{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:08:06.523406", "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": "2017-May-16_to_2017-May-18_7.0_51.5"}, "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": 2017050002127}, "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": "May 16 2017"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "May 18 2017"}, "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": 130962.87209656033}, "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": ["Belgium", "France", "Germany", "Luxembourg"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.Europe", "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": 51.5}, "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": 4.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 11.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 47.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 53.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2017-05-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[4.47, 49.53], [4.82, 49.68], [4.97, 50.03], [5.38, 50.2], [5.25, 50.5], [5.47, 51.03], [6.0, 51.25], [6.25, 51.15], [6.32, 51.18], [6.35, 51.25], [6.25, 51.5], [6.35, 51.75], [6.25, 52.0], [6.35, 52.25], [6.25, 52.5], [6.47, 53.03], [6.82, 53.18], [6.97, 53.53], [7.5, 53.75], [7.75, 53.65], [7.82, 53.68], [7.97, 54.03], [8.5, 54.25], [9.03, 54.03], [9.18, 53.68], [9.53, 53.53], [9.68, 53.18], [10.03, 53.03], [10.18, 52.68], [10.25, 52.65], [10.5, 52.75], [11.03, 52.53], [11.18, 52.18], [11.53, 52.03], [11.75, 51.5], [11.53, 50.97], [11.18, 50.82], [11.03, 50.47], [10.5, 50.25], [10.25, 50.35], [10.0, 50.25], [9.75, 50.35], [9.68, 50.32], [9.53, 49.97], [9.18, 49.82], [9.03, 49.47], [8.68, 49.32], [8.53, 48.97], [8.18, 48.82], [8.03, 48.47], [7.68, 48.32], [7.53, 47.97], [7.18, 47.82], [7.03, 47.47], [6.5, 47.25], [6.25, 47.35], [6.0, 47.25], [5.47, 47.47], [5.32, 47.82], [5.25, 47.85], [5.0, 47.75], [4.47, 47.97], [4.25, 48.5], [4.35, 48.75], [4.25, 49.0], [4.47, 49.53]]]]}, "2017-05-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[4.47, 49.53], [4.82, 49.68], [4.97, 50.03], [5.38, 50.2], [5.25, 50.5], [5.47, 51.03], [6.0, 51.25], [6.25, 51.15], [6.32, 51.18], [6.35, 51.25], [6.25, 51.5], [6.35, 51.75], [6.25, 52.0], [6.35, 52.25], [6.25, 52.5], [6.47, 53.03], [6.82, 53.18], [6.97, 53.53], [7.5, 53.75], [7.75, 53.65], [7.82, 53.68], [7.97, 54.03], [8.5, 54.25], [9.03, 54.03], [9.18, 53.68], [9.53, 53.53], [9.68, 53.18], [10.03, 53.03], [10.18, 52.68], [10.25, 52.65], [10.5, 52.75], [11.03, 52.53], [11.18, 52.18], [11.53, 52.03], [11.75, 51.5], [11.53, 50.97], [11.18, 50.82], [11.03, 50.47], [10.5, 50.25], [10.25, 50.35], [10.0, 50.25], [9.75, 50.35], [9.68, 50.32], [9.53, 49.97], [9.18, 49.82], [9.03, 49.47], [8.68, 49.32], [8.53, 48.97], [8.18, 48.82], [8.03, 48.47], [7.68, 48.32], [7.53, 47.97], [7.18, 47.82], [7.03, 47.47], [6.5, 47.25], [6.25, 47.35], [6.0, 47.25], [5.47, 47.47], [5.32, 47.82], [5.25, 47.85], [5.0, 47.75], [4.47, 47.97], [4.25, 48.5], [4.35, 48.75], [4.25, 49.0], [4.47, 49.53]]]]}, "2017-05-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[4.47, 49.53], [4.82, 49.68], [4.97, 50.03], [5.38, 50.2], [5.25, 50.5], [5.47, 51.03], [6.0, 51.25], [6.25, 51.15], [6.32, 51.18], [6.35, 51.25], [6.25, 51.5], [6.35, 51.75], [6.25, 52.0], [6.35, 52.25], [6.25, 52.5], [6.47, 53.03], [6.82, 53.18], [6.97, 53.53], [7.5, 53.75], [7.75, 53.65], [7.82, 53.68], [7.97, 54.03], [8.5, 54.25], [9.03, 54.03], [9.18, 53.68], [9.53, 53.53], [9.68, 53.18], [10.03, 53.03], [10.18, 52.68], [10.25, 52.65], [10.5, 52.75], [11.03, 52.53], [11.18, 52.18], [11.53, 52.03], [11.75, 51.5], [11.53, 50.97], [11.18, 50.82], [11.03, 50.47], [10.5, 50.25], [10.25, 50.35], [10.0, 50.25], [9.75, 50.35], [9.68, 50.32], [9.53, 49.97], [9.18, 49.82], [9.03, 49.47], [8.68, 49.32], [8.53, 48.97], [8.18, 48.82], [8.03, 48.47], [7.68, 48.32], [7.53, 47.97], [7.18, 47.82], [7.03, 47.47], [6.5, 47.25], [6.25, 47.35], [6.0, 47.25], [5.47, 47.47], [5.32, 47.82], [5.25, 47.85], [5.0, 47.75], [4.47, 47.97], [4.25, 48.5], [4.35, 48.75], [4.25, 49.0], [4.47, 49.53]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 10.083234896604836}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 6.481494396613846}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [18.180172956384013, 21.172942190879894, 18.55189777172643]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [20.956156577177467, 23.611084889702738, 20.006209463609878]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [5.5640201062576224, 8.383169573646438, 5.497293509937474]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [7.576436375047763, 10.083234896604836, 7.445757107498878]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.6367556172000066, 2.536486736501298, 1.6838265681483362]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.1444509671454894, 2.989261466802896, 2.2311600418076045]}}