{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:46:39.959015", "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": "2011-Jan-17_to_2011-Jan-19_27.0_49.5"}, "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": 2011010002279}, "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 17 2011"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "January 19 2011"}, "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": 68872.52131102298}, "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": ["Ukraine"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["West&Central-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": []}, "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": 49.5}, "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": 27.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "27.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 24.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 28.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 48.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 51.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2011-01-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[24.47, 51.53], [24.82, 51.68], [24.97, 52.03], [25.5, 52.25], [25.75, 52.15], [26.0, 52.25], [26.25, 52.15], [26.5, 52.25], [26.75, 52.15], [27.0, 52.25], [27.25, 52.15], [27.5, 52.25], [27.75, 52.15], [28.0, 52.25], [28.53, 52.03], [28.68, 51.68], [29.03, 51.53], [29.25, 51.0], [29.15, 50.75], [29.25, 50.5], [29.03, 49.97], [28.68, 49.82], [28.53, 49.47], [28.18, 49.32], [28.03, 48.97], [27.5, 48.75], [27.25, 48.85], [27.18, 48.82], [27.03, 48.47], [26.5, 48.25], [26.0, 48.46], [25.5, 48.25], [24.97, 48.47], [24.75, 49.0], [24.85, 49.25], [24.82, 49.32], [24.47, 49.47], [24.25, 50.0], [24.46, 50.5], [24.25, 51.0], [24.47, 51.53]]]]}, "2011-01-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[24.47, 51.53], [24.82, 51.68], [24.97, 52.03], [25.5, 52.25], [25.75, 52.15], [26.0, 52.25], [26.25, 52.15], [26.5, 52.25], [26.75, 52.15], [27.0, 52.25], [27.25, 52.15], [27.5, 52.25], [27.75, 52.15], [28.0, 52.25], [28.53, 52.03], [28.68, 51.68], [29.03, 51.53], [29.25, 51.0], [29.15, 50.75], [29.25, 50.5], [29.03, 49.97], [28.68, 49.82], [28.53, 49.47], [28.18, 49.32], [28.03, 48.97], [27.5, 48.75], [27.25, 48.85], [27.18, 48.82], [27.03, 48.47], [26.5, 48.25], [26.0, 48.46], [25.5, 48.25], [24.97, 48.47], [24.75, 49.0], [24.85, 49.25], [24.82, 49.32], [24.47, 49.47], [24.25, 50.0], [24.46, 50.5], [24.25, 51.0], [24.47, 51.53]]]]}, "2011-01-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[24.47, 51.53], [24.82, 51.68], [24.97, 52.03], [25.5, 52.25], [25.75, 52.15], [26.0, 52.25], [26.25, 52.15], [26.5, 52.25], [26.75, 52.15], [27.0, 52.25], [27.25, 52.15], [27.5, 52.25], [27.75, 52.15], [28.0, 52.25], [28.53, 52.03], [28.68, 51.68], [29.03, 51.53], [29.25, 51.0], [29.15, 50.75], [29.25, 50.5], [29.03, 49.97], [28.68, 49.82], [28.53, 49.47], [28.18, 49.32], [28.03, 48.97], [27.5, 48.75], [27.25, 48.85], [27.18, 48.82], [27.03, 48.47], [26.5, 48.25], [26.0, 48.46], [25.5, 48.25], [24.97, 48.47], [24.75, 49.0], [24.85, 49.25], [24.82, 49.32], [24.47, 49.47], [24.25, 50.0], [24.46, 50.5], [24.25, 51.0], [24.47, 51.53]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 7.302844668496732}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 6.007111894101914}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [3.1449638763660346, 3.5479359216539024, 2.5843663149396434]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [4.334769945649782, 3.97101053723361, 3.027792112308532]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [5.76018783039746, 6.423819438195004, 5.837328413713271]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [6.694296317706346, 7.302844668496732, 6.161599588342938]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.3112719778112745, 1.3876577289655225, 1.1861078379146692]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.5118435745039853, 1.5244357059566358, 1.2554235849336939]}}