{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:13:17.137006", "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": "2021-Aug-29_to_2021-Sep-01_288.0_-42.5"}, "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": 2021080003139}, "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 29 2021"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "September 01 2021"}, "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": 63037.84156551093}, "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": []}, "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": -42.5}, "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": 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": 286.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 288.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -43.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -38.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-71.35, -42.75], [-71.25, -43.0], [-71.35, -43.25], [-71.25, -43.5], [-71.47, -44.03], [-72.0, -44.25], [-72.53, -44.03], [-72.75, -43.5], [-72.65, -43.25], [-72.7, -43.12], [-73.0, -43.25], [-73.25, -43.15], [-73.5, -43.25], [-74.03, -43.03], [-74.25, -42.5], [-74.15, -42.25], [-74.18, -42.18], [-74.53, -42.03], [-74.75, -41.5], [-74.65, -41.25], [-74.75, -41.0], [-74.53, -40.47], [-74.0, -40.25], [-73.5, -40.46], [-73.18, -40.32], [-73.15, -40.25], [-73.25, -40.0], [-73.15, -39.75], [-73.25, -39.5], [-73.15, -39.25], [-73.25, -39.0], [-73.15, -38.75], [-73.25, -38.5], [-73.03, -37.97], [-72.68, -37.82], [-72.53, -37.47], [-72.0, -37.25], [-71.47, -37.47], [-71.25, -38.0], [-71.35, -38.25], [-71.25, -38.5], [-71.35, -38.75], [-71.25, -39.0], [-71.35, -39.25], [-71.25, -39.5], [-71.37, -39.8], [-70.97, -39.97], [-70.75, -40.5], [-70.96, -41.0], [-70.75, -41.5], [-70.97, -42.03], [-71.32, -42.18], [-71.35, -42.25], [-71.25, -42.5], [-71.35, -42.75]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["S.W.South-America"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2021-08-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-74.75, -41.0], [-74.52999999999997, -40.47], [-74.0, -40.25], [-73.5, -40.46], [-73.18, -40.32], [-73.14999999999998, -40.25], [-73.25, -40.0], [-73.14999999999998, -39.75], [-73.25, -39.5], [-73.14999999999998, -39.25], [-73.25, -39.0], [-73.14999999999998, -38.75], [-73.25, -38.5], [-73.02999999999997, -37.97], [-72.68, -37.82], [-72.52999999999997, -37.47], [-72.0, -37.25], [-71.47000000000003, -37.47], [-71.25, -38.0], [-71.35000000000002, -38.25], [-71.25, -38.5], [-71.35000000000002, -38.75], [-71.25, -39.0], [-71.35000000000002, -39.25], [-71.25, -39.5], [-71.37, -39.8], [-70.97000000000003, -39.97], [-70.75, -40.5], [-70.95999999999998, -41.0], [-70.75, -41.5], [-70.97000000000003, -42.03], [-71.32, -42.18], [-71.35000000000002, -42.25], [-71.25, -42.5], [-71.35000000000002, -42.75], [-71.25, -43.0], [-71.47000000000003, -43.53], [-72.0, -43.75], [-72.52999999999997, -43.53], [-72.69999999999999, -43.12], [-73.0, -43.25], [-73.25, -43.15], [-73.5, -43.25], [-74.02999999999997, -43.03], [-74.25, -42.5], [-74.14999999999998, -42.25], [-74.18, -42.18], [-74.52999999999997, -42.03], [-74.75, -41.5], [-74.64999999999998, -41.25], [-74.75, -41.0]]]]}, "2021-08-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-74.75, -41.0], [-74.52999999999997, -40.47], [-74.0, -40.25], [-73.5, -40.46], [-73.18, -40.32], [-73.14999999999998, -40.25], [-73.25, -40.0], [-73.14999999999998, -39.75], [-73.25, -39.5], [-73.14999999999998, -39.25], [-73.25, -39.0], [-73.14999999999998, -38.75], [-73.25, -38.5], [-73.02999999999997, -37.97], [-72.68, -37.82], [-72.52999999999997, -37.47], [-72.0, -37.25], [-71.47000000000003, -37.47], [-71.25, -38.0], [-71.35000000000002, -38.25], [-71.25, -38.5], [-71.35000000000002, -38.75], [-71.25, -39.0], [-71.35000000000002, 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-42.03], [-74.75, -41.5], [-74.64999999999998, -41.25], [-74.75, -41.0]]]]}, "2021-09-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-72.75, -43.0], [-72.64999999999998, -42.75], [-72.75, -42.5], [-72.52999999999997, -41.97], [-72.0, -41.75], [-71.47000000000003, -41.97], [-71.25, -42.5], [-71.35000000000002, -42.75], [-71.25, -43.0], [-71.35000000000002, -43.25], [-71.25, -43.5], [-71.47000000000003, -44.03], [-72.0, -44.25], [-72.52999999999997, -44.03], [-72.75, -43.5], [-72.64999999999998, -43.25], [-72.75, -43.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 5.28654897123954}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 3.251135326021593}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [9.373255171986159, 8.89446739634161, 8.2903946858641, 3.8086916649600653]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [13.25659219364826, 12.893629452330003, 11.931062182428661, 4.277112732535954]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [3.654861601188943, 3.3810197810118563, 2.8234319778300287, 2.432544313382929]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [5.28654897123954, 4.837007914590572, 3.578864070260977, 2.644293791608902]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.962212118557583, 1.8283885903307164, 1.524934892330604, 1.4898959466098807]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.4676487633061943, 2.452604558065457, 1.9289124657515857, 1.630195739708345]}}