{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:54:16.448330", "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-Aug-17_to_2013-Aug-22_266.0_48.0"}, "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": 2013080002515}, "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": "August 17 2013"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 22 2013"}, "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": 455157.09761024825}, "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": 48.0}, "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": 266.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "266.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 259.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 275.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 44.75}, "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": {"2013-08-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-94.03, 51.47], [-94.25, 52.0], [-94.03, 52.53], [-93.5, 52.75], [-93.25, 52.65], [-93.0, 52.75], [-92.75, 52.65], [-92.68, 52.68], [-92.53, 53.03], [-92.0, 53.25], [-91.75, 53.15], [-91.5, 53.25], [-91.25, 53.15], [-91.0, 53.25], [-90.75, 53.15], [-90.5, 53.25], [-90.25, 53.15], [-90.0, 53.25], [-89.47, 53.03], [-89.32, 52.68], [-89.25, 52.65], [-89.0, 52.75], [-88.75, 52.65], [-88.5, 52.75], [-88.25, 52.65], [-88.0, 52.75], [-87.75, 52.65], [-87.5, 52.75], [-86.97, 52.53], [-86.82, 52.18], [-86.47, 52.03], [-86.25, 51.5], [-86.35, 51.25], [-86.25, 51.0], [-86.47, 50.47], [-87.0, 50.25], [-87.25, 50.35], [-87.5, 50.25], [-87.75, 50.35], [-88.0, 50.25], [-88.25, 50.35], [-88.5, 50.25], [-88.75, 50.35], [-89.0, 50.25], [-89.25, 50.35], [-89.5, 50.25], [-89.75, 50.35], [-90.0, 50.25], [-90.5, 50.46], [-91.0, 50.25], [-91.25, 50.35], [-91.5, 50.25], [-91.75, 50.35], [-92.0, 50.25], [-92.25, 50.35], [-92.5, 50.25], [-93.03, 50.47], [-93.25, 51.0], [-93.15, 51.25], [-93.18, 51.32], [-93.25, 51.35], [-93.5, 51.25], [-94.03, 51.47]]]]}, "2013-08-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-100.53, 47.53], [-100.18, 47.68], [-100.04, 48.0], [-100.18, 48.32], [-100.53, 48.47], [-100.75, 49.0], [-100.53, 49.53], [-100.0, 49.75], [-99.75, 49.65], [-99.5, 49.75], [-99.25, 49.65], [-99.0, 49.75], [-98.5, 49.54], [-98.0, 49.75], [-97.5, 49.54], [-97.0, 49.75], [-96.75, 49.65], [-96.5, 49.75], [-95.97, 49.53], [-95.82, 49.18], [-95.47, 49.03], [-95.25, 48.5], [-95.35, 48.25], [-95.25, 48.0], [-95.35, 47.75], [-95.25, 47.5], [-95.35, 47.25], [-95.25, 47.0], [-95.47, 46.47], [-96.0, 46.25], [-96.25, 46.35], [-96.5, 46.25], [-96.75, 46.35], [-97.0, 46.25], [-97.25, 46.35], [-97.5, 46.25], [-97.75, 46.35], [-97.82, 46.32], [-97.97, 45.97], [-98.5, 45.75], [-98.75, 45.85], [-99.0, 45.75], [-99.25, 45.85], [-99.5, 45.75], [-100.03, 45.97], [-100.18, 46.32], [-100.53, 46.47], [-100.75, 47.0], [-100.53, 47.53]]], [[[-94.0, 49.25], [-93.75, 49.15], [-93.62, 49.2], [-93.75, 49.5], [-93.65, 49.75], [-93.75, 50.0], [-93.53, 50.53], [-93.18, 50.68], [-93.15, 50.75], [-93.25, 51.0], [-93.15, 51.25], [-93.18, 51.32], [-93.25, 51.35], [-93.5, 51.25], [-94.03, 51.47], [-94.25, 52.0], [-94.03, 52.53], [-93.5, 52.75], [-93.25, 52.65], [-93.0, 52.75], [-92.75, 52.65], [-92.68, 52.68], [-92.53, 53.03], [-92.0, 53.25], [-91.75, 53.15], [-91.5, 53.25], [-91.25, 53.15], [-91.0, 53.25], [-90.75, 53.15], [-90.5, 53.25], [-90.25, 53.15], [-90.0, 53.25], [-89.47, 53.03], [-89.32, 52.68], [-89.25, 52.65], [-89.0, 52.75], [-88.75, 52.65], [-88.5, 52.75], [-88.25, 52.65], [-88.0, 52.75], [-87.75, 52.65], [-87.5, 52.75], [-86.97, 52.53], [-86.82, 52.18], [-86.47, 52.03], [-86.25, 51.5], [-86.35, 51.25], [-86.32, 51.18], [-86.25, 51.15], [-86.0, 51.25], [-85.47, 51.03], [-85.32, 50.68], [-85.25, 50.65], [-85.0, 50.75], [-84.47, 50.53], [-84.25, 50.0], [-84.47, 49.47], [-85.0, 49.25], [-85.25, 49.35], [-85.5, 49.25], [-85.75, 49.35], [-86.0, 49.25], [-86.25, 49.35], [-86.5, 49.25], [-86.75, 49.35], [-87.0, 49.25], [-87.25, 49.35], [-87.5, 49.25], [-88.03, 49.47], [-88.18, 49.82], [-88.25, 49.85], [-88.5, 49.75], [-88.75, 49.85], [-88.82, 49.82], [-88.97, 49.47], [-89.5, 49.25], [-90.03, 49.47], [-90.18, 49.82], [-90.25, 49.85], [-90.32, 49.82], [-90.35, 49.75], [-90.25, 49.5], [-90.47, 48.97], [-91.0, 48.75], [-91.25, 48.85], [-91.5, 48.75], [-91.75, 48.85], [-92.0, 48.75], [-92.25, 48.85], [-92.5, 48.75], [-92.75, 48.85], [-92.87, 48.8], [-92.75, 48.5], [-92.97, 47.97], [-93.32, 47.82], [-93.47, 47.47], [-94.0, 47.25], [-94.53, 47.47], [-94.75, 48.0], [-94.65, 48.25], [-94.75, 48.5], [-94.53, 49.03], [-94.0, 49.25]]]]}, "2013-08-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-100.75, 47.0], [-100.53, 47.53], [-100.18, 47.68], [-100.04, 48.0], [-100.18, 48.32], [-100.53, 48.47], [-100.75, 49.0], [-100.53, 49.53], [-100.0, 49.75], [-99.75, 49.65], [-99.5, 49.75], [-99.25, 49.65], [-99.0, 49.75], [-98.5, 49.54], [-98.0, 49.75], [-97.5, 49.54], [-97.0, 49.75], [-96.75, 49.65], [-96.5, 49.75], [-95.97, 49.53], [-95.82, 49.18], [-95.5, 49.04], [-95.0, 49.25], [-94.75, 49.15], [-94.68, 49.18], [-94.53, 49.53], [-94.0, 49.75], [-93.75, 49.65], [-93.68, 49.68], [-93.65, 49.75], [-93.75, 50.0], [-93.53, 50.53], [-93.18, 50.68], [-93.15, 50.75], [-93.25, 51.0], [-93.15, 51.25], [-93.18, 51.32], [-93.25, 51.35], [-93.5, 51.25], [-94.03, 51.47], [-94.25, 52.0], [-94.03, 52.53], [-93.5, 52.75], [-93.25, 52.65], [-93.0, 52.75], [-92.75, 52.65], [-92.68, 52.68], [-92.53, 53.03], [-92.0, 53.25], [-91.75, 53.15], [-91.5, 53.25], [-91.25, 53.15], [-91.0, 53.25], [-90.75, 53.15], [-90.5, 53.25], [-90.25, 53.15], [-90.0, 53.25], [-89.47, 53.03], [-89.32, 52.68], [-89.25, 52.65], [-89.18, 52.68], [-89.03, 53.03], [-88.5, 53.25], [-87.97, 53.03], [-87.82, 52.68], [-87.75, 52.65], [-87.5, 52.75], [-86.97, 52.53], [-86.82, 52.18], [-86.47, 52.03], [-86.25, 51.5], [-86.35, 51.25], [-86.32, 51.18], [-86.25, 51.15], [-86.0, 51.25], [-85.47, 51.03], [-85.32, 50.68], [-85.25, 50.65], [-85.0, 50.75], [-84.47, 50.53], [-84.25, 50.0], [-84.47, 49.47], [-85.0, 49.25], [-85.25, 49.35], [-85.5, 49.25], [-85.75, 49.35], [-86.0, 49.25], [-86.25, 49.35], [-86.32, 49.32], [-86.47, 48.97], [-87.0, 48.75], [-87.25, 48.85], [-87.5, 48.75], [-87.75, 48.85], [-87.82, 48.82], [-87.97, 48.47], [-88.5, 48.25], [-88.75, 48.35], [-88.82, 48.32], [-88.97, 47.97], [-89.32, 47.82], [-89.47, 47.47], [-90.0, 47.25], [-89.75, 47.15], [-89.5, 47.25], [-88.97, 47.03], [-88.75, 46.5], [-88.97, 45.97], [-89.5, 45.75], [-89.75, 45.85], [-90.0, 45.75], [-90.25, 45.85], [-90.5, 45.75], [-90.75, 45.85], [-91.0, 45.75], [-91.25, 45.85], [-91.32, 45.82], [-91.47, 45.47], [-92.0, 45.25], [-92.25, 45.35], [-92.5, 45.25], [-92.75, 45.35], [-92.82, 45.32], [-92.97, 44.97], [-93.5, 44.75], [-93.75, 44.85], [-94.0, 44.75], [-94.25, 44.85], [-94.5, 44.75], [-94.75, 44.85], [-95.0, 44.75], [-95.25, 44.85], [-95.32, 44.82], [-95.47, 44.47], [-96.0, 44.25], [-96.25, 44.35], [-96.5, 44.25], [-97.03, 44.47], [-97.18, 44.82], [-97.5, 44.96], [-98.0, 44.75], [-98.53, 44.97], [-98.68, 45.32], [-98.75, 45.35], [-99.0, 45.25], [-99.53, 45.47], [-99.68, 45.82], [-100.03, 45.97], [-100.18, 46.32], [-100.53, 46.47], [-100.75, 47.0]], [[-90.25, 47.35], [-90.5, 47.25], [-90.25, 47.15], [-90.0, 47.25], [-90.25, 47.35]], [[-90.75, 47.35], [-90.82, 47.32], [-90.87, 47.2], [-90.75, 47.15], [-90.5, 47.25], [-90.75, 47.35]]]]}, "2013-08-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-100.75, 47.0], [-100.53, 47.53], [-100.18, 47.68], [-100.04, 48.0], [-100.18, 48.32], [-100.53, 48.47], [-100.75, 49.0], [-100.53, 49.53], [-100.0, 49.75], [-99.75, 49.65], [-99.5, 49.75], [-99.25, 49.65], [-99.0, 49.75], [-98.5, 49.54], [-98.0, 49.75], [-97.5, 49.54], [-97.0, 49.75], [-96.75, 49.65], [-96.5, 49.75], [-95.97, 49.53], [-95.82, 49.18], [-95.5, 49.04], [-95.0, 49.25], [-94.75, 49.15], [-94.68, 49.18], [-94.53, 49.53], [-94.0, 49.75], [-93.75, 49.65], [-93.68, 49.68], [-93.65, 49.75], [-93.75, 50.0], [-93.53, 50.53], [-93.18, 50.68], [-93.15, 50.75], [-93.25, 51.0], [-93.15, 51.25], [-93.18, 51.32], [-93.25, 51.35], [-93.5, 51.25], [-94.03, 51.47], [-94.25, 52.0], [-94.03, 52.53], [-93.5, 52.75], [-93.25, 52.65], [-93.0, 52.75], [-92.75, 52.65], [-92.68, 52.68], [-92.53, 53.03], [-92.0, 53.25], [-91.75, 53.15], [-91.5, 53.25], [-91.25, 53.15], [-91.0, 53.25], [-90.75, 53.15], [-90.5, 53.25], [-90.25, 53.15], [-90.0, 53.25], [-89.47, 53.03], [-89.32, 52.68], [-89.25, 52.65], [-89.18, 52.68], [-89.03, 53.03], [-88.5, 53.25], [-87.97, 53.03], [-87.82, 52.68], [-87.75, 52.65], [-87.5, 52.75], [-86.97, 52.53], [-86.82, 52.18], [-86.47, 52.03], [-86.25, 51.5], [-86.35, 51.25], [-86.32, 51.18], [-86.25, 51.15], [-86.0, 51.25], [-85.47, 51.03], [-85.32, 50.68], [-85.25, 50.65], [-85.0, 50.75], [-84.47, 50.53], [-84.25, 50.0], [-84.47, 49.47], [-85.0, 49.25], [-85.25, 49.35], [-85.5, 49.25], [-85.75, 49.35], [-86.0, 49.25], [-86.25, 49.35], [-86.32, 49.32], [-86.47, 48.97], [-87.0, 48.75], [-87.25, 48.85], [-87.5, 48.75], [-87.75, 48.85], [-87.82, 48.82], [-87.97, 48.47], [-88.5, 48.25], [-88.75, 48.35], [-88.82, 48.32], [-88.97, 47.97], [-89.32, 47.82], [-89.47, 47.47], [-90.0, 47.25], [-89.75, 47.15], [-89.5, 47.25], [-88.97, 47.03], [-88.75, 46.5], [-88.97, 45.97], [-89.5, 45.75], [-89.75, 45.85], [-90.0, 45.75], [-90.25, 45.85], [-90.5, 45.75], [-90.75, 45.85], [-91.0, 45.75], [-91.25, 45.85], [-91.32, 45.82], [-91.47, 45.47], [-92.0, 45.25], [-92.25, 45.35], [-92.5, 45.25], [-92.75, 45.35], [-92.82, 45.32], [-92.97, 44.97], [-93.5, 44.75], [-93.75, 44.85], [-93.82, 44.82], [-93.97, 44.47], [-94.5, 44.25], [-94.75, 44.35], [-95.0, 44.25], [-95.5, 44.46], [-96.0, 44.25], [-96.25, 44.35], [-96.5, 44.25], [-97.03, 44.47], [-97.18, 44.82], [-97.5, 44.96], [-98.0, 44.75], [-98.53, 44.97], [-98.68, 45.32], [-98.75, 45.35], [-99.0, 45.25], [-99.53, 45.47], [-99.68, 45.82], [-100.03, 45.97], [-100.18, 46.32], [-100.53, 46.47], [-100.75, 47.0]], [[-90.25, 47.35], [-90.5, 47.25], [-90.25, 47.15], [-90.0, 47.25], [-90.25, 47.35]], [[-90.75, 47.35], [-90.82, 47.32], [-90.87, 47.2], [-90.75, 47.15], [-90.5, 47.25], [-90.75, 47.35]]]]}, "2013-08-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-98.5, 47.25], [-98.25, 47.15], [-98.18, 47.18], [-98.15, 47.25], [-98.25, 47.5], [-98.03, 48.03], [-97.5, 48.25], [-97.25, 48.15], [-97.18, 48.18], [-97.03, 48.53], [-96.5, 48.75], [-96.25, 48.65], [-96.0, 48.75], [-95.75, 48.65], [-95.68, 48.68], [-95.53, 49.03], [-95.0, 49.25], [-94.75, 49.15], [-94.68, 49.18], [-94.53, 49.53], [-94.0, 49.75], [-93.75, 49.65], [-93.5, 49.75], [-93.25, 49.65], [-93.18, 49.68], [-93.15, 49.75], [-93.25, 50.0], [-93.03, 50.53], [-92.5, 50.75], [-92.25, 50.65], [-92.0, 50.75], [-91.75, 50.65], [-91.5, 50.75], [-91.25, 50.65], [-91.0, 50.75], [-90.75, 50.65], [-90.68, 50.68], [-90.53, 51.03], [-90.0, 51.25], [-89.75, 51.15], [-89.5, 51.25], [-89.25, 51.15], [-89.18, 51.18], [-89.03, 51.53], [-88.68, 51.68], [-88.62, 51.8], [-89.03, 51.97], [-89.25, 52.5], [-89.03, 53.03], [-88.5, 53.25], [-87.97, 53.03], [-87.75, 52.5], [-87.87, 52.2], [-87.75, 52.15], [-87.5, 52.25], [-87.25, 52.15], [-87.0, 52.25], [-86.47, 52.03], [-86.25, 51.5], [-86.35, 51.25], [-86.32, 51.18], [-86.25, 51.15], [-86.0, 51.25], [-85.47, 51.03], [-85.32, 50.68], [-85.25, 50.65], [-85.0, 50.75], [-84.47, 50.53], [-84.25, 50.0], [-84.47, 49.47], [-85.0, 49.25], [-85.25, 49.35], [-85.5, 49.25], [-85.75, 49.35], [-86.0, 49.25], [-86.25, 49.35], [-86.32, 49.32], [-86.47, 48.97], [-87.0, 48.75], [-87.25, 48.85], [-87.5, 48.75], [-87.75, 48.85], [-87.82, 48.82], [-87.97, 48.47], [-88.5, 48.25], [-88.75, 48.35], [-88.82, 48.32], [-88.97, 47.97], [-89.32, 47.82], [-89.47, 47.47], [-90.0, 47.25], [-89.75, 47.15], [-89.5, 47.25], [-88.97, 47.03], [-88.75, 46.5], [-88.97, 45.97], [-89.5, 45.75], [-89.75, 45.85], [-90.0, 45.75], [-90.25, 45.85], [-90.5, 45.75], [-90.75, 45.85], [-91.0, 45.75], [-91.25, 45.85], [-91.32, 45.82], [-91.47, 45.47], [-92.0, 45.25], [-92.25, 45.35], [-92.5, 45.25], [-92.75, 45.35], [-92.82, 45.32], [-92.97, 44.97], [-93.5, 44.75], [-93.75, 44.85], [-93.82, 44.82], [-93.97, 44.47], [-94.5, 44.25], [-94.75, 44.35], [-95.0, 44.25], [-95.5, 44.46], [-96.0, 44.25], [-96.25, 44.35], [-96.5, 44.25], [-97.03, 44.47], [-97.18, 44.82], [-97.5, 44.96], [-98.0, 44.75], [-98.53, 44.97], [-98.68, 45.32], [-98.75, 45.35], [-99.0, 45.25], [-99.53, 45.47], [-99.75, 46.0], [-99.53, 46.53], [-99.18, 46.68], [-99.03, 47.03], [-98.5, 47.25]], [[-90.25, 47.35], [-90.5, 47.25], [-90.25, 47.15], [-90.0, 47.25], [-90.25, 47.35]], [[-90.75, 47.35], [-90.82, 47.32], [-90.87, 47.2], [-90.75, 47.15], [-90.5, 47.25], [-90.75, 47.35]]]]}, "2013-08-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-95.53, 44.47], [-95.75, 45.0], [-95.53, 45.53], [-95.0, 45.75], [-94.75, 45.65], [-94.5, 45.75], [-93.97, 45.53], [-93.75, 45.0], [-93.97, 44.47], [-94.5, 44.25], [-94.75, 44.35], [-95.0, 44.25], [-95.53, 44.47]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 8.645600795549797}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 5.425329109400358}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [21.344508273392023, 21.817231005157225, 22.224782548720214, 24.575061062028112, 23.564013236798644, 24.52359111129806]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [22.659624523426885, 24.55830964351594, 25.74604458376615, 27.437321356538973, 26.52134305972521, 24.538529108611613]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [5.120782805714829, 4.47929647372457, 4.501111914741356, 6.8252917172122345, 5.537706872467095, 3.8756072980298484]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [6.228125405194021, 5.952508843657085, 6.314547424356874, 8.645600795549797, 7.620468667818045, 3.8925827003788527]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.536298585074996, 1.44569857345334, 1.5360540333705945, 2.291819539291922, 1.9199487792767627, 1.3913436849489145]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.807179973164348, 1.739180643009844, 2.2156675677334863, 2.7433258089114005, 2.7368098312308238, 1.414756417448467]}}