{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-05-20 10:52:03.141627", "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": "2026-Jan-15_to_2026-Jan-18_42.5_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": 2026010001873}, "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": "January 15 2026"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "January 18 2026"}, "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": 86343.13028069666}, "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", "Somalia"]}, "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": 42.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "42.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 40.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 44.25}, "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": 5.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2026-01-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[40.47, 1.97], [40.25, 2.5], [40.47, 3.03], [41.0, 3.25], [41.25, 3.15], [41.5, 3.25], [41.8, 3.12], [41.85, 3.25], [41.75, 3.5], [41.97, 4.03], [42.5, 4.25], [42.75, 4.15], [43.0, 4.25], [43.25, 4.15], [43.5, 4.25], [43.75, 4.15], [44.0, 4.25], [44.53, 4.03], [44.75, 3.5], [44.53, 2.97], [44.0, 2.75], [43.75, 2.85], [43.5, 2.75], [43.25, 2.85], [43.18, 2.82], [43.15, 2.75], [43.25, 2.5], [43.03, 1.97], [42.5, 1.75], [42.0, 1.96], [41.5, 1.75], [41.25, 1.85], [41.0, 1.75], [40.47, 1.97]]]]}, "2026-01-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[39.75, 3.0], [39.97, 3.53], [40.32, 3.68], [40.46, 4.0], [40.25, 4.5], [40.47, 5.03], [40.82, 5.18], [40.85, 5.25], [40.75, 5.5], [40.97, 6.03], [41.5, 6.25], [42.03, 6.03], [42.2, 5.62], [42.32, 5.68], [42.47, 6.03], [43.0, 6.25], [43.25, 6.15], [43.5, 6.25], [44.03, 6.03], [44.25, 5.5], [44.03, 4.97], [43.68, 4.82], [43.54, 4.5], [43.68, 4.18], [43.75, 4.15], [44.0, 4.25], [44.53, 4.03], [44.75, 3.5], [44.53, 2.97], [44.0, 2.75], [43.75, 2.85], [43.5, 2.75], [43.25, 2.85], [43.18, 2.82], [43.15, 2.75], [43.25, 2.5], [43.03, 1.97], [42.5, 1.75], [42.0, 1.96], [41.5, 1.75], [41.25, 1.85], [41.0, 1.75], [40.47, 1.97], [40.32, 2.32], [39.97, 2.47], [39.75, 3.0]]]]}, "2026-01-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[39.75, 3.0], [39.97, 3.53], [40.32, 3.68], [40.46, 4.0], [40.25, 4.5], [40.47, 5.03], [40.82, 5.18], [40.85, 5.25], [40.75, 5.5], [40.97, 6.03], [41.5, 6.25], [42.03, 6.03], [42.2, 5.62], [42.32, 5.68], [42.47, 6.03], [43.0, 6.25], [43.25, 6.15], [43.5, 6.25], [44.03, 6.03], [44.25, 5.5], [44.03, 4.97], [43.68, 4.82], [43.54, 4.5], [43.68, 4.18], [43.75, 4.15], [44.0, 4.25], [44.53, 4.03], [44.75, 3.5], [44.53, 2.97], [44.0, 2.75], [43.75, 2.85], [43.5, 2.75], [43.25, 2.85], [43.18, 2.82], [43.15, 2.75], [43.25, 2.5], [43.03, 1.97], [42.5, 1.75], [42.0, 1.96], [41.5, 1.75], [41.25, 1.85], [41.0, 1.75], [40.47, 1.97], [40.32, 2.32], [39.97, 2.47], [39.75, 3.0]]]]}, "2026-01-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[39.75, 3.0], [39.97, 3.53], [40.32, 3.68], [40.46, 4.0], [40.25, 4.5], [40.47, 5.03], [40.82, 5.18], [40.85, 5.25], [40.75, 5.5], [40.97, 6.03], [41.5, 6.25], [42.03, 6.03], [42.2, 5.62], [42.32, 5.68], [42.47, 6.03], [43.0, 6.25], [43.25, 6.15], [43.5, 6.25], [44.03, 6.03], [44.25, 5.5], [44.03, 4.97], [43.68, 4.82], [43.54, 4.5], [43.68, 4.18], [44.03, 4.03], [44.25, 3.5], [44.03, 2.97], [43.5, 2.75], [43.25, 2.85], [43.18, 2.82], [43.15, 2.75], [43.25, 2.5], [43.03, 1.97], [42.5, 1.75], [42.0, 1.96], [41.5, 1.75], [41.25, 1.85], [41.0, 1.75], [40.47, 1.97], [40.32, 2.32], [39.97, 2.47], [39.75, 3.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 1.9077488888988796}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.447536340041017}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [30.193678792317712, 30.11106716337656, 30.001342119489436, 30.189230761115937]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [31.918715413411462, 32.2869646708171, 32.424536641438806, 32.39352823893233]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.2869399905011178, 1.5455206224494629, 1.4002531695438551, 1.4425415127374335]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.4734625731916822, 1.9077488888988796, 1.8154896830844791, 1.7547068760817979]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.3038003905817277, 1.561388259445552, 1.4412116994929818, 1.5305767199932607]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.4001481534728089, 1.99189130316735, 1.6751617074689318, 1.9267118922129742]}}