{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 17:07:28.335921", "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-25_to_2025-Aug-30_317.5_-5.0"}, "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": 2025080002610}, "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 25 2025"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 30 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": 55403.822619866114}, "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"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["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": -5.0}, "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": 317.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "317.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 317.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 321.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -6.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -4.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-38.25, -6.0], [-38.47, -6.53], [-39.0, -6.75], [-39.25, -6.65], [-39.5, -6.75], [-39.75, -6.65], [-40.0, -6.75], [-40.53, -6.53], [-40.68, -6.18], [-41.03, -6.03], [-41.18, -5.68], [-41.25, -5.65], [-41.5, -5.75], [-41.75, -5.65], [-41.82, -5.68], [-41.97, -6.03], [-42.5, -6.25], [-42.75, -6.15], [-43.0, -6.25], [-43.53, -6.03], [-43.75, -5.5], [-43.65, -5.25], [-43.75, -5.0], [-43.53, -4.47], [-43.0, -4.25], [-42.75, -4.35], [-42.5, -4.25], [-42.25, -4.35], [-42.0, -4.25], [-41.75, -4.35], [-41.62, -4.3], [-41.75, -4.0], [-41.53, -3.47], [-41.0, -3.25], [-40.47, -3.47], [-40.32, -3.82], [-39.97, -3.97], [-39.82, -4.32], [-39.5, -4.46], [-39.0, -4.25], [-38.47, -4.47], [-38.25, -5.0], [-38.35, -5.25], [-38.25, -5.5], [-38.35, -5.75], [-38.25, -6.0]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.E.South-America"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2025-08-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": 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[-38.47000000000003, -6.53], [-39.0, -6.75], [-39.25, -6.65], [-39.5, -6.75], [-39.75, -6.65], [-40.0, -6.75], [-40.52999999999997, -6.53]]], [[[-43.52999999999997, -4.47], [-43.0, -4.25], [-42.75, -4.35], [-42.5, -4.25], [-41.97000000000003, -4.47], [-41.75, -5.0], [-41.85000000000002, -5.25], [-41.75, -5.5], [-41.97000000000003, -6.03], [-42.5, -6.25], [-42.75, -6.15], [-43.0, -6.25], [-43.52999999999997, -6.03], [-43.75, -5.5], [-43.64999999999998, -5.25], [-43.75, -5.0], [-43.52999999999997, -4.47]]]]}, "2025-08-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-40.52999999999997, -6.53], [-40.75, -6.0], [-40.52999999999997, -5.47], [-40.0, -5.25], [-39.75, -5.35], [-39.5, -5.25], [-39.25, -5.35], [-39.0, -5.25], [-38.47000000000003, -5.47], [-38.25, -6.0], [-38.47000000000003, -6.53], [-39.0, -6.75], [-39.25, -6.65], [-39.5, -6.75], [-39.75, -6.65], [-40.0, -6.75], [-40.52999999999997, -6.53]]], [[[-43.52999999999997, -4.47], [-43.0, -4.25], [-42.75, -4.35], 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[1.4351039280847349, 1.3644512646284608, 1.1917609873638801, 1.0486672006668338, 1.0828912882347699, 1.0978134350366797]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.621136397857299, 1.6131074032135757, 1.4029666781045762, 1.5294175517971098, 1.2660279674581716, 1.3461431077930683]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.812318741190884, 1.7302813713485552, 1.5228258776999455, 1.3474200681934616, 1.414549467847582, 1.4904263019664088]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.0097579386498823, 2.0268374153715096, 1.7401014073561452, 1.8970730875251516, 1.708833871372987, 1.83468337262984]}}