{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:03:56.667449", "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-Sep-29_to_2015-Oct-01_236.5_54.5"}, "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": 2015090002710}, "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": "September 29 2015"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "October 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": 106050.62717100329}, "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": 54.5}, "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": 236.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "236.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 233.75}, "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": 52.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 57.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2015-09-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-125.5, 54.75], [-125.25, 54.65], [-125.18, 54.68], [-125.03, 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[-121.68, 54.82], [-121.75, 54.85], [-121.87, 54.8], [-121.75, 54.5], [-121.85, 54.25], [-121.75, 54.0], [-121.97, 53.47], [-122.32, 53.32], [-122.47, 52.97], [-123.0, 52.75], [-123.25, 52.85], [-123.5, 52.75], [-123.75, 52.85], [-124.0, 52.75], [-124.25, 52.85], [-124.32, 52.82], [-124.47, 52.47], [-125.0, 52.25], [-125.53, 52.47], [-125.68, 52.82], [-125.75, 52.85], [-126.0, 52.75], [-126.53, 52.97], [-126.75, 53.5], [-126.53, 54.03], [-126.18, 54.18], [-126.03, 54.53], [-125.5, 54.75]]]]}, "2015-09-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-125.5, 54.75], [-125.25, 54.65], [-125.18, 54.68], [-125.03, 55.03], [-124.5, 55.25], [-124.25, 55.15], [-124.18, 55.18], [-124.03, 55.53], [-123.5, 55.75], [-123.25, 55.65], [-123.18, 55.68], [-123.15, 55.75], [-123.18, 55.82], [-123.53, 55.97], [-123.75, 56.5], [-123.53, 57.03], [-123.18, 57.18], [-123.03, 57.53], [-122.5, 57.75], [-122.25, 57.65], [-122.0, 57.75], [-121.75, 57.65], [-121.5, 57.75], [-120.97, 57.53], [-120.82, 57.18], [-120.75, 57.15], [-120.5, 57.25], [-119.97, 57.03], [-119.82, 56.68], [-119.75, 56.65], [-119.5, 56.75], [-119.25, 56.65], [-119.0, 56.75], [-118.75, 56.65], [-118.5, 56.75], [-118.25, 56.65], [-118.0, 56.75], [-117.75, 56.65], [-117.5, 56.75], [-116.97, 56.53], [-116.75, 56.0], [-116.97, 55.47], [-117.5, 55.25], [-117.75, 55.35], [-117.82, 55.32], [-117.85, 55.25], [-117.75, 55.0], [-117.97, 54.47], [-118.32, 54.32], [-118.47, 53.97], [-119.0, 53.75], [-119.25, 53.85], [-119.5, 53.75], [-119.75, 53.85], [-120.0, 53.75], [-120.53, 53.97], [-120.68, 54.32], [-120.75, 54.35], [-121.0, 54.25], [-121.53, 54.47], [-121.68, 54.82], [-121.75, 54.85], [-121.87, 54.8], [-121.75, 54.5], [-121.85, 54.25], [-121.75, 54.0], [-121.97, 53.47], [-122.32, 53.32], [-122.47, 52.97], [-123.0, 52.75], [-123.25, 52.85], [-123.5, 52.75], [-123.75, 52.85], [-124.0, 52.75], [-124.25, 52.85], [-124.32, 52.82], [-124.47, 52.47], [-125.0, 52.25], [-125.53, 52.47], [-125.68, 52.82], [-125.75, 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over entire duration", "value": 6.442652561463423}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [12.501458112804642, 14.033594304401902, 12.966485313016335]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [14.151610322465956, 15.87247511871891, 14.97474051544367]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [5.255540971409632, 7.350130377132958, 6.722286335847672]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [6.181486729371727, 8.343748831799985, 8.128453180639326]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.5161378585967995, 2.0458583228584417, 1.7930336835724034]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.7036005296154593, 2.3871670768108326, 2.0175186516181816]}}