43.97, -14.03], [-44.32, -14.18], [-44.46, -14.5], [-44.25, -15.0], [-44.47, -15.53], [-44.82, -15.68], [-44.97, -16.03], [-45.37, -16.2], [-45.25, -16.5], [-45.47, -17.03], [-46.0, -17.25], [-46.53, -17.03], [-46.68, -16.68], [-47.03, -16.53], [-47.18, -16.18], [-47.25, -16.15], [-47.5, -16.25], [-47.75, -16.15], [-48.0, -16.25], [-48.53, -16.03]]]]}, "2026-08-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-48.53, -16.03], [-48.75, -15.5], [-48.53, -14.97], [-48.0, -14.75], [-47.75, -14.85], [-47.5, -14.75], [-47.25, -14.85], [-47.0, -14.75], [-46.75, -14.85], [-46.68, -14.82], [-46.53, -14.47], [-46.18, -14.32], [-46.15, -14.25], [-46.25, -14.0], [-46.15, -13.75], [-46.18, -13.68], [-46.53, -13.53], [-46.75, -13.0], [-46.53, -12.47], [-46.0, -12.25], [-45.47, -12.47], [-45.32, -12.82], [-45.2, -12.88], [-45.03, -12.47], [-44.68, -12.32], [-44.53, -11.97], [-44.0, -11.75], [-43.7, -11.88], [-43.53, -11.47], [-43.18, -11.32], [-43.03, -10.97], [-42.5, -10.75], [-41.97, -10.97], [-41.75, -11.5], [-41.97, -12.03], [-42.32, -12.18], [-42.35, -12.25], [-42.32, -12.32], [-42.25, -12.35], [-42.0, -12.25], [-41.47, -12.47], [-41.25, -13.0], [-41.47, -13.53], [-41.82, -13.68], [-41.97, -14.03], [-42.5, -14.25], [-43.03, -14.03], [-43.2, -13.62], [-43.5, -13.75], [-43.8, -13.62], [-43.97, -14.03], [-44.32, -14.18], [-44.46, -14.5], [-44.25, -15.0], [-44.47, -15.53], [-44.82, -15.68], [-44.97, -16.03], [-45.37, -16.2], [-45.25, -16.5], [-45.47, -17.03], [-46.0, -17.25], [-46.53, -17.03], [-46.68, -16.68], [-47.03, -16.53], [-47.18, -16.18], [-47.25, -16.15], [-47.5, -16.25], [-47.75, -16.15], [-48.0, -16.25], [-48.53, -16.03]]]]}, "2026-08-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-48.53, -16.03], [-48.75, -15.5], [-48.53, -14.97], [-48.0, -14.75], [-47.75, -14.85], [-47.5, -14.75], [-47.25, -14.85], [-47.0, -14.75], [-46.75, -14.85], [-46.68, -14.82], [-46.53, 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[-47.75, -16.15], [-48.0, -16.25], [-48.53, -16.03]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 4.516233720084529}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 2.9421189981451192}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [20.590886688232445, 25.292582906087205, 26.0773454284668, 26.581899973551458]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [20.590886688232445, 28.04077301025393, 29.13394699096682, 29.48269424438479]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.7137729443747958, 2.4205945518696264, 3.054150730218023, 3.4007455544985215]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.7137729443747958, 3.6636937187573153, 4.086250063337275, 4.516233720084529]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.351842991814619, 1.6527655200122087, 2.1402021776883586, 2.418575573230221]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.351842991814619, 2.469789534069357, 2.9148270340074225, 3.165421513900292]}}