{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:25:43.416891", "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": "2021-May-01_to_2021-May-05_24.0_5.0"}, "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": 2021050001304}, "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 01 2021"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "May 05 2021"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 5}, "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": 55495.876670822196}, "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": ["Central African Republic", "Congo DRC"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Central-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": 5.0}, "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": 24.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "24.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 23.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 26.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 2.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 5.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2021-05-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[24.0, 5.75], [24.53, 5.53], [24.75, 5.0], [24.53, 4.47], [24.0, 4.25], [23.47, 4.47], [23.25, 5.0], [23.47, 5.53], [24.0, 5.75]]]]}, "2021-05-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[22.97, 5.03], [23.32, 5.18], [23.47, 5.53], [24.0, 5.75], [24.53, 5.53], [24.68, 5.18], [25.03, 5.03], [25.18, 4.68], [25.25, 4.65], [25.5, 4.75], [25.75, 4.65], [26.0, 4.75], [26.53, 4.53], [26.75, 4.0], [26.53, 3.47], [26.0, 3.25], [25.75, 3.35], [25.68, 3.32], [25.65, 3.25], [25.75, 3.0], [25.65, 2.75], [25.75, 2.5], [25.53, 1.97], [25.0, 1.75], [24.47, 1.97], [24.32, 2.32], [23.97, 2.47], [23.75, 3.0], [23.85, 3.25], [23.8, 3.38], [23.5, 3.25], [22.97, 3.47], [22.75, 4.0], [22.85, 4.25], [22.75, 4.5], [22.97, 5.03]]]]}, "2021-05-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[22.97, 5.03], [23.32, 5.18], [23.47, 5.53], [24.0, 5.75], [24.25, 5.65], [24.5, 5.75], [25.0, 5.54], [25.5, 5.75], [26.03, 5.53], [26.25, 5.0], [26.15, 4.75], [26.18, 4.68], [26.53, 4.53], [26.75, 4.0], [26.53, 3.47], [26.0, 3.25], [25.75, 3.35], [25.68, 3.32], [25.65, 3.25], [25.75, 3.0], [25.65, 2.75], [25.75, 2.5], [25.53, 1.97], [25.0, 1.75], [24.47, 1.97], [24.32, 2.32], [23.97, 2.47], [23.75, 3.0], [23.85, 3.25], [23.8, 3.38], [23.5, 3.25], [22.97, 3.47], [22.75, 4.0], [22.85, 4.25], [22.75, 4.5], [22.97, 5.03]]]]}, "2021-05-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[22.97, 5.03], [23.32, 5.18], [23.47, 5.53], [24.0, 5.75], [24.25, 5.65], [24.5, 5.75], [25.0, 5.54], [25.5, 5.75], [26.03, 5.53], [26.25, 5.0], [26.15, 4.75], [26.18, 4.68], [26.53, 4.53], [26.75, 4.0], [26.53, 3.47], [26.0, 3.25], [25.75, 3.35], [25.68, 3.32], [25.65, 3.25], [25.75, 3.0], [25.65, 2.75], [25.75, 2.5], [25.53, 1.97], [25.0, 1.75], [24.47, 1.97], [24.32, 2.32], [23.97, 2.47], [23.75, 3.0], [23.85, 3.25], [23.8, 3.38], [23.5, 3.25], [22.97, 3.47], [22.75, 4.0], [22.85, 4.25], [22.75, 4.5], [22.97, 5.03]]]]}, "2021-05-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[23.75, 5.0], [23.97, 5.53], [24.5, 5.75], [25.0, 5.54], [25.5, 5.75], [26.03, 5.53], [26.25, 5.0], [26.15, 4.75], [26.25, 4.5], [26.15, 4.25], [26.25, 4.0], [26.03, 3.47], [25.5, 3.25], [24.97, 3.47], [24.82, 3.82], [24.47, 3.97], [24.32, 4.32], [23.97, 4.47], [23.75, 5.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 2.2760719084560606}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.6040022965203005}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [27.420111295456707, 26.813413239161605, 26.84155375965156, 26.59285667160566, 26.688373187033164]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [27.420111295456707, 27.7198263714493, 28.11463177275698, 27.738844436512295, 27.375575320309224]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.4655090402856104, 1.6932726775480742, 1.7033653791270953, 1.4668815538944924, 1.517671456957919]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.4655090402856104, 2.2630893924776387, 2.2760719084560606, 1.8264240268975414, 1.8062162695708253]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.2576305943012782, 1.6327311162676819, 1.6615232529992907, 1.4511353691689544, 1.4779115044234898]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.2576305943012782, 2.2480148926999624, 2.111659428999109, 1.7160841061907557, 1.7528116365281072]}}