{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 17:08:03.547148", "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-24_to_2025-Sep-27_299.0_-15.0"}, "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": 2025090002522}, "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 24 2025"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "September 27 2025"}, "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": 56584.888428674705}, "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": ["Bolivia, Plurinational State of", "Brazil"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["America", "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": -15.0}, "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": 299.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "299.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 297.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 301.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -16.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -14.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-62.5, -14.75], [-62.25, -14.85], [-62.18, -14.82], [-62.03, -14.47], [-61.5, -14.25], [-61.25, -14.35], [-61.18, -14.32], [-61.03, -13.97], [-60.5, -13.75], [-59.97, -13.97], [-59.82, -14.32], [-59.75, -14.35], [-59.5, -14.25], [-58.97, -14.47], [-58.82, -14.82], [-58.47, -14.97], [-58.25, -15.5], [-58.47, -16.03], [-58.82, -16.18], [-58.85, -16.25], [-58.75, -16.5], [-58.97, -17.03], [-59.5, -17.25], [-59.75, -17.15], [-60.0, -17.25], [-60.53, -17.03], [-60.68, -16.68], [-61.03, -16.53], [-61.18, -16.18], [-61.3, -16.12], [-61.47, -16.53], [-62.0, -16.75], [-62.53, -16.53], [-62.68, -16.18], [-63.03, -16.03], [-63.25, -15.5], [-63.03, -14.97], [-62.5, -14.75]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["South-American-Monsoon"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2025-09-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-61.0, -15.75], [-61.52999999999997, -15.53], [-61.75, -15.0], [-61.52999999999997, -14.47], [-61.0, -14.25], [-60.47000000000003, -14.47], [-60.30000000000001, -14.88], [-60.0, -14.75], [-59.47000000000003, -14.97], [-59.25, -15.5], [-59.47000000000003, -16.03], [-60.0, -16.25], [-60.52999999999997, -16.03], [-60.69999999999999, -15.62], [-61.0, -15.75]]]]}, "2025-09-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-63.02999999999997, -16.03], [-63.25, -15.5], [-63.02999999999997, -14.97], [-62.5, -14.75], [-62.25, -14.85], [-62.18000000000001, -14.82], [-62.02999999999997, -14.47], [-61.5, -14.25], [-61.25, -14.35], [-61.18000000000001, -14.32], [-61.02999999999997, -13.97], [-60.5, -13.75], [-59.97000000000003, -13.97], [-59.81999999999999, -14.32], [-59.75, -14.35], [-59.5, -14.25], [-58.97000000000003, -14.47], [-58.81999999999999, -14.82], [-58.47000000000003, -14.97], [-58.25, -15.5], [-58.47000000000003, -16.03], [-58.81999999999999, -16.18], [-58.85000000000002, -16.25], [-58.75, -16.5], [-58.97000000000003, -17.03], [-59.5, -17.25], [-59.75, -17.15], [-60.0, -17.25], [-60.52999999999997, -17.03], [-60.68000000000001, -16.68], [-61.02999999999997, -16.53], [-61.18000000000001, -16.18], [-61.30000000000001, -16.12], [-61.47000000000003, -16.53], [-62.0, -16.75], [-62.52999999999997, -16.53], [-62.68000000000001, -16.18], [-63.02999999999997, -16.03]]]]}, "2025-09-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-63.02999999999997, -16.03], [-63.25, -15.5], [-63.02999999999997, -14.97], [-62.5, -14.75], [-62.25, -14.85], [-62.18000000000001, -14.82], [-62.02999999999997, -14.47], [-61.5, -14.25], [-61.25, -14.35], [-61.18000000000001, -14.32], [-61.02999999999997, -13.97], [-60.5, -13.75], [-59.97000000000003, -13.97], [-59.81999999999999, -14.32], [-59.75, -14.35], [-59.5, -14.25], [-58.97000000000003, -14.47], [-58.81999999999999, -14.82], [-58.47000000000003, -14.97], [-58.25, -15.5], [-58.47000000000003, -16.03], [-58.81999999999999, -16.18], [-58.85000000000002, -16.25], [-58.75, -16.5], [-58.97000000000003, -17.03], [-59.5, -17.25], [-59.75, -17.15], [-60.0, -17.25], [-60.52999999999997, -17.03], [-60.68000000000001, -16.68], [-61.02999999999997, -16.53], [-61.18000000000001, -16.18], [-61.30000000000001, -16.12], [-61.47000000000003, -16.53], [-62.0, -16.75], [-62.52999999999997, -16.53], [-62.68000000000001, -16.18], [-63.02999999999997, -16.03]]]]}, "2025-09-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-63.02999999999997, -16.03], [-63.25, -15.5], [-63.02999999999997, -14.97], [-62.5, -14.75], [-62.25, -14.85], [-62.18000000000001, -14.82], [-62.02999999999997, -14.47], [-61.5, -14.25], [-61.25, -14.35], [-61.18000000000001, -14.32], [-61.02999999999997, -13.97], [-60.5, -13.75], [-59.97000000000003, -13.97], [-59.81999999999999, -14.32], [-59.75, -14.35], [-59.5, -14.25], [-58.97000000000003, -14.47], [-58.81999999999999, -14.82], [-58.47000000000003, -14.97], [-58.25, -15.5], [-58.47000000000003, -16.03], [-58.81999999999999, -16.18], [-58.85000000000002, -16.25], [-58.75, -16.5], [-58.97000000000003, -17.03], [-59.5, -17.25], [-59.75, -17.15], [-60.0, -17.25], [-60.52999999999997, -17.03], [-60.68000000000001, -16.68], [-61.02999999999997, -16.53], [-61.18000000000001, -16.18], [-61.30000000000001, -16.12], [-61.47000000000003, -16.53], [-62.0, -16.75], [-62.52999999999997, -16.53], [-62.68000000000001, -16.18], [-63.02999999999997, -16.03]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 4.581418859425867}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 3.564154040651378}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [30.425608571370446, 29.790325151410002, 30.195124830279497, 29.95603647064746]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [30.471873219807946, 31.74982350667318, 31.817576344807946, 31.909795379638695]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.9730100911251043, 3.3362980987146695, 3.7868517262734858, 3.6315379758634814]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [3.006675892704493, 4.262166515631748, 4.403842482205164, 4.581418859425867]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.1539151501763416, 1.3015300151188056, 1.4162205128563066, 1.3391998209682752]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.1911109839366656, 1.7144345794380929, 1.626078798729648, 1.5573293646853996]}}