{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:55:18.542518", "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": "2023-Sep-03_to_2023-Sep-05_3.0_38.5"}, "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": 2023090000895}, "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": "September 03 2023"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "September 05 2023"}, "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": 93338.0840577191}, "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": ["Spain"]}, "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": ["Balearic Sea", "Mediterranean 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": 38.5}, "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": 3.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "3.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 0.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 5.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 38.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 40.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-0.15, 39.25], [-0.25, 39.5], [-0.03, 40.03], [0.5, 40.25], [0.75, 40.15], [1.0, 40.25], [1.25, 40.15], [1.32, 40.18], [1.47, 40.53], [2.0, 40.75], [2.25, 40.65], [2.32, 40.68], [2.47, 41.03], [3.0, 41.25], [3.25, 41.15], [3.5, 41.25], [3.75, 41.15], [4.0, 41.25], [4.25, 41.15], [4.5, 41.25], [4.75, 41.15], [5.0, 41.25], [5.53, 41.03], [5.75, 40.5], [5.65, 40.25], [5.75, 40.0], [5.53, 39.47], [5.18, 39.32], [5.15, 39.25], [5.25, 39.0], [5.15, 38.75], [5.25, 38.5], [5.03, 37.97], [4.5, 37.75], [4.25, 37.85], [4.0, 37.75], [3.75, 37.85], [3.5, 37.75], [3.25, 37.85], [3.0, 37.75], [2.75, 37.85], [2.68, 37.82], [2.53, 37.47], [2.0, 37.25], [1.75, 37.35], [1.5, 37.25], [0.97, 37.47], [0.82, 37.82], [0.75, 37.85], [0.68, 37.82], [0.53, 37.47], [0.0, 37.25], [-0.53, 37.47], [-0.75, 38.0], [-0.53, 38.53], [-0.18, 38.68], [-0.15, 38.75], [-0.25, 39.0], [-0.15, 39.25]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Mediterranean"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2023-09-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-0.15, 38.75], [-0.25, 39.0], [-0.15, 39.25], [-0.25, 39.5], [-0.03, 40.03], [0.5, 40.25], [0.75, 40.15], [1.0, 40.25], [1.25, 40.15], [1.32, 40.18], [1.47, 40.53], [2.0, 40.75], [2.25, 40.65], [2.32, 40.68], [2.47, 41.03], [3.0, 41.25], [3.25, 41.15], [3.5, 41.25], [3.75, 41.15], [4.0, 41.25], [4.25, 41.15], [4.5, 41.25], [4.75, 41.15], [5.0, 41.25], [5.53, 41.03], [5.75, 40.5], [5.65, 40.25], [5.75, 40.0], [5.53, 39.47], [5.18, 39.32], [5.15, 39.25], [5.25, 39.0], [5.15, 38.75], [5.25, 38.5], [5.03, 37.97], [4.5, 37.75], [4.25, 37.85], [4.0, 37.75], [3.75, 37.85], [3.5, 37.75], [3.25, 37.85], [3.0, 37.75], [2.75, 37.85], [2.68, 37.82], [2.53, 37.47], [2.0, 37.25], [1.75, 37.35], [1.5, 37.25], [0.97, 37.47], [0.82, 37.82], [0.75, 37.85], [0.68, 37.82], [0.53, 37.47], [0.0, 37.25], [-0.53, 37.47], [-0.75, 38.0], [-0.53, 38.53], [-0.18, 38.68], [-0.15, 38.75]]]]}, "2023-09-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-0.15, 38.75], [-0.25, 39.0], [-0.15, 39.25], [-0.25, 39.5], [-0.03, 40.03], [0.5, 40.25], [0.75, 40.15], [1.0, 40.25], [1.25, 40.15], [1.32, 40.18], [1.47, 40.53], [2.0, 40.75], [2.25, 40.65], [2.32, 40.68], [2.47, 41.03], [3.0, 41.25], [3.25, 41.15], [3.5, 41.25], [3.75, 41.15], [4.0, 41.25], [4.25, 41.15], [4.5, 41.25], [4.75, 41.15], [5.0, 41.25], [5.53, 41.03], [5.75, 40.5], [5.65, 40.25], [5.75, 40.0], [5.53, 39.47], [5.18, 39.32], [5.15, 39.25], [5.25, 39.0], [5.15, 38.75], [5.25, 38.5], [5.03, 37.97], [4.5, 37.75], [4.25, 37.85], [4.0, 37.75], [3.75, 37.85], [3.5, 37.75], [3.25, 37.85], [3.0, 37.75], [2.75, 37.85], [2.68, 37.82], [2.53, 37.47], [2.0, 37.25], [1.75, 37.35], [1.5, 37.25], [0.97, 37.47], [0.82, 37.82], [0.75, 37.85], [0.68, 37.82], [0.53, 37.47], [0.0, 37.25], [-0.53, 37.47], [-0.75, 38.0], [-0.53, 38.53], [-0.18, 38.68], [-0.15, 38.75]]]]}, "2023-09-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-0.15, 38.75], [-0.25, 39.0], [-0.15, 39.25], [-0.25, 39.5], [-0.03, 40.03], [0.5, 40.25], [0.75, 40.15], [1.0, 40.25], [1.25, 40.15], [1.32, 40.18], [1.47, 40.53], [2.0, 40.75], [2.25, 40.65], [2.32, 40.68], [2.47, 41.03], [3.0, 41.25], [3.25, 41.15], [3.5, 41.25], [3.75, 41.15], [4.0, 41.25], [4.25, 41.15], [4.5, 41.25], [4.75, 41.15], [5.0, 41.25], [5.53, 41.03], [5.75, 40.5], [5.65, 40.25], [5.75, 40.0], [5.53, 39.47], [5.18, 39.32], [5.15, 39.25], [5.25, 39.0], [5.15, 38.75], [5.25, 38.5], [5.03, 37.97], [4.5, 37.75], [4.25, 37.85], [4.0, 37.75], [3.75, 37.85], [3.5, 37.75], [3.25, 37.85], [3.0, 37.75], [2.75, 37.85], [2.68, 37.82], [2.53, 37.47], [2.0, 37.25], [1.75, 37.35], [1.5, 37.25], [0.97, 37.47], [0.82, 37.82], [0.75, 37.85], [0.68, 37.82], [0.53, 37.47], [0.0, 37.25], [-0.53, 37.47], [-0.75, 38.0], [-0.53, 38.53], [-0.18, 38.68], [-0.15, 38.75]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 2.340192419470327}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.8431689010041536}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [26.433004428960658, 26.4849326453284, 25.98617284633997]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [27.295941960460198, 26.99821499197168, 26.49277726394996]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.9232705910326564, 2.030302615558692, 1.5759334964211125]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [2.340192419470327, 2.327433934705141, 1.9992373417573504]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.7235902088074404, 1.8436919625190065, 1.4629177844924897]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.5844478178126873, 2.252787581126948, 1.6694191404878997]}}