{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:21:38.460538", "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": "2020-Sep-30_to_2020-Oct-03_344.0_16.5"}, "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": 2020090002671}, "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 2020"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "October 03 2020"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 4}, "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": 100208.82773873772}, "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", "Senegal"]}, "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": 16.5}, "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": 344.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "344.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 343.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 350.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 16.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 19.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2020-09-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-14.75, 17.5], [-14.53, 18.03], [-14.0, 18.25], [-13.5, 18.04], [-13.18, 18.18], [-13.03, 18.53], [-12.68, 18.68], [-12.65, 18.75], [-12.75, 19.0], [-12.53, 19.53], [-12.0, 19.75], [-11.75, 19.65], [-11.5, 19.75], [-10.97, 19.53], [-10.82, 19.18], [-10.75, 19.15], [-10.5, 19.25], [-9.97, 19.03], [-9.82, 18.68], [-9.75, 18.65], [-9.5, 18.75], [-8.97, 18.53], [-8.75, 18.0], [-8.97, 17.47], [-9.32, 17.32], [-9.47, 16.97], [-9.82, 16.82], [-9.97, 16.47], [-10.5, 16.25], [-10.75, 16.35], [-11.0, 16.25], [-11.25, 16.35], [-11.5, 16.25], [-11.75, 16.35], [-12.0, 16.25], [-12.25, 16.35], [-12.5, 16.25], [-12.75, 16.35], [-13.0, 16.25], [-13.25, 16.35], [-13.32, 16.32], [-13.47, 15.97], [-14.0, 15.75], [-14.25, 15.85], [-14.5, 15.75], [-15.03, 15.97], [-15.25, 16.5], [-15.03, 17.03], [-14.68, 17.18], [-14.65, 17.25], [-14.75, 17.5]]]]}, "2020-10-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-15.5, 17.75], [-15.25, 17.65], [-15.0, 17.75], [-14.7, 17.62], [-14.53, 18.03], [-14.0, 18.25], [-13.5, 18.04], [-13.18, 18.18], [-13.03, 18.53], [-12.68, 18.68], [-12.65, 18.75], [-12.75, 19.0], [-12.53, 19.53], [-12.0, 19.75], [-11.75, 19.65], [-11.5, 19.75], [-10.97, 19.53], [-10.82, 19.18], [-10.75, 19.15], [-10.5, 19.25], [-9.97, 19.03], [-9.82, 18.68], [-9.75, 18.65], [-9.5, 18.75], [-8.97, 18.53], [-8.75, 18.0], [-8.97, 17.47], [-9.32, 17.32], [-9.47, 16.97], [-9.82, 16.82], [-9.97, 16.47], [-10.5, 16.25], [-10.75, 16.35], [-11.0, 16.25], [-11.25, 16.35], [-11.5, 16.25], [-11.75, 16.35], [-12.0, 16.25], [-12.25, 16.35], [-12.5, 16.25], [-12.75, 16.35], [-13.0, 16.25], [-13.25, 16.35], [-13.32, 16.32], [-13.47, 15.97], [-14.0, 15.75], [-14.25, 15.85], [-14.5, 15.75], [-15.0, 15.96], [-15.5, 15.75], [-15.75, 15.85], [-16.0, 15.75], [-16.53, 15.97], [-16.75, 16.5], [-16.53, 17.03], [-16.18, 17.18], [-16.03, 17.53], [-15.5, 17.75]]]]}, "2020-10-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-15.5, 17.75], [-15.25, 17.65], [-15.0, 17.75], [-14.7, 17.62], [-14.53, 18.03], [-14.0, 18.25], [-13.5, 18.04], [-13.18, 18.18], [-13.03, 18.53], [-12.68, 18.68], [-12.65, 18.75], [-12.75, 19.0], [-12.53, 19.53], [-12.0, 19.75], [-11.75, 19.65], [-11.5, 19.75], [-10.97, 19.53], [-10.82, 19.18], [-10.75, 19.15], [-10.5, 19.25], [-9.97, 19.03], [-9.82, 18.68], [-9.75, 18.65], [-9.5, 18.75], [-8.97, 18.53], [-8.75, 18.0], [-8.97, 17.47], [-9.32, 17.32], [-9.47, 16.97], [-9.82, 16.82], [-9.97, 16.47], [-10.5, 16.25], [-10.75, 16.35], [-11.0, 16.25], [-11.25, 16.35], [-11.5, 16.25], [-11.75, 16.35], [-12.0, 16.25], [-12.25, 16.35], [-12.5, 16.25], [-12.75, 16.35], [-13.0, 16.25], [-13.25, 16.35], [-13.32, 16.32], [-13.47, 15.97], [-14.0, 15.75], [-14.25, 15.85], [-14.5, 15.75], [-15.0, 15.96], [-15.5, 15.75], [-15.75, 15.85], [-16.0, 15.75], [-16.53, 15.97], [-16.75, 16.5], [-16.53, 17.03], [-16.18, 17.18], [-16.03, 17.53], [-15.5, 17.75]]]]}, "2020-10-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-15.5, 17.75], [-15.25, 17.65], [-15.0, 17.75], [-14.47, 17.53], [-14.25, 17.0], [-14.47, 16.47], [-14.82, 16.32], [-14.97, 15.97], [-15.5, 15.75], [-15.75, 15.85], [-16.0, 15.75], [-16.53, 15.97], [-16.75, 16.5], [-16.53, 17.03], [-16.18, 17.18], [-16.03, 17.53], [-15.5, 17.75]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 4.522736539821949}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 2.877165367563645}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [35.01328521056263, 35.36099845844376, 35.649327709065346, 34.38002850418138]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [36.24842223979448, 36.591771832463905, 37.609445364012856, 35.021963942583454]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.410125735727788, 2.9185517274502804, 3.236676083595293, 2.9723374610271662]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [2.8753315860901125, 3.3519038183166003, 4.522736539821949, 3.4932606612226778]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.3133254747012149, 1.5971764821863212, 1.7564858551695524, 1.6911430135972079]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.522855841621729, 1.9084170668329201, 2.8433370989875995, 1.9812632200638505]}}