{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:50:28.358900", "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": "2012-May-10_to_2012-May-12_7.5_45.5"}, "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": 2012050002198}, "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 10 2012"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "May 12 2012"}, "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": 54715.020977398526}, "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": []}, "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": 45.5}, "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": 7.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "7.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 5.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 10.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 43.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 46.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2012-05-10T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[5.25, 45.0], [5.47, 45.53], [5.82, 45.68], [5.97, 46.03], [6.32, 46.18], [6.47, 46.53], [7.0, 46.75], [7.25, 46.65], [7.5, 46.75], [7.75, 46.65], [8.0, 46.75], [8.25, 46.65], [8.5, 46.75], [8.75, 46.65], [9.0, 46.75], [9.53, 46.53], [9.75, 46.0], [9.53, 45.47], [9.0, 45.25], [9.25, 45.15], [9.5, 45.25], [9.75, 45.15], [10.0, 45.25], [10.53, 45.03], [10.75, 44.5], [10.53, 43.97], [10.0, 43.75], [9.75, 43.85], [9.5, 43.75], [9.25, 43.85], [9.0, 43.75], [8.75, 43.85], [8.5, 43.75], [8.25, 43.85], [8.18, 43.82], [8.03, 43.47], [7.5, 43.25], [7.25, 43.35], [7.0, 43.25], [6.75, 43.35], [6.5, 43.25], [6.25, 43.35], [6.0, 43.25], [5.75, 43.35], [5.5, 43.25], [4.97, 43.47], [4.75, 44.0], [4.97, 44.53], [5.32, 44.68], [5.35, 44.75], [5.25, 45.0]], [[8.75, 45.35], [8.68, 45.32], [8.63, 45.2], [8.75, 45.15], [9.0, 45.25], [8.75, 45.35]]]]}, "2012-05-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[5.25, 45.0], [5.47, 45.53], [5.82, 45.68], [5.97, 46.03], [6.32, 46.18], [6.47, 46.53], [7.0, 46.75], [7.25, 46.65], [7.5, 46.75], [7.75, 46.65], [8.0, 46.75], [8.25, 46.65], [8.5, 46.75], [8.75, 46.65], [9.0, 46.75], [9.53, 46.53], [9.75, 46.0], [9.53, 45.47], [9.0, 45.25], [9.25, 45.15], [9.5, 45.25], [9.75, 45.15], [10.0, 45.25], [10.53, 45.03], [10.75, 44.5], [10.53, 43.97], [10.0, 43.75], [9.75, 43.85], [9.5, 43.75], [9.25, 43.85], [9.0, 43.75], [8.75, 43.85], [8.5, 43.75], [8.25, 43.85], [8.18, 43.82], [8.03, 43.47], [7.5, 43.25], [7.25, 43.35], [7.0, 43.25], [6.75, 43.35], [6.5, 43.25], [6.25, 43.35], [6.0, 43.25], [5.75, 43.35], [5.5, 43.25], [4.97, 43.47], [4.75, 44.0], [4.97, 44.53], [5.32, 44.68], [5.35, 44.75], [5.25, 45.0]], [[8.75, 45.35], [8.68, 45.32], [8.63, 45.2], [8.75, 45.15], [9.0, 45.25], [8.75, 45.35]]]]}, "2012-05-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[5.25, 45.0], [5.47, 45.53], [5.82, 45.68], [5.97, 46.03], [6.32, 46.18], [6.47, 46.53], [7.0, 46.75], [7.25, 46.65], [7.5, 46.75], [7.75, 46.65], [8.0, 46.75], [8.25, 46.65], [8.5, 46.75], [8.75, 46.65], [9.0, 46.75], [9.53, 46.53], [9.75, 46.0], [9.53, 45.47], [9.0, 45.25], [9.25, 45.15], [9.5, 45.25], [9.75, 45.15], [10.0, 45.25], [10.53, 45.03], [10.75, 44.5], [10.53, 43.97], [10.0, 43.75], [9.75, 43.85], [9.5, 43.75], [9.25, 43.85], [9.0, 43.75], [8.75, 43.85], [8.5, 43.75], [8.25, 43.85], [8.18, 43.82], [8.03, 43.47], [7.5, 43.25], [7.25, 43.35], [7.0, 43.25], [6.75, 43.35], [6.5, 43.25], [6.25, 43.35], [6.0, 43.25], [5.75, 43.35], [5.5, 43.25], [4.97, 43.47], [4.75, 44.0], [4.97, 44.53], [5.32, 44.68], [5.35, 44.75], [5.25, 45.0]], [[8.75, 45.35], [8.68, 45.32], [8.63, 45.2], [8.75, 45.15], [9.0, 45.25], [8.75, 45.35]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 9.231427266545268}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 5.192365519460502}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [13.805799225508053, 16.138155515615267, 15.05044246609151]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [18.85032495602826, 21.38861336726046, 21.44973726704353]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [4.032137159928211, 6.337399280425907, 5.207560118027389]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [6.099601065752097, 9.231427266545268, 6.7643152252613845]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.5321706962439514, 2.4641793084936383, 2.090254604871752]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.0063831608560765, 3.068805778764503, 2.907136458958067]}}