{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:47:29.134540", "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": "2011-May-03_to_2011-May-06_346.0_13.5"}, "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": 2011050001698}, "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": "May 03 2011"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "May 06 2011"}, "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": 81064.0534379705}, "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": ["Gambia", "Guinea-Bissau", "Senegal"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Sahara", "Western-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": 13.5}, "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": 346.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "346.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 343.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 347.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 12.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 15.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2011-05-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-16.53, 11.97], [-16.75, 12.5], [-16.53, 13.03], [-16.0, 13.25], [-15.75, 13.15], [-15.5, 13.25], [-15.25, 13.15], [-15.0, 13.25], [-14.47, 13.03], [-14.25, 12.5], [-14.47, 11.97], [-15.0, 11.75], [-15.25, 11.85], [-15.5, 11.75], [-15.75, 11.85], [-16.0, 11.75], [-16.53, 11.97]]]]}, "2011-05-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-16.75, 13.5], [-16.53, 14.03], [-16.18, 14.18], [-16.03, 14.53], [-15.5, 14.75], [-15.25, 14.65], [-15.18, 14.68], [-15.03, 15.03], [-14.5, 15.25], [-14.25, 15.15], [-14.18, 15.18], [-14.03, 15.53], [-13.5, 15.75], [-13.25, 15.65], [-13.0, 15.75], [-12.47, 15.53], [-12.32, 15.18], [-11.97, 15.03], [-11.75, 14.5], [-11.85, 14.25], [-11.75, 14.0], [-11.97, 13.47], [-12.32, 13.32], [-12.47, 12.97], [-13.0, 12.75], [-13.25, 12.85], [-13.5, 12.75], [-13.75, 12.85], [-14.0, 12.75], [-14.25, 12.85], [-14.37, 12.8], [-14.25, 12.5], [-14.47, 11.97], [-15.0, 11.75], [-15.25, 11.85], [-15.5, 11.75], [-15.75, 11.85], [-16.0, 11.75], [-16.25, 11.85], [-16.5, 11.75], [-17.03, 11.97], [-17.25, 12.5], [-17.03, 13.03], [-16.68, 13.18], [-16.65, 13.25], [-16.75, 13.5]]]]}, "2011-05-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-16.75, 13.5], [-16.53, 14.03], [-16.18, 14.18], [-16.03, 14.53], [-15.5, 14.75], [-15.25, 14.65], [-15.18, 14.68], [-15.03, 15.03], [-14.5, 15.25], [-14.25, 15.15], [-14.18, 15.18], [-14.03, 15.53], [-13.5, 15.75], [-13.25, 15.65], [-13.0, 15.75], [-12.47, 15.53], [-12.32, 15.18], [-11.97, 15.03], [-11.75, 14.5], [-11.85, 14.25], [-11.75, 14.0], [-11.97, 13.47], [-12.32, 13.32], [-12.47, 12.97], [-13.0, 12.75], [-13.25, 12.85], [-13.5, 12.75], [-13.75, 12.85], [-14.0, 12.75], [-14.25, 12.85], [-14.37, 12.8], [-14.25, 12.5], [-14.47, 11.97], [-15.0, 11.75], [-15.25, 11.85], [-15.5, 11.75], [-15.75, 11.85], [-16.0, 11.75], [-16.25, 11.85], [-16.5, 11.75], [-17.03, 11.97], [-17.25, 12.5], [-17.03, 13.03], [-16.68, 13.18], [-16.65, 13.25], [-16.75, 13.5]]]]}, "2011-05-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-16.75, 13.5], [-16.53, 14.03], [-16.18, 14.18], [-16.03, 14.53], [-15.5, 14.75], [-15.25, 14.65], [-15.18, 14.68], [-15.03, 15.03], [-14.5, 15.25], [-14.25, 15.15], [-14.18, 15.18], [-14.03, 15.53], [-13.5, 15.75], [-13.25, 15.65], [-13.0, 15.75], [-12.47, 15.53], [-12.32, 15.18], [-11.97, 15.03], [-11.75, 14.5], [-11.85, 14.25], [-11.75, 14.0], [-11.97, 13.47], [-12.32, 13.32], [-12.47, 12.97], [-13.0, 12.75], [-13.25, 12.85], [-13.5, 12.75], [-13.75, 12.85], [-14.0, 12.75], [-14.25, 12.85], [-14.5, 12.75], [-14.75, 12.85], [-14.82, 12.82], [-14.97, 12.47], [-15.5, 12.25], [-15.75, 12.35], [-15.82, 12.32], [-15.97, 11.97], [-16.5, 11.75], [-17.03, 11.97], [-17.25, 12.5], [-17.03, 13.03], [-16.68, 13.18], [-16.65, 13.25], [-16.75, 13.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 3.892035943081737}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 2.711531282130624}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [32.08362687148508, 35.04291922985965, 35.51641744032702, 35.869732713855]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [32.959627739143855, 37.58554257153395, 37.957020960948626, 38.718467250612036]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.906376526003669, 2.4988218028439424, 2.879301092880014, 2.8627327537509473]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [2.2295979252900793, 3.098593474822735, 3.892035943081737, 3.708721434534482]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.7104237590875553, 1.7479297595316188, 2.026354063903812, 2.0008394980561666]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.885170467233376, 2.409244835214066, 2.5175630988914435, 2.6011324159996]}}