{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:51:42.336707", "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": "2024-Apr-19_to_2024-Apr-22_44.0_-71.5"}, "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": 2024040001585}, "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": "April 19 2024"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "April 22 2024"}, "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": 84623.85379408476}, "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"]}, "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": []}, "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": -71.5}, "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": 44.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "44.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 37.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 48.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -73.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -69.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2024-04-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[38.5, -70.75], [38.75, -70.85], [39.0, -70.75], [39.25, -70.85], [39.5, -70.75], [39.75, -70.85], [40.0, -70.75], [40.25, -70.85], [40.5, -70.75], [40.75, -70.85], [40.82, -70.82], [40.97, -70.47], [41.5, -70.25], [41.75, -70.35], [42.0, -70.25], [42.25, -70.35], [42.32, -70.32], [42.47, -69.97], [43.0, -69.75], [43.25, -69.85], [43.32, -69.82], [43.47, -69.47], [44.0, -69.25], [44.25, -69.35], [44.5, -69.25], [44.75, -69.35], [44.82, -69.32], [44.97, -68.97], [45.5, -68.75], [46.03, -68.97], [46.18, -69.32], [46.25, -69.35], [46.5, -69.25], [47.03, -69.47], [47.18, -69.82], [47.25, -69.85], [47.5, -69.75], [48.03, -69.97], [48.18, -70.32], [48.25, -70.35], [48.5, -70.25], [49.03, -70.47], [49.25, -71.0], [49.15, -71.25], [49.25, -71.5], [49.03, -72.03], [48.68, -72.18], [48.53, -72.53], [48.0, -72.75], [47.75, -72.65], [47.5, -72.75], [47.25, -72.65], [47.0, -72.75], [46.75, -72.65], [46.5, -72.75], [46.25, -72.65], [46.0, -72.75], [45.75, -72.65], [45.5, -72.75], [45.25, -72.65], [45.18, -72.68], [45.03, -73.03], [44.5, -73.25], [44.25, -73.15], [44.0, -73.25], [43.75, -73.15], [43.5, -73.25], [43.25, -73.15], [43.0, -73.25], [42.75, -73.15], [42.5, -73.25], [42.25, -73.15], [42.0, -73.25], [41.75, -73.15], [41.5, -73.25], [41.25, -73.15], [41.0, -73.25], [40.75, -73.15], [40.5, -73.25], [40.25, -73.15], [40.0, -73.25], [39.75, -73.15], [39.5, -73.25], [38.97, -73.03], [38.82, -72.68], [38.75, -72.65], [38.5, -72.75], [38.25, -72.65], [38.0, -72.75], [37.47, -72.53], [37.25, -72.0], [37.47, -71.47], [37.82, -71.32], [37.97, -70.97], [38.5, -70.75]]]]}, "2024-04-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[38.5, -70.75], [38.75, -70.85], [39.0, -70.75], [39.25, -70.85], [39.5, -70.75], [39.75, -70.85], [40.0, -70.75], [40.25, -70.85], [40.5, -70.75], [40.75, -70.85], [40.82, -70.82], [40.97, -70.47], [41.5, -70.25], [41.75, -70.35], [42.0, -70.25], [42.25, -70.35], [42.32, -70.32], [42.47, -69.97], [43.0, -69.75], [43.25, -69.85], [43.32, -69.82], [43.47, -69.47], [44.0, -69.25], [44.25, -69.35], [44.5, -69.25], [44.75, -69.35], [44.82, -69.32], [44.97, -68.97], [45.5, -68.75], [46.03, -68.97], [46.18, -69.32], [46.25, -69.35], [46.5, -69.25], [47.03, -69.47], [47.18, -69.82], [47.25, -69.85], [47.5, -69.75], [48.03, -69.97], [48.18, -70.32], [48.25, -70.35], [48.5, -70.25], [49.03, -70.47], [49.25, -71.0], [49.15, -71.25], [49.25, -71.5], [49.03, -72.03], [48.68, -72.18], [48.53, -72.53], [48.0, -72.75], [47.75, -72.65], [47.5, -72.75], [47.25, -72.65], [47.0, -72.75], [46.75, -72.65], [46.5, -72.75], [46.25, -72.65], [46.0, -72.75], [45.75, -72.65], [45.5, -72.75], [45.25, -72.65], [45.18, -72.68], [45.03, -73.03], [44.5, -73.25], [44.25, -73.15], [44.0, -73.25], [43.75, -73.15], [43.5, -73.25], [43.25, -73.15], [43.0, -73.25], [42.75, -73.15], [42.5, -73.25], [42.25, -73.15], [42.0, -73.25], [41.75, -73.15], [41.5, -73.25], [41.25, -73.15], [41.18, -73.18], [41.03, -73.53], [40.5, -73.75], [39.97, -73.53], [39.82, -73.18], [39.75, -73.15], [39.5, -73.25], [38.97, -73.03], [38.82, -72.68], [38.75, -72.65], [38.5, -72.75], [38.25, -72.65], [38.0, -72.75], [37.47, -72.53], [37.25, -72.0], [37.47, -71.47], [37.82, -71.32], [37.97, -70.97], [38.5, -70.75]]]]}, "2024-04-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[38.5, -70.75], [38.75, -70.85], [39.0, -70.75], [39.25, -70.85], [39.5, -70.75], [39.75, -70.85], [40.0, -70.75], [40.25, -70.85], [40.5, -70.75], [40.75, -70.85], [40.82, -70.82], [40.97, -70.47], [41.5, -70.25], [41.75, -70.35], [42.0, -70.25], [42.25, -70.35], [42.32, -70.32], [42.47, -69.97], [43.0, -69.75], [43.25, -69.85], [43.32, -69.82], [43.47, -69.47], [44.0, -69.25], [44.25, -69.35], [44.5, -69.25], [44.75, -69.35], [44.82, -69.32], [44.97, -68.97], [45.5, -68.75], [46.03, -68.97], [46.18, -69.32], [46.25, -69.35], [46.5, -69.25], [47.03, -69.47], [47.18, -69.82], [47.25, -69.85], [47.5, -69.75], [48.03, -69.97], [48.18, -70.32], [48.25, -70.35], [48.5, -70.25], [49.03, -70.47], [49.25, -71.0], [49.15, -71.25], [49.25, -71.5], [49.03, -72.03], [48.68, -72.18], [48.53, -72.53], [48.0, -72.75], [47.75, -72.65], [47.5, -72.75], [47.25, -72.65], [47.0, -72.75], [46.75, -72.65], [46.5, -72.75], [46.25, -72.65], [46.0, -72.75], [45.75, -72.65], [45.5, -72.75], [45.25, -72.65], [45.18, -72.68], [45.03, -73.03], [44.5, -73.25], [44.25, -73.15], [44.0, -73.25], [43.75, -73.15], [43.5, -73.25], [43.25, -73.15], [43.0, -73.25], [42.75, -73.15], [42.5, -73.25], [42.25, -73.15], [42.0, -73.25], [41.75, -73.15], [41.5, -73.25], [41.25, -73.15], [41.18, -73.18], [41.03, -73.53], [40.5, -73.75], [39.97, -73.53], [39.82, -73.18], [39.75, -73.15], [39.5, -73.25], [38.97, -73.03], [38.82, -72.68], [38.75, -72.65], [38.5, -72.75], [38.25, -72.65], [38.0, -72.75], [37.47, -72.53], [37.25, -72.0], [37.47, -71.47], [37.82, -71.32], [37.97, -70.97], [38.5, -70.75]]]]}, "2024-04-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[38.97, -70.97], [39.5, -70.75], [39.75, -70.85], [40.0, -70.75], [40.25, -70.85], [40.5, -70.75], [40.75, -70.85], [41.0, -70.75], [41.25, -70.85], [41.5, -70.75], [41.75, -70.85], [42.0, -70.75], [42.25, -70.85], [42.5, -70.75], [42.75, -70.85], [43.0, -70.75], [43.25, -70.85], [43.5, -70.75], [43.75, -70.85], [44.0, -70.75], [44.25, -70.85], [44.5, -70.75], [44.75, -70.85], [45.0, -70.75], [45.25, -70.85], [45.5, -70.75], [45.75, -70.85], [46.0, -70.75], [46.25, -70.85], [46.5, -70.75], [46.75, -70.85], [47.0, -70.75], [47.53, -70.97], [47.75, -71.5], [47.53, -72.03], [47.0, -72.25], [46.75, -72.15], [46.5, -72.25], [46.25, -72.15], [46.0, -72.25], [45.75, -72.15], [45.5, -72.25], [45.25, -72.15], [45.0, -72.25], [44.75, -72.15], [44.5, -72.25], [44.25, -72.15], [44.0, -72.25], [43.75, -72.15], [43.5, -72.25], [43.25, -72.15], [43.18, -72.18], [43.03, -72.53], [42.5, -72.75], [42.25, -72.65], [42.0, -72.75], [41.5, -72.54], [41.18, -72.68], [41.15, -72.75], [41.25, -73.0], [41.03, -73.53], [40.5, -73.75], [39.97, -73.53], [39.82, -73.18], [39.75, -73.15], [39.5, -73.25], [38.97, -73.03], [38.75, -72.5], [38.96, -72.0], [38.75, -71.5], [38.97, -70.97]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 9.798013160979849}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 8.289193910105912}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [-30.742815234277828, -31.035505391664287, -30.78812854200868, -32.88405524175269]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [-22.934445543836176, -24.74871348362896, -23.98175605020799, -28.664957255850595]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [8.336867885556295, 8.237702661045788, 8.648485395979426, 6.962102245791385]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [9.773408929849921, 9.699166883406548, 9.798013160979849, 7.690283667007833]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.5359227506378954, 1.5206235841427598, 1.6018648407185117, 1.3100772404177388]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.7087338028907413, 1.704181141716792, 1.7234043879238958, 1.3670526438379567]}}