{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:55:30.932834", "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": "2025-May-01_to_2025-May-03_40.5_3.0"}, "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": 2025050000834}, "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 2025"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "May 03 2025"}, "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": 52363.66110333241}, "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": ["Ethiopia", "Kenya"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.Eastern-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": 3.0}, "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": 40.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "40.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 38.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 41.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 2.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 6.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2025-05-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[38.47, 4.47], [38.25, 5.0], [38.47, 5.53], [39.0, 5.75], [39.25, 5.65], [39.38, 5.7], [39.25, 6.0], [39.47, 6.53], [39.82, 6.68], [39.97, 7.03], [40.5, 7.25], [41.03, 7.03], [41.25, 6.5], [41.15, 6.25], [41.18, 6.18], [41.53, 6.03], [41.75, 5.5], [41.65, 5.25], [41.75, 5.0], [41.65, 4.75], [41.75, 4.5], [41.54, 4.0], [41.75, 3.5], [41.65, 3.25], [41.75, 3.0], [41.53, 2.47], [41.0, 2.25], [40.75, 2.35], [40.5, 2.25], [39.97, 2.47], [39.75, 3.0], [39.88, 3.3], [39.47, 3.47], [39.25, 4.0], [39.35, 4.25], [39.32, 4.32], [39.25, 4.35], [39.0, 4.25], [38.47, 4.47]]]]}, "2025-05-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[38.47, 4.47], [38.25, 5.0], [38.47, 5.53], [39.0, 5.75], [39.25, 5.65], [39.38, 5.7], [39.25, 6.0], [39.47, 6.53], [39.82, 6.68], [39.97, 7.03], [40.5, 7.25], [41.03, 7.03], [41.25, 6.5], [41.15, 6.25], [41.18, 6.18], [41.53, 6.03], [41.75, 5.5], [41.65, 5.25], [41.75, 5.0], [41.65, 4.75], [41.75, 4.5], [41.54, 4.0], [41.75, 3.5], [41.65, 3.25], [41.75, 3.0], [41.53, 2.47], [41.0, 2.25], [40.75, 2.35], [40.5, 2.25], [39.97, 2.47], [39.75, 3.0], [39.88, 3.3], [39.47, 3.47], [39.25, 4.0], [39.35, 4.25], [39.32, 4.32], [39.25, 4.35], [39.0, 4.25], [38.47, 4.47]]]]}, "2025-05-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[38.47, 4.47], [38.25, 5.0], [38.47, 5.53], [39.0, 5.75], [39.25, 5.65], [39.38, 5.7], [39.25, 6.0], [39.47, 6.53], [39.82, 6.68], [39.97, 7.03], [40.5, 7.25], [41.03, 7.03], [41.25, 6.5], [41.15, 6.25], [41.18, 6.18], [41.53, 6.03], [41.75, 5.5], [41.65, 5.25], [41.75, 5.0], [41.65, 4.75], [41.75, 4.5], [41.54, 4.0], [41.75, 3.5], [41.65, 3.25], [41.75, 3.0], [41.53, 2.47], [41.0, 2.25], [40.75, 2.35], [40.5, 2.25], [39.97, 2.47], [39.75, 3.0], [39.88, 3.3], [39.47, 3.47], [39.25, 4.0], [39.35, 4.25], [39.32, 4.32], [39.25, 4.35], [39.0, 4.25], [38.47, 4.47]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 2.3734401718539857}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.367344516227235}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [25.218924384023694, 25.25186018102312, 25.259523459041816]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [28.728220876057946, 28.693931833903036, 29.208545939127646]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.3279966575332631, 1.380517830650928, 1.3935190604975138]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.8451490206100516, 1.8443919855234299, 2.3734401718539857]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.465503467863338, 1.5538560232099152, 1.577465356802856]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.6921267617900133, 1.7796696537824659, 2.1044353824346014]}}