{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:03:57.045628", "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-30_to_2015-Oct-02_250.0_57.5"}, "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": 2015090002808}, "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 30 2015"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "October 02 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": 71168.23531412327}, "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": 57.5}, "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": 250.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "250.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 246.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 252.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 54.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 59.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2015-09-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-113.53, 56.47], [-113.75, 57.0], [-113.53, 57.53], [-113.0, 57.75], [-112.75, 57.65], [-112.5, 57.75], [-112.25, 57.65], [-112.0, 57.75], [-111.75, 57.65], [-111.68, 57.68], [-111.53, 58.03], [-111.18, 58.18], [-111.03, 58.53], [-110.68, 58.68], [-110.53, 59.03], [-110.18, 59.18], [-110.03, 59.53], [-109.5, 59.75], [-109.25, 59.65], [-109.0, 59.75], [-108.47, 59.53], [-108.25, 59.0], [-108.35, 58.75], [-108.25, 58.5], [-108.35, 58.25], [-108.25, 58.0], [-108.47, 57.47], [-108.82, 57.32], [-108.85, 57.25], [-108.82, 57.18], [-108.47, 57.03], [-108.25, 56.5], [-108.37, 56.2], [-107.97, 56.03], [-107.82, 55.68], [-107.47, 55.53], [-107.25, 55.0], [-107.47, 54.47], [-108.0, 54.25], [-108.5, 54.46], [-108.82, 54.32], [-108.97, 53.97], [-109.5, 53.75], [-110.03, 53.97], [-110.18, 54.32], [-110.53, 54.47], [-110.68, 54.82], [-110.75, 54.85], [-111.0, 54.75], [-111.53, 54.97], [-111.75, 55.5], [-111.65, 55.75], [-111.68, 55.82], [-111.75, 55.85], [-112.0, 55.75], [-112.53, 55.97], [-112.68, 56.32], [-112.75, 56.35], [-113.0, 56.25], [-113.53, 56.47]]]]}, "2015-10-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-113.53, 56.47], [-113.75, 57.0], [-113.53, 57.53], [-113.0, 57.75], [-112.75, 57.65], [-112.5, 57.75], [-112.25, 57.65], [-112.0, 57.75], [-111.75, 57.65], [-111.68, 57.68], [-111.53, 58.03], [-111.18, 58.18], [-111.03, 58.53], [-110.68, 58.68], [-110.53, 59.03], [-110.18, 59.18], [-110.03, 59.53], [-109.5, 59.75], [-109.25, 59.65], [-109.0, 59.75], [-108.47, 59.53], [-108.25, 59.0], [-108.35, 58.75], [-108.25, 58.5], [-108.35, 58.25], [-108.25, 58.0], [-108.47, 57.47], [-108.82, 57.32], [-108.85, 57.25], [-108.82, 57.18], [-108.47, 57.03], [-108.25, 56.5], [-108.37, 56.2], [-107.97, 56.03], [-107.82, 55.68], [-107.47, 55.53], [-107.25, 55.0], [-107.47, 54.47], [-108.0, 54.25], [-108.5, 54.46], [-108.82, 54.32], [-108.97, 53.97], [-109.5, 53.75], [-110.03, 53.97], [-110.18, 54.32], [-110.53, 54.47], [-110.68, 54.82], [-110.75, 54.85], [-111.0, 54.75], [-111.53, 54.97], [-111.75, 55.5], [-111.65, 55.75], [-111.68, 55.82], [-111.75, 55.85], [-112.0, 55.75], [-112.53, 55.97], [-112.68, 56.32], [-112.75, 56.35], [-113.0, 56.25], [-113.53, 56.47]]]]}, "2015-10-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-113.53, 56.47], [-113.75, 57.0], [-113.53, 57.53], [-113.0, 57.75], [-112.75, 57.65], [-112.5, 57.75], [-112.25, 57.65], [-112.0, 57.75], [-111.75, 57.65], [-111.68, 57.68], [-111.53, 58.03], [-111.18, 58.18], [-111.03, 58.53], [-110.68, 58.68], [-110.53, 59.03], [-110.18, 59.18], [-110.03, 59.53], [-109.5, 59.75], [-109.25, 59.65], [-109.0, 59.75], [-108.47, 59.53], [-108.25, 59.0], [-108.35, 58.75], [-108.25, 58.5], [-108.35, 58.25], [-108.25, 58.0], [-108.47, 57.47], [-108.82, 57.32], [-108.85, 57.25], [-108.82, 57.18], [-108.47, 57.03], [-108.25, 56.5], [-108.37, 56.2], [-107.97, 56.03], [-107.82, 55.68], [-107.47, 55.53], [-107.25, 55.0], [-107.47, 54.47], [-108.0, 54.25], [-108.5, 54.46], [-108.82, 54.32], [-108.97, 53.97], [-109.5, 53.75], [-110.03, 53.97], [-110.18, 54.32], [-110.53, 54.47], [-110.68, 54.82], [-110.75, 54.85], [-111.0, 54.75], [-111.53, 54.97], [-111.75, 55.5], [-111.65, 55.75], [-111.68, 55.82], [-111.75, 55.85], [-112.0, 55.75], [-112.53, 55.97], [-112.68, 56.32], [-112.75, 56.35], [-113.0, 56.25], [-113.53, 56.47]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 11.885270566117754}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 8.030719379674604}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [12.56289897154204, 15.737441059023809, 13.192425914056116]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [13.820987868180794, 17.432628807942024, 14.63114634409709]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [6.408536787793175, 9.982597710156877, 7.701023641073758]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [7.5457988853732445, 11.885270566117754, 9.013904995631208]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4886599028538667, 2.2972834208042467, 1.7105063123743112]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.6962765182361872, 2.564835479135902, 1.9612889499631134]}}