{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:08:06.297809", "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-15_to_2017-May-18_7.0_46.0"}, "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": 2017050002035}, "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 15 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": 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": 59363.25134535892}, "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": ["France", "Italy", "Switzerland"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Mediterranean", "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": ["Mediterranean Sea - Western Basin"]}, "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": 46.0}, "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": 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": 4.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 8.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 42.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 46.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2017-05-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[4.5, 44.75], [5.03, 44.53], [5.18, 44.18], [5.25, 44.15], [5.5, 44.25], [6.03, 44.03], [6.25, 43.5], [6.15, 43.25], [6.25, 43.0], [6.03, 42.47], [5.68, 42.32], [5.53, 41.97], [5.0, 41.75], [4.47, 41.97], [4.25, 42.5], [4.38, 42.8], [3.97, 42.97], [3.75, 43.5], [3.85, 43.75], [3.75, 44.0], [3.97, 44.53], [4.5, 44.75]]], [[[6.97, 44.97], [6.75, 45.5], [6.97, 46.03], [7.5, 46.25], [8.03, 46.03], [8.25, 45.5], [8.03, 44.97], [7.5, 44.75], [6.97, 44.97]]]]}, "2017-05-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[3.97, 44.53], [4.32, 44.68], [4.46, 45.0], [4.25, 45.5], [4.47, 46.03], [4.82, 46.18], [4.97, 46.53], [5.5, 46.75], [6.0, 46.54], [6.5, 46.75], [6.75, 46.65], [6.82, 46.68], [6.97, 47.03], [7.5, 47.25], [7.75, 47.15], [8.0, 47.25], [8.53, 47.03], [8.75, 46.5], [8.53, 45.97], [8.18, 45.82], [8.15, 45.75], [8.25, 45.5], [8.03, 44.97], [7.5, 44.75], [7.0, 44.96], [6.68, 44.82], [6.65, 44.75], [6.75, 44.5], [6.54, 44.0], [6.68, 43.68], [7.03, 43.53], [7.25, 43.0], [7.03, 42.47], [6.5, 42.25], [6.25, 42.35], [6.0, 42.25], [5.75, 42.35], [5.68, 42.32], [5.53, 41.97], [5.0, 41.75], [4.47, 41.97], [4.25, 42.5], [4.38, 42.8], [3.97, 42.97], [3.75, 43.5], [3.85, 43.75], [3.75, 44.0], [3.97, 44.53]]]]}, "2017-05-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[3.97, 44.53], [4.32, 44.68], [4.46, 45.0], [4.25, 45.5], [4.47, 46.03], [4.82, 46.18], [4.97, 46.53], [5.5, 46.75], [6.0, 46.54], [6.5, 46.75], [6.75, 46.65], [6.82, 46.68], [6.97, 47.03], [7.5, 47.25], [7.75, 47.15], [8.0, 47.25], [8.53, 47.03], [8.75, 46.5], [8.53, 45.97], [8.18, 45.82], [8.15, 45.75], [8.25, 45.5], [8.03, 44.97], [7.5, 44.75], [7.0, 44.96], [6.68, 44.82], [6.65, 44.75], [6.75, 44.5], [6.54, 44.0], [6.68, 43.68], [7.03, 43.53], [7.25, 43.0], [7.03, 42.47], [6.5, 42.25], [6.25, 42.35], [6.0, 42.25], [5.75, 42.35], [5.68, 42.32], [5.53, 41.97], [5.0, 41.75], [4.47, 41.97], [4.25, 42.5], [4.38, 42.8], [3.97, 42.97], [3.75, 43.5], [3.85, 43.75], [3.75, 44.0], [3.97, 44.53]]]]}, "2017-05-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[4.46, 45.0], [4.25, 45.5], [4.47, 46.03], [4.82, 46.18], [4.97, 46.53], [5.5, 46.75], [6.0, 46.54], [6.5, 46.75], [6.75, 46.65], [6.82, 46.68], [6.97, 47.03], [7.5, 47.25], [7.75, 47.15], [8.0, 47.25], [8.53, 47.03], [8.75, 46.5], [8.53, 45.97], [8.18, 45.82], [8.03, 45.47], [7.5, 45.25], [7.25, 45.35], [7.18, 45.32], [7.03, 44.97], [6.68, 44.82], [6.65, 44.75], [6.75, 44.5], [6.54, 44.0], [6.68, 43.68], [7.03, 43.53], [7.25, 43.0], [7.03, 42.47], [6.5, 42.25], [6.25, 42.35], [6.0, 42.25], [5.75, 42.35], [5.5, 42.25], [4.97, 42.47], [4.75, 43.0], [4.88, 43.3], [4.47, 43.47], [4.25, 44.0], [4.35, 44.25], [4.25, 44.5], [4.46, 45.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 6.914168094812965}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 4.018923482809133}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [18.70556282366971, 16.25642139339169, 17.07263493281181, 15.734430400703559]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [22.002625857262103, 21.427149000830468, 22.10134170938187, 20.679508448397257]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.9864970126017574, 3.786050186707552, 4.539033402396138, 3.9937614093493825]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [3.8441124453760267, 5.310803731283045, 6.914168094812965, 6.192598404622913]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.5577491327464574, 1.479958795677179, 1.8090788310616606, 1.512995226717728]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.9445136981394369, 1.830371561682373, 2.24738560511378, 1.8969995311033725]}}