{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-05-20 10:52:03.674715", "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": "2026-Jan-20_to_2026-Jan-23_287.0_-47.0"}, "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": 2026010002103}, "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 20 2026"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "January 23 2026"}, "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": 72620.95375394677}, "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"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["S.South-America", "S.W.South-America"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["South 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": ["South 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": -47.0}, "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": 287.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "287.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 284.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 287.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -49.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -44.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2026-01-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-75.53, -44.47], [-75.18, -44.32], [-75.03, -43.97], [-74.5, -43.75], [-74.25, -43.85], [-74.0, -43.75], [-73.75, -43.85], [-73.5, -43.75], [-72.97, -43.97], [-72.82, -44.32], [-72.47, -44.47], [-72.32, -44.82], [-71.97, -44.97], [-71.75, -45.5], [-71.85, -45.75], [-71.75, -46.0], [-71.85, -46.25], [-71.75, -46.5], [-71.85, -46.75], [-71.75, -47.0], [-71.85, -47.25], [-71.75, -47.5], [-71.85, -47.75], [-71.75, -48.0], [-71.97, -48.53], [-72.37, -48.7], [-72.25, -49.0], [-72.47, -49.53], [-73.0, -49.75], [-73.53, -49.53], [-73.68, -49.18], [-74.03, -49.03], [-74.25, -48.5], [-74.12, -48.2], [-74.25, -48.15], [-74.5, -48.25], [-75.03, -48.03], [-75.25, -47.5], [-75.03, -46.97], [-74.62, -46.8], [-74.68, -46.68], [-74.75, -46.65], [-75.0, -46.75], [-75.53, -46.53], [-75.75, -46.0], [-75.54, -45.5], [-75.75, -45.0], [-75.53, -44.47]]]]}, "2026-01-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-75.53, -44.47], [-75.18, -44.32], [-75.03, -43.97], [-74.5, -43.75], [-74.25, -43.85], [-74.0, -43.75], [-73.75, -43.85], [-73.5, -43.75], [-72.97, -43.97], [-72.82, -44.32], [-72.47, -44.47], [-72.32, -44.82], [-71.97, -44.97], [-71.75, -45.5], [-71.85, -45.75], [-71.75, -46.0], [-71.85, -46.25], [-71.75, -46.5], [-71.85, -46.75], [-71.75, -47.0], [-71.85, -47.25], [-71.75, -47.5], [-71.85, -47.75], [-71.75, -48.0], [-71.97, -48.53], [-72.37, -48.7], [-72.25, -49.0], [-72.47, -49.53], [-73.0, -49.75], [-73.53, -49.53], [-73.68, -49.18], [-74.03, -49.03], [-74.25, -48.5], [-74.12, -48.2], [-74.25, -48.15], [-74.5, -48.25], [-75.03, -48.03], [-75.25, -47.5], [-75.03, -46.97], [-74.62, -46.8], [-74.68, -46.68], [-74.75, -46.65], [-75.0, -46.75], [-75.53, -46.53], [-75.75, -46.0], [-75.54, -45.5], [-75.75, -45.0], [-75.53, -44.47]]]]}, "2026-01-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-75.53, -44.47], [-75.18, -44.32], [-75.03, -43.97], [-74.5, -43.75], [-74.25, -43.85], [-74.0, -43.75], [-73.75, -43.85], [-73.5, -43.75], [-72.97, -43.97], [-72.82, -44.32], [-72.47, -44.47], [-72.32, -44.82], [-71.97, -44.97], [-71.75, -45.5], [-71.85, -45.75], [-71.75, -46.0], [-71.85, -46.25], [-71.75, -46.5], [-71.85, -46.75], [-71.75, -47.0], [-71.85, -47.25], [-71.75, -47.5], [-71.85, -47.75], [-71.75, -48.0], [-71.97, -48.53], [-72.37, -48.7], [-72.25, -49.0], [-72.47, -49.53], [-73.0, -49.75], [-73.53, -49.53], [-73.68, -49.18], [-74.03, -49.03], [-74.25, -48.5], [-74.12, -48.2], [-74.25, -48.15], [-74.5, -48.25], [-75.03, -48.03], [-75.25, -47.5], [-75.03, -46.97], [-74.62, -46.8], [-74.68, -46.68], [-74.75, -46.65], [-75.0, -46.75], [-75.53, -46.53], [-75.75, -46.0], [-75.54, -45.5], [-75.75, -45.0], [-75.53, -44.47]]]]}, "2026-01-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-74.15, -44.75], [-74.25, -44.5], [-74.03, -43.97], [-73.5, -43.75], [-72.97, -43.97], [-72.75, -44.5], [-72.85, -44.75], [-72.82, -44.82], [-72.47, -44.97], [-72.25, -45.5], [-72.35, -45.75], [-72.32, -45.82], [-71.97, -45.97], [-71.75, -46.5], [-71.85, -46.75], [-71.75, -47.0], [-71.85, -47.25], [-71.75, -47.5], [-71.85, -47.75], [-71.75, -48.0], [-71.97, -48.53], [-72.5, -48.75], [-73.03, -48.53], [-73.25, -48.0], [-73.15, -47.75], [-73.18, -47.68], [-73.53, -47.53], [-73.75, -47.0], [-73.54, -46.5], [-73.68, -46.18], [-74.03, -46.03], [-74.25, -45.5], [-74.15, -45.25], [-74.25, -45.0], [-74.15, -44.75]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 6.373836533915608}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 3.7513848924906137}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [13.976583398557182, 14.295388120763448, 14.570949958352514, 14.012623850504554]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [17.11314417521163, 17.913154856363974, 17.85456237792971, 15.746803538004599]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [3.4719905083081697, 3.7719191373963716, 4.064918082509327, 3.5654965199677235]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [4.925091864157082, 5.198799910193486, 6.373836533915608, 4.582910432856977]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4501842802602969, 1.561146101283739, 1.6511715452730849, 1.3433592611022709]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.7522136484603261, 1.9456737954206746, 2.4098762023679305, 1.6629806425557097]}}