{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:08:24.150582", "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": "2017-Jun-26_to_2017-Jul-01_280.5_69.5"}, "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": 2017060002827}, "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": "June 26 2017"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "July 01 2017"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 6}, "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": 132338.46980868393}, "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": ["The Northwestern Passages"]}, "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": 69.5}, "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": 280.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "280.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 273.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 284.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 66.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 71.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2017-06-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-77.53, 68.47], [-77.75, 69.0], [-77.53, 69.53], [-77.0, 69.75], [-76.47, 69.53], [-76.25, 69.0], [-76.47, 68.47], [-77.0, 68.25], [-77.53, 68.47]]], [[[-82.25, 70.0], [-82.03, 70.53], [-81.5, 70.75], [-81.25, 70.65], [-81.0, 70.75], [-80.75, 70.65], [-80.5, 70.75], [-80.25, 70.65], [-80.0, 70.75], [-79.47, 70.53], [-79.32, 70.18], [-78.97, 70.03], [-78.75, 69.5], [-78.97, 68.97], [-79.5, 68.75], [-80.03, 68.97], [-80.18, 69.32], [-80.25, 69.35], [-80.5, 69.25], [-80.75, 69.35], [-81.0, 69.25], [-81.25, 69.35], [-81.5, 69.25], [-82.03, 69.47], [-82.25, 70.0]]]]}, "2017-06-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-80.97, 67.53], [-80.75, 67.0], [-80.97, 66.47], [-81.5, 66.25], [-81.75, 66.35], [-82.0, 66.25], [-82.25, 66.35], [-82.32, 66.32], [-82.47, 65.97], [-83.0, 65.75], [-83.25, 65.85], [-83.5, 65.75], [-83.75, 65.85], [-84.0, 65.75], [-84.25, 65.85], [-84.5, 65.75], [-84.75, 65.85], [-85.0, 65.75], [-85.53, 65.97], [-85.75, 66.5], [-85.53, 67.03], [-85.0, 67.25], [-84.75, 67.15], [-84.5, 67.25], [-84.25, 67.15], [-84.0, 67.25], [-83.75, 67.15], [-83.5, 67.25], [-83.25, 67.15], [-83.18, 67.18], [-83.03, 67.53], [-82.5, 67.75], [-82.25, 67.65], [-82.0, 67.75], [-81.75, 67.65], [-81.5, 67.75], [-80.97, 67.53]]], [[[-85.0, 70.75], [-84.75, 70.65], [-84.5, 70.75], [-84.25, 70.65], [-84.18, 70.68], [-84.15, 70.75], [-84.25, 71.0], [-84.03, 71.53], [-83.5, 71.75], [-83.25, 71.65], [-83.0, 71.75], [-82.75, 71.65], [-82.5, 71.75], [-82.25, 71.65], [-82.0, 71.75], [-81.75, 71.65], [-81.5, 71.75], [-81.25, 71.65], [-81.0, 71.75], [-80.75, 71.65], [-80.5, 71.75], [-80.25, 71.65], [-80.0, 71.75], [-79.75, 71.65], [-79.5, 71.75], [-79.25, 71.65], [-79.0, 71.75], [-78.75, 71.65], [-78.5, 71.75], [-78.25, 71.65], [-78.18, 71.68], [-78.03, 72.03], [-77.5, 72.25], [-76.97, 72.03], [-76.75, 71.5], [-76.85, 71.25], [-76.75, 71.0], [-76.85, 70.75], [-76.82, 70.68], [-76.47, 70.53], [-76.32, 70.18], [-76.25, 70.15], [-76.0, 70.25], [-75.47, 70.03], [-75.25, 69.5], [-75.35, 69.25], [-75.25, 69.0], [-75.47, 68.47], [-76.0, 68.25], [-76.25, 68.35], [-76.5, 68.25], [-76.75, 68.35], [-77.0, 68.25], [-77.25, 68.35], [-77.5, 68.25], [-77.75, 68.35], [-77.82, 68.32], [-77.97, 67.97], [-78.5, 67.75], [-78.75, 67.85], [-79.0, 67.75], [-79.53, 67.97], [-79.75, 68.5], [-79.65, 68.75], [-79.68, 68.82], [-79.75, 68.85], [-80.0, 68.75], [-80.25, 68.85], [-80.5, 68.75], [-80.8, 68.88], [-80.85, 68.75], [-80.75, 68.5], [-80.97, 67.97], [-81.5, 67.75], [-81.75, 67.85], [-82.0, 67.75], [-82.25, 67.85], [-82.5, 67.75], [-82.75, 67.85], [-83.0, 67.75], [-83.53, 67.97], [-83.68, 68.32], [-83.75, 68.35], [-84.0, 68.25], [-84.53, 68.47], [-84.7, 68.88], [-85.0, 68.75], [-85.53, 68.97], [-85.75, 69.5], [-85.65, 69.75], [-85.75, 70.0], [-85.53, 70.53], [-85.0, 70.75]]]]}, "2017-06-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-86.0, 67.75], [-85.75, 67.65], [-85.68, 67.68], [-85.65, 67.75], [-85.75, 68.0], [-85.53, 68.53], [-85.18, 68.68], [-85.12, 68.8], [-85.53, 68.97], [-85.75, 69.5], [-85.65, 69.75], [-85.75, 70.0], [-85.53, 70.53], [-85.0, 70.75], [-84.75, 70.65], [-84.5, 70.75], [-84.25, 70.65], [-84.18, 70.68], [-84.15, 70.75], [-84.25, 71.0], [-84.03, 71.53], [-83.5, 71.75], [-83.25, 71.65], [-83.0, 71.75], [-82.75, 71.65], [-82.5, 71.75], [-82.25, 71.65], [-82.0, 71.75], [-81.75, 71.65], [-81.5, 71.75], [-81.25, 71.65], [-81.0, 71.75], [-80.75, 71.65], [-80.5, 71.75], [-80.25, 71.65], [-80.0, 71.75], [-79.75, 71.65], [-79.5, 71.75], [-79.25, 71.65], [-79.0, 71.75], [-78.75, 71.65], [-78.5, 71.75], [-78.25, 71.65], [-78.18, 71.68], [-78.03, 72.03], [-77.5, 72.25], [-76.97, 72.03], [-76.75, 71.5], [-76.85, 71.25], [-76.75, 71.0], [-76.85, 70.75], [-76.82, 70.68], [-76.47, 70.53], [-76.32, 70.18], [-76.25, 70.15], [-76.0, 70.25], [-75.47, 70.03], [-75.25, 69.5], [-75.35, 69.25], [-75.25, 69.0], [-75.47, 68.47], [-76.0, 68.25], [-76.25, 68.35], [-76.5, 68.25], [-76.75, 68.35], [-77.0, 68.25], [-77.25, 68.35], [-77.32, 68.32], [-77.47, 67.97], [-78.0, 67.75], [-78.25, 67.85], [-78.5, 67.75], [-78.75, 67.85], [-79.0, 67.75], [-79.25, 67.85], [-79.5, 67.75], [-80.03, 67.97], [-80.18, 68.32], [-80.25, 68.35], [-80.5, 68.25], [-80.75, 68.35], [-80.82, 68.32], [-80.96, 68.0], [-80.75, 67.5], [-80.85, 67.25], [-80.75, 67.0], [-80.97, 66.47], [-81.5, 66.25], [-81.75, 66.35], [-82.0, 66.25], [-82.25, 66.35], [-82.32, 66.32], [-82.47, 65.97], [-83.0, 65.75], [-83.25, 65.85], [-83.5, 65.75], [-83.75, 65.85], [-84.0, 65.75], [-84.25, 65.85], [-84.5, 65.75], [-84.75, 65.85], [-85.0, 65.75], [-85.53, 65.97], [-85.68, 66.32], [-85.75, 66.35], [-85.82, 66.32], [-85.97, 65.97], [-86.5, 65.75], [-87.03, 65.97], [-87.25, 66.5], [-87.03, 67.03], [-86.68, 67.18], [-86.53, 67.53], [-86.0, 67.75]]]]}, "2017-06-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-86.0, 67.75], [-85.75, 67.65], [-85.68, 67.68], [-85.65, 67.75], [-85.75, 68.0], [-85.53, 68.53], [-85.18, 68.68], [-85.12, 68.8], [-85.53, 68.97], [-85.75, 69.5], [-85.65, 69.75], [-85.75, 70.0], [-85.53, 70.53], [-85.0, 70.75], [-84.75, 70.65], [-84.5, 70.75], [-84.25, 70.65], [-84.18, 70.68], [-84.15, 70.75], [-84.25, 71.0], [-84.03, 71.53], [-83.5, 71.75], [-83.25, 71.65], [-83.0, 71.75], [-82.75, 71.65], [-82.5, 71.75], [-82.25, 71.65], [-82.0, 71.75], [-81.75, 71.65], [-81.5, 71.75], [-81.25, 71.65], [-81.0, 71.75], [-80.75, 71.65], [-80.5, 71.75], [-80.25, 71.65], [-80.0, 71.75], [-79.75, 71.65], [-79.5, 71.75], [-79.25, 71.65], [-79.0, 71.75], [-78.75, 71.65], [-78.5, 71.75], [-78.25, 71.65], [-78.18, 71.68], [-78.03, 72.03], [-77.5, 72.25], [-76.97, 72.03], [-76.75, 71.5], [-76.85, 71.25], [-76.75, 71.0], [-76.85, 70.75], [-76.82, 70.68], [-76.47, 70.53], [-76.32, 70.18], [-76.25, 70.15], [-76.0, 70.25], [-75.47, 70.03], [-75.25, 69.5], [-75.35, 69.25], [-75.25, 69.0], [-75.47, 68.47], [-76.0, 68.25], [-76.25, 68.35], [-76.5, 68.25], [-76.75, 68.35], [-77.0, 68.25], [-77.25, 68.35], [-77.32, 68.32], [-77.47, 67.97], [-78.0, 67.75], [-78.25, 67.85], [-78.5, 67.75], [-78.75, 67.85], [-79.0, 67.75], [-79.25, 67.85], [-79.5, 67.75], [-80.03, 67.97], [-80.18, 68.32], [-80.25, 68.35], [-80.5, 68.25], [-80.75, 68.35], [-80.82, 68.32], [-80.96, 68.0], [-80.82, 67.68], [-80.47, 67.53], [-80.25, 67.0], [-80.47, 66.47], [-81.0, 66.25], [-81.25, 66.35], [-81.5, 66.25], [-81.75, 66.35], [-82.0, 66.25], [-82.25, 66.35], [-82.32, 66.32], [-82.47, 65.97], [-83.0, 65.75], [-83.25, 65.85], [-83.5, 65.75], [-83.75, 65.85], [-84.0, 65.75], [-84.25, 65.85], [-84.5, 65.75], [-84.75, 65.85], [-85.0, 65.75], [-85.53, 65.97], [-85.68, 66.32], [-85.75, 66.35], [-85.82, 66.32], [-85.97, 65.97], [-86.5, 65.75], [-87.03, 65.97], [-87.25, 66.5], [-87.03, 67.03], [-86.68, 67.18], [-86.53, 67.53], [-86.0, 67.75]]]]}, "2017-06-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-86.0, 67.75], [-85.75, 67.65], [-85.68, 67.68], [-85.65, 67.75], [-85.75, 68.0], [-85.53, 68.53], [-85.18, 68.68], [-85.12, 68.8], [-85.53, 68.97], [-85.75, 69.5], [-85.65, 69.75], [-85.75, 70.0], [-85.53, 70.53], [-85.0, 70.75], [-84.75, 70.65], [-84.5, 70.75], [-84.25, 70.65], [-84.0, 70.75], [-83.5, 70.54], [-83.0, 70.75], [-82.75, 70.65], [-82.68, 70.68], [-82.53, 71.03], [-82.18, 71.18], [-82.03, 71.53], [-81.5, 71.75], [-80.97, 71.53], [-80.82, 71.18], [-80.75, 71.15], [-80.5, 71.25], [-80.25, 71.15], [-80.0, 71.25], [-79.75, 71.15], [-79.5, 71.25], [-78.97, 71.03], [-78.82, 70.68], [-78.75, 70.65], [-78.5, 70.75], [-78.0, 70.54], [-77.5, 70.75], [-76.97, 70.53], [-76.75, 70.0], [-76.87, 69.7], [-76.47, 69.53], [-76.25, 69.0], [-76.47, 68.47], [-77.0, 68.25], [-77.25, 68.35], [-77.32, 68.32], [-77.47, 67.97], [-78.0, 67.75], [-78.25, 67.85], [-78.5, 67.75], [-78.75, 67.85], [-79.0, 67.75], [-79.25, 67.85], [-79.5, 67.75], [-80.03, 67.97], [-80.18, 68.32], [-80.25, 68.35], [-80.5, 68.25], [-80.75, 68.35], [-80.82, 68.32], [-80.96, 68.0], [-80.82, 67.68], [-80.47, 67.53], [-80.25, 67.0], [-80.47, 66.47], [-81.0, 66.25], [-81.25, 66.35], [-81.5, 66.25], [-81.75, 66.35], [-82.0, 66.25], [-82.25, 66.35], [-82.32, 66.32], [-82.47, 65.97], [-83.0, 65.75], [-83.25, 65.85], [-83.5, 65.75], [-83.75, 65.85], [-84.0, 65.75], [-84.25, 65.85], [-84.5, 65.75], [-85.03, 65.97], [-85.18, 66.32], [-85.25, 66.35], [-85.5, 66.25], [-85.75, 66.35], [-85.82, 66.32], [-85.97, 65.97], [-86.5, 65.75], [-87.03, 65.97], [-87.25, 66.5], [-87.03, 67.03], [-86.68, 67.18], [-86.53, 67.53], [-86.0, 67.75]]]]}, "2017-07-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-84.25, 66.5], [-84.03, 67.03], [-83.5, 67.25], [-83.25, 67.15], [-83.0, 67.25], [-82.47, 67.03], [-82.25, 66.5], [-82.47, 65.97], [-83.0, 65.75], [-83.25, 65.85], [-83.5, 65.75], [-84.03, 65.97], [-84.25, 66.5]]], [[[-81.53, 66.47], [-81.75, 67.0], [-81.53, 67.53], [-81.0, 67.75], [-80.47, 67.53], [-80.25, 67.0], [-80.47, 66.47], [-81.0, 66.25], [-81.53, 66.47]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 9.531362643431066}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 5.5579999737673145}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [7.044592858706494, 10.145227905429238, 11.195767675807474, 11.892592952115308, 11.642945402319071, 9.893636415533194]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [9.09628887828768, 13.28345276328173, 15.33775352430797, 16.686673497211416, 16.203535971099825, 14.655053094043922]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.7353522306784632, 4.7961252570304085, 5.685136913014795, 6.000825377463314, 5.714764148967898, 4.158108642633731]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [3.370069715282, 6.787958757815602, 8.611791660912274, 9.531362643431066, 8.958286118548472, 6.046413228323786]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4776593598411825, 1.835514106837063, 2.0171050922360796, 2.0336820546711873, 2.0746261589702897, 1.6346542384016909]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.6200767974589654, 2.550790259999705, 3.2115640141376773, 3.00086790983168, 3.3748264341302336, 1.6839074092518223]}}