{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:59:31.862729", "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-29_to_2026-May-01_7.0_59.5"}, "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": 2026040002760}, "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 29 2026"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "May 01 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": 68501.08003262426}, "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": ["Norway"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.Europe"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Europe"]}, "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": ["North Sea"]}, "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": 59.5}, "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": 7.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "7.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 5.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 12.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 58.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 62.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2026-04-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[5.47, 62.03], [5.82, 62.18], [5.97, 62.53], [6.5, 62.75], [6.75, 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"2026-04-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[5.47, 62.03], [5.82, 62.18], [5.97, 62.53], [6.5, 62.75], [6.75, 62.65], [6.82, 62.68], [6.97, 63.03], [7.5, 63.25], [7.75, 63.15], [8.0, 63.25], [8.25, 63.15], [8.5, 63.25], [8.75, 63.15], [9.0, 63.25], [9.25, 63.15], [9.5, 63.25], [10.03, 63.03], [10.18, 62.68], [10.25, 62.65], [10.5, 62.75], [10.75, 62.65], [11.0, 62.75], [11.25, 62.65], [11.5, 62.75], [12.03, 62.53], [12.18, 62.18], [12.53, 62.03], [12.75, 61.5], [12.53, 60.97], [12.18, 60.82], [12.03, 60.47], [11.68, 60.32], [11.53, 59.97], [11.0, 59.75], [10.75, 59.85], [10.5, 59.75], [9.97, 59.97], [9.82, 60.32], [9.75, 60.35], [9.5, 60.25], [9.25, 60.35], [9.18, 60.32], [9.15, 60.25], [9.25, 60.0], [9.03, 59.47], [8.68, 59.32], [8.53, 58.97], [8.18, 58.82], [8.03, 58.47], [7.5, 58.25], [7.25, 58.35], [7.0, 58.25], [6.47, 58.47], [6.25, 59.0], [6.35, 59.25], [6.25, 59.5], [6.38, 59.8], [6.25, 59.85], [6.0, 59.75], [5.47, 59.97], [5.25, 60.5], [5.46, 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"The daily evolution of mean t2m anomalies.", "value": [4.432022767640928, 6.3149012814586465, 6.266807285713959]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [5.832573635276049, 8.063190343912026, 8.593276894816995]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.602593217075554, 2.26158730833306, 2.214701569799036]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.14743950911693, 3.1871920059428778, 2.7802150836077164]}}