{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 17:02:43.442646", "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": "2024-Dec-23_to_2024-Dec-26_288.0_-53.0"}, "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": 2024120002018}, "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": "December 23 2024"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "December 26 2024"}, "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": 237263.09474311033}, "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": ["Argentina", "Chile"]}, "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": ["Atlantic Ocean"]}, "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": -53.0}, "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": 288.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "288.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 285.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 294.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -55.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -49.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-73.0, -48.25], [-72.47, -48.47], [-72.3, -48.88], [-72.18, -48.82], [-72.03, -48.47], [-71.5, -48.25], [-71.25, -48.35], [-71.0, -48.25], [-70.75, -48.35], [-70.5, -48.25], [-69.97, -48.47], [-69.82, -48.82], [-69.47, -48.97], [-69.25, -49.5], [-69.35, -49.75], [-69.32, -49.82], [-68.97, -49.97], [-68.75, -50.5], [-68.85, -50.75], [-68.82, -50.82], [-68.47, -50.97], [-68.25, -51.5], [-68.35, -51.75], [-68.32, -51.82], [-67.97, -51.97], [-67.82, -52.32], [-67.75, -52.35], [-67.5, -52.25], [-67.25, -52.35], [-67.0, -52.25], [-66.75, -52.35], [-66.5, -52.25], [-65.97, -52.47], [-65.75, -53.0], [-65.85, -53.25], [-65.82, -53.32], [-65.47, -53.47], [-65.25, -54.0], [-65.35, -54.25], [-65.25, -54.5], [-65.47, -55.03], [-66.0, -55.25], [-66.25, -55.15], [-66.5, -55.25], [-66.75, -55.15], [-66.82, -55.18], [-66.97, -55.53], [-67.5, -55.75], [-67.75, -55.65], [-68.0, -55.75], [-68.25, -55.65], [-68.5, -55.75], [-68.75, -55.65], [-69.0, -55.75], [-69.25, -55.65], [-69.5, -55.75], [-69.75, -55.65], [-70.0, -55.75], [-70.53, -55.53], [-70.68, -55.18], [-70.75, -55.15], [-71.0, -55.25], [-71.25, -55.15], [-71.5, -55.25], [-72.03, -55.03], [-72.18, -54.68], [-72.25, -54.65], [-72.5, -54.75], [-73.03, -54.53], [-73.18, -54.18], [-73.53, -54.03], [-73.68, -53.68], [-74.03, -53.53], [-74.25, -53.0], [-74.15, -52.75], [-74.25, -52.5], [-74.15, -52.25], [-74.18, -52.18], [-74.53, -52.03], [-74.68, -51.68], [-75.03, -51.53], [-75.25, -51.0], [-75.15, -50.75], [-75.25, -50.5], [-75.15, -50.25], [-75.25, -50.0], [-75.03, -49.47], [-74.5, -49.25], [-74.25, -49.35], [-74.18, -49.32], [-74.03, -48.97], [-73.68, -48.82], [-73.53, -48.47], [-73.0, -48.25]], [[-71.35, -49.75], [-71.32, -49.82], [-71.25, -49.85], [-71.0, -49.75], [-71.25, -49.65], [-71.32, -49.68], [-71.35, -49.75]], [[-70.75, -49.85], [-70.68, -49.82], [-70.65, -49.75], [-70.68, -49.68], [-70.75, -49.65], [-71.0, -49.75], [-70.75, -49.85]], [[-72.82, -49.68], [-72.87, -49.8], [-72.75, -49.85], [-72.68, -49.82], [-72.65, -49.75], [-72.7, -49.62], [-72.82, -49.68]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["S.South-America"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2024-12-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-73.75, -50.5], [-73.52999999999997, -49.97], [-73.0, -49.75], [-73.52999999999997, -49.53], [-73.75, -49.0], [-73.52999999999997, -48.47], [-73.0, -48.25], [-72.47000000000003, -48.47], [-72.30000000000001, -48.88], [-72.18, -48.82], [-72.02999999999997, -48.47], [-71.5, -48.25], [-70.97000000000003, -48.47], [-70.75, -49.0], [-70.97000000000003, -49.53], [-71.32, -49.68], [-71.37, -49.8], [-70.97000000000003, -49.97], [-70.75, -50.5], [-70.97000000000003, -51.03], [-71.5, -51.25], [-71.75, -51.15], [-72.0, -51.25], [-71.47000000000003, -51.47], [-71.25, -52.0], [-71.35000000000002, -52.25], [-71.32, -52.32], [-70.97000000000003, -52.47], [-70.75, -53.0], [-70.85000000000002, -53.25], [-70.75, -53.5], [-70.85000000000002, -53.75], [-70.80000000000001, -53.88], [-70.5, -53.75], [-70.25, -53.85], [-70.0, -53.75], [-69.75, -53.85], [-69.5, -53.75], [-69.25, -53.85], [-69.0, -53.75], [-68.75, -53.85], [-68.5, -53.75], [-68.25, -53.85], [-68.0, -53.75], [-67.47000000000003, -53.97], [-67.25, -54.5], [-67.47000000000003, -55.03], [-67.82, -55.18], [-67.97000000000003, -55.53], [-68.5, -55.75], [-68.75, -55.65], [-69.0, -55.75], [-69.25, -55.65], [-69.5, -55.75], [-70.02999999999997, -55.53], [-70.18, -55.18], [-70.25, -55.15], [-70.5, -55.25], [-71.02999999999997, -55.03], [-71.19999999999999, -54.62], [-71.5, -54.75], [-72.02999999999997, -54.53], [-72.18, -54.18], [-72.25, -54.15], [-72.5, -54.25], [-73.02999999999997, -54.03], [-73.25, -53.5], [-73.14999999999998, -53.25], [-73.18, -53.18], [-73.52999999999997, -53.03], [-73.75, -52.5], [-73.52999999999997, -51.97], [-73.18, -51.82], [-73.12, -51.7], [-73.52999999999997, -51.53], [-73.75, -51.0], [-73.64999999999998, -50.75], [-73.75, -50.5]], [[-72.57, -49.93], [-72.69999999999999, -49.62], [-73.0, -49.75], [-72.57, -49.93]], [[-72.30000000000001, -51.12], [-72.37, -51.3], [-72.25, -51.35], [-72.0, -51.25], [-72.30000000000001, -51.12]]]]}, "2024-12-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-75.25, -50.5], [-75.14999999999998, -50.25], [-75.25, -50.0], [-75.02999999999997, -49.47], [-74.5, -49.25], [-74.25, -49.35], [-74.18, -49.32], [-74.02999999999997, -48.97], [-73.68, -48.82], [-73.52999999999997, -48.47], [-73.0, -48.25], [-72.47000000000003, -48.47], [-72.30000000000001, -48.88], [-72.18, -48.82], [-72.02999999999997, -48.47], [-71.5, -48.25], [-71.25, -48.35], [-71.0, -48.25], [-70.75, -48.35], [-70.5, -48.25], [-69.97000000000003, -48.47], [-69.82, -48.82], [-69.47000000000003, -48.97], [-69.25, -49.5], [-69.35000000000002, -49.75], [-69.32, -49.82], [-68.97000000000003, -49.97], [-68.75, -50.5], [-68.85000000000002, -50.75], [-68.82, -50.82], [-68.47000000000003, -50.97], [-68.25, -51.5], [-68.35000000000002, -51.75], [-68.32, -51.82], [-67.97000000000003, -51.97], [-67.82, -52.32], [-67.75, -52.35], [-67.5, -52.25], [-67.25, -52.35], [-67.0, -52.25], [-66.75, -52.35], [-66.5, -52.25], [-65.97000000000003, -52.47], [-65.75, -53.0], [-65.85000000000002, -53.25], [-65.82, -53.32], [-65.47000000000003, -53.47], [-65.25, -54.0], [-65.35000000000002, -54.25], [-65.25, -54.5], [-65.47000000000003, -55.03], [-66.0, -55.25], [-66.25, -55.15], [-66.5, -55.25], [-66.75, -55.15], [-66.82, -55.18], [-66.97000000000003, -55.53], [-67.5, -55.75], [-67.75, -55.65], [-68.0, -55.75], [-68.25, -55.65], [-68.5, -55.75], [-68.75, -55.65], [-69.0, -55.75], [-69.25, -55.65], [-69.5, -55.75], [-69.75, -55.65], [-70.0, -55.75], [-70.52999999999997, -55.53], [-70.68, -55.18], [-70.75, -55.15], [-71.0, -55.25], [-71.25, -55.15], [-71.5, -55.25], [-72.02999999999997, -55.03], [-72.18, -54.68], [-72.25, -54.65], [-72.5, -54.75], [-73.02999999999997, -54.53], [-73.18, -54.18], [-73.52999999999997, -54.03], [-73.68, -53.68], [-74.02999999999997, -53.53], [-74.25, -53.0], [-74.14999999999998, -52.75], [-74.25, -52.5], [-74.14999999999998, -52.25], [-74.18, -52.18], [-74.52999999999997, -52.03], [-74.68, -51.68], [-75.02999999999997, -51.53], [-75.25, -51.0], [-75.14999999999998, -50.75], [-75.25, -50.5]], [[-70.64999999999998, -49.75], [-70.68, -49.68], [-70.75, -49.65], [-71.0, -49.75], [-70.75, -49.85], [-70.68, -49.82], [-70.64999999999998, -49.75]], [[-71.25, -49.65], [-71.32, -49.68], [-71.35000000000002, -49.75], [-71.32, -49.82], [-71.25, -49.85], [-71.0, -49.75], [-71.25, -49.65]], [[-72.64999999999998, -49.75], [-72.69999999999999, -49.62], [-72.82, -49.68], [-72.87, -49.8], [-72.75, -49.85], [-72.68, -49.82], [-72.64999999999998, -49.75]]]]}, "2024-12-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-75.25, -50.5], [-75.14999999999998, -50.25], [-75.25, -50.0], [-75.02999999999997, -49.47], [-74.5, -49.25], [-74.25, -49.35], [-74.18, -49.32], [-74.02999999999997, -48.97], [-73.68, -48.82], [-73.52999999999997, -48.47], [-73.0, -48.25], [-72.47000000000003, -48.47], [-72.30000000000001, -48.88], [-72.18, -48.82], [-72.02999999999997, -48.47], [-71.5, -48.25], [-71.25, -48.35], [-71.0, -48.25], [-70.75, -48.35], [-70.5, -48.25], [-69.97000000000003, -48.47], [-69.82, -48.82], [-69.47000000000003, -48.97], [-69.25, -49.5], [-69.35000000000002, -49.75], [-69.32, -49.82], [-68.97000000000003, -49.97], [-68.75, -50.5], [-68.85000000000002, -50.75], [-68.82, -50.82], [-68.47000000000003, -50.97], [-68.25, -51.5], [-68.35000000000002, -51.75], [-68.32, -51.82], [-67.97000000000003, -51.97], [-67.82, -52.32], [-67.75, -52.35], [-67.5, -52.25], [-67.25, -52.35], [-67.0, -52.25], [-66.75, -52.35], [-66.5, -52.25], [-65.97000000000003, -52.47], [-65.75, -53.0], [-65.85000000000002, -53.25], [-65.82, -53.32], [-65.47000000000003, -53.47], [-65.25, -54.0], [-65.35000000000002, -54.25], [-65.25, -54.5], [-65.47000000000003, -55.03], [-66.0, -55.25], [-66.25, -55.15], [-66.5, -55.25], [-66.75, -55.15], [-66.82, -55.18], [-66.97000000000003, -55.53], [-67.5, -55.75], [-67.75, -55.65], [-68.0, -55.75], [-68.25, -55.65], [-68.5, -55.75], [-68.75, -55.65], [-69.0, -55.75], [-69.25, -55.65], [-69.5, -55.75], [-69.75, -55.65], [-70.0, -55.75], [-70.52999999999997, -55.53], [-70.68, -55.18], [-70.75, -55.15], [-71.0, -55.25], [-71.25, -55.15], [-71.5, -55.25], [-72.02999999999997, -55.03], [-72.18, -54.68], [-72.25, -54.65], [-72.5, -54.75], [-73.02999999999997, -54.53], [-73.18, -54.18], [-73.52999999999997, -54.03], [-73.68, -53.68], [-74.02999999999997, -53.53], [-74.25, -53.0], [-74.14999999999998, -52.75], [-74.25, -52.5], [-74.14999999999998, -52.25], [-74.18, -52.18], [-74.52999999999997, -52.03], [-74.68, -51.68], [-75.02999999999997, -51.53], [-75.25, -51.0], [-75.14999999999998, -50.75], [-75.25, -50.5]], [[-70.64999999999998, -49.75], [-70.68, -49.68], [-70.75, -49.65], [-71.0, -49.75], [-70.75, -49.85], [-70.68, -49.82], [-70.64999999999998, -49.75]], [[-71.25, -49.65], [-71.32, -49.68], [-71.35000000000002, -49.75], [-71.32, -49.82], [-71.25, -49.85], [-71.0, -49.75], [-71.25, -49.65]], [[-72.64999999999998, -49.75], [-72.69999999999999, -49.62], [-72.82, -49.68], [-72.87, -49.8], [-72.75, -49.85], [-72.68, -49.82], [-72.64999999999998, -49.75]]]]}, "2024-12-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-75.25, -50.5], [-75.14999999999998, -50.25], [-75.25, -50.0], [-75.02999999999997, -49.47], [-74.5, -49.25], [-74.25, -49.35], [-74.18, -49.32], [-74.02999999999997, -48.97], [-73.68, -48.82], [-73.52999999999997, -48.47], [-73.0, -48.25], [-72.47000000000003, -48.47], [-72.30000000000001, -48.88], [-72.18, -48.82], [-72.02999999999997, -48.47], [-71.5, -48.25], [-71.25, -48.35], [-71.0, -48.25], [-70.75, -48.35], [-70.5, -48.25], [-69.97000000000003, -48.47], [-69.82, -48.82], [-69.47000000000003, -48.97], [-69.25, -49.5], [-69.35000000000002, -49.75], [-69.32, -49.82], [-68.97000000000003, -49.97], [-68.75, -50.5], [-68.85000000000002, -50.75], [-68.82, -50.82], [-68.47000000000003, -50.97], [-68.25, -51.5], [-68.35000000000002, -51.75], [-68.32, -51.82], [-67.97000000000003, -51.97], [-67.82, -52.32], [-67.75, -52.35], [-67.5, -52.25], [-67.25, -52.35], [-67.0, -52.25], [-66.75, -52.35], [-66.5, -52.25], [-65.97000000000003, -52.47], [-65.75, -53.0], [-65.85000000000002, -53.25], [-65.82, -53.32], [-65.47000000000003, -53.47], [-65.25, -54.0], [-65.35000000000002, -54.25], [-65.25, -54.5], [-65.47000000000003, -55.03], [-66.0, -55.25], [-66.25, -55.15], [-66.5, -55.25], [-66.75, -55.15], [-66.82, -55.18], [-66.97000000000003, -55.53], [-67.5, -55.75], [-67.75, -55.65], [-68.0, -55.75], [-68.25, -55.65], [-68.5, -55.75], [-68.75, -55.65], [-69.0, -55.75], [-69.25, -55.65], [-69.5, -55.75], [-69.75, -55.65], [-70.0, -55.75], [-70.52999999999997, -55.53], [-70.68, -55.18], [-70.75, -55.15], [-71.0, -55.25], [-71.25, -55.15], [-71.5, -55.25], [-72.02999999999997, -55.03], [-72.18, -54.68], [-72.25, -54.65], [-72.5, -54.75], [-73.02999999999997, -54.53], [-73.18, -54.18], [-73.52999999999997, -54.03], [-73.68, -53.68], [-74.02999999999997, -53.53], [-74.25, -53.0], [-74.14999999999998, -52.75], [-74.25, -52.5], [-74.14999999999998, -52.25], [-74.18, -52.18], [-74.52999999999997, -52.03], [-74.68, -51.68], [-75.02999999999997, -51.53], [-75.25, -51.0], [-75.14999999999998, -50.75], [-75.25, -50.5]], [[-70.64999999999998, -49.75], [-70.68, -49.68], [-70.75, -49.65], [-71.0, -49.75], [-70.75, -49.85], [-70.68, -49.82], [-70.64999999999998, -49.75]], [[-71.25, -49.65], [-71.32, -49.68], [-71.35000000000002, -49.75], [-71.32, -49.82], [-71.25, -49.85], [-71.0, -49.75], [-71.25, -49.65]], [[-72.64999999999998, -49.75], [-72.69999999999999, -49.62], [-72.82, -49.68], [-72.87, -49.8], [-72.75, -49.85], [-72.68, -49.82], [-72.64999999999998, -49.75]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 8.454767233114467}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 4.091567389920076}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [9.665843605700843, 12.154394797673376, 13.819866414549551, 12.995643103059706]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [14.04289016723635, 19.51305287679037, 22.249148305257165, 22.527959442138695]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.8453674817796997, 3.433052147247627, 5.007836908411626, 4.100855951559629]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [3.9896752519808274, 5.106658166953082, 8.454767233114467, 6.937004989887043]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.447522690094684, 1.6979324385000583, 2.4197316987480364, 1.9942942212207935]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.7163568644428315, 2.418280310837026, 2.970927907659293, 2.9168307909345534]}}