{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:08:03.642811", "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": "2017-May-08_to_2017-May-10_21.5_-16.0"}, "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": 2017050001490}, "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 08 2017"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "May 10 2017"}, "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": 71382.76315883009}, "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", "Zambia"]}, "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": -16.0}, "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": 21.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "21.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 18.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 23.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -17.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -14.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2017-05-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[18.25, -15.5], [18.47, -14.97], [18.82, -14.82], [18.97, -14.47], [19.5, -14.25], [20.03, -14.47], [20.18, -14.82], [20.25, -14.85], [20.5, -14.75], [21.0, -14.96], [21.32, -14.82], [21.47, -14.47], [22.0, -14.25], [22.25, -14.35], [22.5, -14.25], [22.75, -14.35], [23.0, -14.25], [23.53, -14.47], [23.75, -15.0], [23.65, -15.25], [23.75, -15.5], [23.53, -16.03], [23.18, -16.18], [23.03, -16.53], [22.5, -16.75], [22.25, -16.65], [22.18, -16.68], [22.03, -17.03], [21.68, -17.18], [21.53, -17.53], [21.0, -17.75], [20.47, -17.53], [20.32, -17.18], [20.25, -17.15], [20.0, -17.25], [19.47, -17.03], [19.32, -16.68], [18.97, -16.53], [18.82, -16.18], [18.47, -16.03], [18.25, -15.5]]]]}, "2017-05-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[18.25, -15.5], [18.47, -14.97], [18.82, -14.82], [18.97, -14.47], [19.5, -14.25], [20.03, -14.47], [20.18, -14.82], [20.25, -14.85], [20.5, -14.75], [21.0, -14.96], [21.32, -14.82], [21.47, -14.47], [22.0, -14.25], [22.25, -14.35], [22.5, -14.25], [22.75, -14.35], [23.0, -14.25], [23.53, -14.47], [23.75, -15.0], [23.65, -15.25], [23.75, -15.5], [23.53, -16.03], [23.18, -16.18], [23.03, -16.53], [22.5, -16.75], [22.25, -16.65], [22.18, -16.68], [22.03, -17.03], [21.68, -17.18], [21.53, -17.53], [21.0, -17.75], [20.47, -17.53], [20.32, -17.18], [20.25, -17.15], [20.0, -17.25], [19.47, -17.03], [19.32, -16.68], [18.97, -16.53], [18.82, -16.18], [18.47, -16.03], [18.25, -15.5]]]]}, "2017-05-10T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[18.25, -15.5], [18.47, -14.97], [18.82, -14.82], [18.97, -14.47], [19.5, -14.25], [20.03, -14.47], [20.18, -14.82], [20.25, -14.85], [20.5, -14.75], [21.0, -14.96], [21.32, -14.82], [21.47, -14.47], [22.0, -14.25], [22.25, -14.35], [22.5, -14.25], [22.75, -14.35], [23.0, -14.25], [23.53, -14.47], [23.75, -15.0], [23.65, -15.25], [23.75, -15.5], [23.53, -16.03], [23.18, -16.18], [23.03, -16.53], [22.5, -16.75], [22.25, -16.65], [22.18, -16.68], [22.03, -17.03], [21.68, -17.18], [21.53, -17.53], [21.0, -17.75], [20.47, -17.53], [20.32, -17.18], [20.25, -17.15], [20.0, -17.25], [19.47, -17.03], [19.32, -16.68], [18.97, -16.53], [18.82, -16.18], [18.47, -16.03], [18.25, -15.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 3.5105742447944976}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 2.6285602021884293}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [24.407941184869685, 24.05850873439624, 23.560098626027298]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [25.30014155613759, 24.702321605604652, 24.244572543182528]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.8817759391251108, 2.670866766125833, 2.3330379013143436]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [3.5105742447944976, 3.260966487296855, 2.754051802523577]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [2.0450925827910726, 1.8885810030258456, 1.6453303365309175]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.430625440279689, 2.133730044404991, 1.8848943847071966]}}