{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:52:28.158849", "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-08_to_2013-Jan-12_270.5_48.5"}, "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": 2013010001521}, "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 08 2013"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "January 12 2013"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 5}, "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": 244688.57078063453}, "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", "United States"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["C.North-America", "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": 48.5}, "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": 270.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "270.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 262.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 273.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 46.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 51.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2013-01-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-92.53, 47.97], [-92.75, 48.5], [-92.53, 49.03], [-92.0, 49.25], [-91.75, 49.15], [-91.5, 49.25], [-91.25, 49.15], [-91.18, 49.18], [-91.03, 49.53], [-90.5, 49.75], [-90.25, 49.65], [-90.0, 49.75], [-89.47, 49.53], [-89.32, 49.18], [-89.25, 49.15], [-89.0, 49.25], [-88.47, 49.03], [-88.32, 48.68], [-88.25, 48.65], [-88.0, 48.75], [-87.75, 48.65], [-87.5, 48.75], [-87.25, 48.65], [-87.0, 48.75], [-86.75, 48.65], [-86.5, 48.75], [-85.97, 48.53], [-85.75, 48.0], [-85.85, 47.75], [-85.75, 47.5], [-85.97, 46.97], [-86.5, 46.75], [-86.75, 46.85], [-86.82, 46.82], [-86.97, 46.47], [-87.5, 46.25], [-88.03, 46.47], [-88.18, 46.82], [-88.25, 46.85], [-88.32, 46.82], [-88.47, 46.47], [-89.0, 46.25], [-89.5, 46.46], [-90.0, 46.25], [-90.53, 46.47], [-90.75, 47.0], [-90.54, 47.5], [-90.68, 47.82], [-90.75, 47.85], [-91.0, 47.75], [-91.25, 47.85], [-91.5, 47.75], [-91.75, 47.85], [-92.0, 47.75], [-92.53, 47.97]]]]}, "2013-01-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-97.25, 50.5], [-97.03, 51.03], [-96.5, 51.25], [-96.25, 51.15], [-96.0, 51.25], [-95.75, 51.15], [-95.5, 51.25], [-95.25, 51.15], [-95.18, 51.18], [-95.03, 51.53], [-94.5, 51.75], [-94.25, 51.65], [-94.0, 51.75], [-93.75, 51.65], [-93.5, 51.75], [-93.25, 51.65], [-93.18, 51.68], [-93.03, 52.03], [-92.5, 52.25], [-91.97, 52.03], [-91.82, 51.68], [-91.75, 51.65], [-91.5, 51.75], [-91.25, 51.65], [-91.0, 51.75], [-90.75, 51.65], [-90.5, 51.75], [-90.25, 51.65], [-90.0, 51.75], [-89.75, 51.65], [-89.5, 51.75], [-88.97, 51.53], [-88.82, 51.18], [-88.47, 51.03], [-88.25, 50.5], [-88.35, 50.25], [-88.3, 50.12], [-88.0, 50.25], [-87.47, 50.03], [-87.25, 49.5], [-87.35, 49.25], [-87.32, 49.18], [-87.25, 49.15], [-87.0, 49.25], [-86.47, 49.03], [-86.32, 48.68], [-85.97, 48.53], [-85.75, 48.0], [-85.85, 47.75], [-85.75, 47.5], [-85.97, 46.97], [-86.5, 46.75], [-86.75, 46.85], [-86.82, 46.82], [-86.97, 46.47], [-87.5, 46.25], [-87.75, 46.35], [-88.0, 46.25], [-88.25, 46.35], [-88.5, 46.25], [-88.75, 46.35], [-89.0, 46.25], [-89.25, 46.35], [-89.5, 46.25], [-89.75, 46.35], [-90.0, 46.25], [-90.25, 46.35], [-90.5, 46.25], [-90.75, 46.35], [-90.82, 46.32], [-90.97, 45.97], [-91.5, 45.75], [-91.75, 45.85], [-92.0, 45.75], [-92.53, 45.97], [-92.75, 46.5], [-92.53, 47.03], [-92.18, 47.18], [-92.12, 47.3], [-92.53, 47.47], [-92.68, 47.82], [-93.0, 47.96], [-93.5, 47.75], [-94.03, 47.97], [-94.18, 48.32], [-94.25, 48.35], [-94.5, 48.25], [-94.75, 48.35], [-95.0, 48.25], [-95.25, 48.35], [-95.5, 48.25], [-96.03, 48.47], [-96.18, 48.82], [-96.25, 48.85], [-96.5, 48.75], [-96.75, 48.85], [-97.0, 48.75], [-97.53, 48.97], [-97.75, 49.5], [-97.53, 50.03], [-97.18, 50.18], [-97.15, 50.25], [-97.25, 50.5]]]]}, "2013-01-10T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-97.25, 50.5], [-97.03, 51.03], [-96.5, 51.25], [-96.25, 51.15], [-96.0, 51.25], [-95.75, 51.15], [-95.5, 51.25], [-95.25, 51.15], [-95.18, 51.18], [-95.03, 51.53], [-94.5, 51.75], [-94.25, 51.65], [-94.0, 51.75], [-93.75, 51.65], [-93.5, 51.75], [-93.25, 51.65], [-93.18, 51.68], [-93.03, 52.03], [-92.5, 52.25], [-91.97, 52.03], [-91.82, 51.68], [-91.75, 51.65], [-91.5, 51.75], [-91.25, 51.65], [-91.0, 51.75], [-90.75, 51.65], [-90.5, 51.75], [-90.25, 51.65], [-90.0, 51.75], [-89.75, 51.65], [-89.5, 51.75], [-88.97, 51.53], [-88.82, 51.18], [-88.47, 51.03], [-88.25, 50.5], [-88.35, 50.25], [-88.3, 50.12], [-88.0, 50.25], [-87.47, 50.03], [-87.25, 49.5], [-87.35, 49.25], [-87.32, 49.18], [-87.25, 49.15], [-87.0, 49.25], [-86.47, 49.03], [-86.32, 48.68], [-85.97, 48.53], [-85.75, 48.0], [-85.85, 47.75], [-85.75, 47.5], [-85.97, 46.97], [-86.5, 46.75], [-86.75, 46.85], [-86.82, 46.82], [-86.97, 46.47], [-87.5, 46.25], [-87.75, 46.35], [-88.0, 46.25], [-88.25, 46.35], [-88.5, 46.25], [-88.75, 46.35], [-89.0, 46.25], [-89.25, 46.35], [-89.5, 46.25], [-89.75, 46.35], [-90.0, 46.25], [-90.25, 46.35], [-90.5, 46.25], [-90.75, 46.35], [-90.82, 46.32], [-90.97, 45.97], [-91.5, 45.75], [-91.75, 45.85], [-92.0, 45.75], [-92.53, 45.97], [-92.75, 46.5], [-92.53, 47.03], [-92.18, 47.18], [-92.15, 47.25], [-92.18, 47.32], [-92.53, 47.47], [-92.68, 47.82], [-93.0, 47.96], [-93.5, 47.75], [-94.03, 47.97], [-94.18, 48.32], [-94.25, 48.35], [-94.5, 48.25], [-94.75, 48.35], [-95.0, 48.25], [-95.25, 48.35], [-95.5, 48.25], [-96.03, 48.47], [-96.18, 48.82], [-96.25, 48.85], [-96.5, 48.75], [-96.75, 48.85], [-97.0, 48.75], [-97.53, 48.97], [-97.75, 49.5], [-97.53, 50.03], [-97.18, 50.18], [-97.15, 50.25], [-97.25, 50.5]]]]}, "2013-01-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-97.25, 50.5], [-97.03, 51.03], [-96.5, 51.25], [-96.25, 51.15], [-96.0, 51.25], [-95.75, 51.15], [-95.5, 51.25], [-95.25, 51.15], [-95.18, 51.18], [-95.03, 51.53], [-94.5, 51.75], [-94.25, 51.65], [-94.0, 51.75], [-93.75, 51.65], [-93.5, 51.75], [-93.25, 51.65], [-93.18, 51.68], [-93.03, 52.03], [-92.5, 52.25], [-91.97, 52.03], [-91.82, 51.68], [-91.75, 51.65], [-91.5, 51.75], [-91.25, 51.65], [-91.0, 51.75], [-90.75, 51.65], [-90.5, 51.75], [-90.25, 51.65], [-90.0, 51.75], [-89.75, 51.65], [-89.5, 51.75], [-88.97, 51.53], [-88.82, 51.18], [-88.47, 51.03], [-88.25, 50.5], [-88.35, 50.25], [-88.3, 50.12], [-88.0, 50.25], [-87.47, 50.03], [-87.25, 49.5], [-87.35, 49.25], [-87.32, 49.18], [-87.25, 49.15], [-87.0, 49.25], [-86.47, 49.03], [-86.32, 48.68], [-85.97, 48.53], [-85.75, 48.0], [-85.85, 47.75], [-85.75, 47.5], [-85.97, 46.97], [-86.5, 46.75], [-86.75, 46.85], [-86.82, 46.82], [-86.97, 46.47], [-87.5, 46.25], [-87.75, 46.35], [-88.0, 46.25], [-88.25, 46.35], [-88.5, 46.25], [-88.75, 46.35], [-89.0, 46.25], [-89.25, 46.35], [-89.5, 46.25], [-89.75, 46.35], [-90.0, 46.25], [-90.25, 46.35], [-90.5, 46.25], [-90.75, 46.35], [-90.82, 46.32], [-90.97, 45.97], [-91.5, 45.75], [-91.75, 45.85], [-92.0, 45.75], [-92.53, 45.97], [-92.75, 46.5], [-92.53, 47.03], [-92.18, 47.18], [-92.15, 47.25], [-92.18, 47.32], [-92.53, 47.47], [-92.68, 47.82], [-93.0, 47.96], [-93.5, 47.75], [-94.03, 47.97], [-94.18, 48.32], [-94.25, 48.35], [-94.5, 48.25], [-94.75, 48.35], [-95.0, 48.25], [-95.25, 48.35], [-95.5, 48.25], [-96.03, 48.47], [-96.18, 48.82], [-96.25, 48.85], [-96.5, 48.75], [-96.75, 48.85], [-97.0, 48.75], [-97.53, 48.97], [-97.75, 49.5], [-97.53, 50.03], [-97.18, 50.18], [-97.15, 50.25], [-97.25, 50.5]]]]}, "2013-01-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-92.15, 48.25], [-92.25, 48.5], [-92.03, 49.03], [-91.5, 49.25], [-91.25, 49.15], [-91.0, 49.25], [-90.75, 49.15], [-90.5, 49.25], [-90.25, 49.15], [-90.0, 49.25], [-89.75, 49.15], [-89.5, 49.25], [-89.25, 49.15], [-89.18, 49.18], [-89.03, 49.53], [-88.68, 49.68], [-88.53, 50.03], [-88.0, 50.25], [-87.47, 50.03], [-87.25, 49.5], [-87.35, 49.25], [-87.32, 49.18], [-87.25, 49.15], [-87.0, 49.25], [-86.47, 49.03], [-86.32, 48.68], [-85.97, 48.53], [-85.75, 48.0], [-85.85, 47.75], [-85.75, 47.5], [-85.97, 46.97], [-86.5, 46.75], [-86.75, 46.85], [-86.82, 46.82], [-86.97, 46.47], [-87.5, 46.25], [-87.75, 46.35], [-88.0, 46.25], [-88.25, 46.35], [-88.5, 46.25], [-88.75, 46.35], [-89.0, 46.25], [-89.25, 46.35], [-89.5, 46.25], [-89.75, 46.35], [-90.0, 46.25], [-90.25, 46.35], [-90.5, 46.25], [-90.75, 46.35], [-90.82, 46.32], [-90.97, 45.97], [-91.5, 45.75], [-92.03, 45.97], [-92.25, 46.5], [-92.04, 47.0], [-92.25, 47.5], [-92.15, 47.75], [-92.25, 48.0], [-92.15, 48.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 16.45321701585027}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 11.726872207348693}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [-0.2667030991767092, -2.12714755039525, -1.843555905725566, -0.1045104827227874, 0.26877494259679224]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [1.8376808967206557, 1.8412958873984735, 1.9257165520483568, 3.4793828395896753, 3.7093954817299846]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [9.43000118572219, 11.131291927610112, 11.495039364840508, 13.48332082088145, 10.512744656362358]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [12.076491842257099, 14.008520371448896, 13.890202954356823, 16.45321701585027, 12.427885145831397]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.3933202536511946, 1.4939808951887301, 1.5437186476522196, 1.8576186986154342, 1.6046963600485535]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.4733383992550069, 1.7928910439972308, 1.6756278379500527, 2.177074842491417, 1.903982200744583]}}