{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 17:04:00.487966", "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": "2025-Mar-03_to_2025-Mar-08_0.5_36.0"}, "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": 2025030001216}, "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 03 2025"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "March 08 2025"}, "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": 76767.05910742455}, "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": ["Algeria"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Africa"]}, "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": ["Alboran 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": 36.0}, "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": 0.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "0.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": -2.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 3.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 36.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 37.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[0.25, 35.35], [0.0, 35.25], [-0.25, 35.35], [-0.5, 35.25], [-0.75, 35.35], [-1.0, 35.25], [-1.25, 35.35], [-1.5, 35.25], [-1.75, 35.35], [-2.0, 35.25], [-2.25, 35.35], [-2.5, 35.25], [-3.03, 35.47], [-3.25, 36.0], [-3.03, 36.53], [-2.5, 36.75], [-2.25, 36.65], [-2.18, 36.68], [-2.03, 37.03], [-1.5, 37.25], [-1.25, 37.15], [-1.18, 37.18], [-1.03, 37.53], [-0.68, 37.68], [-0.53, 38.03], [0.0, 38.25], [0.25, 38.15], [0.5, 38.25], [0.75, 38.15], [1.0, 38.25], [1.25, 38.15], [1.5, 38.25], [1.75, 38.15], [2.0, 38.25], [2.25, 38.15], [2.5, 38.25], [2.75, 38.15], [3.0, 38.25], [3.25, 38.15], [3.5, 38.25], [4.03, 38.03], [4.25, 37.5], [4.15, 37.25], [4.25, 37.0], [4.15, 36.75], [4.25, 36.5], [4.03, 35.97], [3.5, 35.75], [2.97, 35.97], [2.82, 36.32], [2.75, 36.35], [2.5, 36.25], [2.25, 36.35], [2.18, 36.32], [2.03, 35.97], [1.68, 35.82], [1.53, 35.47], [1.0, 35.25], [0.75, 35.35], [0.5, 35.25], [0.25, 35.35]]]]}}, "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": {"2025-03-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-2.03, 37.03], [-1.5, 37.25], [-1.25, 37.15], [-1.18, 37.18], [-1.03, 37.53], [-0.68, 37.68], [-0.53, 38.03], [0.0, 38.25], [0.25, 38.15], [0.5, 38.25], [0.75, 38.15], [1.0, 38.25], [1.25, 38.15], [1.5, 38.25], [1.75, 38.15], [2.0, 38.25], [2.25, 38.15], [2.5, 38.25], [3.03, 38.03], [3.18, 37.68], [3.25, 37.65], [3.5, 37.75], [4.03, 37.53], [4.25, 37.0], [4.15, 36.75], [4.25, 36.5], [4.03, 35.97], [3.5, 35.75], [2.97, 35.97], [2.82, 36.32], [2.75, 36.35], [2.5, 36.25], [2.25, 36.35], [2.18, 36.32], [2.03, 35.97], [1.68, 35.82], [1.53, 35.47], [1.0, 35.25], [0.75, 35.35], [0.5, 35.25], [0.25, 35.35], [0.0, 35.25], [-0.25, 35.35], [-0.5, 35.25], [-0.75, 35.35], [-1.0, 35.25], [-1.25, 35.35], [-1.5, 35.25], [-1.75, 35.35], [-2.0, 35.25], [-2.53, 35.47], [-2.75, 36.0], [-2.53, 36.53], [-2.18, 36.68], [-2.03, 37.03]]]]}, "2025-03-04T11:30:00.000000000": {"type": 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{"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [18.243316904703818, 17.58707453409835, 16.753980255126976, 16.86656850179037, 15.985547637939476, 18.49055887858077]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.7755272260875814, 3.002683230696479, 2.28292307462703, 2.1411407868375107, 2.86556381008171, 5.291651374363312]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [5.810816372552381, 5.366628230766935, 3.74791147079776, 3.5904069360994413, 2.86556381008171, 5.291651374363312]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.5332397649110288, 1.7340573259825982, 1.3395418384075952, 1.3741388992680552, 1.2058014768819314, 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