{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:13:39.782438", "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-Sep-07_to_2021-Sep-11_288.5_-43.0"}, "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": 2021090001595}, "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": "September 07 2021"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "September 11 2021"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 5}, "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": 66435.05621103759}, "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": -43.0}, "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": 288.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "288.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 286.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 289.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -44.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -40.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-74.04, -43.5], [-74.25, -43.0], [-74.03, -42.47], [-73.68, -42.32], [-73.65, -42.25], [-73.75, -42.0], [-73.53, -41.47], [-73.18, -41.32], [-73.15, -41.25], [-73.25, -41.0], [-73.15, -40.75], [-73.25, -40.5], [-73.15, -40.25], [-73.25, -40.0], [-73.03, -39.47], [-72.5, -39.25], [-72.25, -39.35], [-72.0, -39.25], [-71.75, -39.35], [-71.5, -39.25], [-70.97, -39.47], [-70.75, -40.0], [-70.85, -40.25], [-70.82, -40.32], [-70.47, -40.47], [-70.25, -41.0], [-70.47, -41.53], [-70.87, -41.7], [-70.82, -41.82], [-70.47, -41.97], [-70.25, -42.5], [-70.35, -42.75], [-70.25, -43.0], [-70.35, -43.25], [-70.25, -43.5], [-70.35, -43.75], [-70.25, -44.0], [-70.35, -44.25], [-70.25, -44.5], [-70.47, -45.03], [-71.0, -45.25], [-71.25, -45.15], [-71.5, -45.25], [-72.03, -45.03], [-72.25, -44.5], [-72.04, -44.0], [-72.25, -43.5], [-72.47, -44.03], [-72.82, -44.18], [-72.97, -44.53], [-73.5, -44.75], [-74.03, -44.53], [-74.25, -44.0], [-74.04, -43.5]], [[-72.15, -43.25], [-72.25, -43.0], [-72.35, -43.25], [-72.25, -43.5], [-72.15, -43.25]], [[-72.15, -42.75], [-72.18, -42.68], [-72.25, -42.65], [-72.32, -42.68], [-72.35, -42.75], [-72.25, -43.0], [-72.15, -42.75]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["S.W.South-America", "S.South-America"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2021-09-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-72.02999999999997, -42.47], [-71.5, -42.25], [-70.97000000000003, -42.47], [-70.75, -43.0], [-70.97000000000003, -43.53], [-71.5, -43.75], [-72.02999999999997, -43.53], [-72.25, -43.0], [-72.02999999999997, -42.47]]]]}, "2021-09-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-73.5, -44.75], [-74.02999999999997, -44.53], [-74.25, -44.0], [-74.02999999999997, -43.47], [-73.5, -43.25], [-72.97000000000003, -43.47], [-72.75, -44.0], [-72.97000000000003, -44.53], [-73.5, -44.75]]], [[[-72.02999999999997, -42.47], [-71.5, -42.25], [-70.97000000000003, -42.47], 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"value": [3.0283230331208415, 2.566240555620459, 3.0050523895778367, 2.8849472599675776, 3.1988467452027476]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [3.0283230331208415, 3.314643253897998, 4.126761809937307, 4.504975069883528, 5.078193410718768]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.6223045177520274, 1.3678121636136562, 1.6668296585834006, 1.5391998065802701, 1.6453392588871805]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.6223045177520274, 1.5995462766078317, 2.1755195318500986, 2.0558670878355985, 2.1534875881379847]}}