{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:04:06.930532", "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": "2015-Oct-30_to_2015-Nov-01_240.5_46.0"}, "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": 2015100002581}, "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": "October 30 2015"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "November 01 2015"}, "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": 96978.09028385364}, "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": ["W.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": 46.0}, "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": 240.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "240.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 238.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 245.75}, "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": 49.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2015-10-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-122.03, 46.03], [-121.5, 46.25], [-121.25, 46.15], [-121.12, 46.2], [-121.25, 46.5], [-121.03, 47.03], [-120.5, 47.25], [-120.25, 47.15], [-120.18, 47.18], [-120.03, 47.53], [-119.5, 47.75], [-119.25, 47.65], [-119.18, 47.68], [-119.03, 48.03], [-118.68, 48.18], [-118.65, 48.25], [-118.75, 48.5], [-118.53, 49.03], [-118.0, 49.25], [-117.75, 49.15], [-117.5, 49.25], [-117.25, 49.15], [-117.18, 49.18], [-117.03, 49.53], [-116.5, 49.75], [-115.97, 49.53], [-115.82, 49.18], [-115.47, 49.03], [-115.32, 48.68], [-115.25, 48.65], [-115.0, 48.75], [-114.75, 48.65], [-114.5, 48.75], [-113.97, 48.53], [-113.75, 48.0], [-113.97, 47.47], [-114.32, 47.32], [-114.47, 46.97], [-115.0, 46.75], [-115.25, 46.85], [-115.5, 46.75], [-115.75, 46.85], [-115.87, 46.8], [-115.75, 46.5], [-115.97, 45.97], [-116.5, 45.75], [-116.75, 45.85], [-117.0, 45.75], [-117.25, 45.85], [-117.5, 45.75], [-117.75, 45.85], [-117.82, 45.82], [-117.97, 45.47], [-118.32, 45.32], [-118.47, 44.97], [-119.0, 44.75], [-119.25, 44.85], [-119.5, 44.75], [-119.75, 44.85], [-120.0, 44.75], [-120.25, 44.85], [-120.5, 44.75], [-120.75, 44.85], [-120.82, 44.82], [-120.97, 44.47], [-121.5, 44.25], [-122.03, 44.47], [-122.25, 45.0], [-122.15, 45.25], [-122.25, 45.5], [-122.03, 46.03]]]]}, "2015-10-31T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-122.03, 46.03], [-121.5, 46.25], [-121.25, 46.15], [-121.12, 46.2], [-121.25, 46.5], [-121.03, 47.03], [-120.5, 47.25], [-120.25, 47.15], [-120.18, 47.18], [-120.03, 47.53], [-119.5, 47.75], [-119.25, 47.65], [-119.18, 47.68], [-119.03, 48.03], [-118.68, 48.18], [-118.65, 48.25], [-118.75, 48.5], [-118.53, 49.03], [-118.0, 49.25], [-117.75, 49.15], [-117.5, 49.25], [-117.25, 49.15], [-117.18, 49.18], [-117.03, 49.53], [-116.5, 49.75], [-115.97, 49.53], [-115.82, 49.18], [-115.47, 49.03], [-115.32, 48.68], [-115.25, 48.65], [-115.0, 48.75], [-114.75, 48.65], [-114.5, 48.75], [-113.97, 48.53], [-113.75, 48.0], [-113.97, 47.47], [-114.32, 47.32], [-114.47, 46.97], [-115.0, 46.75], [-115.25, 46.85], [-115.5, 46.75], [-115.75, 46.85], [-115.87, 46.8], [-115.75, 46.5], [-115.97, 45.97], [-116.5, 45.75], [-116.75, 45.85], [-117.0, 45.75], [-117.25, 45.85], [-117.5, 45.75], [-117.75, 45.85], [-117.82, 45.82], [-117.97, 45.47], [-118.32, 45.32], [-118.47, 44.97], [-119.0, 44.75], [-119.25, 44.85], [-119.5, 44.75], [-119.75, 44.85], [-120.0, 44.75], [-120.25, 44.85], [-120.5, 44.75], [-120.75, 44.85], [-120.82, 44.82], [-120.97, 44.47], [-121.5, 44.25], [-122.03, 44.47], [-122.25, 45.0], [-122.15, 45.25], [-122.25, 45.5], [-122.03, 46.03]]]]}, "2015-11-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-122.03, 46.03], [-121.5, 46.25], [-121.25, 46.15], [-121.12, 46.2], [-121.25, 46.5], [-121.03, 47.03], [-120.5, 47.25], [-120.25, 47.15], [-120.18, 47.18], [-120.03, 47.53], [-119.5, 47.75], [-119.25, 47.65], [-119.18, 47.68], [-119.03, 48.03], [-118.68, 48.18], [-118.65, 48.25], [-118.75, 48.5], [-118.53, 49.03], [-118.0, 49.25], [-117.75, 49.15], [-117.5, 49.25], [-117.25, 49.15], [-117.18, 49.18], [-117.03, 49.53], [-116.5, 49.75], [-115.97, 49.53], [-115.82, 49.18], [-115.47, 49.03], [-115.32, 48.68], [-115.25, 48.65], [-115.0, 48.75], [-114.75, 48.65], [-114.5, 48.75], [-113.97, 48.53], [-113.75, 48.0], [-113.97, 47.47], [-114.32, 47.32], [-114.47, 46.97], [-115.0, 46.75], [-115.25, 46.85], [-115.5, 46.75], [-115.75, 46.85], [-115.87, 46.8], [-115.75, 46.5], [-115.97, 45.97], [-116.5, 45.75], [-116.75, 45.85], [-117.0, 45.75], [-117.25, 45.85], [-117.5, 45.75], [-117.75, 45.85], [-117.82, 45.82], [-117.97, 45.47], [-118.32, 45.32], [-118.47, 44.97], [-119.0, 44.75], [-119.25, 44.85], [-119.5, 44.75], [-119.75, 44.85], [-120.0, 44.75], [-120.25, 44.85], [-120.5, 44.75], [-120.75, 44.85], [-120.82, 44.82], [-120.97, 44.47], [-121.5, 44.25], [-122.03, 44.47], [-122.25, 45.0], [-122.15, 45.25], [-122.25, 45.5], [-122.03, 46.03]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 9.659582215367095}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 6.28664865498136}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [11.270549609687635, 12.857955548767166, 10.455293774357528]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [15.888735213880352, 18.010226143681223, 14.656309036167158]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [5.866502785769787, 7.6231553450669445, 5.3702878341073585]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [7.69161863399728, 9.659582215367095, 6.371790593994774]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.5392305725200282, 1.960888252612746, 1.346136741900361]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.2059604953487284, 2.534292360067915, 1.6582482440970019]}}