{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:09:06.171328", "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": "2017-Sep-29_to_2017-Oct-01_255.5_59.0"}, "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": 2017090002881}, "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 2017"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "October 01 2017"}, "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": 143128.62674935913}, "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.E.North-America", "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": 59.0}, "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": 255.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "255.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 250.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 257.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 55.75}, "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": {"2017-09-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-110.03, 58.97], [-110.25, 59.5], [-110.03, 60.03], [-109.5, 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[-107.75, 55.35], [-108.0, 55.25], [-108.53, 55.47], [-108.68, 55.82], [-109.03, 55.97], [-109.25, 56.5], [-109.03, 57.03], [-108.68, 57.18], [-108.65, 57.25], [-108.75, 57.5], [-108.65, 57.75], [-108.75, 58.0], [-108.65, 58.25], [-108.68, 58.32], [-109.03, 58.47], [-109.18, 58.82], [-109.25, 58.85], [-109.5, 58.75], [-110.03, 58.97]]]]}, "2017-09-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-110.03, 58.97], [-110.25, 59.5], [-110.03, 60.03], [-109.5, 60.25], [-109.25, 60.15], [-109.18, 60.18], [-109.15, 60.25], [-109.25, 60.5], [-109.03, 61.03], [-108.68, 61.18], [-108.53, 61.53], [-108.0, 61.75], [-107.75, 61.65], [-107.5, 61.75], [-107.25, 61.65], [-107.0, 61.75], [-106.75, 61.65], [-106.5, 61.75], [-106.25, 61.65], [-106.0, 61.75], [-105.75, 61.65], [-105.5, 61.75], [-105.25, 61.65], [-105.0, 61.75], [-104.75, 61.65], [-104.5, 61.75], [-103.97, 61.53], [-103.82, 61.18], [-103.47, 61.03], [-103.32, 60.68], [-102.97, 60.53], [-102.82, 60.18], [-102.75, 60.15], 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"description": "The daily evolution of mean t2m anomalies.", "value": [6.967743346745245, 8.293419100092956, 6.794260166664182]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [9.184830075490595, 11.076877660730872, 8.752030713205272]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.7278691372369155, 2.095732326633486, 1.7380556729035914]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.2794720242047815, 2.6057684479346754, 2.1531283018053586]}}