{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:13:05.235949", "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": "2018-Jun-18_to_2018-Jun-22_9.5_43.5"}, "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": 2018060002529}, "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": "June 18 2018"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 22 2018"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 5}, "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": 53921.20160622336}, "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": ["Italy"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Mediterranean"]}, "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": ["Ligurian Sea", "Mediterranean Sea - Western Basin", "Tyrrhenian Sea"]}, "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": 43.5}, "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": 9.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "9.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 6.25}, "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": 42.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 44.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2018-06-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[7.0, 44.25], [7.25, 44.15], [7.32, 44.18], [7.47, 44.53], [8.0, 44.75], [8.25, 44.65], [8.5, 44.75], [8.75, 44.65], [9.0, 44.75], [9.25, 44.65], [9.5, 44.75], [10.03, 44.53], [10.18, 44.18], [10.53, 44.03], [10.75, 43.5], [10.54, 43.0], [10.75, 42.5], [10.53, 41.97], [10.0, 41.75], [9.47, 41.97], [9.25, 42.5], [9.38, 42.8], [9.25, 42.85], [9.0, 42.75], [8.75, 42.85], [8.68, 42.82], [8.53, 42.47], [8.0, 42.25], [7.75, 42.35], [7.5, 42.25], [7.25, 42.35], [7.0, 42.25], [6.75, 42.35], [6.5, 42.25], [5.97, 42.47], [5.75, 43.0], [5.97, 43.53], [6.32, 43.68], [6.47, 44.03], [7.0, 44.25]]]]}, "2018-06-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[5.75, 43.0], [5.97, 43.53], [6.32, 43.68], [6.47, 44.03], [7.0, 44.25], [7.25, 44.15], [7.32, 44.18], [7.47, 44.53], [7.82, 44.68], [7.97, 45.03], [8.5, 45.25], [8.75, 45.15], [9.0, 45.25], [9.53, 45.03], [9.68, 44.68], [10.03, 44.53], [10.18, 44.18], [10.53, 44.03], [10.75, 43.5], [10.65, 43.25], [10.75, 43.0], [10.65, 42.75], [10.75, 42.5], [10.53, 41.97], [10.0, 41.75], [9.47, 41.97], [9.32, 42.32], [9.25, 42.35], [9.0, 42.25], [8.75, 42.35], [8.5, 42.25], [8.25, 42.35], [8.18, 42.32], [8.03, 41.97], [7.5, 41.75], [7.25, 41.85], [7.0, 41.75], [6.47, 41.97], [6.32, 42.32], [5.97, 42.47], [5.75, 43.0]]]]}, "2018-06-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[5.75, 43.0], [5.97, 43.53], [6.32, 43.68], [6.47, 44.03], [7.0, 44.25], [7.25, 44.15], [7.32, 44.18], [7.47, 44.53], [7.82, 44.68], [7.97, 45.03], [8.5, 45.25], [8.75, 45.15], [9.0, 45.25], [9.53, 45.03], [9.68, 44.68], [10.03, 44.53], [10.18, 44.18], [10.53, 44.03], [10.75, 43.5], [10.65, 43.25], [10.75, 43.0], [10.65, 42.75], [10.75, 42.5], [10.53, 41.97], [10.0, 41.75], [9.47, 41.97], [9.32, 42.32], [9.25, 42.35], [9.0, 42.25], [8.75, 42.35], [8.5, 42.25], [8.25, 42.35], [8.18, 42.32], [8.03, 41.97], [7.5, 41.75], [7.25, 41.85], [7.0, 41.75], [6.47, 41.97], [6.32, 42.32], [5.97, 42.47], [5.75, 43.0]]]]}, "2018-06-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[5.75, 43.0], [5.97, 43.53], [6.32, 43.68], [6.47, 44.03], [7.0, 44.25], [7.25, 44.15], [7.32, 44.18], [7.47, 44.53], [7.82, 44.68], [7.97, 45.03], [8.5, 45.25], [8.75, 45.15], [9.0, 45.25], [9.53, 45.03], [9.68, 44.68], [10.03, 44.53], [10.18, 44.18], [10.53, 44.03], [10.75, 43.5], [10.65, 43.25], [10.75, 43.0], [10.53, 42.47], [10.0, 42.25], [9.75, 42.35], [9.5, 42.25], [9.25, 42.35], [9.0, 42.25], [8.75, 42.35], [8.5, 42.25], [8.25, 42.35], [8.18, 42.32], [8.03, 41.97], [7.5, 41.75], [7.25, 41.85], [7.0, 41.75], [6.47, 41.97], [6.32, 42.32], [5.97, 42.47], [5.75, 43.0]]]]}, "2018-06-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[5.75, 43.0], [5.97, 43.53], [6.5, 43.75], [6.75, 43.65], [7.0, 43.75], [7.53, 43.53], [7.75, 43.0], [7.53, 42.47], [7.0, 42.25], [6.75, 42.35], [6.5, 42.25], [5.97, 42.47], [5.75, 43.0]]], [[[7.97, 43.97], [7.75, 44.5], [7.97, 45.03], [8.5, 45.25], [9.03, 45.03], [9.25, 44.5], [9.13, 44.2], [9.25, 44.15], [9.5, 44.25], [10.03, 44.03], [10.25, 43.5], [10.15, 43.25], [10.25, 43.0], [10.03, 42.47], [9.5, 42.25], [9.25, 42.35], [9.0, 42.25], [8.47, 42.47], [8.25, 43.0], [8.35, 43.25], [8.25, 43.5], [8.38, 43.8], [7.97, 43.97]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 4.05743045293417}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 3.1266529007809143}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [23.779516314562784, 24.423649252778375, 24.824242991677522, 24.308544378163447, 24.248552334848057]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [24.75633726000416, 25.669759491361333, 25.84763645220454, 25.704613760715688, 25.481947060633104]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.65183948319347, 3.296301360158092, 3.555934706904388, 2.957095297199989, 2.715583356744454]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [3.113408021074008, 3.795674054739436, 4.05743045293417, 3.480832289536181, 3.212878574253466]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.5347905255449323, 1.9072198367373134, 2.041250323298915, 1.6619575418066914, 1.4876315307163104]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.8353210763385805, 2.2104681272272626, 2.4310923909550395, 2.040037879948087, 1.587735971614392]}}