{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:50:29.491964", "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-May-14_to_2012-May-16_290.0_51.0"}, "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": 2012050002394}, "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": "May 14 2012"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "May 16 2012"}, "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": 75774.00015816576}, "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": ["Canada"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["E.North-America", "N.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": []}, "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": 51.0}, "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": 290.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "290.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 285.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 291.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 48.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 52.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2012-05-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-73.68, 52.68], [-73.53, 53.03], [-73.0, 53.25], [-72.75, 53.15], [-72.5, 53.25], [-72.25, 53.15], [-72.0, 53.25], [-71.47, 53.03], [-71.32, 52.68], [-70.97, 52.53], [-70.82, 52.18], [-70.5, 52.04], [-70.0, 52.25], [-69.75, 52.15], [-69.5, 52.25], [-68.97, 52.03], [-68.75, 51.5], [-68.85, 51.25], [-68.82, 51.18], [-68.47, 51.03], [-68.25, 50.5], [-68.47, 49.97], [-69.0, 49.75], [-69.25, 49.85], [-69.5, 49.75], [-69.75, 49.85], [-69.82, 49.82], [-69.97, 49.47], [-70.5, 49.25], [-70.75, 49.35], [-71.0, 49.25], [-71.25, 49.35], [-71.5, 49.25], [-71.75, 49.35], [-71.82, 49.32], [-71.97, 48.97], [-72.32, 48.82], [-72.47, 48.47], [-73.0, 48.25], [-73.53, 48.47], [-73.75, 49.0], [-73.53, 49.53], [-73.18, 49.68], [-73.15, 49.75], [-73.25, 50.0], [-73.15, 50.25], [-73.18, 50.32], [-73.53, 50.47], [-73.68, 50.82], [-73.75, 50.85], [-74.0, 50.75], [-74.53, 50.97], [-74.75, 51.5], [-74.53, 52.03], [-74.18, 52.18], [-74.03, 52.53], [-73.68, 52.68]]]]}, "2012-05-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-73.68, 52.68], [-73.53, 53.03], [-73.0, 53.25], [-72.75, 53.15], [-72.5, 53.25], [-72.25, 53.15], [-72.0, 53.25], [-71.47, 53.03], [-71.32, 52.68], [-70.97, 52.53], [-70.82, 52.18], [-70.5, 52.04], [-70.0, 52.25], [-69.75, 52.15], [-69.5, 52.25], [-68.97, 52.03], [-68.75, 51.5], [-68.85, 51.25], [-68.82, 51.18], [-68.47, 51.03], [-68.25, 50.5], [-68.47, 49.97], [-69.0, 49.75], [-69.25, 49.85], [-69.5, 49.75], [-69.75, 49.85], [-69.82, 49.82], [-69.97, 49.47], [-70.5, 49.25], [-70.75, 49.35], [-71.0, 49.25], [-71.25, 49.35], [-71.5, 49.25], [-71.75, 49.35], [-71.82, 49.32], [-71.97, 48.97], [-72.32, 48.82], [-72.47, 48.47], [-73.0, 48.25], [-73.53, 48.47], [-73.75, 49.0], [-73.53, 49.53], [-73.18, 49.68], [-73.15, 49.75], [-73.25, 50.0], [-73.15, 50.25], [-73.18, 50.32], [-73.53, 50.47], [-73.68, 50.82], [-73.75, 50.85], [-74.0, 50.75], [-74.53, 50.97], [-74.75, 51.5], [-74.53, 52.03], [-74.18, 52.18], [-74.03, 52.53], [-73.68, 52.68]]]]}, "2012-05-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-73.68, 52.68], [-73.53, 53.03], [-73.0, 53.25], [-72.75, 53.15], [-72.5, 53.25], [-72.25, 53.15], [-72.0, 53.25], [-71.47, 53.03], [-71.32, 52.68], [-70.97, 52.53], [-70.82, 52.18], [-70.5, 52.04], [-70.0, 52.25], [-69.75, 52.15], [-69.5, 52.25], [-68.97, 52.03], [-68.75, 51.5], [-68.85, 51.25], [-68.82, 51.18], [-68.47, 51.03], [-68.25, 50.5], [-68.47, 49.97], [-69.0, 49.75], [-69.25, 49.85], [-69.5, 49.75], [-69.75, 49.85], [-69.82, 49.82], [-69.97, 49.47], [-70.5, 49.25], [-70.75, 49.35], [-71.0, 49.25], [-71.25, 49.35], [-71.5, 49.25], [-71.75, 49.35], [-71.82, 49.32], [-71.97, 48.97], [-72.32, 48.82], [-72.47, 48.47], [-73.0, 48.25], [-73.53, 48.47], [-73.75, 49.0], [-73.53, 49.53], [-73.18, 49.68], [-73.15, 49.75], [-73.25, 50.0], [-73.15, 50.25], [-73.18, 50.32], [-73.53, 50.47], [-73.68, 50.82], [-73.75, 50.85], [-74.0, 50.75], [-74.53, 50.97], [-74.75, 51.5], [-74.53, 52.03], [-74.18, 52.18], [-74.03, 52.53], [-73.68, 52.68]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 9.990731310510455}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 7.71782173245286}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [12.192389910109398, 14.008864769806621, 13.818375438540556]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [14.977993375941082, 18.521814114880897, 16.232438930229534]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [6.98577426902764, 8.33067861997251, 7.837012308358433]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [9.37873167375352, 9.610106886502422, 9.990731310510455]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.6209105314022234, 1.9515708266939278, 1.8740490975979491]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.0360725768253514, 2.1835347376765286, 2.4357782193392348]}}