{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:51:55.193004", "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": "2024-May-08_to_2024-May-11_351.0_43.0"}, "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": 2024050001193}, "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 08 2024"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "May 11 2024"}, "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": 87865.80803051784}, "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": ["Portugal", "Spain"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Mediterranean", "N.Atlantic-Ocean"]}, "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": ["North Atlantic Ocean"]}, "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": 43.0}, "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": 351.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "351.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 348.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 352.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 39.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 43.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2024-05-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-11.75, 40.5], [-11.53, 41.03], [-11.18, 41.18], [-11.15, 41.25], [-11.18, 41.32], [-11.53, 41.47], [-11.75, 42.0], [-11.53, 42.53], [-11.0, 42.75], [-10.75, 42.65], [-10.68, 42.68], [-10.53, 43.03], [-10.18, 43.18], [-10.03, 43.53], [-9.5, 43.75], [-9.25, 43.65], [-9.18, 43.68], [-9.03, 44.03], [-8.5, 44.25], [-8.25, 44.15], [-8.0, 44.25], [-7.47, 44.03], [-7.25, 43.5], [-7.35, 43.25], [-7.25, 43.0], [-7.35, 42.75], [-7.25, 42.5], [-7.47, 41.97], [-7.82, 41.82], [-7.96, 41.5], [-7.75, 41.0], [-7.97, 40.47], [-8.32, 40.32], [-8.35, 40.25], [-8.25, 40.0], [-8.47, 39.47], [-8.82, 39.32], [-8.97, 38.97], [-9.5, 38.75], [-9.75, 38.85], [-10.0, 38.75], [-10.53, 38.97], [-10.68, 39.32], [-11.03, 39.47], [-11.18, 39.82], [-11.53, 39.97], [-11.75, 40.5]]]]}, "2024-05-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-11.75, 40.5], [-11.53, 41.03], [-11.18, 41.18], [-11.15, 41.25], [-11.18, 41.32], [-11.53, 41.47], [-11.75, 42.0], [-11.53, 42.53], [-11.0, 42.75], [-10.75, 42.65], [-10.68, 42.68], [-10.53, 43.03], [-10.18, 43.18], [-10.03, 43.53], [-9.5, 43.75], [-9.25, 43.65], [-9.18, 43.68], [-9.03, 44.03], [-8.5, 44.25], [-8.25, 44.15], [-8.0, 44.25], [-7.75, 44.15], [-7.5, 44.25], [-6.97, 44.03], [-6.75, 43.5], [-6.97, 42.97], [-7.32, 42.82], [-7.35, 42.75], [-7.25, 42.5], [-7.47, 41.97], [-7.82, 41.82], [-7.96, 41.5], [-7.75, 41.0], [-7.97, 40.47], [-8.32, 40.32], [-8.35, 40.25], [-8.25, 40.0], [-8.47, 39.47], [-8.82, 39.32], [-8.97, 38.97], [-9.5, 38.75], [-9.75, 38.85], [-10.0, 38.75], [-10.53, 38.97], [-10.68, 39.32], [-11.03, 39.47], [-11.18, 39.82], [-11.53, 39.97], [-11.75, 40.5]]]]}, "2024-05-10T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-11.75, 40.5], [-11.53, 41.03], [-11.18, 41.18], [-11.15, 41.25], [-11.18, 41.32], [-11.53, 41.47], [-11.75, 42.0], [-11.53, 42.53], [-11.0, 42.75], [-10.75, 42.65], [-10.68, 42.68], [-10.53, 43.03], [-10.18, 43.18], [-10.03, 43.53], [-9.5, 43.75], [-9.25, 43.65], [-9.18, 43.68], [-9.03, 44.03], [-8.5, 44.25], [-8.25, 44.15], [-8.0, 44.25], [-7.75, 44.15], [-7.5, 44.25], [-6.97, 44.03], [-6.75, 43.5], [-6.97, 42.97], [-7.32, 42.82], [-7.35, 42.75], [-7.25, 42.5], [-7.47, 41.97], [-7.82, 41.82], [-7.96, 41.5], [-7.75, 41.0], [-7.97, 40.47], [-8.32, 40.32], [-8.35, 40.25], [-8.25, 40.0], [-8.47, 39.47], [-8.82, 39.32], [-8.97, 38.97], [-9.5, 38.75], [-9.75, 38.85], [-10.0, 38.75], [-10.53, 38.97], [-10.68, 39.32], [-11.03, 39.47], [-11.18, 39.82], [-11.53, 39.97], [-11.75, 40.5]]]]}, "2024-05-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-7.5, 44.25], [-6.97, 44.03], [-6.75, 43.5], [-6.97, 42.97], [-7.5, 42.75], [-8.03, 42.97], [-8.25, 43.5], [-8.03, 44.03], [-7.5, 44.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 5.408541509110648}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 2.8698359487282126}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [17.116534501504475, 17.680762407151008, 17.120453957931318, 15.83023264187608]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [20.101308054587378, 20.51249353983559, 19.223983429193993, 15.83023264187608]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.7220653489817512, 3.2469577984796048, 2.628231686075648, 3.1876798295918434]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [5.036265515407763, 5.408541509110648, 5.15121166632639, 3.1876798295918434]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.943018167160558, 2.2970690100489164, 1.769573803996363, 1.4134652975029407]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.581296394552248, 2.7399872608004077, 2.5299799248727832, 1.4134652975029407]}}