{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:19:34.227582", "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-Apr-06_to_2020-Apr-09_17.5_-12.5"}, "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": 2020040001340}, "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": "April 06 2020"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "April 09 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": 63305.47678665443}, "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": ["Angola"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["W.Southern-Africa"]}, "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": -12.5}, "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": 17.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "17.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 17.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 21.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -14.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -11.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2020-04-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[17.5, -11.75], [18.03, -11.97], [18.25, -12.5], [18.03, -13.03], [17.5, -13.25], [16.97, -13.03], [16.75, -12.5], [16.97, -11.97], [17.5, -11.75]]]]}, "2020-04-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[16.97, -13.03], [16.75, -12.5], [16.97, -11.97], [17.5, -11.75], [17.75, -11.85], [18.0, -11.75], [18.25, -11.85], [18.5, -11.75], [19.03, -11.97], [19.18, -12.32], [19.25, -12.35], [19.32, -12.32], [19.47, -11.97], [19.82, -11.82], [19.97, -11.47], [20.5, -11.25], [20.75, -11.35], [20.82, -11.32], [20.97, -10.97], [21.5, -10.75], [22.03, -10.97], [22.25, -11.5], [22.15, -11.75], [22.25, -12.0], [22.15, -12.25], [22.25, -12.5], [22.15, -12.75], [22.25, -13.0], [22.15, -13.25], [22.25, -13.5], [22.15, -13.75], [22.25, -14.0], [22.03, -14.53], [21.5, -14.75], [20.97, -14.53], [20.82, -14.18], [20.47, -14.03], [20.25, -13.5], [20.03, -14.03], [19.5, -14.25], [19.0, -14.04], [18.5, -14.25], [17.97, -14.03], [17.75, -13.5], [17.85, -13.25], [17.82, -13.18], [17.75, -13.15], [17.5, -13.25], [16.97, -13.03]], [[20.35, -13.25], [20.32, -13.18], [20.25, -13.15], [20.18, -13.18], [20.15, -13.25], [20.25, -13.5], [20.35, -13.25]]]]}, "2020-04-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[16.97, -13.03], [16.75, -12.5], [16.97, -11.97], [17.5, -11.75], [17.75, -11.85], [18.0, -11.75], [18.25, -11.85], [18.5, -11.75], [19.03, -11.97], [19.18, -12.32], [19.25, -12.35], [19.32, -12.32], [19.47, -11.97], [19.82, -11.82], [19.97, -11.47], [20.5, -11.25], [20.75, -11.35], [20.82, -11.32], [20.97, -10.97], [21.5, -10.75], [22.03, -10.97], [22.25, -11.5], [22.15, -11.75], [22.25, -12.0], [22.15, -12.25], [22.25, -12.5], [22.15, -12.75], [22.25, -13.0], [22.15, -13.25], [22.25, -13.5], [22.15, -13.75], [22.25, -14.0], [22.03, -14.53], [21.5, -14.75], [20.97, -14.53], [20.82, -14.18], [20.47, -14.03], [20.25, -13.5], [20.03, -14.03], [19.5, -14.25], [19.0, -14.04], [18.5, -14.25], [17.97, -14.03], [17.75, -13.5], [17.85, -13.25], [17.82, -13.18], [17.75, -13.15], [17.5, -13.25], [16.97, -13.03]], [[20.35, -13.25], [20.32, -13.18], [20.25, -13.15], [20.18, -13.18], [20.15, -13.25], [20.25, -13.5], [20.35, -13.25]]]]}, "2020-04-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[16.97, -13.03], [16.75, -12.5], [16.97, -11.97], [17.5, -11.75], [17.75, -11.85], [18.0, -11.75], [18.25, -11.85], [18.5, -11.75], [19.03, -11.97], [19.18, -12.32], [19.25, -12.35], [19.32, -12.32], [19.47, -11.97], [19.82, -11.82], [19.97, -11.47], [20.5, -11.25], [20.75, -11.35], [20.82, -11.32], [20.97, -10.97], [21.5, -10.75], [22.03, -10.97], [22.25, -11.5], [22.15, -11.75], [22.25, -12.0], [22.15, -12.25], [22.25, -12.5], [22.15, -12.75], [22.25, -13.0], [22.15, -13.25], [22.25, -13.5], [22.15, -13.75], [22.25, -14.0], [22.03, -14.53], [21.5, -14.75], [20.97, -14.53], [20.82, -14.18], [20.47, -14.03], [20.25, -13.5], [20.03, -14.03], [19.5, -14.25], [19.0, -14.04], [18.5, -14.25], [17.97, -14.03], [17.75, -13.5], [17.85, -13.25], [17.82, -13.18], [17.75, -13.15], [17.5, -13.25], [16.97, -13.03]], [[20.35, -13.25], [20.32, -13.18], [20.25, -13.15], [20.18, -13.18], [20.15, -13.25], [20.25, -13.5], [20.35, -13.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 2.318701146476826}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.5195681856044896}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [21.82543986615832, 22.27961795965132, 22.446565675101056, 22.3677958529222]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [21.82543986615832, 23.37240440472806, 23.627362402577205, 23.299329708465848]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.5721508027677373, 1.4390916557074136, 1.601103893381857, 1.5160050735735673]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.5721508027677373, 1.6630962445349269, 2.318701146476826, 1.978347359772215]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.7272972223147105, 1.520893643044721, 1.7086503261378607, 1.66101899574512]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.7272972223147105, 1.8171094043287952, 2.3386476090433206, 2.2164093107845897]}}