{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:47:31.211573", "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-May-10_to_2011-May-12_277.0_51.5"}, "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": 2011050001988}, "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 10 2011"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "May 12 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": 58081.02437392519}, "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": ["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": 51.5}, "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": 277.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "277.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 273.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 278.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 49.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 52.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2011-05-10T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-86.53, 52.53], [-86.0, 52.75], [-85.75, 52.65], [-85.5, 52.75], [-85.25, 52.65], [-85.0, 52.75], [-84.75, 52.65], [-84.5, 52.75], [-84.25, 52.65], [-84.0, 52.75], [-83.75, 52.65], [-83.5, 52.75], [-83.25, 52.65], [-83.0, 52.75], [-82.75, 52.65], [-82.5, 52.75], [-82.25, 52.65], [-82.0, 52.75], [-81.47, 52.53], [-81.25, 52.0], [-81.47, 51.47], [-81.82, 51.32], [-81.97, 50.97], [-82.37, 50.8], [-82.25, 50.5], [-82.35, 50.25], [-82.25, 50.0], [-82.47, 49.47], [-83.0, 49.25], [-83.25, 49.35], [-83.5, 49.25], [-83.75, 49.35], [-84.0, 49.25], [-84.25, 49.35], [-84.5, 49.25], [-85.03, 49.47], [-85.18, 49.82], [-85.53, 49.97], [-85.75, 50.5], [-85.65, 50.75], [-85.68, 50.82], [-85.75, 50.85], [-86.0, 50.75], [-86.53, 50.97], [-86.75, 51.5], [-86.65, 51.75], [-86.75, 52.0], [-86.53, 52.53]]]]}, "2011-05-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-86.53, 52.53], [-86.0, 52.75], [-85.75, 52.65], [-85.5, 52.75], [-85.25, 52.65], [-85.0, 52.75], [-84.75, 52.65], [-84.5, 52.75], [-84.25, 52.65], [-84.0, 52.75], [-83.75, 52.65], [-83.5, 52.75], [-83.25, 52.65], [-83.0, 52.75], [-82.75, 52.65], [-82.5, 52.75], [-82.25, 52.65], [-82.0, 52.75], [-81.47, 52.53], [-81.25, 52.0], [-81.47, 51.47], [-81.82, 51.32], [-81.97, 50.97], [-82.37, 50.8], [-82.25, 50.5], [-82.35, 50.25], [-82.25, 50.0], [-82.47, 49.47], [-83.0, 49.25], [-83.25, 49.35], [-83.5, 49.25], [-83.75, 49.35], [-84.0, 49.25], [-84.25, 49.35], [-84.5, 49.25], [-85.03, 49.47], [-85.18, 49.82], [-85.53, 49.97], [-85.75, 50.5], [-85.65, 50.75], [-85.68, 50.82], [-85.75, 50.85], [-86.0, 50.75], [-86.53, 50.97], [-86.75, 51.5], [-86.65, 51.75], [-86.75, 52.0], [-86.53, 52.53]]]]}, "2011-05-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-86.53, 52.53], [-86.0, 52.75], [-85.75, 52.65], [-85.5, 52.75], [-85.25, 52.65], [-85.0, 52.75], [-84.75, 52.65], [-84.5, 52.75], [-84.25, 52.65], [-84.0, 52.75], [-83.75, 52.65], [-83.5, 52.75], [-83.25, 52.65], [-83.0, 52.75], [-82.75, 52.65], [-82.5, 52.75], [-82.25, 52.65], [-82.0, 52.75], [-81.47, 52.53], [-81.25, 52.0], [-81.47, 51.47], [-81.82, 51.32], [-81.97, 50.97], [-82.37, 50.8], [-82.25, 50.5], [-82.35, 50.25], [-82.25, 50.0], [-82.47, 49.47], [-83.0, 49.25], [-83.25, 49.35], [-83.5, 49.25], [-83.75, 49.35], [-84.0, 49.25], [-84.25, 49.35], [-84.5, 49.25], [-85.03, 49.47], [-85.18, 49.82], [-85.53, 49.97], [-85.75, 50.5], [-85.65, 50.75], [-85.68, 50.82], [-85.75, 50.85], [-86.0, 50.75], [-86.53, 50.97], [-86.75, 51.5], [-86.65, 51.75], [-86.75, 52.0], [-86.53, 52.53]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 9.70939577641525}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 8.49949345003902}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [15.301654518391786, 14.967165869202745, 15.308369694355633]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [16.47904245156758, 16.480007121698065, 16.46505473467556]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [8.761041487511935, 8.24084944952407, 8.49658941308106]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [9.350814241289754, 9.003972188458363, 9.70939577641525]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.6873313510306867, 1.6286235234356468, 1.6539185938674812]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.8235363159190874, 1.729319981771905, 1.8680705029360944]}}