{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:52:34.870458", "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": "2013-Jan-29_to_2013-Jan-31_282.0_39.5"}, "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": 2013010002573}, "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 29 2013"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "January 31 2013"}, "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": 159196.49280782673}, "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": ["United States"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["E.North-America"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["North 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": ["North Atlantic 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": 39.5}, "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": 282.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "282.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 281.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 285.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 35.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 43.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2013-01-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-79.25, 36.5], [-79.03, 37.03], [-78.68, 37.18], [-78.65, 37.25], [-78.75, 37.5], [-78.65, 37.75], [-78.75, 38.0], [-78.65, 38.25], [-78.75, 38.5], [-78.65, 38.75], [-78.75, 39.0], [-78.65, 39.25], [-78.75, 39.5], [-78.53, 40.03], [-78.18, 40.18], [-78.15, 40.25], [-78.25, 40.5], [-78.04, 41.0], [-78.25, 41.5], [-78.15, 41.75], [-78.25, 42.0], [-78.15, 42.25], [-78.25, 42.5], [-78.15, 42.75], [-78.25, 43.0], [-78.03, 43.53], [-77.5, 43.75], [-76.97, 43.53], [-76.82, 43.18], [-76.75, 43.15], [-76.68, 43.18], [-76.53, 43.53], [-76.0, 43.75], [-75.75, 43.65], [-75.5, 43.75], [-74.97, 43.53], [-74.82, 43.18], [-74.47, 43.03], [-74.32, 42.68], [-73.97, 42.53], [-73.75, 42.0], [-73.97, 41.47], [-74.32, 41.32], [-74.47, 40.97], [-74.82, 40.82], [-74.85, 40.75], [-74.75, 40.5], [-74.85, 40.25], [-74.75, 40.0], [-74.97, 39.47], [-75.32, 39.32], [-75.47, 38.97], [-75.87, 38.8], [-75.75, 38.5], [-75.85, 38.25], [-75.75, 38.0], [-75.85, 37.75], [-75.75, 37.5], [-75.85, 37.25], [-75.75, 37.0], [-75.85, 36.75], [-75.75, 36.5], [-75.97, 35.97], [-76.32, 35.82], [-76.47, 35.47], [-77.0, 35.25], [-77.25, 35.35], [-77.5, 35.25], [-77.75, 35.35], [-78.0, 35.25], [-78.53, 35.47], [-78.68, 35.82], [-79.03, 35.97], [-79.25, 36.5]]]]}, "2013-01-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-79.25, 36.5], [-79.03, 37.03], [-78.68, 37.18], [-78.65, 37.25], [-78.75, 37.5], [-78.65, 37.75], [-78.75, 38.0], [-78.65, 38.25], [-78.75, 38.5], [-78.65, 38.75], [-78.75, 39.0], [-78.65, 39.25], [-78.75, 39.5], [-78.53, 40.03], [-78.18, 40.18], [-78.15, 40.25], [-78.25, 40.5], [-78.04, 41.0], [-78.25, 41.5], [-78.15, 41.75], [-78.25, 42.0], [-78.15, 42.25], [-78.25, 42.5], [-78.15, 42.75], [-78.25, 43.0], [-78.03, 43.53], [-77.5, 43.75], [-76.97, 43.53], [-76.82, 43.18], [-76.75, 43.15], [-76.68, 43.18], [-76.53, 43.53], [-76.0, 43.75], [-75.75, 43.65], [-75.5, 43.75], [-74.97, 43.53], [-74.82, 43.18], [-74.47, 43.03], [-74.32, 42.68], [-73.97, 42.53], [-73.75, 42.0], [-73.97, 41.47], [-74.32, 41.32], [-74.47, 40.97], [-74.82, 40.82], [-74.85, 40.75], [-74.75, 40.5], [-74.85, 40.25], [-74.75, 40.0], [-74.97, 39.47], [-75.32, 39.32], [-75.47, 38.97], [-75.87, 38.8], [-75.75, 38.5], [-75.85, 38.25], [-75.75, 38.0], [-75.85, 37.75], [-75.75, 37.5], [-75.85, 37.25], [-75.75, 37.0], [-75.85, 36.75], [-75.75, 36.5], [-75.97, 35.97], [-76.32, 35.82], [-76.47, 35.47], [-77.0, 35.25], [-77.25, 35.35], [-77.5, 35.25], [-77.75, 35.35], [-78.0, 35.25], [-78.53, 35.47], [-78.68, 35.82], [-79.03, 35.97], [-79.25, 36.5]]]]}, "2013-01-31T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-79.25, 36.5], [-79.03, 37.03], [-78.68, 37.18], [-78.65, 37.25], [-78.75, 37.5], [-78.65, 37.75], [-78.75, 38.0], [-78.65, 38.25], [-78.75, 38.5], [-78.65, 38.75], [-78.75, 39.0], [-78.65, 39.25], [-78.75, 39.5], [-78.53, 40.03], [-78.18, 40.18], [-78.15, 40.25], [-78.25, 40.5], [-78.04, 41.0], [-78.25, 41.5], [-78.15, 41.75], [-78.25, 42.0], [-78.15, 42.25], [-78.25, 42.5], [-78.15, 42.75], [-78.25, 43.0], [-78.03, 43.53], 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"description": "Mean t2m anomaly over entire duration", "value": 9.74490632849877}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [7.520740350181654, 12.871550739459337, 8.257161664452155]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [13.503610224524948, 19.35415366662454, 14.480720940057495]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [7.953050491047567, 13.024428457826213, 8.257240036622514]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [11.664699662546582, 16.534708590014134, 10.988597158040932]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.566621941362104, 2.5205956704418826, 1.5956537896202003]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.477475701163127, 2.9707978662074126, 1.9669277938584049]}}