{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:04:19.547937", "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-Nov-26_to_2015-Nov-30_238.0_60.5"}, "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": 2015110002419}, "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": "November 26 2015"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "November 30 2015"}, "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": 77575.27169467692}, "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.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": 60.5}, "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": 238.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "238.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 236.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 242.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 56.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 61.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2015-11-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-123.53, 59.47], [-123.75, 60.0], [-123.53, 60.53], [-123.0, 60.75], [-122.75, 60.65], [-122.68, 60.68], [-122.53, 61.03], [-122.0, 61.25], [-121.75, 61.15], [-121.5, 61.25], [-120.97, 61.03], [-120.75, 60.5], [-120.85, 60.25], [-120.75, 60.0], [-120.97, 59.47], [-121.5, 59.25], [-121.75, 59.35], [-122.0, 59.25], [-122.25, 59.35], [-122.5, 59.25], [-122.75, 59.35], [-123.0, 59.25], [-123.53, 59.47]]]]}, "2015-11-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-123.53, 61.03], [-123.18, 61.18], [-123.03, 61.53], [-122.5, 61.75], [-122.25, 61.65], [-122.0, 61.75], [-121.47, 61.53], [-121.32, 61.18], [-121.25, 61.15], [-121.0, 61.25], [-120.75, 61.15], [-120.5, 61.25], [-120.25, 61.15], [-120.0, 61.25], [-119.75, 61.15], [-119.5, 61.25], [-119.25, 61.15], [-119.0, 61.25], [-118.47, 61.03], [-118.32, 60.68], [-118.25, 60.65], [-118.18, 60.68], [-118.03, 61.03], [-117.5, 61.25], [-116.97, 61.03], [-116.75, 60.5], [-116.85, 60.25], [-116.75, 60.0], [-116.97, 59.47], [-117.5, 59.25], [-117.75, 59.35], [-118.0, 59.25], [-118.25, 59.35], [-118.5, 59.25], [-118.75, 59.35], [-119.0, 59.25], [-118.47, 59.03], [-118.32, 58.68], [-118.25, 58.65], [-118.0, 58.75], [-117.47, 58.53], [-117.25, 58.0], [-117.35, 57.75], [-117.25, 57.5], [-117.47, 56.97], [-117.82, 56.82], [-117.97, 56.47], [-118.5, 56.25], [-119.03, 56.47], [-119.25, 57.0], [-119.15, 57.25], [-119.18, 57.32], [-119.25, 57.35], [-119.5, 57.25], [-119.75, 57.35], [-119.82, 57.32], [-119.97, 56.97], [-120.5, 56.75], [-120.75, 56.85], [-121.0, 56.75], [-121.25, 56.85], [-121.5, 56.75], [-121.75, 56.85], [-122.0, 56.75], [-122.25, 56.85], [-122.5, 56.75], [-123.03, 56.97], [-123.25, 57.5], [-123.03, 58.03], [-122.68, 58.18], [-122.53, 58.53], [-122.0, 58.75], [-122.53, 58.97], [-122.68, 59.32], [-122.75, 59.35], [-123.0, 59.25], [-123.53, 59.47], [-123.75, 60.0], [-123.65, 60.25], [-123.75, 60.5], [-123.53, 61.03]], [[-119.25, 59.35], [-119.5, 59.25], [-119.25, 59.15], [-119.0, 59.25], [-119.25, 59.35]], [[-119.75, 59.35], [-120.0, 59.25], [-119.75, 59.15], [-119.5, 59.25], [-119.75, 59.35]], [[-120.25, 59.35], [-120.32, 59.32], [-120.35, 59.25], [-120.32, 59.18], [-120.25, 59.15], [-120.0, 59.25], [-120.25, 59.35]], [[-121.75, 58.65], [-121.62, 58.7], [-121.68, 58.82], [-121.75, 58.85], [-122.0, 58.75], [-121.75, 58.65]]]]}, "2015-11-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-123.53, 61.03], [-123.18, 61.18], [-123.03, 61.53], [-122.5, 61.75], [-122.25, 61.65], [-122.0, 61.75], [-121.47, 61.53], [-121.32, 61.18], [-121.25, 61.15], [-121.0, 61.25], [-120.75, 61.15], [-120.5, 61.25], [-120.25, 61.15], [-120.0, 61.25], [-119.75, 61.15], [-119.5, 61.25], [-119.25, 61.15], [-119.0, 61.25], [-118.47, 61.03], [-118.32, 60.68], [-118.25, 60.65], [-118.18, 60.68], [-118.03, 61.03], [-117.5, 61.25], [-116.97, 61.03], [-116.75, 60.5], [-116.85, 60.25], [-116.75, 60.0], [-116.97, 59.47], [-117.5, 59.25], [-117.75, 59.35], [-118.0, 59.25], [-118.25, 59.35], [-118.5, 59.25], [-118.75, 59.35], [-119.0, 59.25], [-118.47, 59.03], [-118.32, 58.68], [-118.25, 58.65], [-118.0, 58.75], [-117.47, 58.53], [-117.25, 58.0], [-117.35, 57.75], [-117.25, 57.5], [-117.47, 56.97], [-117.82, 56.82], [-117.97, 56.47], [-118.5, 56.25], [-119.03, 56.47], [-119.25, 57.0], [-119.15, 57.25], [-119.18, 57.32], [-119.25, 57.35], [-119.5, 57.25], [-119.75, 57.35], [-119.82, 57.32], [-119.97, 56.97], [-120.5, 56.75], [-120.75, 56.85], [-121.0, 56.75], [-121.25, 56.85], [-121.5, 56.75], [-121.75, 56.85], [-122.0, 56.75], [-122.25, 56.85], [-122.5, 56.75], [-123.03, 56.97], [-123.25, 57.5], [-123.03, 58.03], [-122.68, 58.18], [-122.53, 58.53], [-122.0, 58.75], [-122.53, 58.97], [-122.68, 59.32], [-122.75, 59.35], [-123.0, 59.25], [-123.53, 59.47], [-123.75, 60.0], [-123.65, 60.25], [-123.75, 60.5], [-123.53, 61.03]], [[-119.25, 59.35], [-119.5, 59.25], [-119.25, 59.15], [-119.0, 59.25], [-119.25, 59.35]], [[-119.75, 59.35], [-120.0, 59.25], [-119.75, 59.15], [-119.5, 59.25], [-119.75, 59.35]], [[-120.25, 59.35], [-120.32, 59.32], [-120.35, 59.25], [-120.32, 59.18], [-120.25, 59.15], [-120.0, 59.25], [-120.25, 59.35]], [[-121.75, 58.65], [-121.62, 58.7], [-121.68, 58.82], [-121.75, 58.85], [-122.0, 58.75], [-121.75, 58.65]]]]}, "2015-11-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-123.53, 61.03], [-123.18, 61.18], [-123.03, 61.53], [-122.5, 61.75], [-122.25, 61.65], [-122.0, 61.75], [-121.47, 61.53], [-121.32, 61.18], [-121.25, 61.15], [-121.0, 61.25], [-120.75, 61.15], [-120.5, 61.25], [-120.25, 61.15], [-120.0, 61.25], [-119.75, 61.15], [-119.5, 61.25], [-119.25, 61.15], [-119.0, 61.25], [-118.47, 61.03], [-118.32, 60.68], [-118.25, 60.65], [-118.18, 60.68], [-118.03, 61.03], [-117.5, 61.25], [-116.97, 61.03], [-116.75, 60.5], [-116.85, 60.25], [-116.75, 60.0], [-116.97, 59.47], [-117.5, 59.25], [-117.75, 59.35], [-118.0, 59.25], [-118.25, 59.35], [-118.5, 59.25], [-118.75, 59.35], [-119.0, 59.25], [-118.47, 59.03], [-118.32, 58.68], [-118.25, 58.65], [-118.0, 58.75], [-117.47, 58.53], [-117.25, 58.0], [-117.35, 57.75], [-117.25, 57.5], [-117.47, 56.97], [-117.82, 56.82], [-117.97, 56.47], [-118.5, 56.25], [-119.03, 56.47], [-119.25, 57.0], [-119.15, 57.25], [-119.18, 57.32], [-119.25, 57.35], [-119.5, 57.25], [-119.75, 57.35], [-119.82, 57.32], [-119.97, 56.97], [-120.5, 56.75], [-120.75, 56.85], [-121.0, 56.75], [-121.25, 56.85], [-121.5, 56.75], [-121.75, 56.85], [-122.0, 56.75], [-122.25, 56.85], [-122.5, 56.75], [-123.03, 56.97], [-123.25, 57.5], [-123.03, 58.03], [-122.68, 58.18], [-122.53, 58.53], [-122.0, 58.75], [-122.53, 58.97], [-122.68, 59.32], [-122.75, 59.35], [-123.0, 59.25], [-123.53, 59.47], [-123.75, 60.0], [-123.65, 60.25], [-123.75, 60.5], [-123.53, 61.03]], [[-119.25, 59.35], [-119.5, 59.25], [-119.25, 59.15], [-119.0, 59.25], [-119.25, 59.35]], [[-119.75, 59.35], [-120.0, 59.25], [-119.75, 59.15], [-119.5, 59.25], [-119.75, 59.35]], [[-120.25, 59.35], [-120.32, 59.32], [-120.35, 59.25], [-120.32, 59.18], [-120.25, 59.15], [-120.0, 59.25], [-120.25, 59.35]], [[-121.75, 58.65], [-121.62, 58.7], [-121.68, 58.82], [-121.75, 58.85], [-122.0, 58.75], [-121.75, 58.65]]]]}, "2015-11-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-122.0, 58.75], [-121.75, 58.65], [-121.5, 58.75], [-121.25, 58.65], [-121.0, 58.75], [-120.75, 58.65], [-120.5, 58.75], [-120.25, 58.65], [-120.0, 58.75], [-119.75, 58.65], [-119.5, 58.75], [-119.25, 58.65], [-119.0, 58.75], [-118.47, 58.53], [-118.3, 58.13], [-118.0, 58.25], [-117.47, 58.03], [-117.25, 57.5], [-117.47, 56.97], [-118.0, 56.75], [-118.53, 56.97], [-118.7, 57.38], [-119.0, 57.25], [-119.25, 57.35], [-119.5, 57.25], [-119.75, 57.35], [-120.0, 57.25], [-120.25, 57.35], [-120.32, 57.32], [-120.47, 56.97], [-121.0, 56.75], [-121.25, 56.85], [-121.5, 56.75], [-121.75, 56.85], [-122.0, 56.75], [-122.53, 56.97], [-122.75, 57.5], [-122.65, 57.75], [-122.75, 58.0], [-122.53, 58.53], [-122.0, 58.75]]], [[[-123.53, 61.03], [-123.18, 61.18], [-123.03, 61.53], [-122.5, 61.75], [-122.25, 61.65], [-122.0, 61.75], [-121.47, 61.53], [-121.32, 61.18], [-121.25, 61.15], [-121.0, 61.25], [-120.75, 61.15], [-120.5, 61.25], [-120.25, 61.15], [-120.0, 61.25], [-119.75, 61.15], [-119.5, 61.25], [-119.25, 61.15], [-119.0, 61.25], [-118.47, 61.03], [-118.32, 60.68], [-118.25, 60.65], [-118.18, 60.68], [-118.03, 61.03], [-117.5, 61.25], [-116.97, 61.03], [-116.75, 60.5], [-116.85, 60.25], [-116.75, 60.0], [-116.97, 59.47], [-117.5, 59.25], [-117.75, 59.35], [-118.0, 59.25], [-118.25, 59.35], [-118.5, 59.25], [-118.75, 59.35], [-119.0, 59.25], [-119.53, 59.47], [-119.68, 59.82], [-119.75, 59.85], [-120.0, 59.75], [-120.25, 59.85], [-120.5, 59.75], [-120.75, 59.85], [-121.0, 59.75], [-121.25, 59.85], [-121.5, 59.75], [-121.75, 59.85], [-121.82, 59.82], [-121.97, 59.47], [-122.5, 59.25], [-123.03, 59.47], [-123.18, 59.82], [-123.53, 59.97], [-123.75, 60.5], [-123.53, 61.03]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 17.907950948081066}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 12.099540100346138}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [-2.9081158762672317, 0.7525081913756821, -2.251227240728042, -1.2862474031648503, -2.2955009337857746]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [-0.9854669142232524, 4.382093788938562, 0.6880566010327698, 0.9611861767927508, 0.1250628864309533]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [11.45072252100645, 13.686389669901951, 10.9556677364721, 12.132354943624282, 11.405936353096235]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [13.042742632662112, 17.907950948081066, 13.126998388943036, 16.786299481835385, 15.940841355526516]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.5856259252124438, 1.8584297083820065, 1.464754949711418, 1.6116467227198947, 1.4864513388134812]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.7563122314537525, 2.3796445676841107, 1.79415468073567, 2.179794269005355, 2.0371784903768972]}}