{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:48:46.324486", "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-Oct-30_to_2011-Nov-02_12.0_59.0"}, "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": 2011100002888}, "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": "October 30 2011"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "November 02 2011"}, "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": 95700.11028856967}, "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": ["Denmark", "Norway", "Sweden"]}, "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": []}, "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": 59.0}, "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": 12.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "12.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 11.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 17.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 55.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 59.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2011-10-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[10.97, 59.53], [11.5, 59.75], [11.75, 59.65], [12.0, 59.75], [12.25, 59.65], [12.5, 59.75], [13.03, 59.53], [13.18, 59.18], [13.25, 59.15], [13.32, 59.18], [13.47, 59.53], [14.0, 59.75], [14.25, 59.65], [14.5, 59.75], [14.75, 59.65], [15.0, 59.75], [15.25, 59.65], [15.5, 59.75], [15.75, 59.65], [16.0, 59.75], [16.53, 59.53], [16.75, 59.0], [16.65, 58.75], [16.75, 58.5], [16.53, 57.97], [16.13, 57.8], [16.18, 57.68], [16.53, 57.53], [16.75, 57.0], [16.53, 56.47], [16.18, 56.32], [16.03, 55.97], [15.5, 55.75], [15.0, 55.96], [14.68, 55.82], [14.53, 55.47], [14.0, 55.25], [13.75, 55.35], [13.5, 55.25], [13.25, 55.35], [13.0, 55.25], [12.75, 55.35], [12.68, 55.32], [12.53, 54.97], [12.0, 54.75], [11.47, 54.97], [11.25, 55.5], [11.47, 56.03], [11.82, 56.18], [11.96, 56.5], [11.82, 56.82], [11.47, 56.97], [11.25, 57.5], [11.35, 57.75], [11.32, 57.82], [10.97, 57.97], [10.75, 58.5], [10.85, 58.75], [10.75, 59.0], [10.97, 59.53]]]]}, "2011-10-31T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[10.97, 59.53], [11.5, 59.75], [11.75, 59.65], [12.0, 59.75], [12.25, 59.65], [12.5, 59.75], [13.03, 59.53], [13.18, 59.18], [13.25, 59.15], [13.32, 59.18], [13.47, 59.53], [14.0, 59.75], [14.25, 59.65], [14.5, 59.75], [14.75, 59.65], [15.0, 59.75], [15.25, 59.65], [15.5, 59.75], [15.75, 59.65], [16.0, 59.75], [16.25, 59.65], [16.5, 59.75], [16.75, 59.65], [17.0, 59.75], [17.53, 59.53], [17.75, 59.0], [17.53, 58.47], [17.18, 58.32], [17.15, 58.25], [17.25, 58.0], [17.15, 57.75], [17.25, 57.5], [17.03, 56.97], [16.68, 56.82], [16.53, 56.47], [16.18, 56.32], [16.03, 55.97], [15.5, 55.75], [15.0, 55.96], [14.68, 55.82], [14.53, 55.47], [14.0, 55.25], [13.75, 55.35], [13.5, 55.25], [13.25, 55.35], [13.0, 55.25], [12.75, 55.35], [12.68, 55.32], [12.53, 54.97], [12.0, 54.75], [11.47, 54.97], [11.25, 55.5], [11.47, 56.03], [11.82, 56.18], [11.96, 56.5], [11.82, 56.82], [11.47, 56.97], [11.25, 57.5], [11.35, 57.75], [11.32, 57.82], [10.97, 57.97], [10.75, 58.5], [10.85, 58.75], [10.75, 59.0], [10.97, 59.53]]]]}, "2011-11-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[10.97, 59.53], [11.5, 59.75], [11.75, 59.65], [12.0, 59.75], [12.25, 59.65], [12.5, 59.75], [13.03, 59.53], [13.18, 59.18], [13.25, 59.15], [13.32, 59.18], [13.47, 59.53], [14.0, 59.75], [14.25, 59.65], [14.5, 59.75], [14.75, 59.65], [15.0, 59.75], [15.25, 59.65], [15.5, 59.75], [15.75, 59.65], [16.0, 59.75], [16.25, 59.65], [16.5, 59.75], [16.75, 59.65], [17.0, 59.75], [17.53, 59.53], [17.75, 59.0], [17.53, 58.47], [17.18, 58.32], [17.15, 58.25], [17.25, 58.0], [17.15, 57.75], [17.25, 57.5], [17.03, 56.97], [16.68, 56.82], [16.53, 56.47], [16.18, 56.32], [16.03, 55.97], [15.5, 55.75], [15.0, 55.96], [14.68, 55.82], [14.53, 55.47], [14.0, 55.25], [13.75, 55.35], [13.5, 55.25], [13.25, 55.35], [13.0, 55.25], [12.75, 55.35], [12.68, 55.32], [12.53, 54.97], [12.0, 54.75], [11.47, 54.97], [11.25, 55.5], [11.47, 56.03], [11.82, 56.18], [11.96, 56.5], [11.82, 56.82], [11.47, 56.97], [11.25, 57.5], [11.35, 57.75], [11.32, 57.82], [10.97, 57.97], [10.75, 58.5], [10.85, 58.75], [10.75, 59.0], [10.97, 59.53]]]]}, "2011-11-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[10.97, 59.53], [11.5, 59.75], [11.75, 59.65], [12.0, 59.75], [12.25, 59.65], [12.5, 59.75], [13.03, 59.53], [13.18, 59.18], [13.25, 59.15], [13.32, 59.18], [13.47, 59.53], [14.0, 59.75], [14.25, 59.65], [14.5, 59.75], [14.75, 59.65], [15.0, 59.75], [15.25, 59.65], [15.5, 59.75], [15.75, 59.65], [16.0, 59.75], [16.25, 59.65], [16.5, 59.75], [16.75, 59.65], [17.0, 59.75], [17.53, 59.53], [17.75, 59.0], [17.53, 58.47], [17.18, 58.32], [17.15, 58.25], [17.25, 58.0], [17.15, 57.75], [17.25, 57.5], [17.03, 56.97], [16.5, 56.75], [16.25, 56.85], [16.18, 56.82], [16.03, 56.47], [15.5, 56.25], [14.97, 56.47], [14.82, 56.82], [14.47, 56.97], [14.3, 57.38], [14.0, 57.25], [13.75, 57.35], [13.5, 57.25], [13.25, 57.35], [13.0, 57.25], [12.47, 57.47], [12.32, 57.82], [12.25, 57.85], [12.0, 57.75], [11.75, 57.85], [11.5, 57.75], [10.97, 57.97], [10.75, 58.5], [10.85, 58.75], [10.75, 59.0], [10.97, 59.53]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 6.847044331729364}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 4.749578985579149}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [9.97014862718413, 10.039571110458837, 10.79129877937811, 9.866160324422879]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [11.815087166449757, 12.1521239290592, 11.593266662234782, 10.652712063079264]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [4.238149482425837, 4.502526980495849, 5.402881003930632, 4.830882336910241]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [5.173580140802926, 5.275971111721788, 6.847044331729364, 5.678621648135959]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.3053448701257233, 1.3467743846964957, 1.5822871882558114, 1.3949283352350652]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.5037689684436406, 1.5537259176943743, 1.8126959711362982, 1.535873358393875]}}