{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:07:31.143596", "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-Mar-08_to_2017-Mar-11_357.5_48.5"}, "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": 2017030001391}, "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": "March 08 2017"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "March 11 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": 51280.581772925405}, "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"]}, "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": ["English Channel"]}, "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": 48.5}, "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": 357.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "357.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 356.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 360.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 46.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 49.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2017-03-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-4.03, 47.97], [-4.25, 48.5], [-4.03, 49.03], [-3.5, 49.25], 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[0.53, 48.47], [0.18, 48.32], [0.15, 48.25], [0.25, 48.0], [0.04, 47.5], [0.25, 47.0], [0.03, 46.47], [-0.32, 46.32], [-0.47, 45.97], [-1.0, 45.75], [-1.53, 45.97], [-1.75, 46.5], [-1.65, 46.75], [-1.68, 46.82], [-2.03, 46.97], [-2.18, 47.32], [-2.53, 47.47], [-2.68, 47.82], [-2.75, 47.85], [-3.0, 47.75], [-3.25, 47.85], [-3.5, 47.75], [-4.03, 47.97]]]]}, "2017-03-10T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-4.03, 47.97], [-4.25, 48.5], [-4.03, 49.03], [-3.5, 49.25], [-3.25, 49.15], [-3.0, 49.25], [-2.75, 49.15], [-2.62, 49.2], [-2.75, 49.5], [-2.53, 50.03], [-2.0, 50.25], [-1.75, 50.15], [-1.5, 50.25], [-1.25, 50.15], [-1.0, 50.25], [-0.75, 50.15], [-0.5, 50.25], [-0.25, 50.15], [0.0, 50.25], [0.53, 50.03], [0.75, 49.5], [0.65, 49.25], [0.75, 49.0], [0.53, 48.47], [0.18, 48.32], [0.15, 48.25], [0.25, 48.0], [0.04, 47.5], [0.25, 47.0], [0.03, 46.47], [-0.32, 46.32], [-0.47, 45.97], [-1.0, 45.75], [-1.53, 45.97], [-1.75, 46.5], [-1.65, 46.75], [-1.68, 46.82], 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anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 4.901224643527996}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 3.697802090441631}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [11.338198868054405, 11.80279211414097, 11.605316182424815, 11.573650114263842]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [12.406897958587876, 12.653019637116302, 12.703867564104598, 12.778331364294957]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [3.675122534608969, 3.9571020212247867, 3.631880783438555, 3.4997023212590803]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": 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