{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:46:36.274403", "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": "2011-Jan-06_to_2011-Jan-08_41.5_-76.5"}, "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": 2011010001848}, "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": "January 06 2011"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "January 08 2011"}, "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": 133607.84917520356}, "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": -76.5}, "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": 41.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "41.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 38.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 49.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -78.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -72.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2011-01-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[37.97, -74.97], [38.32, -74.82], [38.35, -74.75], [38.25, -74.5], [38.35, -74.25], [38.25, -74.0], [38.35, -73.75], [38.25, -73.5], [38.47, -72.97], [39.0, -72.75], [39.25, -72.85], [39.5, -72.75], [39.75, -72.85], [40.0, -72.75], [40.25, -72.85], [40.5, -72.75], [40.75, -72.85], [40.82, -72.82], [40.97, -72.47], [41.5, -72.25], [41.75, -72.35], [42.0, -72.25], [42.25, -72.35], [42.5, -72.25], [42.75, -72.35], [43.0, -72.25], [43.25, -72.35], [43.5, -72.25], [43.75, -72.35], [44.0, -72.25], [44.25, -72.35], [44.5, -72.25], [44.75, -72.35], [45.0, -72.25], [45.53, -72.47], [45.68, -72.82], [45.75, -72.85], [46.0, -72.75], [46.25, -72.85], [46.5, -72.75], [46.75, -72.85], [47.0, -72.75], [47.25, -72.85], [47.5, -72.75], [48.03, -72.97], [48.18, -73.32], [48.25, -73.35], [48.5, -73.25], [48.75, -73.35], [49.0, -73.25], [49.53, -73.47], [49.68, -73.82], [50.03, -73.97], [50.25, -74.5], [50.15, -74.75], [50.25, -75.0], [50.03, -75.53], [49.5, -75.75], [49.25, -75.65], [49.18, -75.68], [49.03, -76.03], [48.5, -76.25], [48.25, -76.15], [48.18, -76.18], [48.03, -76.53], [47.68, -76.68], [47.65, -76.75], [47.75, -77.0], [47.53, -77.53], [47.18, -77.68], [47.15, -77.75], [47.25, -78.0], [47.03, -78.53], [46.5, -78.75], [46.25, -78.65], [46.0, -78.75], [45.75, -78.65], [45.5, -78.75], [45.25, -78.65], [45.0, -78.75], [44.47, -78.53], [44.32, -78.18], [44.25, -78.15], [44.0, -78.25], [43.75, -78.15], [43.5, -78.25], [42.97, -78.03], [42.82, -77.68], [42.75, -77.65], [42.5, -77.75], [42.25, -77.65], [42.0, -77.75], [41.47, -77.53], [41.32, -77.18], [41.25, -77.15], [41.0, -77.25], [40.75, -77.15], [40.5, -77.25], [40.25, -77.15], [40.0, -77.25], [39.75, -77.15], [39.5, -77.25], [38.97, -77.03], [38.82, -76.68], [38.75, -76.65], [38.5, -76.75], [37.97, -76.53], [37.75, -76.0], [37.85, -75.75], [37.75, -75.5], [37.97, -74.97]]]]}, "2011-01-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[37.97, -74.97], [38.32, -74.82], [38.35, -74.75], [38.25, -74.5], [38.35, -74.25], [38.25, -74.0], [38.35, -73.75], [38.25, -73.5], [38.47, -72.97], [39.0, -72.75], [39.25, -72.85], [39.5, -72.75], [39.75, -72.85], [40.0, -72.75], [40.25, -72.85], [40.5, -72.75], [40.75, -72.85], [40.82, -72.82], [40.97, -72.47], [41.5, -72.25], [41.75, -72.35], [42.0, -72.25], [42.25, -72.35], [42.5, -72.25], [42.75, -72.35], [43.0, -72.25], [43.25, -72.35], [43.5, -72.25], [43.75, -72.35], [44.0, -72.25], [44.25, -72.35], [44.5, -72.25], [44.75, -72.35], [45.0, -72.25], [45.53, -72.47], [45.68, -72.82], [45.75, -72.85], [46.0, -72.75], [46.25, -72.85], [46.5, -72.75], [46.75, -72.85], [47.0, -72.75], [47.25, -72.85], [47.5, -72.75], [48.03, -72.97], [48.18, -73.32], [48.25, -73.35], [48.5, -73.25], [48.75, -73.35], [49.0, -73.25], [49.53, -73.47], [49.68, -73.82], [50.03, -73.97], [50.25, -74.5], [50.15, -74.75], [50.25, -75.0], [50.03, -75.53], [49.5, -75.75], [49.25, -75.65], [49.18, -75.68], [49.03, -76.03], [48.5, -76.25], [48.25, -76.15], [48.18, -76.18], [48.03, -76.53], [47.68, -76.68], [47.65, -76.75], [47.75, -77.0], [47.53, -77.53], [47.18, -77.68], [47.15, -77.75], [47.25, -78.0], [47.03, -78.53], [46.5, -78.75], [46.25, -78.65], [46.0, -78.75], [45.75, -78.65], [45.5, -78.75], [45.25, -78.65], [45.0, -78.75], [44.47, -78.53], [44.32, -78.18], [44.25, -78.15], [44.0, -78.25], [43.75, -78.15], [43.5, -78.25], [42.97, -78.03], [42.82, -77.68], [42.75, -77.65], [42.5, -77.75], [42.25, -77.65], [42.0, -77.75], [41.47, -77.53], [41.32, -77.18], [41.25, -77.15], [41.0, -77.25], [40.75, -77.15], [40.5, -77.25], [40.25, -77.15], [40.0, -77.25], [39.75, -77.15], [39.5, -77.25], [38.97, -77.03], [38.82, -76.68], [38.75, -76.65], [38.5, -76.75], [37.97, -76.53], [37.75, -76.0], [37.85, -75.75], [37.75, -75.5], [37.97, -74.97]]]]}, "2011-01-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[37.97, -74.97], [38.32, -74.82], [38.35, -74.75], [38.25, -74.5], [38.35, -74.25], [38.25, -74.0], [38.35, -73.75], [38.25, -73.5], [38.47, -72.97], [39.0, -72.75], [39.25, -72.85], [39.5, -72.75], [39.75, -72.85], [40.0, -72.75], [40.25, -72.85], [40.5, -72.75], [40.75, -72.85], [40.82, -72.82], [40.97, -72.47], [41.5, -72.25], [41.75, -72.35], [42.0, -72.25], [42.25, -72.35], [42.5, -72.25], [42.75, -72.35], [43.0, -72.25], [43.25, -72.35], [43.5, -72.25], [43.75, -72.35], [44.0, -72.25], [44.25, -72.35], [44.5, -72.25], [44.75, -72.35], [45.0, -72.25], [45.53, -72.47], [45.68, -72.82], [45.75, -72.85], [46.0, -72.75], [46.25, -72.85], [46.5, -72.75], [46.75, -72.85], [47.0, -72.75], [47.25, -72.85], [47.5, -72.75], [48.03, -72.97], [48.18, -73.32], [48.25, -73.35], [48.5, -73.25], [48.75, -73.35], [49.0, -73.25], [49.53, -73.47], [49.68, -73.82], [50.03, -73.97], [50.25, -74.5], [50.15, -74.75], [50.25, -75.0], [50.03, -75.53], [49.5, -75.75], [49.25, -75.65], [49.18, -75.68], [49.03, -76.03], [48.5, -76.25], [48.25, -76.15], [48.18, -76.18], [48.03, -76.53], [47.68, -76.68], [47.65, -76.75], [47.75, -77.0], [47.53, -77.53], [47.18, -77.68], [47.15, -77.75], [47.25, -78.0], [47.03, -78.53], [46.5, -78.75], [46.25, -78.65], [46.0, -78.75], [45.75, -78.65], [45.5, -78.75], [45.25, -78.65], [45.0, -78.75], [44.47, -78.53], [44.32, -78.18], [44.25, -78.15], [44.0, -78.25], [43.75, -78.15], [43.5, -78.25], [42.97, -78.03], [42.82, -77.68], [42.75, -77.65], [42.5, -77.75], [42.25, -77.65], [42.0, -77.75], [41.47, -77.53], [41.32, -77.18], [41.25, -77.15], [41.0, -77.25], [40.75, -77.15], [40.5, -77.25], [40.25, -77.15], [40.0, -77.25], [39.75, -77.15], [39.5, -77.25], [38.97, -77.03], [38.82, -76.68], [38.75, -76.65], [38.5, -76.75], [37.97, -76.53], [37.75, -76.0], [37.85, -75.75], [37.75, -75.5], [37.97, -74.97]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 6.104171787727466}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 4.687872126236486}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [-26.169136157776563, -24.745312472213982, -25.433606596263957]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [-21.4517001266494, -20.225414204687326, -21.926198476629764]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [3.8657440302858035, 5.384835756188122, 4.813036592235532]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [4.317896036787374, 6.104171787727466, 5.922026820683328]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4726742874815486, 1.9636103914216547, 1.6990493292430635]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.6802126636967245, 2.1241198697790082, 2.1216301780462112]}}