{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-05-20 10:52:01.728664", "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-07_to_2026-Jan-09_29.5_22.0"}, "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": 2026010001476}, "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 07 2026"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "January 09 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": 54429.815276557885}, "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": ["Egypt", "Sudan"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Sahara"]}, "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": 22.0}, "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": 29.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "29.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 27.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 30.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 20.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 23.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2026-01-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[27.35, 21.75], [27.25, 22.0], [27.47, 22.53], [27.82, 22.68], [27.85, 22.75], [27.75, 23.0], [27.97, 23.53], [28.5, 23.75], [28.75, 23.65], [29.0, 23.75], [29.25, 23.65], [29.5, 23.75], [29.75, 23.65], [30.0, 23.75], [30.53, 23.53], [30.75, 23.0], [30.65, 22.75], [30.75, 22.5], [30.53, 21.97], [30.18, 21.82], [30.15, 21.75], [30.25, 21.5], [30.03, 20.97], [29.68, 20.82], [29.53, 20.47], [29.0, 20.25], [28.75, 20.35], [28.5, 20.25], [28.25, 20.35], [28.0, 20.25], [27.47, 20.47], [27.25, 21.0], [27.35, 21.25], [27.25, 21.5], [27.35, 21.75]]]]}, "2026-01-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[27.35, 21.75], [27.25, 22.0], [27.47, 22.53], [27.82, 22.68], [27.85, 22.75], [27.75, 23.0], [27.97, 23.53], [28.5, 23.75], [28.75, 23.65], [29.0, 23.75], [29.25, 23.65], [29.5, 23.75], [29.75, 23.65], [30.0, 23.75], [30.53, 23.53], [30.75, 23.0], [30.65, 22.75], [30.75, 22.5], [30.53, 21.97], [30.18, 21.82], [30.15, 21.75], [30.25, 21.5], [30.03, 20.97], [29.68, 20.82], [29.53, 20.47], [29.0, 20.25], [28.75, 20.35], [28.5, 20.25], [28.25, 20.35], [28.0, 20.25], [27.47, 20.47], [27.25, 21.0], [27.35, 21.25], [27.25, 21.5], [27.35, 21.75]]]]}, "2026-01-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[27.35, 21.75], [27.25, 22.0], [27.47, 22.53], [27.82, 22.68], [27.85, 22.75], [27.75, 23.0], [27.97, 23.53], [28.5, 23.75], [28.75, 23.65], [29.0, 23.75], [29.25, 23.65], [29.5, 23.75], [29.75, 23.65], [30.0, 23.75], [30.53, 23.53], [30.75, 23.0], [30.65, 22.75], [30.75, 22.5], [30.53, 21.97], [30.18, 21.82], [30.15, 21.75], [30.25, 21.5], [30.03, 20.97], [29.68, 20.82], [29.53, 20.47], [29.0, 20.25], [28.75, 20.35], [28.5, 20.25], [28.25, 20.35], [28.0, 20.25], [27.47, 20.47], [27.25, 21.0], [27.35, 21.25], [27.25, 21.5], [27.35, 21.75]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 7.256974719010259}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 4.950283834832231}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [17.25996116504342, 19.537303576553143, 16.975110358522613]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [19.44254837036135, 21.385302480061853, 18.482053375244163]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [4.35204240488899, 6.571962774123589, 3.926846325484112]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [5.598258338049334, 7.256974719010259, 4.325308663633621]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.6546150925199536, 2.4344749137846735, 1.4049116056423536]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.9497249981122247, 2.5537843229510178, 1.484780000855549]}}