{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:18:20.150149", "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": "2018-Oct-07_to_2018-Oct-09_347.5_23.0"}, "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": 2018100001548}, "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 07 2018"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "October 09 2018"}, "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": 54304.86470954866}, "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": ["Mauritania", "Morocco"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Sahara"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Africa"]}, "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": 23.0}, "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": 347.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "347.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 346.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 348.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 20.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 24.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2018-10-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-14.15, 22.25], [-14.25, 22.5], [-14.03, 23.03], [-13.68, 23.18], [-13.65, 23.25], [-13.75, 23.5], [-13.53, 24.03], [-13.18, 24.18], [-13.03, 24.53], [-12.5, 24.75], [-11.97, 24.53], [-11.82, 24.18], [-11.47, 24.03], [-11.25, 23.5], [-11.35, 23.25], [-11.25, 23.0], [-11.35, 22.75], [-11.25, 22.5], [-11.46, 22.0], [-11.25, 21.5], [-11.47, 20.97], [-11.82, 20.82], [-11.97, 20.47], [-12.5, 20.25], [-12.75, 20.35], [-13.0, 20.25], [-13.53, 20.47], [-13.68, 20.82], [-14.03, 20.97], [-14.25, 21.5], [-14.15, 21.75], [-14.25, 22.0], [-14.15, 22.25]]]]}, "2018-10-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-14.15, 22.25], [-14.25, 22.5], [-14.03, 23.03], [-13.68, 23.18], [-13.65, 23.25], [-13.75, 23.5], [-13.53, 24.03], [-13.18, 24.18], [-13.03, 24.53], [-12.5, 24.75], [-11.97, 24.53], [-11.82, 24.18], [-11.47, 24.03], [-11.25, 23.5], [-11.35, 23.25], [-11.25, 23.0], [-11.35, 22.75], [-11.25, 22.5], [-11.46, 22.0], [-11.25, 21.5], [-11.47, 20.97], [-11.82, 20.82], [-11.97, 20.47], [-12.5, 20.25], [-12.75, 20.35], [-13.0, 20.25], [-13.53, 20.47], [-13.68, 20.82], [-14.03, 20.97], [-14.25, 21.5], [-14.15, 21.75], [-14.25, 22.0], [-14.15, 22.25]]]]}, "2018-10-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-14.15, 22.25], [-14.25, 22.5], [-14.03, 23.03], [-13.68, 23.18], [-13.65, 23.25], [-13.75, 23.5], [-13.53, 24.03], [-13.18, 24.18], [-13.03, 24.53], [-12.5, 24.75], [-11.97, 24.53], [-11.82, 24.18], [-11.47, 24.03], [-11.25, 23.5], [-11.35, 23.25], [-11.25, 23.0], [-11.35, 22.75], [-11.25, 22.5], [-11.46, 22.0], [-11.25, 21.5], [-11.47, 20.97], [-11.82, 20.82], [-11.97, 20.47], [-12.5, 20.25], [-12.75, 20.35], [-13.0, 20.25], [-13.53, 20.47], [-13.68, 20.82], [-14.03, 20.97], [-14.25, 21.5], [-14.15, 21.75], [-14.25, 22.0], [-14.15, 22.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 4.915572849782222}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 3.533624813896041}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [33.020211885986555, 33.20202188095902, 33.13341134666382]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [34.60067681401671, 34.528952009820046, 34.207034644003556]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [3.22444407484464, 3.6382772197255626, 3.7381531471179206]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [3.6075165536260556, 4.915572849782222, 4.744879219674431]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.2820863344695959, 1.3974126628209458, 1.4119006114473693]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.3980044116196237, 1.672303888966701, 1.6238718319614238]}}