{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:59:23.832370", "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-Apr-10_to_2026-Apr-12_6.0_6.0"}, "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": 2026040001560}, "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": "April 10 2026"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "April 12 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": 58381.978579401366}, "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": ["Nigeria"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Western-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": 6.0}, "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": 6.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "6.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 4.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 7.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 4.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 7.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2026-04-10T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[4.47, 7.53], [5.0, 7.75], [5.25, 7.65], [5.5, 7.75], [5.75, 7.65], [6.0, 7.75], [6.25, 7.65], [6.5, 7.75], [6.75, 7.65], [7.0, 7.75], [7.53, 7.53], [7.75, 7.0], [7.65, 6.75], [7.75, 6.5], [7.65, 6.25], [7.75, 6.0], [7.53, 5.47], [7.18, 5.32], [7.03, 4.97], [6.68, 4.82], [6.53, 4.47], [6.0, 4.25], [5.75, 4.35], [5.5, 4.25], [4.97, 4.47], [4.75, 5.0], [4.85, 5.25], [4.75, 5.5], [4.85, 5.75], [4.82, 5.82], [4.47, 5.97], [4.25, 6.5], [4.35, 6.75], [4.25, 7.0], [4.47, 7.53]]]]}, "2026-04-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[4.47, 7.53], [5.0, 7.75], [5.25, 7.65], [5.5, 7.75], [5.75, 7.65], [6.0, 7.75], [6.25, 7.65], [6.5, 7.75], [6.75, 7.65], [7.0, 7.75], [7.53, 7.53], [7.75, 7.0], [7.65, 6.75], [7.75, 6.5], [7.65, 6.25], [7.75, 6.0], [7.53, 5.47], [7.18, 5.32], [7.03, 4.97], [6.68, 4.82], [6.53, 4.47], [6.0, 4.25], [5.75, 4.35], [5.5, 4.25], [4.97, 4.47], [4.75, 5.0], [4.85, 5.25], [4.75, 5.5], [4.85, 5.75], [4.82, 5.82], [4.47, 5.97], [4.25, 6.5], [4.35, 6.75], [4.25, 7.0], [4.47, 7.53]]]]}, "2026-04-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[4.47, 7.53], [5.0, 7.75], [5.25, 7.65], [5.5, 7.75], [5.75, 7.65], [6.0, 7.75], [6.25, 7.65], [6.5, 7.75], [6.75, 7.65], [7.0, 7.75], [7.53, 7.53], [7.75, 7.0], [7.65, 6.75], [7.75, 6.5], [7.65, 6.25], [7.75, 6.0], [7.53, 5.47], [7.18, 5.32], [7.03, 4.97], [6.68, 4.82], [6.53, 4.47], [6.0, 4.25], [5.75, 4.35], [5.5, 4.25], [4.97, 4.47], [4.75, 5.0], [4.85, 5.25], [4.75, 5.5], [4.85, 5.75], [4.82, 5.82], [4.47, 5.97], [4.25, 6.5], [4.35, 6.75], [4.25, 7.0], [4.47, 7.53]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 2.7560864044499453}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.824864145937839}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [29.31200193438616, 29.38887912683316, 28.813320614998815]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [30.9404070536296, 31.294096883138025, 30.517524973551474]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.9417560286579367, 2.0464147082118624, 1.4864217009437173]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [2.568873013216262, 2.7560864044499453, 1.809536713037403]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.9735494810157486, 2.0364126926185495, 1.4999824543281257]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.657215881237835, 2.5700018758338183, 1.6713190511557385]}}