{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-05-20 10:52:03.152828", "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-17_45.0_4.5"}, "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": 2026010001875}, "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 17 2026"}, "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": 61604.76946674759}, "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": ["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": 4.5}, "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": 45.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "45.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 44.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 48.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 3.75}, "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": [[[[43.75, 4.5], [43.97, 5.03], [44.5, 5.25], [44.75, 5.15], [44.82, 5.18], [44.97, 5.53], [45.32, 5.68], [45.47, 6.03], [46.0, 6.25], [46.25, 6.15], [46.5, 6.25], [47.0, 6.04], [47.5, 6.25], [47.75, 6.15], [48.0, 6.25], [48.53, 6.03], [48.75, 5.5], [48.65, 5.25], [48.75, 5.0], [48.53, 4.47], [48.18, 4.32], [48.03, 3.97], [47.68, 3.82], [47.53, 3.47], [47.0, 3.25], [46.75, 3.35], [46.5, 3.25], [45.97, 3.47], [45.82, 3.82], [45.75, 3.85], [45.68, 3.82], [45.53, 3.47], [45.0, 3.25], [44.47, 3.47], [44.32, 3.82], [43.97, 3.97], [43.75, 4.5]]]]}, "2026-01-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[43.75, 4.5], [43.97, 5.03], [44.5, 5.25], [44.75, 5.15], [44.82, 5.18], [44.97, 5.53], [45.32, 5.68], [45.47, 6.03], [46.0, 6.25], [46.25, 6.15], [46.5, 6.25], [47.0, 6.04], [47.5, 6.25], [47.75, 6.15], [48.0, 6.25], [48.53, 6.03], [48.75, 5.5], [48.65, 5.25], [48.75, 5.0], [48.53, 4.47], [48.18, 4.32], [48.03, 3.97], [47.68, 3.82], [47.53, 3.47], [47.0, 3.25], [46.75, 3.35], [46.5, 3.25], [45.97, 3.47], [45.82, 3.82], [45.75, 3.85], [45.68, 3.82], [45.53, 3.47], [45.0, 3.25], [44.47, 3.47], [44.32, 3.82], [43.97, 3.97], [43.75, 4.5]]]]}, "2026-01-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[43.75, 4.5], [43.97, 5.03], [44.5, 5.25], [44.75, 5.15], [44.82, 5.18], [44.97, 5.53], [45.32, 5.68], [45.47, 6.03], [46.0, 6.25], [46.25, 6.15], [46.5, 6.25], [47.0, 6.04], [47.5, 6.25], [47.75, 6.15], [48.0, 6.25], [48.53, 6.03], [48.75, 5.5], [48.65, 5.25], [48.75, 5.0], [48.53, 4.47], [48.18, 4.32], [48.03, 3.97], [47.68, 3.82], [47.53, 3.47], [47.0, 3.25], [46.75, 3.35], [46.5, 3.25], [45.97, 3.47], [45.82, 3.82], [45.75, 3.85], [45.68, 3.82], [45.53, 3.47], [45.0, 3.25], [44.47, 3.47], [44.32, 3.82], [43.97, 3.97], [43.75, 4.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 1.6737272635243698}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.0730418301960905}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [27.331032307942678, 27.52899347941087, 27.325163269043003]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [28.878594970703148, 29.4253924051921, 29.036108907063806]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.0075292096226776, 1.2060393681995236, 1.0055569127660704]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.169831899239, 1.6737272635243698, 1.306076883278081]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4591893667071076, 1.7883825741275075, 1.5329021988904412]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.7074276530995744, 2.235084534224806, 1.787702159112116]}}