{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:58:23.245295", "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-02_to_2026-Jan-05_3.0_35.5"}, "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": 2026010001142}, "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 02 2026"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "January 05 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": 55517.21675409506}, "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": ["Algeria"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Mediterranean"]}, "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": 35.5}, "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": 3.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "3.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": -1.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 3.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 34.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 36.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2026-01-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-2.03, 34.47], [-2.25, 35.0], [-2.03, 35.53], [-1.5, 35.75], [-1.25, 35.65], [-1.0, 35.75], [-0.75, 35.65], [-0.68, 35.68], [-0.53, 36.03], [0.0, 36.25], [0.25, 36.15], [0.32, 36.18], [0.47, 36.53], [1.0, 36.75], [1.25, 36.65], [1.5, 36.75], [1.75, 36.65], [2.0, 36.75], [2.25, 36.65], [2.5, 36.75], [3.03, 36.53], [3.18, 36.18], [3.53, 36.03], [3.75, 35.5], [3.65, 35.25], [3.75, 35.0], [3.53, 34.47], [3.0, 34.25], [2.75, 34.35], [2.68, 34.32], [2.53, 33.97], [2.0, 33.75], [1.75, 33.85], [1.5, 33.75], [1.25, 33.85], [1.0, 33.75], [0.47, 33.97], [0.32, 34.32], [0.25, 34.35], [0.0, 34.25], [-0.25, 34.35], [-0.5, 34.25], [-0.75, 34.35], [-1.0, 34.25], [-1.25, 34.35], [-1.5, 34.25], [-2.03, 34.47]]]]}, "2026-01-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-2.03, 34.47], [-2.25, 35.0], [-2.03, 35.53], [-1.5, 35.75], [-1.25, 35.65], [-1.0, 35.75], [-0.75, 35.65], [-0.68, 35.68], [-0.53, 36.03], [0.0, 36.25], [0.25, 36.15], [0.32, 36.18], [0.47, 36.53], [1.0, 36.75], [1.25, 36.65], [1.5, 36.75], [1.75, 36.65], [2.0, 36.75], [2.25, 36.65], [2.5, 36.75], [3.03, 36.53], [3.18, 36.18], [3.53, 36.03], [3.75, 35.5], [3.65, 35.25], [3.75, 35.0], [3.53, 34.47], [3.0, 34.25], [2.75, 34.35], [2.68, 34.32], [2.53, 33.97], [2.0, 33.75], [1.75, 33.85], [1.5, 33.75], [1.25, 33.85], [1.0, 33.75], [0.47, 33.97], [0.32, 34.32], [0.25, 34.35], [0.0, 34.25], [-0.25, 34.35], [-0.5, 34.25], [-0.75, 34.35], [-1.0, 34.25], [-1.25, 34.35], [-1.5, 34.25], [-2.03, 34.47]]]]}, "2026-01-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-2.03, 34.47], [-2.25, 35.0], [-2.03, 35.53], [-1.5, 35.75], [-1.25, 35.65], [-1.0, 35.75], [-0.75, 35.65], [-0.68, 35.68], [-0.53, 36.03], [0.0, 36.25], [0.25, 36.15], [0.32, 36.18], [0.47, 36.53], [1.0, 36.75], [1.25, 36.65], [1.5, 36.75], [1.75, 36.65], [2.0, 36.75], [2.25, 36.65], [2.5, 36.75], [3.03, 36.53], [3.18, 36.18], [3.53, 36.03], [3.75, 35.5], [3.65, 35.25], [3.75, 35.0], [3.53, 34.47], [3.0, 34.25], [2.75, 34.35], [2.68, 34.32], [2.53, 33.97], [2.0, 33.75], [1.75, 33.85], [1.5, 33.75], [1.25, 33.85], [1.0, 33.75], [0.47, 33.97], [0.32, 34.32], [0.25, 34.35], [0.0, 34.25], [-0.25, 34.35], [-0.5, 34.25], [-0.75, 34.35], [-1.0, 34.25], [-1.25, 34.35], [-1.5, 34.25], [-2.03, 34.47]]]]}, "2026-01-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[2.32, 35.68], [2.47, 36.03], [3.0, 36.25], [3.53, 36.03], [3.75, 35.5], [3.65, 35.25], [3.75, 35.0], [3.53, 34.47], [3.0, 34.25], [2.75, 34.35], [2.5, 34.25], [2.2, 34.38], [2.03, 33.97], [1.5, 33.75], [0.97, 33.97], [0.75, 34.5], [0.97, 35.03], [1.5, 35.25], [1.8, 35.13], [1.97, 35.53], [2.32, 35.68]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 6.162290376135616}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 4.5275122571603745}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [12.076614518599115, 12.96166508992519, 12.399919937596223, 10.252146657307946]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [14.879874165852868, 16.899612681071005, 15.24308547973635, 10.728383636474632]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [4.134771171848187, 5.060296518774723, 4.506447685246666, 3.8731299330238897]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [4.920215377726606, 6.162290376135616, 5.0702285422841555, 4.158301661419216]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.569590075745934, 1.9414750221162225, 1.751451708958947, 1.4972372209546256]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.8776622366786808, 2.360518135764406, 2.0764156658923274, 1.5878634045162587]}}