{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:07:18.694134", "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-Feb-12_to_2017-Feb-17_5.0_44.0"}, "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": 2017020001649}, "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": "February 12 2017"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "February 17 2017"}, "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": 446461.72503722896}, "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", "Spain"]}, "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": ["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": 44.0}, "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": 5.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "5.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": -1.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 10.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 38.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 48.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2017-02-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[0.25, 45.5], [0.47, 46.03], [1.0, 46.25], [1.25, 46.15], [1.5, 46.25], [1.75, 46.15], [2.0, 46.25], [2.25, 46.15], [2.5, 46.25], [3.0, 46.04], [3.5, 46.25], [3.75, 46.15], [4.0, 46.25], [4.25, 46.15], [4.5, 46.25], [5.0, 46.04], [5.5, 46.25], [5.75, 46.15], [6.0, 46.25], [6.53, 46.03], [6.75, 45.5], [6.65, 45.25], [6.75, 45.0], [6.65, 44.75], [6.68, 44.68], [7.03, 44.53], [7.18, 44.18], [7.53, 44.03], [7.75, 43.5], [7.57, 43.07], [8.0, 43.25], [8.25, 43.15], [8.5, 43.25], [8.75, 43.15], [9.0, 43.25], [9.53, 43.03], [9.68, 42.68], [9.75, 42.65], [10.0, 42.75], [10.53, 42.53], [10.68, 42.18], [11.03, 42.03], [11.25, 41.5], [11.15, 41.25], [11.25, 41.0], [11.15, 40.75], [11.25, 40.5], [11.03, 39.97], [10.68, 39.82], [10.65, 39.75], [10.68, 39.68], [11.03, 39.53], [11.25, 39.0], [11.03, 38.47], [10.5, 38.25], [10.25, 38.35], [10.0, 38.25], [9.75, 38.35], [9.5, 38.25], [9.25, 38.35], [9.0, 38.25], [8.75, 38.35], [8.5, 38.25], [7.97, 38.47], [7.82, 38.82], [7.75, 38.85], [7.68, 38.82], [7.53, 38.47], [7.0, 38.25], [6.47, 38.47], [6.32, 38.82], [5.97, 38.97], [5.75, 39.5], [5.97, 40.03], [6.32, 40.18], [6.35, 40.25], [6.32, 40.32], [6.25, 40.35], [6.0, 40.25], [5.47, 40.47], [5.32, 40.82], [5.25, 40.85], [5.0, 40.75], [4.47, 40.97], [4.32, 41.32], [4.25, 41.35], [4.0, 41.25], [3.75, 41.35], [3.5, 41.25], [3.25, 41.35], [3.0, 41.25], [2.75, 41.35], [2.68, 41.32], [2.53, 40.97], [2.0, 40.75], [1.47, 40.97], [1.25, 41.5], [1.35, 41.75], [1.25, 42.0], [1.46, 42.5], [1.32, 42.82], [1.25, 42.85], [1.0, 42.75], [0.47, 42.97], [0.25, 43.5], [0.35, 43.75], [0.32, 43.82], [-0.03, 43.97], [-0.25, 44.5], [-0.03, 45.03], [0.32, 45.18], [0.35, 45.25], [0.25, 45.5]], [[7.43, 42.93], [7.18, 42.82], [7.12, 42.7], [7.25, 42.65], [7.32, 42.68], [7.43, 42.93]], [[5.32, 42.82], [5.25, 42.85], [5.18, 42.82], [5.12, 42.7], [5.25, 42.65], [5.38, 42.7], [5.32, 42.82]]]]}, "2017-02-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-2.04, 48.0], [-2.25, 48.5], [-2.03, 49.03], [-1.5, 49.25], [-1.25, 49.15], [-1.0, 49.25], [-0.75, 49.15], [-0.5, 49.25], [0.03, 49.03], [0.18, 48.68], [0.25, 48.65], [0.5, 48.75], [1.03, 48.53], [1.18, 48.18], [1.25, 48.15], [1.5, 48.25], [1.75, 48.15], [2.0, 48.25], [2.25, 48.15], [2.5, 48.25], [3.03, 48.03], [3.18, 47.68], [3.25, 47.65], [3.5, 47.75], [4.03, 47.53], [4.25, 47.0], [4.12, 46.7], [4.53, 46.53], [4.68, 46.18], [5.0, 46.04], [5.5, 46.25], [5.75, 46.15], [6.0, 46.25], [6.53, 46.03], [6.75, 45.5], [6.65, 45.25], [6.75, 45.0], [6.65, 44.75], [6.68, 44.68], [7.03, 44.53], [7.18, 44.18], [7.53, 44.03], [7.75, 43.5], [7.57, 43.07], [8.0, 43.25], [8.25, 43.15], [8.5, 43.25], [8.75, 43.15], [9.0, 43.25], [9.53, 43.03], [9.68, 42.68], [9.75, 42.65], [10.0, 42.75], [10.53, 42.53], [10.68, 42.18], [11.03, 42.03], [11.25, 41.5], [11.15, 41.25], [11.25, 41.0], [11.15, 40.75], [11.25, 40.5], [11.03, 39.97], [10.68, 39.82], [10.65, 39.75], [10.68, 39.68], [11.03, 39.53], [11.25, 39.0], [11.03, 38.47], [10.5, 38.25], [10.25, 38.35], [10.0, 38.25], [9.75, 38.35], [9.5, 38.25], [9.25, 38.35], [9.0, 38.25], [8.75, 38.35], [8.5, 38.25], [7.97, 38.47], [7.82, 38.82], [7.75, 38.85], [7.68, 38.82], [7.53, 38.47], [7.0, 38.25], [6.47, 38.47], [6.32, 38.82], [5.97, 38.97], [5.75, 39.5], [5.97, 40.03], [6.32, 40.18], [6.35, 40.25], [6.32, 40.32], [6.25, 40.35], [6.0, 40.25], [5.47, 40.47], [5.32, 40.82], [5.25, 40.85], [5.0, 40.75], [4.47, 40.97], [4.32, 41.32], [4.25, 41.35], [4.0, 41.25], [3.75, 41.35], [3.5, 41.25], [3.25, 41.35], [3.0, 41.25], [2.75, 41.35], [2.68, 41.32], [2.53, 40.97], [2.0, 40.75], [1.47, 40.97], [1.25, 41.5], [1.35, 41.75], [1.25, 42.0], [1.46, 42.5], [1.32, 42.82], [1.25, 42.85], [1.0, 42.75], [0.47, 42.97], [0.32, 43.32], [0.25, 43.35], [0.0, 43.25], [-0.53, 43.47], [-0.68, 43.82], [-1.03, 43.97], [-1.25, 44.5], [-1.15, 44.75], [-1.25, 45.0], [-1.15, 45.25], [-1.18, 45.32], [-1.53, 45.47], [-1.75, 46.0], [-1.65, 46.25], [-1.68, 46.32], [-2.03, 46.47], [-2.25, 47.0], [-2.15, 47.25], [-2.25, 47.5], [-2.04, 48.0]], [[7.43, 42.93], [7.18, 42.82], [7.12, 42.7], [7.25, 42.65], [7.32, 42.68], [7.43, 42.93]]]]}, "2017-02-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-2.04, 48.0], [-2.25, 48.5], [-2.03, 49.03], [-1.5, 49.25], [-1.25, 49.15], [-1.0, 49.25], [-0.75, 49.15], [-0.5, 49.25], [0.03, 49.03], [0.18, 48.68], [0.25, 48.65], [0.5, 48.75], [1.03, 48.53], [1.18, 48.18], [1.25, 48.15], [1.5, 48.25], [1.75, 48.15], [2.0, 48.25], [2.25, 48.15], [2.5, 48.25], [3.0, 48.04], [3.5, 48.25], [3.75, 48.15], [4.0, 48.25], [4.53, 48.03], [4.75, 47.5], [4.65, 47.25], [4.75, 47.0], [4.54, 46.5], [4.68, 46.18], [5.0, 46.04], [5.5, 46.25], [5.75, 46.15], [6.0, 46.25], [6.53, 46.03], [6.75, 45.5], [6.65, 45.25], [6.75, 45.0], [6.65, 44.75], [6.68, 44.68], [7.03, 44.53], [7.18, 44.18], [7.53, 44.03], [7.75, 43.5], [7.57, 43.07], [8.0, 43.25], [8.25, 43.15], [8.5, 43.25], [8.75, 43.15], [9.0, 43.25], [9.53, 43.03], [9.68, 42.68], [9.75, 42.65], [10.0, 42.75], [10.53, 42.53], [10.68, 42.18], [11.03, 42.03], [11.25, 41.5], [11.15, 41.25], [11.25, 41.0], [11.15, 40.75], [11.25, 40.5], [11.03, 39.97], [10.68, 39.82], [10.65, 39.75], [10.68, 39.68], [11.03, 39.53], [11.25, 39.0], [11.03, 38.47], [10.5, 38.25], [10.25, 38.35], [10.0, 38.25], [9.75, 38.35], [9.5, 38.25], [9.25, 38.35], [9.0, 38.25], [8.75, 38.35], [8.5, 38.25], [7.97, 38.47], [7.82, 38.82], [7.75, 38.85], [7.68, 38.82], [7.53, 38.47], [7.0, 38.25], [6.47, 38.47], [6.32, 38.82], [5.97, 38.97], [5.75, 39.5], [5.97, 40.03], [6.32, 40.18], [6.35, 40.25], [6.32, 40.32], [6.25, 40.35], [6.0, 40.25], [5.47, 40.47], [5.32, 40.82], [5.25, 40.85], [5.0, 40.75], [4.47, 40.97], [4.32, 41.32], [4.25, 41.35], [4.0, 41.25], [3.75, 41.35], [3.5, 41.25], [3.25, 41.35], [3.0, 41.25], [2.75, 41.35], [2.68, 41.32], [2.53, 40.97], [2.0, 40.75], [1.47, 40.97], [1.25, 41.5], [1.35, 41.75], [1.25, 42.0], [1.46, 42.5], [1.32, 42.82], [1.25, 42.85], [1.0, 42.75], [0.47, 42.97], [0.32, 43.32], [0.25, 43.35], [0.0, 43.25], [-0.53, 43.47], [-0.68, 43.82], [-1.03, 43.97], [-1.25, 44.5], [-1.15, 44.75], [-1.25, 45.0], [-1.15, 45.25], [-1.18, 45.32], [-1.53, 45.47], [-1.75, 46.0], [-1.65, 46.25], [-1.68, 46.32], [-2.03, 46.47], [-2.25, 47.0], [-2.15, 47.25], [-2.25, 47.5], [-2.04, 48.0]], [[7.43, 42.93], [7.18, 42.82], [7.12, 42.7], [7.25, 42.65], [7.32, 42.68], [7.43, 42.93]]]]}, "2017-02-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-2.04, 48.0], [-2.25, 48.5], [-2.03, 49.03], [-1.5, 49.25], [-1.25, 49.15], [-1.0, 49.25], [-0.75, 49.15], [-0.5, 49.25], [0.03, 49.03], [0.18, 48.68], [0.25, 48.65], [0.5, 48.75], [1.03, 48.53], [1.18, 48.18], [1.25, 48.15], [1.5, 48.25], [1.75, 48.15], [2.0, 48.25], [2.25, 48.15], [2.5, 48.25], [3.0, 48.04], [3.5, 48.25], [3.75, 48.15], [4.0, 48.25], [4.53, 48.03], [4.75, 47.5], [4.65, 47.25], [4.75, 47.0], [4.54, 46.5], [4.75, 46.0], [4.65, 45.75], [4.68, 45.68], [4.75, 45.65], [4.82, 45.68], [4.97, 46.03], [5.5, 46.25], [5.75, 46.15], [6.0, 46.25], [6.53, 46.03], [6.75, 45.5], [6.54, 45.0], [6.75, 44.5], [6.65, 44.25], [6.68, 44.18], [6.75, 44.15], [7.0, 44.25], [7.53, 44.03], [7.75, 43.5], [7.57, 43.07], [8.0, 43.25], [8.53, 43.03], [8.68, 42.68], [8.75, 42.65], [9.0, 42.75], [9.53, 42.53], [9.75, 42.0], [9.65, 41.75], [9.75, 41.5], [9.54, 41.0], [9.75, 40.5], [9.65, 40.25], [9.75, 40.0], [9.53, 39.47], [9.0, 39.25], [8.75, 39.35], [8.68, 39.32], [8.53, 38.97], [8.0, 38.75], [7.47, 38.97], [7.32, 39.32], [6.97, 39.47], [6.82, 39.82], [6.47, 39.97], [6.25, 40.5], [6.35, 40.75], [6.32, 40.82], [5.97, 40.97], [5.82, 41.32], [5.75, 41.35], [5.5, 41.25], [4.97, 41.47], [4.75, 42.0], [4.53, 41.47], [4.0, 41.25], [3.75, 41.35], [3.5, 41.25], [3.25, 41.35], [3.0, 41.25], [2.47, 41.47], [2.25, 42.0], [2.35, 42.25], [2.32, 42.32], [2.25, 42.35], [2.0, 42.25], [1.47, 42.47], [1.32, 42.82], [1.25, 42.85], [1.0, 42.75], [0.47, 42.97], [0.32, 43.32], [0.25, 43.35], [0.0, 43.25], [-0.53, 43.47], [-0.68, 43.82], [-1.03, 43.97], [-1.25, 44.5], [-1.15, 44.75], [-1.25, 45.0], [-1.15, 45.25], [-1.18, 45.32], [-1.53, 45.47], [-1.75, 46.0], [-1.65, 46.25], [-1.68, 46.32], [-2.03, 46.47], [-2.25, 47.0], [-2.15, 47.25], [-2.25, 47.5], [-2.04, 48.0]], [[4.88, 42.3], [4.75, 42.35], [4.68, 42.32], [4.65, 42.25], [4.75, 42.0], [4.88, 42.3]], [[8.32, 40.68], [8.38, 40.8], [8.25, 40.85], [8.18, 40.82], [8.15, 40.75], [8.18, 40.68], [8.25, 40.65], [8.32, 40.68]], [[7.43, 42.93], [7.18, 42.82], [7.12, 42.7], [7.25, 42.65], [7.32, 42.68], [7.43, 42.93]]]]}, "2017-02-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-1.15, 46.25], [-1.25, 46.5], [-1.03, 47.03], [-0.5, 47.25], [-0.25, 47.15], [-0.18, 47.18], [-0.03, 47.53], [0.5, 47.75], [0.75, 47.65], [1.0, 47.75], [1.25, 47.65], [1.5, 47.75], [1.75, 47.65], [2.0, 47.75], [2.25, 47.65], [2.5, 47.75], [2.8, 47.63], [2.97, 48.03], [3.5, 48.25], [3.75, 48.15], [4.0, 48.25], [4.53, 48.03], [4.75, 47.5], [4.65, 47.25], [4.75, 47.0], [4.53, 46.47], [4.0, 46.25], [3.75, 46.35], [3.5, 46.25], [3.2, 46.38], [3.03, 45.97], [2.5, 45.75], [2.25, 45.85], [2.0, 45.75], [1.75, 45.85], [1.68, 45.82], [1.65, 45.75], [1.68, 45.68], [2.03, 45.53], [2.18, 45.18], [2.25, 45.15], [2.5, 45.25], [2.75, 45.15], [3.0, 45.25], [3.53, 45.03], [3.68, 44.68], [3.75, 44.65], [4.0, 44.75], [4.25, 44.65], [4.5, 44.75], [4.75, 44.65], [4.88, 44.7], [4.75, 45.0], [4.85, 45.25], [4.75, 45.5], [4.97, 46.03], [5.5, 46.25], [5.75, 46.15], [6.0, 46.25], [6.53, 46.03], [6.75, 45.5], [6.54, 45.0], [6.75, 44.5], [6.53, 43.97], [6.0, 43.75], [5.7, 43.88], [5.53, 43.47], [5.18, 43.32], [5.15, 43.25], [5.25, 43.0], [5.03, 42.47], [4.5, 42.25], [4.25, 42.35], [4.0, 42.25], [3.57, 42.43], [3.75, 42.0], [3.53, 41.47], [3.0, 41.25], [2.47, 41.47], [2.25, 42.0], [2.47, 42.53], [3.0, 42.75], [3.43, 42.57], [3.25, 43.0], [3.35, 43.25], [3.32, 43.32], [3.25, 43.35], [3.18, 43.32], [3.03, 42.97], [2.5, 42.75], [2.25, 42.85], [2.0, 42.75], [1.75, 42.85], [1.5, 42.75], [1.25, 42.85], [1.0, 42.75], [0.47, 42.97], [0.25, 43.5], [0.35, 43.75], [0.32, 43.82], [-0.03, 43.97], [-0.25, 44.5], [-0.15, 44.75], [-0.2, 44.88], [-0.5, 44.75], [-1.03, 44.97], [-1.25, 45.5], [-1.15, 45.75], [-1.25, 46.0], [-1.15, 46.25]]]]}, "2017-02-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[3.97, 43.47], [3.75, 44.0], [3.97, 44.53], [4.5, 44.75], [4.75, 44.65], [4.88, 44.7], [4.75, 45.0], [4.97, 45.53], [5.5, 45.75], [6.03, 45.53], [6.25, 45.0], [6.03, 44.47], [5.62, 44.3], [5.75, 44.0], [5.53, 43.47], [5.0, 43.25], [4.75, 43.35], [4.5, 43.25], [3.97, 43.47]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 8.308355753794444}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 4.6011374487415955}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [11.91140517644402, 12.336082550926733, 11.687378252161011, 11.109745365867866, 9.855677991200764, 9.216155775325774]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [14.839632347979773, 15.514465992710711, 15.119521693416743, 14.090403813538103, 12.770631613397711, 11.1491658512968]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [3.840571287452184, 5.189640402275727, 4.538504698468348, 4.6984156453354755, 4.327470204401297, 3.977182012868146]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [6.8614824238246115, 8.308355753794444, 7.745694726683212, 6.881118587478284, 5.596969601256205, 4.137750811158753]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.3573089971954435, 1.610383450206827, 1.44390245159247, 1.4582945647190932, 1.3371187775419169, 1.3682476765361027]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.1083049306662387, 2.5176257078833126, 2.382633265921596, 1.9127133925790274, 1.7489333177388637, 1.5103311203633323]}}