{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:20:28.123163", "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-Jun-14_to_2020-Jun-17_11.5_8.0"}, "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": 2020060002014}, "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": "June 14 2020"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 17 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": 55178.08545543555}, "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": ["Cameroon", "Nigeria"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Central-Africa", "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": 8.0}, "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": 11.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "11.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 9.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 12.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 5.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 8.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2020-06-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[9.82, 8.18], [9.97, 8.53], [10.5, 8.75], [10.75, 8.65], [11.0, 8.75], [11.25, 8.65], [11.5, 8.75], [12.03, 8.53], [12.18, 8.18], [12.25, 8.15], [12.5, 8.25], [13.03, 8.03], [13.25, 7.5], [13.15, 7.25], [13.25, 7.0], [13.03, 6.47], [12.5, 6.25], [12.25, 6.35], [12.18, 6.32], [12.15, 6.25], [12.25, 6.0], [12.03, 5.47], [11.5, 5.25], [10.97, 5.47], [10.75, 6.0], [10.85, 6.25], [10.75, 6.5], [10.88, 6.8], [10.75, 6.85], [10.68, 6.82], [10.53, 6.47], [10.0, 6.25], [9.75, 6.35], [9.5, 6.25], [8.97, 6.47], [8.75, 7.0], [8.97, 7.53], [9.32, 7.68], [9.47, 8.03], [9.82, 8.18]]]]}, "2020-06-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[8.97, 8.03], [9.5, 8.25], [9.75, 8.15], [9.82, 8.18], [9.97, 8.53], [10.32, 8.68], [10.47, 9.03], [11.0, 9.25], [11.53, 9.03], [11.68, 8.68], [12.03, 8.53], [12.18, 8.18], [12.25, 8.15], [12.5, 8.25], [13.03, 8.03], [13.25, 7.5], [13.15, 7.25], [13.25, 7.0], [13.03, 6.47], [12.5, 6.25], [12.25, 6.35], [12.18, 6.32], [12.15, 6.25], [12.25, 6.0], [12.03, 5.47], [11.5, 5.25], [10.97, 5.47], [10.75, 6.0], [10.85, 6.25], [10.8, 6.38], [10.5, 6.25], [10.25, 6.35], [10.0, 6.25], [9.75, 6.35], [9.5, 6.25], [8.97, 6.47], [8.75, 7.0], [8.85, 7.25], [8.75, 7.5], [8.97, 8.03]]]]}, "2020-06-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[8.97, 8.03], [9.5, 8.25], [9.75, 8.15], [9.82, 8.18], [9.97, 8.53], [10.32, 8.68], [10.47, 9.03], [11.0, 9.25], [11.53, 9.03], [11.68, 8.68], [12.03, 8.53], [12.18, 8.18], [12.25, 8.15], [12.5, 8.25], [13.03, 8.03], [13.25, 7.5], [13.15, 7.25], [13.25, 7.0], [13.03, 6.47], [12.5, 6.25], [12.25, 6.35], [12.18, 6.32], [12.15, 6.25], [12.25, 6.0], [12.03, 5.47], [11.5, 5.25], [10.97, 5.47], [10.75, 6.0], [10.85, 6.25], [10.8, 6.38], [10.5, 6.25], [10.25, 6.35], [10.0, 6.25], [9.75, 6.35], [9.5, 6.25], [8.97, 6.47], [8.75, 7.0], [8.85, 7.25], [8.75, 7.5], [8.97, 8.03]]]]}, "2020-06-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[8.75, 7.5], [8.97, 8.03], [9.5, 8.25], [9.75, 8.15], [9.82, 8.18], [9.97, 8.53], [10.32, 8.68], [10.47, 9.03], [11.0, 9.25], [11.53, 9.03], [11.68, 8.68], [12.03, 8.53], [12.18, 8.18], [12.53, 8.03], [12.75, 7.5], [12.53, 6.97], [12.0, 6.75], [11.75, 6.85], [11.5, 6.75], [11.25, 6.85], [11.18, 6.82], [11.03, 6.47], [10.5, 6.25], [10.25, 6.35], [10.0, 6.25], [9.47, 6.47], [9.32, 6.82], [8.97, 6.97], [8.75, 7.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 2.961642413278298}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.5885462087925353}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [25.525901137619314, 26.088587825105776, 26.4307912473256, 27.03685858694206]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [29.18685224103865, 29.27910551630839, 30.363222745898554, 29.343029045628953]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.3124472240564387, 1.5404407823749042, 1.931075253780386, 1.4920345118573266]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.815084051821259, 1.9500536993770652, 2.961642413278298, 2.00425168168141]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.5645334198435952, 1.8422082716708696, 2.2228681797141254, 1.6648220514761576]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.0443553562655166, 2.7556213009977863, 3.017435440167998, 2.0670162852204297]}}