{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 17:03:33.828126", "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-Feb-07_to_2025-Feb-10_37.5_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": 2025020001121}, "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": "February 07 2025"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "February 10 2025"}, "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": 114343.28411353365}, "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": ["Kenya"]}, "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": 37.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "37.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 36.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 39.5}, "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": [[[[35.35, 0.75], [35.25, 1.0], [35.47, 1.53], [35.82, 1.68], [35.97, 2.03], [36.32, 2.18], [36.47, 2.53], [36.82, 2.68], [36.97, 3.03], [37.5, 3.25], [38.03, 3.03], [38.18, 2.68], [38.25, 2.65], [38.5, 2.75], [38.75, 2.65], [39.0, 2.75], [39.25, 2.65], [39.5, 2.75], [40.03, 2.53], [40.25, 2.0], [40.15, 1.75], [40.25, 1.5], [40.03, 0.97], [39.68, 0.82], [39.65, 0.75], [39.75, 0.5], [39.65, 0.25], [39.75, 0.0], [39.53, -0.53], [39.18, -0.68], [39.15, -0.75], [39.25, -1.0], [39.03, -1.53], [38.5, -1.75], [38.25, -1.65], [38.0, -1.75], [37.47, -1.53], [37.32, -1.18], [36.97, -1.03], [36.8, -0.62], [36.68, -0.68], [36.53, -1.03], [36.0, -1.25], [35.47, -1.03], [35.25, -0.5], [35.35, -0.25], [35.25, 0.0], [35.35, 0.25], [35.25, 0.5], [35.35, 0.75]]]]}}, "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": {"2025-02-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[35.25, 0.5], [35.35, 0.75], [35.25, 1.0], [35.47, 1.53], [36.0, 1.75], [36.53, 1.53], [36.7, 1.12], [36.82, 1.18], [36.85, 1.25], [36.75, 1.5], [36.85, 1.75], [36.75, 2.0], [36.97, 2.53], [37.5, 2.75], [37.75, 2.65], [38.0, 2.75], [38.25, 2.65], [38.5, 2.75], [38.75, 2.65], [39.0, 2.75], [39.25, 2.65], [39.5, 2.75], [40.03, 2.53], [40.25, 2.0], [40.15, 1.75], [40.25, 1.5], [40.03, 0.97], [39.68, 0.82], [39.53, 0.47], [39.18, 0.32], [39.03, -0.03], [38.68, -0.18], [38.53, -0.53], [38.0, -0.75], [37.47, -0.53], [37.3, -0.12], [37.0, -0.25], [36.7, -0.12], [36.53, -0.53], [36.0, -0.75], [35.47, -0.53], [35.25, 0.0], [35.35, 0.25], [35.25, 0.5]]]]}, "2025-02-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[35.25, 0.0], [35.35, 0.25], [35.25, 0.5], [35.35, 0.75], [35.25, 1.0], [35.47, 1.53], [35.82, 1.68], [35.97, 2.03], [36.32, 2.18], [36.47, 2.53], [36.82, 2.68], [36.97, 3.03], [37.5, 3.25], [38.03, 3.03], [38.18, 2.68], [38.25, 2.65], [38.5, 2.75], [38.75, 2.65], [39.0, 2.75], [39.25, 2.65], [39.5, 2.75], [40.03, 2.53], [40.25, 2.0], [40.15, 1.75], [40.25, 1.5], [40.03, 0.97], [39.68, 0.82], [39.65, 0.75], [39.75, 0.5], [39.65, 0.25], [39.75, 0.0], [39.53, -0.53], [39.18, -0.68], [39.15, -0.75], [39.25, -1.0], [39.03, -1.53], [38.5, -1.75], [38.25, -1.65], [38.0, -1.75], [37.47, -1.53], [37.32, -1.18], [36.97, -1.03], [36.8, -0.62], [36.68, -0.68], [36.53, -1.03], [36.0, -1.25], [35.47, -1.03], [35.25, -0.5], [35.35, -0.25], [35.25, 0.0]]]]}, "2025-02-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[35.25, 0.0], [35.35, 0.25], [35.25, 0.5], [35.35, 0.75], [35.25, 1.0], [35.47, 1.53], [35.82, 1.68], [35.97, 2.03], [36.32, 2.18], [36.47, 2.53], [36.82, 2.68], [36.97, 3.03], [37.5, 3.25], [38.03, 3.03], [38.18, 2.68], [38.25, 2.65], [38.5, 2.75], [38.75, 2.65], [39.0, 2.75], [39.25, 2.65], [39.5, 2.75], [40.03, 2.53], [40.25, 2.0], [40.15, 1.75], [40.25, 1.5], [40.03, 0.97], [39.68, 0.82], [39.65, 0.75], [39.75, 0.5], [39.65, 0.25], [39.75, 0.0], [39.53, -0.53], [39.18, -0.68], [39.15, -0.75], [39.25, -1.0], [39.03, -1.53], [38.5, -1.75], [38.25, -1.65], [38.0, -1.75], [37.47, -1.53], [37.32, -1.18], [36.97, -1.03], [36.8, -0.62], [36.68, -0.68], [36.53, -1.03], [36.0, -1.25], [35.47, -1.03], [35.25, -0.5], [35.35, -0.25], [35.25, 0.0]]]]}, "2025-02-10T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[35.25, 0.0], [35.35, 0.25], [35.25, 0.5], [35.35, 0.75], [35.25, 1.0], [35.47, 1.53], [35.82, 1.68], [35.97, 2.03], [36.32, 2.18], [36.47, 2.53], [36.82, 2.68], [36.97, 3.03], [37.5, 3.25], [38.03, 3.03], [38.18, 2.68], [38.25, 2.65], [38.5, 2.75], [39.03, 2.53], [39.18, 2.18], [39.53, 2.03], [39.75, 1.5], [39.65, 1.25], [39.75, 1.0], [39.65, 0.75], [39.75, 0.5], [39.65, 0.25], [39.75, 0.0], [39.53, -0.53], [39.18, -0.68], [39.15, -0.75], [39.25, -1.0], [39.03, -1.53], [38.5, -1.75], [38.25, -1.65], [38.0, -1.75], [37.47, -1.53], [37.32, -1.18], [36.97, -1.03], [36.8, -0.62], [36.68, -0.68], [36.53, -1.03], [36.0, -1.25], [35.47, -1.03], [35.25, -0.5], [35.35, -0.25], [35.25, 0.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 2.8313064544967688}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.663161102102669}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [28.273388671874955, 27.377089505582262, 27.712599828221812, 27.463487094056404]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [30.561975097656273, 31.26734059651693, 31.721047973632835, 31.492822265625023]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.3117305249272762, 1.5465036176072815, 1.836319529657203, 1.8083986506414764]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.533118900786576, 2.0724621630578213, 2.8313064544967688, 2.460243253737758]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4204512116698127, 1.616687829227019, 1.8293781822223303, 1.7267989669250292]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.678571314224029, 2.191863000456156, 2.87648256278181, 2.377799423063141]}}