{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:59:16.414448", "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": "2024-Jun-18_to_2024-Jun-20_354.0_38.0"}, "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": 2024060000546}, "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 2024"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 20 2024"}, "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": "Cold spell"}, "area": {"name": "Area", "description": "The area (in square meters) encompassing all grid points under the influence of an event during its lifetime.", "value": 124544.61368354358}, "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": ["Portugal", "Spain"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Europe", "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": ["Atlantic Ocean"]}, "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": 38.0}, "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": 354.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "354.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 352.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 355.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 36.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 42.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-8.53, 39.03], [-8.12, 39.2], [-8.25, 39.5], [-8.15, 39.75], [-8.25, 40.0], [-8.15, 40.25], [-8.25, 40.5], [-8.03, 41.03], [-7.68, 41.18], [-7.65, 41.25], [-7.75, 41.5], [-7.65, 41.75], [-7.75, 42.0], [-7.53, 42.53], [-7.0, 42.75], [-6.75, 42.65], [-6.5, 42.75], [-6.25, 42.65], [-6.0, 42.75], [-5.47, 42.53], [-5.32, 42.18], [-4.97, 42.03], [-4.75, 41.5], [-4.97, 40.97], [-5.32, 40.82], [-5.35, 40.75], [-5.32, 40.68], [-5.25, 40.65], [-5.0, 40.75], [-4.75, 40.65], [-4.5, 40.75], [-3.97, 40.53], [-3.75, 40.0], [-3.97, 39.47], [-4.5, 39.25], [-4.75, 39.35], [-4.82, 39.32], [-4.97, 38.97], [-5.32, 38.82], [-5.35, 38.75], [-5.32, 38.68], [-5.25, 38.65], [-5.0, 38.75], [-4.47, 38.53], [-4.25, 38.0], [-4.35, 37.75], [-4.25, 37.5], [-4.47, 36.97], [-4.82, 36.82], [-4.85, 36.75], [-4.75, 36.5], [-4.97, 35.97], [-5.5, 35.75], [-5.75, 35.85], [-6.0, 35.75], [-6.53, 35.97], [-6.68, 36.32], [-7.0, 36.46], [-7.5, 36.25], [-7.75, 36.35], [-8.0, 36.25], [-8.53, 36.47], [-8.75, 37.0], [-8.53, 37.53], [-8.12, 37.7], [-8.18, 37.82], [-8.53, 37.97], [-8.75, 38.5], [-8.53, 39.03]]]]}}, "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": {"2024-06-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-8.529999999999973, 37.97], [-8.75, 38.5], [-8.529999999999973, 39.03], [-8.120000000000005, 39.2], [-8.25, 39.5], [-8.149999999999977, 39.75], [-8.25, 40.0], [-8.149999999999977, 40.25], [-8.25, 40.5], [-8.029999999999973, 41.03], [-7.680000000000007, 41.18], [-7.649999999999977, 41.25], [-7.75, 41.5], [-7.649999999999977, 41.75], [-7.75, 42.0], [-7.529999999999973, 42.53], [-7.0, 42.75], [-6.75, 42.65], [-6.5, 42.75], [-6.25, 42.65], [-6.0, 42.75], [-5.470000000000027, 42.53], [-5.319999999999993, 42.18], [-4.970000000000027, 42.03], [-4.75, 41.5], [-4.970000000000027, 40.97], [-5.319999999999993, 40.82], [-5.350000000000023, 40.75], [-5.319999999999993, 40.68], [-5.25, 40.65], [-5.0, 40.75], [-4.75, 40.65], [-4.5, 40.75], [-3.9700000000000273, 40.53], [-3.75, 40.0], [-3.9700000000000273, 39.47], [-4.5, 39.25], [-4.75, 39.35], [-4.819999999999993, 39.32], [-4.970000000000027, 38.97], [-5.319999999999993, 38.82], [-5.350000000000023, 38.75], [-5.319999999999993, 38.68], [-5.25, 38.65], [-5.0, 38.75], [-4.470000000000027, 38.53], [-4.25, 38.0], [-4.350000000000023, 37.75], [-4.25, 37.5], [-4.470000000000027, 36.97], [-4.819999999999993, 36.82], [-4.850000000000023, 36.75], [-4.75, 36.5], [-4.970000000000027, 35.97], [-5.5, 35.75], [-5.75, 35.85], [-6.0, 35.75], [-6.529999999999973, 35.97], [-6.680000000000007, 36.32], [-7.0, 36.46], [-7.5, 36.25], [-7.75, 36.35], [-8.0, 36.25], [-8.529999999999973, 36.47], [-8.75, 37.0], [-8.529999999999973, 37.53], [-8.120000000000005, 37.7], [-8.180000000000007, 37.82], [-8.529999999999973, 37.97]]]]}, "2024-06-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-8.529999999999973, 37.97], [-8.75, 38.5], [-8.529999999999973, 39.03], [-8.120000000000005, 39.2], [-8.25, 39.5], [-8.149999999999977, 39.75], [-8.25, 40.0], [-8.149999999999977, 40.25], [-8.25, 40.5], [-8.029999999999973, 41.03], [-7.680000000000007, 41.18], [-7.649999999999977, 41.25], [-7.75, 41.5], [-7.649999999999977, 41.75], [-7.75, 42.0], [-7.529999999999973, 42.53], [-7.0, 42.75], [-6.75, 42.65], [-6.5, 42.75], [-6.25, 42.65], [-6.0, 42.75], [-5.470000000000027, 42.53], [-5.319999999999993, 42.18], [-4.970000000000027, 42.03], [-4.75, 41.5], [-4.970000000000027, 40.97], [-5.319999999999993, 40.82], [-5.350000000000023, 40.75], [-5.319999999999993, 40.68], [-5.25, 40.65], [-5.0, 40.75], [-4.75, 40.65], [-4.5, 40.75], [-3.9700000000000273, 40.53], [-3.75, 40.0], [-3.9700000000000273, 39.47], [-4.5, 39.25], [-4.75, 39.35], [-4.819999999999993, 39.32], [-4.970000000000027, 38.97], [-5.319999999999993, 38.82], [-5.350000000000023, 38.75], [-5.319999999999993, 38.68], [-5.25, 38.65], [-5.0, 38.75], [-4.470000000000027, 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"anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-6.176847794638434, -8.904249493649786, -7.943892507441149]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.4470474347865312, -2.094223673391233, -1.907355011724415]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.8082662402216836, -2.706856156542996, -2.505950014507359]}}