{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 17:05:11.233248", "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_32.0_1.0"}, "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": 2025050000912}, "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": 105071.93380143188}, "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": ["Uganda"]}, "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": 1.0}, "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": 32.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "32.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 30.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 33.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -1.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 2.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[30.85, 1.75], [30.75, 2.0], [30.85, 2.25], [30.75, 2.5], [30.97, 3.03], [31.5, 3.25], [31.75, 3.15], [32.0, 3.25], [32.25, 3.15], [32.5, 3.25], [33.03, 3.03], [33.25, 2.5], [33.15, 2.25], [33.18, 2.18], [33.25, 2.15], [33.5, 2.25], [34.03, 2.03], [34.25, 1.5], [34.15, 1.25], [34.25, 1.0], [34.04, 0.5], [34.25, 0.0], [34.03, -0.53], [33.5, -0.75], [33.25, -0.65], [33.18, -0.68], [33.15, -0.75], [33.25, -1.0], [33.03, -1.53], [32.5, -1.75], [32.25, -1.65], [32.0, -1.75], [31.47, -1.53], [31.32, -1.18], [31.25, -1.15], [31.0, -1.25], [30.47, -1.03], [30.25, -0.5], [30.38, -0.2], [29.97, -0.03], [29.75, 0.5], [29.97, 1.03], [30.32, 1.18], [30.47, 1.53], [30.82, 1.68], [30.85, 1.75]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.Eastern-Africa", "S.Eastern-Africa"]}, "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": [[[[30.47, 1.53], [30.82, 1.68], [30.85, 1.75], [30.75, 2.0], [30.85, 2.25], [30.75, 2.5], [30.97, 3.03], [31.5, 3.25], [31.75, 3.15], [32.0, 3.25], [32.25, 3.15], [32.5, 3.25], [33.03, 3.03], [33.25, 2.5], [33.15, 2.25], [33.18, 2.18], [33.25, 2.15], [33.5, 2.25], [34.03, 2.03], [34.25, 1.5], [34.15, 1.25], [34.25, 1.0], [34.04, 0.5], [34.25, 0.0], [34.03, -0.53], [33.5, -0.75], [33.25, -0.65], [33.18, -0.68], [33.15, -0.75], [33.25, -1.0], [33.03, -1.53], [32.5, -1.75], [32.25, -1.65], [32.0, -1.75], [31.47, -1.53], [31.32, -1.18], [31.25, -1.15], [31.0, -1.25], [30.47, -1.03], [30.25, -0.5], [30.38, -0.2], [29.97, -0.03], [29.75, 0.5], [29.97, 1.03], [30.32, 1.18], [30.47, 1.53]]]]}, "2025-05-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[30.47, 1.53], [30.82, 1.68], [30.85, 1.75], [30.75, 2.0], [30.85, 2.25], [30.75, 2.5], [30.97, 3.03], [31.5, 3.25], [31.75, 3.15], [32.0, 3.25], [32.25, 3.15], [32.5, 3.25], [33.03, 3.03], [33.25, 2.5], [33.15, 2.25], [33.18, 2.18], [33.25, 2.15], [33.5, 2.25], [34.03, 2.03], [34.25, 1.5], [34.15, 1.25], [34.25, 1.0], [34.04, 0.5], [34.25, 0.0], [34.03, -0.53], [33.5, -0.75], [33.25, -0.65], [33.18, -0.68], [33.15, -0.75], [33.25, -1.0], [33.03, -1.53], [32.5, -1.75], [32.25, -1.65], [32.0, -1.75], [31.47, -1.53], [31.32, -1.18], [31.25, -1.15], [31.0, -1.25], [30.47, -1.03], [30.25, -0.5], [30.38, -0.2], [29.97, -0.03], [29.75, 0.5], [29.97, 1.03], [30.32, 1.18], [30.47, 1.53]]]]}, "2025-05-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[30.47, 1.53], [30.82, 1.68], [30.85, 1.75], [30.75, 2.0], [30.85, 2.25], [30.75, 2.5], [30.97, 3.03], [31.5, 3.25], [31.75, 3.15], [32.0, 3.25], [32.25, 3.15], [32.5, 3.25], [33.03, 3.03], [33.25, 2.5], [33.15, 2.25], [33.18, 2.18], [33.25, 2.15], [33.5, 2.25], [34.03, 2.03], [34.25, 1.5], [34.15, 1.25], [34.25, 1.0], [34.04, 0.5], [34.25, 0.0], [34.03, -0.53], [33.5, -0.75], [33.25, -0.65], [33.18, -0.68], [33.15, -0.75], [33.25, -1.0], [33.03, -1.53], [32.5, -1.75], [32.25, -1.65], [32.0, -1.75], [31.47, -1.53], [31.32, -1.18], [31.25, -1.15], [31.0, -1.25], [30.47, -1.03], [30.25, -0.5], [30.38, -0.2], [29.97, -0.03], [29.75, 0.5], [29.97, 1.03], [30.32, 1.18], [30.47, 1.53]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 2.482016811785968}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.5489258894955622}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [24.0564775205126, 24.11913624183802, 24.001904835420532]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [27.144887542724632, 26.927818552653036, 26.820769246419275]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.5391475053676682, 1.605908155803111, 1.5017220073159077]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [2.3466920211573665, 2.482016811785968, 1.987391828916202]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.8741665880670701, 1.9598838156421379, 1.8395869251431136]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.6479608815360174, 2.8421059063701613, 2.8672788539362277]}}