{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:52:52.681829", "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": "2013-Mar-05_to_2013-Mar-10_8.5_39.5"}, "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": 2013030001399}, "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 05 2013"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "March 10 2013"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 6}, "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": 69077.35357319954}, "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": ["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": 39.5}, "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": 8.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "8.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 7.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 11.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 38.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 41.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2013-03-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[7.85, 40.25], [7.75, 40.5], [7.97, 41.03], [8.5, 41.25], [9.03, 41.03], [9.18, 40.68], [9.53, 40.53], [9.75, 40.0], [9.65, 39.75], [9.75, 39.5], [9.53, 38.97], [9.0, 38.75], [8.75, 38.85], [8.5, 38.75], [7.97, 38.97], [7.75, 39.5], [7.85, 39.75], [7.75, 40.0], [7.85, 40.25]]]]}, "2013-03-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[7.85, 39.75], [7.75, 40.0], [7.85, 40.25], [7.75, 40.5], [7.97, 41.03], [8.5, 41.25], [8.75, 41.15], [8.82, 41.18], [8.97, 41.53], [9.5, 41.75], [10.03, 41.53], [10.25, 41.0], [10.15, 40.75], [10.25, 40.5], [10.15, 40.25], [10.25, 40.0], [10.15, 39.75], [10.25, 39.5], [10.15, 39.25], [10.25, 39.0], [10.03, 38.47], [9.5, 38.25], [9.25, 38.35], [9.0, 38.25], [8.75, 38.35], [8.5, 38.25], [7.97, 38.47], [7.75, 39.0], [7.85, 39.25], [7.75, 39.5], [7.85, 39.75]]]]}, "2013-03-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[7.47, 39.53], [7.82, 39.68], [7.85, 39.75], [7.75, 40.0], [7.85, 40.25], [7.75, 40.5], [7.97, 41.03], [8.5, 41.25], [8.75, 41.15], [8.82, 41.18], [8.97, 41.53], [9.5, 41.75], [9.75, 41.65], [10.0, 41.75], [10.53, 41.53], [10.75, 41.0], [10.65, 40.75], [10.68, 40.68], [11.03, 40.53], [11.18, 40.18], [11.53, 40.03], [11.75, 39.5], [11.53, 38.97], [11.18, 38.82], [11.03, 38.47], [10.68, 38.32], [10.53, 37.97], [10.0, 37.75], [9.75, 37.85], [9.5, 37.75], [9.25, 37.85], [9.0, 37.75], [8.75, 37.85], [8.5, 37.75], [8.25, 37.85], [8.0, 37.75], [7.47, 37.97], [7.25, 38.5], [7.35, 38.75], [7.25, 39.0], [7.47, 39.53]]]]}, "2013-03-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[7.47, 39.53], [7.82, 39.68], [7.85, 39.75], [7.75, 40.0], [7.97, 40.53], [8.32, 40.68], [8.47, 41.03], [8.82, 41.18], [8.97, 41.53], [9.5, 41.75], [9.75, 41.65], [10.0, 41.75], [10.53, 41.53], [10.68, 41.18], [11.03, 41.03], [11.25, 40.5], [11.15, 40.25], [11.18, 40.18], [11.53, 40.03], [11.75, 39.5], [11.53, 38.97], [11.18, 38.82], [11.03, 38.47], [10.68, 38.32], [10.53, 37.97], [10.0, 37.75], [9.75, 37.85], [9.5, 37.75], [9.25, 37.85], [9.0, 37.75], [8.75, 37.85], [8.5, 37.75], [8.25, 37.85], [8.0, 37.75], [7.47, 37.97], [7.25, 38.5], [7.35, 38.75], [7.25, 39.0], [7.47, 39.53]]]]}, "2013-03-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[7.47, 39.53], [7.82, 39.68], [7.97, 40.03], [8.5, 40.25], [8.8, 40.13], [8.85, 40.25], [8.75, 40.5], [8.85, 40.75], [8.75, 41.0], [8.97, 41.53], [9.5, 41.75], [9.75, 41.65], [10.0, 41.75], [10.53, 41.53], [10.68, 41.18], [11.03, 41.03], [11.25, 40.5], [11.15, 40.25], [11.18, 40.18], [11.53, 40.03], [11.75, 39.5], [11.53, 38.97], [11.18, 38.82], [11.03, 38.47], [10.68, 38.32], [10.53, 37.97], [10.0, 37.75], [9.75, 37.85], [9.5, 37.75], [9.25, 37.85], [9.0, 37.75], [8.75, 37.85], [8.5, 37.75], [8.25, 37.85], [8.0, 37.75], [7.47, 37.97], [7.25, 38.5], [7.35, 38.75], [7.25, 39.0], [7.47, 39.53]]]]}, "2013-03-10T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[9.47, 41.03], [10.0, 41.25], [10.25, 41.15], [10.5, 41.25], [11.03, 41.03], [11.25, 40.5], [11.03, 39.97], [10.68, 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