{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:23:24.625136", "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": "2022-Sep-27_to_2022-Sep-29_287.0_-51.5"}, "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": 2022090002700}, "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 27 2022"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "September 29 2022"}, "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": 51984.99650171824}, "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": -51.5}, "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": 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": 286.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 289.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -53.5}, "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": [[[[-74.25, -51.5], [-74.15, -51.25], [-74.25, -51.0], [-74.03, -50.47], [-73.68, -50.32], [-73.65, -50.25], [-73.75, -50.0], [-73.53, -49.47], [-73.18, -49.32], [-73.03, -48.97], [-72.5, -48.75], [-72.25, -48.85], [-72.18, -48.82], [-72.03, -48.47], [-71.5, -48.25], [-70.97, -48.47], [-70.75, -49.0], [-70.97, -49.53], [-71.32, -49.68], [-71.46, -50.0], [-71.32, -50.32], [-70.97, -50.47], [-70.82, -50.82], [-70.75, -50.85], [-70.5, -50.75], [-69.97, -50.97], [-69.75, -51.5], [-69.97, -52.03], [-70.5, -52.25], [-70.75, -52.15], [-71.0, -52.25], [-71.5, -52.04], [-71.82, -52.18], [-71.87, -52.3], [-71.47, -52.47], [-71.25, -53.0], [-71.47, -53.53], [-71.82, -53.68], [-71.97, -54.03], [-72.5, -54.25], [-72.75, -54.15], [-73.0, -54.25], [-73.53, -54.03], [-73.68, -53.68], [-74.03, -53.53], [-74.25, -53.0], [-74.15, -52.75], [-74.25, -52.5], [-74.04, -52.0], [-74.25, -51.5]]]]}}, "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": {"2022-09-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-74.25, -52.5], [-74.04000000000002, -52.0], [-74.25, -51.5], [-74.14999999999998, -51.25], [-74.25, -51.0], [-74.02999999999997, -50.47], [-73.68, -50.32], [-73.64999999999998, -50.25], [-73.75, -50.0], [-73.52999999999997, -49.47], [-73.18, -49.32], [-73.02999999999997, -48.97], [-72.5, -48.75], [-72.25, -48.85], [-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], [-71.45999999999998, -50.0], [-71.32, -50.32], [-70.97000000000003, -50.47], [-70.82, -50.82], [-70.75, -50.85], [-70.5, -50.75], [-69.97000000000003, -50.97], [-69.75, -51.5], [-69.97000000000003, -52.03], [-70.5, -52.25], [-70.75, -52.15], [-71.0, -52.25], [-71.5, -52.04], [-71.82, -52.18], [-71.87, -52.3], [-71.47000000000003, -52.47], [-71.25, -53.0], [-71.47000000000003, -53.53], [-71.82, -53.68], [-71.97000000000003, -54.03], [-72.5, -54.25], [-72.75, -54.15], [-73.0, -54.25], [-73.52999999999997, -54.03], [-73.68, -53.68], [-74.02999999999997, -53.53], [-74.25, -53.0], [-74.14999999999998, -52.75], [-74.25, -52.5]]]]}, "2022-09-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-74.25, -52.5], [-74.04000000000002, -52.0], [-74.25, -51.5], [-74.14999999999998, -51.25], [-74.25, -51.0], [-74.02999999999997, -50.47], [-73.68, -50.32], [-73.64999999999998, -50.25], [-73.75, -50.0], [-73.52999999999997, -49.47], [-73.18, -49.32], [-73.02999999999997, -48.97], [-72.5, -48.75], [-72.25, -48.85], [-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], [-71.45999999999998, -50.0], [-71.32, -50.32], [-70.97000000000003, -50.47], [-70.82, -50.82], [-70.75, -50.85], [-70.5, -50.75], [-69.97000000000003, -50.97], [-69.75, -51.5], [-69.97000000000003, -52.03], [-70.5, -52.25], [-70.75, -52.15], [-71.0, -52.25], [-71.5, -52.04], [-71.82, -52.18], [-71.87, -52.3], [-71.47000000000003, -52.47], [-71.25, -53.0], [-71.47000000000003, -53.53], [-71.82, -53.68], [-71.97000000000003, -54.03], [-72.5, -54.25], [-72.75, -54.15], [-73.0, -54.25], [-73.52999999999997, -54.03], [-73.68, -53.68], [-74.02999999999997, -53.53], [-74.25, -53.0], [-74.14999999999998, -52.75], [-74.25, -52.5]]]]}, "2022-09-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-74.25, -52.5], [-74.04000000000002, -52.0], [-74.25, -51.5], [-74.14999999999998, -51.25], [-74.25, -51.0], [-74.02999999999997, -50.47], [-73.68, -50.32], [-73.64999999999998, -50.25], [-73.75, -50.0], [-73.52999999999997, -49.47], [-73.18, -49.32], [-73.02999999999997, -48.97], [-72.5, -48.75], [-72.25, -48.85], [-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], [-71.45999999999998, 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"value": [5.944955073028893, 6.725833262421816, 6.134618476985963]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [9.789243805403714, 10.51154093417341, 9.917274768314769]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.660373034521738, 3.454038040357716, 2.913314359104961]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [3.2476683012660033, 4.626019946145334, 3.949159119702472]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4242264453688145, 1.8722282932713765, 1.5720902881419494]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.8698506446295444, 2.661943303509904, 1.990641456666215]}}