{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:44:58.479738", "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": "2010-Jun-26_to_2010-Jun-29_344.0_33.0"}, "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": 2010060000979}, "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 26 2010"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 29 2010"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 4}, "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": 113714.1142464189}, "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": ["Madeira"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.Atlantic-Ocean"]}, "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": ["North 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": 33.0}, "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": 344.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "344.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 341.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 347.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 30.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 36.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2010-06-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-17.15, 34.25], [-17.25, 34.5], [-17.15, 34.75], [-17.25, 35.0], [-17.15, 35.25], [-17.25, 35.5], [-17.15, 35.75], [-17.25, 36.0], [-17.03, 36.53], [-16.5, 36.75], [-16.25, 36.65], [-16.0, 36.75], [-15.47, 36.53], [-15.25, 36.0], [-15.35, 35.75], [-15.25, 35.5], [-15.35, 35.25], [-15.25, 35.0], [-15.35, 34.75], [-15.25, 34.5], [-15.35, 34.25], [-15.25, 34.0], [-15.46, 33.5], [-15.25, 33.0], [-15.47, 32.47], [-16.0, 32.25], [-16.53, 32.47], [-16.68, 32.82], [-17.03, 32.97], [-17.25, 33.5], [-17.15, 33.75], [-17.25, 34.0], [-17.15, 34.25]]]]}, "2010-06-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-18.75, 32.5], [-18.53, 33.03], [-18.18, 33.18], [-18.03, 33.53], [-17.68, 33.68], [-17.53, 34.03], [-17.18, 34.18], [-17.15, 34.25], [-17.25, 34.5], [-17.15, 34.75], [-17.25, 35.0], [-17.15, 35.25], [-17.25, 35.5], [-17.15, 35.75], [-17.25, 36.0], [-17.03, 36.53], [-16.5, 36.75], [-16.25, 36.65], [-16.0, 36.75], [-15.47, 36.53], [-15.25, 36.0], [-15.35, 35.75], [-15.25, 35.5], [-15.35, 35.25], [-15.3, 35.12], [-15.0, 35.25], [-14.47, 35.03], [-14.25, 34.5], [-14.35, 34.25], [-14.32, 34.18], [-13.97, 34.03], [-13.82, 33.68], [-13.75, 33.65], [-13.68, 33.68], [-13.53, 34.03], [-13.0, 34.25], [-12.47, 34.03], [-12.25, 33.5], [-12.47, 32.97], [-12.82, 32.82], [-12.97, 32.47], [-13.5, 32.25], [-13.75, 32.35], [-14.0, 32.25], [-14.25, 32.35], [-14.5, 32.25], [-14.75, 32.35], [-14.82, 32.32], [-14.97, 31.97], [-15.5, 31.75], [-15.75, 31.85], [-15.82, 31.82], [-15.85, 31.75], [-15.75, 31.5], [-15.97, 30.97], [-16.5, 30.75], [-16.75, 30.85], [-16.82, 30.82], [-16.97, 30.47], [-17.5, 30.25], [-18.03, 30.47], [-18.18, 30.82], [-18.25, 30.85], [-18.5, 30.75], [-19.03, 30.97], [-19.25, 31.5], [-19.03, 32.03], [-18.68, 32.18], [-18.65, 32.25], [-18.75, 32.5]]]]}, "2010-06-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-18.75, 32.5], [-18.53, 33.03], [-18.18, 33.18], [-18.03, 33.53], [-17.68, 33.68], [-17.53, 34.03], [-17.18, 34.18], [-17.15, 34.25], [-17.25, 34.5], [-17.15, 34.75], [-17.25, 35.0], 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[-18.65, 32.25], [-18.75, 32.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -1.8452858160260917}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -1.3371409442694897}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [18.62418922691637, 18.733153223063766, 18.93654876082479, 19.329675731597433]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [18.19611638490852, 17.702543613790738, 18.13093999722446, 18.3715722118298]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-1.1973699872891548, -1.5163623375417437, -1.3608058084856405, -1.1300054058201812]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-1.2966830269105003, -1.8452858160260917, -1.6596201303282783, -1.2605067829157974]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.2535465332080304, -1.6946865881874473, -1.5357156122038185, -1.3039967484955692]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.320301421835014, -2.0852560818827937, -1.8846549108062773, -1.4728882262350482]}}