{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 17:07:30.671978", "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-28_to_2025-Sep-02_296.0_-10.5"}, "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": 2025080002823}, "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 28 2025"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "September 02 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": 127407.20015648336}, "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": -10.5}, "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": 296.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "296.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 293.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 299.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -13.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -8.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-63.68, -12.68], [-63.75, -12.65], [-64.0, -12.75], [-64.53, -12.53], [-64.68, -12.18], [-64.75, -12.15], [-65.0, -12.25], [-65.53, -12.03], [-65.68, -11.68], [-66.03, -11.53], [-66.18, -11.18], [-66.53, -11.03], [-66.75, -10.5], [-66.65, -10.25], [-66.75, -10.0], [-66.65, -9.75], [-66.68, -9.68], [-66.75, -9.65], [-67.0, -9.75], [-67.53, -9.53], [-67.75, -9.0], [-67.53, -8.47], [-67.18, -8.32], [-67.03, -7.97], [-66.5, -7.75], [-66.25, -7.85], [-66.0, -7.75], [-65.47, -7.97], [-65.32, -8.32], [-64.97, -8.47], [-64.75, -9.0], [-64.85, -9.25], [-64.82, -9.32], [-64.47, -9.47], [-64.32, -9.82], [-64.25, -9.85], [-64.0, -9.75], [-63.75, -9.85], [-63.5, -9.75], [-62.97, -9.97], [-62.82, -10.32], [-62.75, -10.35], [-62.5, -10.25], [-62.25, -10.35], [-62.0, -10.25], [-61.47, -10.47], [-61.25, -11.0], [-61.46, -11.5], [-61.32, -11.82], [-60.97, -11.97], [-60.82, -12.32], [-60.47, -12.47], [-60.25, -13.0], [-60.35, -13.25], [-60.25, -13.5], [-60.47, -14.03], [-61.0, -14.25], [-61.53, -14.03], [-61.75, -13.5], [-61.65, -13.25], [-61.68, -13.18], [-61.75, -13.15], [-61.82, -13.18], [-61.97, -13.53], [-62.32, -13.68], [-62.47, -14.03], [-63.0, -14.25], [-63.53, -14.03], [-63.75, -13.5], [-63.54, -13.0], [-63.68, -12.68]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.South-America", "South-American-Monsoon"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2025-08-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-64.52999999999997, -9.97], [-64.0, -9.75], [-63.47000000000003, -9.97], [-63.25, -10.5], [-63.47000000000003, -11.03], [-64.0, -11.25], [-64.52999999999997, -11.03], [-64.75, -10.5], [-64.52999999999997, -9.97]]]]}, "2025-08-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-67.02999999999997, -9.03], [-67.25, -8.5], [-67.02999999999997, -7.97], [-66.5, -7.75], [-65.97000000000003, -7.97], [-65.82, -8.32], [-65.75, -8.35], [-65.5, -8.25], [-64.97000000000003, -8.47], [-64.75, -9.0], [-64.85000000000002, -9.25], [-64.82, -9.32], [-64.47000000000003, -9.47], [-64.32, -9.82], [-64.25, -9.85], [-64.0, -9.75], [-63.75, -9.85], [-63.5, -9.75], [-62.97000000000003, -9.97], [-62.81999999999999, -10.32], [-62.75, -10.35], [-62.5, -10.25], [-62.25, -10.35], [-62.0, -10.25], [-61.47000000000003, -10.47], [-61.25, -11.0], [-61.45999999999998, -11.5], [-61.31999999999999, -11.82], [-60.97000000000003, -11.97], [-60.81999999999999, -12.32], [-60.47000000000003, -12.47], [-60.25, -13.0], [-60.35000000000002, -13.25], [-60.25, -13.5], [-60.47000000000003, -14.03], [-61.0, -14.25], [-61.52999999999997, -14.03], [-61.75, -13.5], [-61.64999999999998, -13.25], [-61.68000000000001, -13.18], [-61.75, -13.15], [-61.81999999999999, -13.18], [-61.97000000000003, -13.53], [-62.5, -13.75], [-63.02999999999997, -13.53], [-63.18000000000001, -13.18], [-63.52999999999997, -13.03], [-63.68000000000001, -12.68], [-63.75, -12.65], [-64.0, -12.75], [-64.52999999999997, -12.53], [-64.68, -12.18], [-65.02999999999997, -12.03], [-65.18, -11.68], [-65.25, -11.65], [-65.5, -11.75], [-66.02999999999997, -11.53], [-66.18, -11.18], [-66.52999999999997, -11.03], [-66.75, -10.5], [-66.64999999999998, -10.25], [-66.75, -10.0], [-66.64999999999998, -9.75], [-66.75, -9.5], [-66.64999999999998, -9.25], [-66.68, -9.18], [-67.02999999999997, -9.03]]]]}, "2025-08-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-67.02999999999997, -7.97], [-66.5, -7.75], [-66.25, -7.85], [-66.0, -7.75], [-65.47000000000003, -7.97], [-65.32, -8.32], [-64.97000000000003, -8.47], [-64.75, -9.0], [-64.85000000000002, -9.25], [-64.82, -9.32], [-64.47000000000003, -9.47], [-64.32, -9.82], [-64.25, -9.85], [-64.0, -9.75], [-63.75, -9.85], [-63.5, -9.75], [-62.97000000000003, -9.97], [-62.81999999999999, -10.32], [-62.75, -10.35], [-62.5, -10.25], [-62.25, -10.35], [-62.0, -10.25], [-61.47000000000003, -10.47], [-61.25, -11.0], [-61.45999999999998, -11.5], [-61.31999999999999, -11.82], [-60.97000000000003, -11.97], [-60.81999999999999, -12.32], [-60.47000000000003, -12.47], [-60.25, -13.0], [-60.35000000000002, -13.25], [-60.25, -13.5], [-60.47000000000003, -14.03], [-61.0, -14.25], [-61.52999999999997, -14.03], [-61.75, -13.5], [-61.64999999999998, -13.25], [-61.68000000000001, -13.18], [-61.75, -13.15], [-61.81999999999999, -13.18], [-61.97000000000003, -13.53], [-62.31999999999999, -13.68], [-62.47000000000003, -14.03], [-63.0, -14.25], [-63.52999999999997, -14.03], [-63.75, -13.5], [-63.54000000000002, -13.0], [-63.68000000000001, -12.68], [-63.75, -12.65], [-64.0, -12.75], [-64.52999999999997, -12.53], [-64.68, -12.18], [-64.75, -12.15], [-65.0, -12.25], [-65.52999999999997, -12.03], [-65.68, -11.68], [-66.02999999999997, -11.53], [-66.18, -11.18], [-66.52999999999997, -11.03], [-66.75, -10.5], [-66.64999999999998, -10.25], [-66.75, -10.0], [-66.64999999999998, -9.75], [-66.68, -9.68], [-66.75, -9.65], [-67.0, -9.75], [-67.52999999999997, -9.53], [-67.75, -9.0], [-67.52999999999997, -8.47], [-67.18, -8.32], [-67.02999999999997, -7.97]]]]}, "2025-08-31T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-67.02999999999997, -7.97], [-66.5, -7.75], [-66.25, -7.85], [-66.0, -7.75], [-65.47000000000003, -7.97], [-65.32, -8.32], [-64.97000000000003, -8.47], [-64.75, -9.0], [-64.85000000000002, -9.25], [-64.82, -9.32], [-64.47000000000003, -9.47], [-64.32, -9.82], [-64.25, -9.85], [-64.0, -9.75], [-63.75, -9.85], [-63.5, -9.75], [-62.97000000000003, -9.97], [-62.81999999999999, -10.32], [-62.75, -10.35], [-62.5, -10.25], [-62.25, -10.35], [-62.0, -10.25], [-61.47000000000003, -10.47], [-61.25, -11.0], [-61.45999999999998, -11.5], [-61.31999999999999, -11.82], [-60.97000000000003, -11.97], [-60.81999999999999, -12.32], [-60.47000000000003, -12.47], [-60.25, -13.0], [-60.35000000000002, -13.25], [-60.25, -13.5], [-60.47000000000003, -14.03], [-61.0, -14.25], [-61.52999999999997, -14.03], [-61.75, -13.5], [-61.64999999999998, -13.25], [-61.68000000000001, -13.18], [-61.75, -13.15], [-61.81999999999999, -13.18], [-61.97000000000003, -13.53], [-62.31999999999999, -13.68], [-62.47000000000003, -14.03], [-63.0, -14.25], [-63.52999999999997, -14.03], [-63.75, -13.5], [-63.54000000000002, -13.0], [-63.68000000000001, -12.68], [-63.75, -12.65], [-64.0, -12.75], [-64.52999999999997, -12.53], [-64.68, -12.18], [-64.75, -12.15], [-65.0, -12.25], [-65.52999999999997, -12.03], [-65.68, -11.68], [-66.02999999999997, -11.53], [-66.18, -11.18], [-66.52999999999997, -11.03], [-66.75, -10.5], [-66.64999999999998, -10.25], [-66.75, -10.0], [-66.64999999999998, -9.75], [-66.68, -9.68], [-66.75, -9.65], [-67.0, -9.75], [-67.52999999999997, -9.53], [-67.75, -9.0], [-67.52999999999997, -8.47], [-67.18, -8.32], [-67.02999999999997, -7.97]]]]}, "2025-09-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-63.0, -14.25], [-63.52999999999997, -14.03], [-63.75, -13.5], [-63.52999999999997, -12.97], [-63.0, -12.75], [-62.47000000000003, -12.97], [-62.25, -13.5], [-62.47000000000003, -14.03], [-63.0, -14.25]]], [[[-61.52999999999997, -14.03], [-61.75, -13.5], [-61.52999999999997, -12.97], [-61.0, -12.75], [-60.47000000000003, -12.97], [-60.25, -13.5], [-60.47000000000003, -14.03], [-61.0, -14.25], [-61.52999999999997, -14.03]]], [[[-66.25, -7.85], [-66.0, -7.75], [-65.47000000000003, -7.97], [-65.32, -8.32], [-64.97000000000003, -8.47], [-64.75, -9.0], [-64.85000000000002, -9.25], [-64.82, -9.32], [-64.47000000000003, -9.47], [-64.32, -9.82], [-64.25, -9.85], [-64.0, -9.75], [-63.75, -9.85], [-63.5, -9.75], [-62.97000000000003, -9.97], [-62.75, -10.5], [-62.95999999999998, -11.0], [-62.75, -11.5], [-62.97000000000003, -12.03], [-63.5, -12.25], [-63.75, -12.15], [-64.0, -12.25], [-64.25, -12.15], [-64.5, -12.25], [-64.75, -12.15], [-65.0, -12.25], [-65.52999999999997, -12.03], [-65.68, -11.68], [-66.02999999999997, -11.53], [-66.25, -11.0], [-66.12, -10.7], [-66.52999999999997, -10.53], [-66.75, -10.0], [-66.64999999999998, -9.75], [-66.68, -9.68], [-66.75, -9.65], [-67.0, -9.75], [-67.52999999999997, -9.53], [-67.75, -9.0], [-67.52999999999997, -8.47], [-67.18, -8.32], [-67.02999999999997, -7.97], [-66.5, -7.75], [-66.25, -7.85]]]]}, "2025-09-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-61.52999999999997, -12.97], [-61.0, -12.75], [-60.47000000000003, -12.97], [-60.25, -13.5], [-60.47000000000003, -14.03], [-61.0, -14.25], [-61.52999999999997, -14.03], [-61.75, -13.5], [-61.52999999999997, -12.97]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 3.897289940531266}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 2.477350142924379}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [28.334968821207724, 28.575862039102162, 29.28479895213303, 28.73883178953139, 28.834814198811785, 28.30229848225912]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [28.334968821207724, 29.80092010498049, 30.231225585937523, 29.41410344441732, 29.641243235270224, 28.30229848225912]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.7372887813389752, 2.2507806167947413, 2.9120293389287637, 2.3505050754727446, 2.344503553617253, 1.9926153047690036]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.7372887813389752, 3.4632611070920234, 3.897289940531266, 3.0477836665733093, 3.1557916612583767, 1.9926153047690036]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.0890243737412464, 1.2977408013012628, 1.6658751437175885, 1.350429110248014, 1.4080167936198962, 0.9682448412342456]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.0890243737412464, 2.0489921409632714, 2.3358568280140823, 1.701542735839, 1.9271672277606005, 0.9682448412342456]}}