{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:27:03.089570", "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-09_to_2021-Aug-11_297.0_-78.5"}, "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": 2021080001861}, "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 09 2021"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 11 2021"}, "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": 114852.00349305937}, "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": ["Antarctica"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["E.Antarctica", "W.Antarctica"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Antarctica"]}, "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": ["Southern 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": -78.5}, "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": 297.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "297.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 288.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 312.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -79.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -75.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2021-08-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-70.5, -77.25], [-70.25, -77.35], [-70.0, -77.25], [-69.75, -77.35], [-69.5, -77.25], [-69.25, -77.35], [-69.0, -77.25], [-68.75, -77.35], [-68.5, -77.25], [-68.25, -77.35], [-68.0, -77.25], [-67.75, -77.35], [-67.5, -77.25], [-67.25, -77.35], [-67.0, -77.25], [-66.75, -77.35], [-66.5, -77.25], [-66.25, -77.35], [-66.0, -77.25], [-65.75, -77.35], [-65.5, -77.25], [-65.25, -77.35], [-65.0, -77.25], [-64.75, -77.35], [-64.5, -77.25], [-64.25, -77.35], [-64.0, -77.25], [-63.75, -77.35], [-63.5, -77.25], [-63.25, -77.35], [-63.0, -77.25], [-62.75, -77.35], [-62.5, -77.25], [-62.25, -77.35], [-62.0, -77.25], [-61.75, -77.35], [-61.5, -77.25], [-61.25, -77.35], [-61.0, -77.25], [-60.75, -77.35], [-60.5, -77.25], [-60.25, -77.35], [-60.0, -77.25], [-59.75, -77.35], [-59.5, -77.25], [-59.25, -77.35], [-59.18, -77.32], [-59.03, -76.97], [-58.5, -76.75], [-58.25, -76.85], [-58.0, -76.75], [-57.75, -76.85], [-57.5, -76.75], [-57.25, -76.85], [-57.18, -76.82], [-57.03, -76.47], [-56.5, -76.25], [-56.25, -76.35], [-56.0, -76.25], [-55.75, -76.35], [-55.5, -76.25], [-55.25, -76.35], [-55.0, -76.25], [-54.75, -76.35], [-54.68, -76.32], [-54.53, -75.97], [-54.18, -75.82], [-54.03, -75.47], [-53.5, -75.25], [-52.97, -75.47], [-52.82, -75.82], [-52.75, -75.85], [-52.5, -75.75], [-51.97, -75.97], [-51.82, -76.32], [-51.75, -76.35], [-51.5, -76.25], [-51.25, -76.35], [-51.0, -76.25], [-50.75, -76.35], [-50.5, -76.25], [-50.25, -76.35], [-50.0, -76.25], [-49.75, -76.35], [-49.5, -76.25], [-49.25, -76.35], [-49.0, -76.25], [-48.75, -76.35], [-48.5, -76.25], [-48.25, -76.35], [-48.0, -76.25], [-47.47, -76.47], [-47.25, -77.0], [-47.47, -77.53], [-47.82, -77.68], [-47.97, -78.03], [-48.5, -78.25], [-48.75, -78.15], [-49.0, -78.25], [-49.25, -78.15], [-49.32, -78.18], [-49.47, -78.53], [-50.0, -78.75], [-50.25, -78.65], [-50.32, -78.68], [-50.47, -79.03], [-51.0, -79.25], [-51.25, -79.15], [-51.32, -79.18], [-51.47, -79.53], [-52.0, -79.75], [-52.25, -79.65], [-52.5, -79.75], [-52.75, -79.65], [-53.0, -79.75], [-53.25, -79.65], [-53.5, -79.75], [-53.75, -79.65], [-54.0, -79.75], [-54.25, -79.65], [-54.32, -79.68], [-54.47, -80.03], [-55.0, -80.25], [-55.25, -80.15], [-55.5, -80.25], [-55.75, -80.15], [-56.0, -80.25], [-56.25, -80.15], [-56.5, -80.25], [-56.75, -80.15], [-57.0, -80.25], [-57.25, -80.15], [-57.5, -80.25], [-57.75, -80.15], [-58.0, -80.25], [-58.25, -80.15], [-58.5, -80.25], [-58.75, -80.15], [-59.0, -80.25], [-59.25, -80.15], [-59.5, -80.25], [-59.75, -80.15], [-60.0, -80.25], [-60.25, -80.15], [-60.5, -80.25], [-60.75, -80.15], [-61.0, -80.25], [-61.25, -80.15], [-61.5, -80.25], [-61.75, -80.15], [-62.0, -80.25], [-62.25, -80.15], [-62.5, -80.25], [-62.75, -80.15], [-63.0, -80.25], [-63.25, -80.15], [-63.5, -80.25], [-63.75, -80.15], [-64.0, -80.25], [-64.25, -80.15], [-64.5, -80.25], [-64.75, -80.15], [-65.0, -80.25], [-65.25, -80.15], [-65.5, -80.25], [-65.75, -80.15], [-66.0, -80.25], [-66.25, -80.15], [-66.5, -80.25], [-67.03, -80.03], [-67.18, -79.68], [-67.25, -79.65], [-67.5, -79.75], [-68.03, -79.53], [-68.18, -79.18], [-68.25, -79.15], [-68.5, -79.25], [-68.75, -79.15], [-69.0, -79.25], [-69.25, -79.15], [-69.5, -79.25], [-69.75, -79.15], [-70.0, -79.25], [-70.25, -79.15], [-70.5, -79.25], [-70.75, -79.15], [-71.0, -79.25], [-71.53, -79.03], [-71.75, -78.5], [-71.53, -77.97], [-71.18, -77.82], [-71.03, -77.47], [-70.5, -77.25]]]]}, "2021-08-10T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-70.5, -77.25], [-70.25, -77.35], [-70.0, -77.25], [-69.75, -77.35], [-69.5, -77.25], [-69.25, -77.35], [-69.0, -77.25], [-68.75, -77.35], [-68.5, -77.25], [-68.25, -77.35], [-68.0, -77.25], [-67.75, -77.35], [-67.5, -77.25], [-67.25, -77.35], [-67.0, -77.25], [-66.75, -77.35], [-66.5, -77.25], [-66.25, -77.35], [-66.0, -77.25], [-65.75, -77.35], [-65.5, -77.25], [-65.25, -77.35], [-65.0, -77.25], [-64.75, -77.35], [-64.5, -77.25], [-64.25, -77.35], [-64.0, -77.25], [-63.75, -77.35], [-63.5, -77.25], [-63.25, -77.35], [-63.0, -77.25], [-62.75, -77.35], [-62.5, -77.25], [-62.25, -77.35], [-62.0, -77.25], [-61.75, -77.35], [-61.5, -77.25], [-61.25, -77.35], [-61.0, -77.25], [-60.75, -77.35], [-60.5, -77.25], [-60.25, -77.35], [-60.0, -77.25], [-59.75, -77.35], [-59.5, -77.25], [-59.25, -77.35], [-59.18, -77.32], [-59.03, -76.97], [-58.5, -76.75], [-58.25, -76.85], [-58.0, -76.75], [-57.75, -76.85], [-57.5, -76.75], [-57.25, -76.85], [-57.18, -76.82], [-57.03, -76.47], [-56.5, -76.25], [-56.25, -76.35], [-56.0, -76.25], [-55.75, -76.35], [-55.5, -76.25], [-55.25, -76.35], [-55.0, -76.25], [-54.75, -76.35], [-54.68, -76.32], [-54.53, -75.97], [-54.18, -75.82], [-54.03, -75.47], [-53.5, -75.25], [-52.97, -75.47], [-52.82, -75.82], [-52.75, -75.85], [-52.5, -75.75], [-51.97, -75.97], [-51.82, -76.32], [-51.75, -76.35], [-51.5, -76.25], [-51.25, -76.35], [-51.0, -76.25], [-50.75, -76.35], [-50.5, -76.25], [-50.25, -76.35], [-50.0, -76.25], [-49.75, -76.35], [-49.5, -76.25], [-49.25, -76.35], [-49.0, -76.25], [-48.75, -76.35], [-48.5, -76.25], [-48.25, -76.35], [-48.0, -76.25], [-47.47, -76.47], [-47.25, -77.0], [-47.47, -77.53], [-47.82, -77.68], [-47.97, -78.03], [-48.5, -78.25], [-48.75, -78.15], [-49.0, -78.25], [-49.25, -78.15], [-49.32, -78.18], [-49.47, -78.53], [-50.0, -78.75], [-50.25, -78.65], [-50.32, -78.68], [-50.47, -79.03], [-51.0, -79.25], [-51.25, -79.15], [-51.32, -79.18], [-51.47, -79.53], [-52.0, -79.75], [-52.25, -79.65], [-52.5, -79.75], [-52.75, -79.65], [-53.0, -79.75], [-53.25, -79.65], [-53.5, -79.75], [-53.75, -79.65], [-54.0, -79.75], [-54.25, -79.65], [-54.32, -79.68], [-54.47, -80.03], [-55.0, -80.25], [-55.25, -80.15], [-55.5, -80.25], [-55.75, -80.15], [-56.0, -80.25], [-56.25, -80.15], [-56.5, -80.25], [-56.75, -80.15], [-57.0, -80.25], [-57.25, -80.15], [-57.5, -80.25], [-57.75, -80.15], [-58.0, -80.25], [-58.25, -80.15], [-58.5, -80.25], [-58.75, -80.15], [-59.0, -80.25], [-59.25, -80.15], [-59.5, -80.25], [-59.75, -80.15], [-60.0, -80.25], [-60.25, -80.15], [-60.5, -80.25], [-60.75, -80.15], [-61.0, -80.25], [-61.25, -80.15], [-61.5, -80.25], [-61.75, -80.15], [-62.0, -80.25], [-62.25, -80.15], [-62.5, -80.25], [-62.75, -80.15], [-63.0, -80.25], [-63.25, -80.15], [-63.5, -80.25], [-63.75, -80.15], [-64.0, -80.25], [-64.25, -80.15], [-64.5, -80.25], [-64.75, -80.15], [-65.0, -80.25], [-65.25, -80.15], [-65.5, -80.25], [-65.75, -80.15], [-66.0, -80.25], [-66.25, -80.15], [-66.5, -80.25], [-67.03, -80.03], [-67.18, -79.68], [-67.25, -79.65], [-67.5, -79.75], [-68.03, -79.53], [-68.18, -79.18], [-68.25, -79.15], [-68.5, -79.25], [-68.75, -79.15], [-69.0, -79.25], [-69.25, -79.15], [-69.5, -79.25], [-69.75, -79.15], [-70.0, -79.25], [-70.25, -79.15], [-70.5, -79.25], [-70.75, -79.15], [-71.0, -79.25], [-71.53, -79.03], [-71.75, -78.5], [-71.53, -77.97], [-71.18, -77.82], [-71.03, -77.47], [-70.5, -77.25]]]]}, "2021-08-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-70.5, -77.25], [-70.25, -77.35], [-70.0, -77.25], [-69.75, -77.35], [-69.5, -77.25], [-69.25, -77.35], [-69.0, -77.25], [-68.75, -77.35], [-68.5, -77.25], [-68.25, -77.35], [-68.0, -77.25], [-67.75, -77.35], [-67.5, -77.25], [-67.25, -77.35], [-67.0, -77.25], [-66.75, -77.35], [-66.5, -77.25], [-66.25, -77.35], [-66.0, -77.25], [-65.75, -77.35], [-65.5, -77.25], [-65.25, -77.35], [-65.0, -77.25], [-64.75, -77.35], [-64.5, -77.25], [-64.25, -77.35], [-64.0, -77.25], [-63.75, -77.35], [-63.5, -77.25], [-63.25, -77.35], [-63.0, -77.25], [-62.75, -77.35], [-62.5, -77.25], [-62.25, -77.35], [-62.0, -77.25], [-61.75, -77.35], [-61.5, -77.25], [-61.25, -77.35], [-61.0, -77.25], [-60.75, -77.35], [-60.5, -77.25], [-60.25, -77.35], [-60.0, -77.25], [-59.75, -77.35], [-59.5, -77.25], [-59.25, -77.35], [-59.18, -77.32], [-59.03, -76.97], [-58.5, -76.75], [-58.25, -76.85], [-58.0, -76.75], [-57.75, -76.85], [-57.5, -76.75], [-57.25, -76.85], [-57.18, -76.82], [-57.03, -76.47], [-56.5, -76.25], [-56.25, -76.35], [-56.0, -76.25], [-55.75, -76.35], [-55.5, -76.25], [-55.25, -76.35], [-55.0, -76.25], [-54.75, -76.35], [-54.68, -76.32], [-54.53, -75.97], [-54.18, -75.82], [-54.03, -75.47], [-53.5, -75.25], [-52.97, -75.47], [-52.82, -75.82], [-52.75, -75.85], [-52.5, -75.75], [-51.97, -75.97], [-51.82, -76.32], [-51.75, -76.35], [-51.5, -76.25], [-51.25, -76.35], [-51.0, -76.25], [-50.75, -76.35], [-50.5, -76.25], [-50.25, -76.35], [-50.0, -76.25], [-49.75, -76.35], [-49.5, -76.25], [-49.25, -76.35], [-49.0, -76.25], [-48.75, -76.35], [-48.5, -76.25], [-48.25, -76.35], [-48.0, -76.25], [-47.47, -76.47], [-47.25, -77.0], [-47.47, -77.53], [-47.82, -77.68], [-47.97, -78.03], [-48.5, -78.25], [-48.75, -78.15], [-49.0, -78.25], [-49.25, -78.15], [-49.32, -78.18], [-49.47, -78.53], [-50.0, -78.75], [-50.25, -78.65], [-50.32, -78.68], [-50.47, -79.03], [-51.0, -79.25], [-51.25, -79.15], [-51.32, -79.18], [-51.47, -79.53], [-52.0, -79.75], [-52.25, -79.65], [-52.5, -79.75], [-52.75, -79.65], [-53.0, -79.75], [-53.25, -79.65], [-53.5, -79.75], [-53.75, -79.65], [-54.0, -79.75], [-54.25, -79.65], [-54.32, -79.68], [-54.47, -80.03], [-55.0, -80.25], [-55.25, -80.15], [-55.5, -80.25], [-55.75, -80.15], [-56.0, -80.25], [-56.25, -80.15], [-56.5, -80.25], [-56.75, -80.15], [-57.0, -80.25], [-57.25, -80.15], [-57.5, -80.25], [-57.75, -80.15], [-58.0, -80.25], [-58.25, -80.15], [-58.5, -80.25], [-58.75, -80.15], [-59.0, -80.25], [-59.25, -80.15], [-59.5, -80.25], [-59.75, -80.15], [-60.0, -80.25], [-60.25, -80.15], [-60.5, -80.25], [-60.75, -80.15], [-61.0, -80.25], [-61.25, -80.15], [-61.5, -80.25], [-61.75, -80.15], [-62.0, -80.25], [-62.25, -80.15], [-62.5, -80.25], [-62.75, -80.15], [-63.0, -80.25], [-63.25, -80.15], [-63.5, -80.25], [-63.75, -80.15], [-64.0, -80.25], [-64.25, -80.15], [-64.5, -80.25], [-64.75, -80.15], [-65.0, -80.25], [-65.25, -80.15], [-65.5, -80.25], [-65.75, -80.15], [-66.0, -80.25], [-66.25, -80.15], [-66.5, -80.25], [-67.03, -80.03], [-67.18, -79.68], [-67.25, -79.65], [-67.5, -79.75], [-68.03, -79.53], [-68.18, -79.18], [-68.25, -79.15], [-68.5, -79.25], [-68.75, -79.15], [-69.0, -79.25], [-69.25, -79.15], [-69.5, -79.25], [-69.75, -79.15], [-70.0, -79.25], [-70.25, -79.15], [-70.5, -79.25], [-70.75, -79.15], [-71.0, -79.25], [-71.53, -79.03], [-71.75, -78.5], [-71.53, -77.97], [-71.18, -77.82], [-71.03, -77.47], [-70.5, -77.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 20.04792031231105}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 14.590603238843286}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [-24.04782988020611, -17.65780172806504, -22.629459823539065]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [-17.826762567002987, -14.334176188838171, -14.977781049738667]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [11.977696585704203, 18.367859845275284, 13.426253285550326]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [14.775937943819827, 20.04792031231105, 16.812396740141452]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.5305360501191245, 2.3918233925930776, 1.73985042478644]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.7374664503992203, 2.715691526234406, 2.142180920815175]}}