{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 17:08:33.855185", "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-Oct-22_to_2025-Oct-29_318.0_-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": 2025100002160}, "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": "October 22 2025"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "October 29 2025"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 8}, "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": 98742.46908233914}, "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": -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": 318.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "318.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 314.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 320.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -4.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -2.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-45.25, -2.35], [-45.0, -2.25], [-44.75, -2.35], [-44.68, -2.32], [-44.53, -1.97], [-44.0, -1.75], [-43.75, -1.85], [-43.5, -1.75], [-43.25, -1.85], [-43.0, -1.75], [-42.47, -1.97], [-42.32, -2.32], [-42.25, -2.35], [-42.0, -2.25], [-41.75, -2.35], [-41.5, -2.25], [-41.25, -2.35], [-41.0, -2.25], [-40.75, -2.35], [-40.5, -2.25], [-40.25, -2.35], [-40.0, -2.25], [-39.47, -2.47], [-39.25, -3.0], [-39.47, -3.53], [-39.82, -3.68], [-39.97, -4.03], [-40.5, -4.25], [-40.75, -4.15], [-41.0, -4.25], [-41.25, -4.15], [-41.32, -4.18], [-41.47, -4.53], [-41.82, -4.68], [-41.97, -5.03], [-42.5, -5.25], [-43.03, -5.03], [-43.18, -4.68], [-43.25, -4.65], [-43.5, -4.75], [-44.0, -4.54], [-44.5, -4.75], [-44.75, -4.65], [-45.0, -4.75], [-45.53, -4.53], [-45.75, -4.0], [-45.65, -3.75], [-45.68, -3.68], [-46.03, -3.53], [-46.25, -3.0], [-46.03, -2.47], [-45.5, -2.25], [-45.25, -2.35]]]]}}, "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": {"2025-10-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-43.25, -3.0], [-43.02999999999997, -2.47], [-42.5, -2.25], [-42.25, -2.35], [-42.0, -2.25], [-41.75, -2.35], [-41.5, -2.25], [-40.97000000000003, -2.47], [-40.75, -3.0], [-40.85000000000002, -3.25], [-40.75, -3.5], [-40.97000000000003, -4.03], [-41.5, -4.25], [-41.75, -4.15], [-42.0, -4.25], [-42.25, -4.15], [-42.5, -4.25], [-43.02999999999997, -4.03], [-43.25, -3.5], [-43.14999999999998, -3.25], [-43.25, -3.0]]]]}, "2025-10-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-44.52999999999997, -1.97], [-44.0, -1.75], [-43.75, -1.85], [-43.5, -1.75], [-43.25, -1.85], [-43.0, -1.75], [-42.47000000000003, -1.97], [-42.31999999999999, -2.32], [-42.25, -2.35], [-42.0, -2.25], [-41.75, -2.35], [-41.5, -2.25], [-41.25, -2.35], [-41.0, -2.25], [-40.75, -2.35], [-40.5, -2.25], [-40.25, -2.35], [-40.0, -2.25], [-39.47000000000003, -2.47], [-39.25, -3.0], [-39.47000000000003, -3.53], [-39.81999999999999, -3.68], [-39.97000000000003, -4.03], [-40.5, -4.25], [-40.75, -4.15], [-41.0, -4.25], [-41.25, -4.15], [-41.5, -4.25], [-41.75, -4.15], [-42.0, -4.25], [-42.25, -4.15], [-42.5, -4.25], [-42.75, -4.15], [-43.0, -4.25], [-43.25, -4.15], [-43.5, -4.25], [-44.02999999999997, -4.03], [-44.18000000000001, -3.68], [-44.25, -3.65], [-44.5, -3.75], [-45.02999999999997, -3.53], [-45.25, -3.0], [-45.02999999999997, -2.47], [-44.68000000000001, -2.32], [-44.52999999999997, -1.97]]]]}, "2025-10-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-45.0, -3.75], [-45.52999999999997, -3.53], [-45.75, -3.0], [-45.52999999999997, -2.47], [-45.0, -2.25], [-44.75, -2.35], [-44.68000000000001, -2.32], [-44.52999999999997, -1.97], [-44.0, -1.75], [-43.75, -1.85], [-43.5, -1.75], [-43.25, -1.85], [-43.0, -1.75], [-42.47000000000003, -1.97], [-42.31999999999999, -2.32], [-42.25, -2.35], [-42.0, -2.25], [-41.75, -2.35], [-41.5, -2.25], [-41.25, -2.35], [-41.0, -2.25], [-40.75, -2.35], [-40.5, -2.25], [-40.25, -2.35], [-40.0, -2.25], [-39.47000000000003, -2.47], [-39.25, -3.0], [-39.47000000000003, -3.53], [-39.81999999999999, -3.68], [-39.97000000000003, -4.03], [-40.5, -4.25], [-40.75, -4.15], [-41.0, -4.25], [-41.25, -4.15], [-41.5, -4.25], [-41.75, -4.15], [-42.0, -4.25], [-42.25, -4.15], [-42.5, -4.25], [-42.75, -4.15], [-43.0, -4.25], [-43.25, -4.15], [-43.5, -4.25], [-44.02999999999997, -4.03], [-44.18000000000001, -3.68], [-44.25, -3.65], [-44.5, -3.75], [-44.75, -3.65], [-45.0, -3.75]]]]}, "2025-10-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-45.75, -3.0], [-45.52999999999997, -2.47], [-45.0, -2.25], [-44.75, -2.35], [-44.68000000000001, -2.32], [-44.52999999999997, -1.97], [-44.0, -1.75], [-43.75, -1.85], [-43.5, -1.75], [-43.25, -1.85], [-43.0, -1.75], [-42.47000000000003, -1.97], [-42.31999999999999, -2.32], [-42.25, -2.35], [-42.0, -2.25], [-41.75, -2.35], [-41.5, -2.25], [-41.25, -2.35], [-41.0, -2.25], [-40.75, -2.35], [-40.5, -2.25], [-40.25, -2.35], [-40.0, -2.25], [-39.47000000000003, -2.47], [-39.25, -3.0], [-39.47000000000003, -3.53], [-39.81999999999999, -3.68], [-39.97000000000003, -4.03], [-40.5, -4.25], [-40.75, -4.15], [-41.0, -4.25], [-41.25, -4.15], [-41.31999999999999, -4.18], [-41.47000000000003, -4.53], [-41.81999999999999, -4.68], [-41.97000000000003, -5.03], [-42.5, -5.25], [-43.02999999999997, -5.03], [-43.18000000000001, -4.68], [-43.25, -4.65], [-43.5, -4.75], [-44.0, -4.54], [-44.5, -4.75], [-45.02999999999997, -4.53], [-45.18000000000001, -4.18], [-45.52999999999997, -4.03], [-45.75, -3.5], [-45.64999999999998, -3.25], [-45.75, -3.0]]]]}, "2025-10-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-46.02999999999997, -3.53], [-46.25, -3.0], [-46.02999999999997, -2.47], [-45.5, -2.25], [-45.25, -2.35], [-45.0, -2.25], [-44.75, -2.35], [-44.68000000000001, -2.32], [-44.52999999999997, -1.97], [-44.0, -1.75], [-43.47000000000003, -1.97], [-43.31999999999999, -2.32], [-43.25, -2.35], [-43.0, -2.25], [-42.75, -2.35], [-42.5, -2.25], [-42.25, -2.35], [-42.0, -2.25], [-41.75, -2.35], [-41.5, -2.25], [-40.97000000000003, -2.47], [-40.75, -3.0], [-40.85000000000002, -3.25], [-40.75, -3.5], [-40.97000000000003, -4.03], [-41.31999999999999, -4.18], [-41.47000000000003, -4.53], [-41.81999999999999, -4.68], [-41.97000000000003, -5.03], [-42.5, -5.25], [-43.02999999999997, -5.03], [-43.18000000000001, -4.68], [-43.25, -4.65], [-43.5, -4.75], [-44.0, -4.54], [-44.5, -4.75], [-45.02999999999997, -4.53], [-45.18000000000001, -4.18], [-45.52999999999997, -4.03], [-45.68000000000001, -3.68], [-46.02999999999997, -3.53]]]]}, "2025-10-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-46.02999999999997, -3.53], [-46.25, -3.0], [-46.02999999999997, -2.47], [-45.5, -2.25], [-45.25, -2.35], [-45.0, -2.25], [-44.75, -2.35], [-44.68000000000001, -2.32], [-44.52999999999997, -1.97], [-44.0, -1.75], [-43.47000000000003, -1.97], [-43.31999999999999, -2.32], [-43.25, -2.35], [-43.0, -2.25], [-42.75, -2.35], [-42.5, -2.25], [-42.25, -2.35], [-42.0, -2.25], [-41.75, -2.35], [-41.5, -2.25], [-40.97000000000003, -2.47], [-40.75, -3.0], [-40.85000000000002, -3.25], [-40.75, -3.5], [-40.97000000000003, -4.03], [-41.31999999999999, -4.18], [-41.47000000000003, -4.53], [-41.81999999999999, -4.68], [-41.97000000000003, -5.03], [-42.5, -5.25], [-43.02999999999997, -5.03], [-43.18000000000001, -4.68], [-43.25, -4.65], [-43.5, -4.75], [-44.0, -4.54], [-44.5, -4.75], [-44.75, -4.65], [-45.0, -4.75], [-45.52999999999997, -4.53], [-45.75, -4.0], [-45.64999999999998, -3.75], [-45.68000000000001, -3.68], [-46.02999999999997, -3.53]]]]}, "2025-10-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-46.02999999999997, -3.53], [-46.25, -3.0], [-46.02999999999997, -2.47], [-45.5, -2.25], [-45.25, -2.35], [-45.0, -2.25], [-44.75, -2.35], [-44.68000000000001, -2.32], [-44.52999999999997, -1.97], [-44.0, -1.75], [-43.47000000000003, -1.97], [-43.31999999999999, -2.32], [-43.25, -2.35], [-43.0, -2.25], [-42.75, -2.35], [-42.5, -2.25], [-42.0, -2.46], [-41.5, -2.25], [-40.97000000000003, -2.47], [-40.75, -3.0], [-40.85000000000002, -3.25], [-40.75, -3.5], [-40.97000000000003, -4.03], [-41.31999999999999, -4.18], [-41.47000000000003, -4.53], [-41.81999999999999, -4.68], [-41.97000000000003, -5.03], [-42.5, -5.25], [-43.02999999999997, -5.03], [-43.18000000000001, -4.68], [-43.25, -4.65], [-43.5, -4.75], [-44.0, -4.54], [-44.5, -4.75], [-44.75, -4.65], [-45.0, -4.75], [-45.52999999999997, -4.53], [-45.75, -4.0], [-45.64999999999998, -3.75], [-45.68000000000001, -3.68], [-46.02999999999997, -3.53]]]]}, "2025-10-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-45.75, -3.5], [-45.64999999999998, -3.25], [-45.75, -3.0], [-45.52999999999997, -2.47], [-45.0, -2.25], [-44.75, -2.35], [-44.68000000000001, -2.32], [-44.52999999999997, -1.97], [-44.0, -1.75], [-43.47000000000003, -1.97], [-43.31999999999999, -2.32], [-43.25, -2.35], [-43.0, -2.25], [-42.75, -2.35], [-42.5, -2.25], [-42.0, -2.46], [-41.5, -2.25], [-40.97000000000003, -2.47], [-40.75, -3.0], [-40.85000000000002, -3.25], [-40.75, -3.5], [-40.97000000000003, -4.03], [-41.31999999999999, -4.18], [-41.47000000000003, -4.53], [-41.81999999999999, -4.68], [-41.97000000000003, -5.03], [-42.5, -5.25], [-43.02999999999997, -5.03], [-43.25, -4.5], [-43.14999999999998, -4.25], [-43.25, -4.0], [-43.14999999999998, -3.75], [-43.18000000000001, -3.68], [-43.25, -3.65], [-43.5, -3.75], [-43.75, -3.65], [-43.81999999999999, -3.68], [-43.85000000000002, -3.75], [-43.75, -4.0], [-43.97000000000003, -4.53], [-44.5, -4.75], [-44.75, -4.65], [-45.0, -4.75], [-45.52999999999997, -4.53], [-45.75, -4.0], [-45.64999999999998, -3.75], [-45.75, -3.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 1.9829918715602162}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.1915141228031536}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [30.23422436184353, 29.581337483723928, 29.83213480389304, 30.275870344373857, 30.373555755615314, 30.66429784139001, 30.454063207453032, 30.375052671079345]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [31.80300420125326, 31.935723876953148, 32.029299672444665, 32.7807721455892, 32.85247828165694, 32.97753677368166, 32.9393185933431, 32.68558146158858]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.0425372632643644, 1.0553124595600196, 1.2989708248990506, 1.289707510290998, 1.070471790542707, 1.329528105029699, 1.1393119236384373, 1.1369928368952142]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.4928496340830293, 1.602262362793681, 1.8929619248718268, 1.9829918715602162, 1.7519760072901818, 1.929148470093196, 1.8848503295802175, 1.7016595297591834]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.5337474514897467, 1.8294251102514276, 2.2910291582626057, 1.9992180636943118, 1.556346864204766, 1.9216758871878068, 1.6067184831686745, 1.6062058115875564]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.793023395265206, 2.683314070936301, 3.2663673604876178, 2.797574512261326, 2.1387475261079327, 2.3603018398545093, 2.044074040532705, 2.13067426009811]}}