{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 17:03:20.344809", "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-Jan-28_to_2025-Jan-30_283.5_-43.5"}, "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": 2025010002420}, "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": "January 28 2025"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "January 30 2025"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 3}, "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": 82561.61173608534}, "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": ["Chile"]}, "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": ["Pacific 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": -43.5}, "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": 283.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "283.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 281.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 285.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -45.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -42.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-78.5, -42.75], [-78.25, -42.85], [-78.18, -42.82], [-78.03, -42.47], [-77.68, -42.32], [-77.53, -41.97], [-77.0, -41.75], [-76.75, -41.85], [-76.5, -41.75], [-76.0, -41.96], [-75.68, -41.82], [-75.53, -41.47], [-75.0, -41.25], [-74.47, -41.47], [-74.25, -42.0], [-74.46, -42.5], [-74.25, -43.0], [-74.35, -43.25], [-74.25, -43.5], [-74.35, -43.75], [-74.25, -44.0], [-74.35, -44.25], [-74.25, -44.5], [-74.35, -44.75], [-74.25, -45.0], [-74.47, -45.53], [-74.82, -45.68], [-74.97, -46.03], [-75.5, -46.25], [-76.03, -46.03], [-76.18, -45.68], [-76.25, -45.65], [-76.5, -45.75], [-77.03, -45.53], [-77.18, -45.18], [-77.25, -45.15], [-77.5, -45.25], [-78.03, -45.03], [-78.18, -44.68], [-78.25, -44.65], [-78.5, -44.75], [-79.03, -44.53], [-79.25, -44.0], [-79.15, -43.75], [-79.25, -43.5], [-79.03, -42.97], [-78.5, -42.75]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["S.W.South-America", "S.Pacific-Ocean"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2025-01-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-79.25, -43.5], [-79.02999999999997, -42.97], [-78.5, -42.75], [-78.25, -42.85], [-78.18, -42.82], [-78.02999999999997, -42.47], [-77.68, -42.32], [-77.52999999999997, -41.97], [-77.0, -41.75], [-76.75, -41.85], [-76.5, -41.75], [-76.0, -41.96], [-75.68, -41.82], [-75.52999999999997, -41.47], [-75.0, -41.25], [-74.47000000000003, -41.47], [-74.25, -42.0], [-74.45999999999998, -42.5], [-74.25, -43.0], [-74.35000000000002, -43.25], [-74.25, -43.5], [-74.35000000000002, -43.75], [-74.25, -44.0], [-74.35000000000002, -44.25], [-74.25, -44.5], [-74.35000000000002, -44.75], [-74.25, -45.0], [-74.47000000000003, -45.53], [-74.82, -45.68], [-74.97000000000003, -46.03], [-75.5, -46.25], [-76.02999999999997, -46.03], [-76.18, -45.68], [-76.25, -45.65], [-76.5, -45.75], [-77.02999999999997, -45.53], [-77.18, -45.18], [-77.25, -45.15], [-77.5, -45.25], [-78.02999999999997, -45.03], [-78.18, -44.68], [-78.25, -44.65], [-78.5, -44.75], [-79.02999999999997, -44.53], [-79.25, -44.0], [-79.14999999999998, -43.75], [-79.25, -43.5]]]]}, "2025-01-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-79.25, -43.5], [-79.02999999999997, -42.97], [-78.5, -42.75], [-78.25, -42.85], [-78.18, -42.82], [-78.02999999999997, -42.47], [-77.68, -42.32], [-77.52999999999997, -41.97], [-77.0, -41.75], [-76.75, -41.85], [-76.5, -41.75], [-76.0, -41.96], [-75.68, -41.82], [-75.52999999999997, -41.47], [-75.0, -41.25], [-74.47000000000003, -41.47], [-74.25, -42.0], [-74.45999999999998, -42.5], [-74.25, -43.0], [-74.35000000000002, -43.25], [-74.25, -43.5], [-74.35000000000002, -43.75], [-74.25, -44.0], [-74.35000000000002, -44.25], [-74.25, -44.5], [-74.35000000000002, -44.75], [-74.25, -45.0], [-74.47000000000003, -45.53], [-74.82, -45.68], [-74.97000000000003, -46.03], [-75.5, -46.25], [-76.02999999999997, -46.03], [-76.18, -45.68], [-76.25, -45.65], [-76.5, -45.75], [-77.02999999999997, -45.53], [-77.18, -45.18], [-77.25, -45.15], [-77.5, -45.25], [-78.02999999999997, -45.03], [-78.18, -44.68], [-78.25, -44.65], [-78.5, -44.75], [-79.02999999999997, -44.53], [-79.25, -44.0], [-79.14999999999998, -43.75], [-79.25, -43.5]]]]}, "2025-01-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-79.25, -43.5], [-79.02999999999997, -42.97], [-78.5, -42.75], [-78.25, -42.85], [-78.18, -42.82], [-78.02999999999997, -42.47], [-77.68, -42.32], [-77.52999999999997, -41.97], [-77.0, -41.75], [-76.75, -41.85], [-76.5, -41.75], [-76.0, -41.96], [-75.68, -41.82], [-75.52999999999997, -41.47], [-75.0, -41.25], [-74.47000000000003, -41.47], [-74.25, -42.0], [-74.45999999999998, -42.5], [-74.25, -43.0], [-74.35000000000002, -43.25], [-74.25, -43.5], [-74.35000000000002, -43.75], [-74.25, -44.0], [-74.35000000000002, -44.25], [-74.25, -44.5], [-74.35000000000002, -44.75], [-74.25, -45.0], [-74.47000000000003, -45.53], [-74.82, -45.68], [-74.97000000000003, -46.03], [-75.5, -46.25], [-76.02999999999997, -46.03], [-76.18, -45.68], [-76.25, -45.65], [-76.5, -45.75], [-77.02999999999997, -45.53], [-77.18, -45.18], [-77.25, -45.15], [-77.5, -45.25], [-78.02999999999997, -45.03], [-78.18, -44.68], [-78.25, -44.65], [-78.5, -44.75], [-79.02999999999997, -44.53], [-79.25, -44.0], [-79.14999999999998, -43.75], [-79.25, -43.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 2.6946595364022983}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 2.047093615785546}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [15.254867636190909, 16.04131301330017, 16.09813165750586]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [15.992700195312523, 16.859881337483728, 17.152051544189476]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.501255581430059, 2.280894063131802, 2.359131202794776]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.6791049335763546, 2.6552257020861134, 2.6946595364022983]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4217563201930266, 2.1445976718893447, 2.1876517492706267]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.5951825970902176, 2.386325741902876, 2.5138875008084165]}}