{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:51:18.560267", "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": "2012-Aug-25_to_2012-Aug-29_51.0_-85.0"}, "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": 2012080002784}, "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 25 2012"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 29 2012"}, "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": 50594.9331892063}, "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": -85.0}, "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": 51.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "51.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 38.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 62.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -85.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -82.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2012-08-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[46.47, -83.03], [46.25, -82.5], [46.47, -81.97], [47.0, -81.75], [47.25, -81.85], [47.5, -81.75], [47.75, -81.85], [48.0, -81.75], [48.5, -81.96], [49.0, -81.75], [49.25, -81.85], [49.5, -81.75], [49.75, -81.85], [50.0, -81.75], [50.25, -81.85], [50.5, -81.75], [50.75, -81.85], [51.0, -81.75], [51.25, -81.85], [51.5, -81.75], [51.75, -81.85], [52.0, -81.75], [52.53, -81.97], [52.75, -82.5], [52.53, -83.03], [52.18, -83.18], [52.03, -83.53], [51.5, -83.75], [51.25, -83.65], [51.0, -83.75], [50.75, -83.65], [50.5, -83.75], [50.25, -83.65], [50.0, -83.75], [49.75, -83.65], [49.5, -83.75], [49.25, -83.65], [49.0, -83.75], [48.75, -83.65], [48.5, -83.75], [48.25, -83.65], [48.0, -83.75], [47.47, -83.53], [47.32, -83.18], [47.25, -83.15], [47.0, -83.25], [46.47, -83.03]]]]}, "2012-08-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[38.47, -84.53], [38.25, -84.0], [38.47, -83.47], [39.0, -83.25], [39.25, -83.35], [39.32, -83.32], [39.47, -82.97], [40.0, -82.75], [40.25, -82.85], [40.32, -82.82], [40.47, -82.47], [41.0, -82.25], [41.25, -82.35], [41.5, -82.25], [41.75, -82.35], [42.0, -82.25], [42.25, -82.35], [42.5, -82.25], [42.75, -82.35], [43.0, -82.25], [43.53, -82.47], [43.68, -82.82], [43.75, -82.85], [44.0, -82.75], [44.25, -82.85], [44.5, -82.75], [44.75, -82.85], [45.0, -82.75], [45.25, -82.85], [45.5, -82.75], [45.75, -82.85], [46.0, -82.75], [46.25, -82.85], [46.38, -82.8], [46.25, -82.5], [46.47, -81.97], [47.0, -81.75], [47.25, -81.85], [47.5, -81.75], [47.75, -81.85], [48.0, -81.75], [48.5, -81.96], [49.0, -81.75], [49.25, -81.85], [49.5, -81.75], [49.75, -81.85], [50.0, -81.75], [50.25, -81.85], [50.5, -81.75], [50.75, -81.85], [51.0, -81.75], [51.25, -81.85], [51.5, -81.75], [51.75, -81.85], [52.0, -81.75], [52.53, -81.97], [52.75, -82.5], [52.53, -83.03], [52.18, -83.18], [52.13, -83.3], [52.25, -83.35], [52.5, -83.25], [52.75, -83.35], [53.0, -83.25], [53.25, -83.35], [53.5, -83.25], [53.75, -83.35], [54.0, -83.25], [54.25, -83.35], [54.5, -83.25], [55.0, -83.46], [55.5, -83.25], [55.75, -83.35], [56.0, -83.25], [56.25, -83.35], [56.5, -83.25], [56.75, -83.35], [57.0, -83.25], [57.25, -83.35], [57.5, -83.25], [57.75, -83.35], [58.0, -83.25], [58.53, -83.47], [58.68, -83.82], [58.75, -83.85], [59.0, -83.75], [59.25, -83.85], [59.5, -83.75], [59.75, -83.85], [60.0, -83.75], [60.53, -83.97], [60.68, -84.32], [60.75, -84.35], [61.0, -84.25], [61.25, -84.35], [61.5, -84.25], [61.75, -84.35], [62.0, -84.25], [62.25, -84.35], [62.5, -84.25], [63.03, -84.47], [63.25, -85.0], [63.03, -85.53], [62.5, -85.75], [62.25, -85.65], [62.0, -85.75], [61.75, -85.65], [61.5, -85.75], [61.25, -85.65], [61.0, -85.75], [60.75, -85.65], [60.5, -85.75], [60.25, -85.65], [60.0, -85.75], [59.75, -85.65], [59.5, -85.75], [59.25, -85.65], [59.0, -85.75], [58.5, -85.54], [58.0, -85.75], [57.75, -85.65], [57.5, -85.75], [57.25, -85.65], [57.0, -85.75], [56.47, -85.53], [56.32, -85.18], [56.25, -85.15], [56.0, -85.25], [55.75, -85.15], [55.68, -85.18], [55.65, -85.25], [55.75, -85.5], [55.53, -86.03], [55.0, -86.25], [54.75, -86.15], [54.5, -86.25], [54.25, -86.15], [54.0, -86.25], [53.75, -86.15], [53.5, -86.25], [53.25, -86.15], [53.0, -86.25], [52.75, -86.15], [52.5, -86.25], [52.25, -86.15], [52.0, -86.25], [51.75, -86.15], [51.5, -86.25], [51.25, -86.15], [51.0, -86.25], [50.75, -86.15], [50.5, -86.25], [50.25, -86.15], [50.0, -86.25], [49.75, -86.15], [49.5, -86.25], [49.25, -86.15], [49.0, -86.25], [48.75, -86.15], [48.5, -86.25], [48.25, -86.15], [48.0, -86.25], [47.75, -86.15], [47.5, -86.25], [46.97, -86.03], [46.82, -85.68], [46.75, -85.65], [46.5, -85.75], [46.25, -85.65], [46.0, -85.75], [45.75, -85.65], [45.5, -85.75], [44.97, -85.53], [44.82, -85.18], [44.75, -85.15], [44.5, -85.25], [44.25, -85.15], [44.0, -85.25], [43.75, -85.15], [43.5, -85.25], [43.25, -85.15], [43.0, -85.25], [42.75, -85.15], [42.5, -85.25], [42.25, -85.15], [42.0, -85.25], [41.75, -85.15], [41.5, -85.25], [41.25, -85.15], [41.0, -85.25], [40.47, -85.03], [40.32, -84.68], [40.25, -84.65], [40.0, -84.75], [39.75, -84.65], [39.5, -84.75], [39.25, -84.65], [39.0, -84.75], [38.47, -84.53]]]]}, "2012-08-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[38.47, -84.53], [38.25, -84.0], [38.47, -83.47], [39.0, -83.25], [39.25, -83.35], [39.32, -83.32], [39.47, -82.97], [40.0, -82.75], [40.25, -82.85], [40.32, -82.82], [40.47, -82.47], [41.0, -82.25], [41.25, -82.35], [41.5, -82.25], [41.75, -82.35], [42.0, -82.25], [42.25, -82.35], [42.5, -82.25], [42.75, -82.35], [43.0, -82.25], [43.53, -82.47], [43.68, -82.82], [43.75, -82.85], [44.0, -82.75], [44.25, -82.85], [44.5, -82.75], [44.75, -82.85], [45.0, -82.75], [45.25, -82.85], [45.5, -82.75], [45.75, -82.85], [46.0, -82.75], [46.25, -82.85], [46.38, -82.8], [46.25, -82.5], [46.47, -81.97], [47.0, -81.75], [47.25, -81.85], [47.5, -81.75], [47.75, -81.85], [48.0, -81.75], [48.5, -81.96], [49.0, -81.75], [49.25, -81.85], [49.5, -81.75], [49.75, -81.85], [50.0, -81.75], [50.25, -81.85], [50.5, -81.75], [50.75, -81.85], [51.0, -81.75], [51.25, -81.85], [51.5, -81.75], [51.75, -81.85], [52.0, -81.75], [52.53, -81.97], [52.75, -82.5], [52.53, -83.03], [52.18, -83.18], [52.13, -83.3], [52.25, -83.35], [52.5, -83.25], [52.75, -83.35], [53.0, -83.25], [53.25, -83.35], [53.5, -83.25], [53.75, -83.35], [54.0, -83.25], [54.25, -83.35], [54.5, -83.25], [55.0, -83.46], [55.5, -83.25], [55.75, -83.35], [56.0, -83.25], [56.25, -83.35], [56.5, -83.25], [56.75, -83.35], [57.0, -83.25], [57.25, -83.35], [57.5, -83.25], [57.75, -83.35], [58.0, -83.25], [58.53, -83.47], [58.68, -83.82], [58.75, -83.85], [59.0, -83.75], [59.25, -83.85], [59.5, -83.75], [59.75, -83.85], [60.0, -83.75], [60.53, -83.97], [60.68, -84.32], [60.75, -84.35], [61.0, -84.25], [61.25, -84.35], [61.5, -84.25], [61.75, -84.35], [62.0, -84.25], [62.25, -84.35], [62.5, -84.25], [63.03, -84.47], [63.25, -85.0], [63.03, -85.53], [62.5, -85.75], [62.25, -85.65], [62.0, -85.75], [61.75, -85.65], [61.5, -85.75], [61.25, -85.65], [61.0, -85.75], [60.75, -85.65], [60.5, -85.75], [60.25, -85.65], [60.0, -85.75], [59.75, -85.65], [59.5, -85.75], [59.25, -85.65], [59.0, -85.75], [58.5, -85.54], [58.0, -85.75], [57.75, -85.65], [57.5, -85.75], [57.25, -85.65], [57.0, -85.75], [56.47, -85.53], [56.32, -85.18], [56.25, -85.15], [56.0, -85.25], [55.75, -85.15], [55.68, -85.18], [55.65, -85.25], [55.75, -85.5], [55.53, -86.03], [55.0, -86.25], [54.75, -86.15], [54.5, -86.25], [54.25, -86.15], [54.0, -86.25], [53.75, -86.15], [53.5, -86.25], [53.25, -86.15], [53.0, -86.25], [52.75, -86.15], [52.5, -86.25], [52.25, -86.15], [52.0, -86.25], [51.75, -86.15], [51.5, -86.25], [51.25, -86.15], [51.0, -86.25], [50.75, -86.15], [50.5, -86.25], [50.25, -86.15], [50.0, -86.25], [49.75, -86.15], [49.5, -86.25], [49.25, -86.15], [49.0, -86.25], [48.75, -86.15], [48.5, -86.25], [48.25, -86.15], [48.0, -86.25], [47.75, -86.15], [47.5, -86.25], [46.97, -86.03], [46.82, -85.68], [46.75, -85.65], [46.5, -85.75], [46.25, -85.65], [46.0, -85.75], [45.75, -85.65], [45.5, -85.75], [44.97, -85.53], [44.82, -85.18], [44.75, -85.15], [44.5, -85.25], [44.25, -85.15], [44.0, -85.25], [43.75, -85.15], [43.5, -85.25], [43.25, -85.15], [43.0, -85.25], [42.75, -85.15], [42.5, -85.25], [42.25, -85.15], [42.0, -85.25], [41.75, -85.15], [41.5, -85.25], [41.25, -85.15], [41.0, -85.25], [40.47, -85.03], [40.32, -84.68], [40.25, -84.65], [40.0, -84.75], [39.75, -84.65], [39.5, -84.75], [39.25, -84.65], [39.0, -84.75], [38.47, -84.53]]]]}, "2012-08-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[38.47, -84.53], [38.25, -84.0], [38.47, -83.47], [39.0, -83.25], [39.25, -83.35], [39.32, -83.32], [39.47, -82.97], [40.0, -82.75], [40.25, -82.85], [40.32, -82.82], [40.47, -82.47], [41.0, -82.25], [41.25, -82.35], [41.5, -82.25], [41.75, -82.35], [42.0, -82.25], [42.25, -82.35], [42.5, -82.25], [42.75, -82.35], [43.0, -82.25], [43.53, -82.47], [43.68, -82.82], [43.75, -82.85], [44.0, -82.75], [44.25, -82.85], [44.5, -82.75], [44.75, -82.85], [45.0, -82.75], [45.25, -82.85], [45.5, -82.75], [45.75, -82.85], [46.0, -82.75], [46.25, -82.85], [46.5, -82.75], [46.75, -82.85], [47.0, -82.75], [47.25, -82.85], [47.5, -82.75], [48.03, -82.97], [48.18, -83.32], [48.25, -83.35], [48.5, -83.25], [48.75, -83.35], [49.0, -83.25], [49.25, -83.35], [49.5, -83.25], [49.75, -83.35], [50.0, -83.25], [50.25, -83.35], [50.5, -83.25], [50.75, -83.35], [51.0, -83.25], [51.25, -83.35], [51.5, -83.25], [51.75, -83.35], [52.0, -83.25], [52.25, -83.35], [52.5, -83.25], [52.75, -83.35], [53.0, -83.25], [53.25, -83.35], [53.5, -83.25], [53.75, -83.35], [54.0, -83.25], [54.25, -83.35], [54.5, -83.25], [55.0, -83.46], [55.5, -83.25], [55.75, -83.35], [56.0, -83.25], [56.25, -83.35], [56.5, -83.25], [56.75, -83.35], [57.0, -83.25], [57.25, -83.35], [57.5, -83.25], [57.75, -83.35], [58.0, -83.25], [58.53, -83.47], [58.68, -83.82], [58.75, -83.85], [59.0, -83.75], [59.25, -83.85], [59.5, -83.75], [59.75, -83.85], [60.0, -83.75], [60.53, -83.97], [60.68, -84.32], [60.75, -84.35], [61.0, -84.25], [61.25, -84.35], [61.5, -84.25], [61.75, -84.35], [62.0, -84.25], [62.25, -84.35], [62.5, -84.25], [63.03, -84.47], [63.25, -85.0], [63.03, -85.53], [62.5, -85.75], [62.25, -85.65], [62.0, -85.75], [61.75, -85.65], [61.5, -85.75], [61.25, -85.65], [61.0, -85.75], [60.75, -85.65], [60.5, -85.75], [60.25, -85.65], [60.0, -85.75], [59.75, -85.65], [59.5, -85.75], [59.25, -85.65], [59.0, -85.75], [58.5, -85.54], [58.0, -85.75], [57.75, -85.65], [57.5, -85.75], [57.25, -85.65], [57.0, -85.75], [56.47, -85.53], [56.32, -85.18], [56.25, -85.15], [56.0, -85.25], [55.75, -85.15], [55.68, -85.18], [55.65, -85.25], [55.75, -85.5], [55.53, -86.03], [55.0, -86.25], [54.75, -86.15], [54.5, -86.25], [54.25, -86.15], [54.0, -86.25], [53.75, -86.15], [53.5, -86.25], [53.25, -86.15], [53.0, -86.25], [52.75, -86.15], [52.5, -86.25], [52.25, -86.15], [52.0, -86.25], [51.75, -86.15], [51.5, -86.25], [51.25, -86.15], [51.0, -86.25], [50.75, -86.15], [50.5, -86.25], [50.25, -86.15], [50.0, -86.25], [49.75, -86.15], [49.5, -86.25], [49.25, -86.15], [49.0, -86.25], [48.75, -86.15], [48.5, -86.25], [48.25, -86.15], [48.0, -86.25], [47.75, -86.15], [47.5, -86.25], [46.97, -86.03], [46.82, -85.68], [46.75, -85.65], [46.5, -85.75], [46.25, -85.65], [46.0, -85.75], [45.75, -85.65], [45.5, -85.75], [44.97, -85.53], [44.82, -85.18], [44.75, -85.15], [44.5, -85.25], [44.25, -85.15], [44.0, -85.25], [43.75, -85.15], [43.5, -85.25], [43.25, -85.15], [43.0, -85.25], [42.75, -85.15], [42.5, -85.25], [42.25, -85.15], [42.0, -85.25], [41.75, -85.15], [41.5, -85.25], [41.25, -85.15], [41.0, -85.25], [40.47, -85.03], [40.32, -84.68], [40.25, -84.65], [40.0, -84.75], [39.75, -84.65], [39.5, -84.75], [39.25, -84.65], [39.0, -84.75], [38.47, -84.53]]]]}, "2012-08-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[44.75, -85.0], [44.97, -84.47], [45.5, -84.25], [45.75, -84.35], [46.0, -84.25], [46.25, -84.35], [46.5, -84.25], [46.75, -84.35], [47.0, -84.25], [47.25, -84.35], [47.5, -84.25], [47.75, -84.35], [48.0, -84.25], [48.25, -84.35], [48.5, -84.25], [48.75, -84.35], [49.0, -84.25], [49.25, -84.35], [49.5, -84.25], [49.75, -84.35], [50.0, -84.25], [50.25, -84.35], [50.5, -84.25], [50.75, -84.35], [51.0, -84.25], [51.25, -84.35], [51.5, -84.25], [51.75, -84.35], [52.0, -84.25], [52.25, -84.35], [52.5, -84.25], [52.75, -84.35], [53.0, -84.25], [53.25, -84.35], [53.5, -84.25], [53.75, -84.35], [54.0, -84.25], [54.25, -84.35], [54.5, -84.25], [54.75, -84.35], [55.0, -84.25], [55.53, -84.47], [55.75, -85.0], [55.65, -85.25], [55.75, -85.5], [55.53, -86.03], [55.0, -86.25], [54.47, -86.03], [54.32, -85.68], [54.25, -85.65], [54.0, -85.75], [53.75, -85.65], [53.5, -85.75], [53.25, -85.65], [53.0, -85.75], [52.75, -85.65], [52.5, -85.75], [52.25, -85.65], [52.18, -85.68], [52.03, -86.03], [51.5, -86.25], [51.25, -86.15], [51.0, -86.25], [50.75, -86.15], [50.5, -86.25], [50.25, -86.15], [50.0, -86.25], [49.75, -86.15], [49.5, -86.25], [49.25, -86.15], [49.0, -86.25], [48.47, -86.03], [48.32, -85.68], [48.25, -85.65], [48.0, -85.75], [47.75, -85.65], [47.5, -85.75], [47.25, -85.65], [47.0, -85.75], [46.75, -85.65], [46.5, -85.75], [46.25, -85.65], [46.0, -85.75], [45.75, -85.65], [45.5, -85.75], [44.97, -85.53], [44.75, -85.0]]], [[[56.25, -85.0], [56.47, -84.47], [57.0, -84.25], [57.25, -84.35], [57.5, -84.25], [58.03, -84.47], [58.25, -85.0], [58.03, -85.53], [57.5, -85.75], [57.25, -85.65], [57.0, -85.75], [56.47, -85.53], [56.25, -85.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 11.140819043365667}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 8.560426530676017}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [-53.386008382987, -49.3944387144453, -51.53379843340241, -50.80899809585344, -51.7759234987694]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [-52.815248311457964, -47.15277785028968, -48.537467477198334, -48.59627862166312, -50.54605575581195]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [6.949188478573483, 9.888699058928887, 7.796249098599883, 8.366499083117823, 7.3595390878130456]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [7.211224961387217, 11.140819043365667, 8.757608831644205, 9.578190585963569, 7.606628442374898]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.338156981446637, 1.801927412128149, 1.4057518541519811, 1.5128566801715033, 1.3660716884281823]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.3592628560304285, 2.0158840192766108, 1.5598663000882294, 1.6991170932564905, 1.3952345704401783]}}