{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:20:17.253195", "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": "2019-Aug-10_to_2019-Aug-12_42.0_60.0"}, "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": 2019080000359}, "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": "August 10 2019"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 12 2019"}, "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": 62003.77131916823}, "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": ["Russian Federation"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["E.Europe", "West&Central-Europe"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Asia"]}, "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": []}, "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": 60.0}, "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": 42.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "42.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 37.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 43.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 55.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 60.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2019-08-10T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[37.25, 58.5], [37.47, 59.03], [38.0, 59.25], [38.25, 59.15], 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59.03], [38.0, 59.25], [38.25, 59.15], [38.5, 59.25], [39.03, 59.03], [39.18, 58.68], [39.25, 58.65], [39.32, 58.68], [39.35, 58.75], [39.25, 59.0], [39.47, 59.53], [40.0, 59.75], [40.25, 59.65], [40.32, 59.68], [40.47, 60.03], [40.82, 60.18], [40.97, 60.53], [41.5, 60.75], [41.75, 60.65], [42.0, 60.75], [42.25, 60.65], [42.5, 60.75], [42.75, 60.65], [43.0, 60.75], [43.53, 60.53], [43.75, 60.0], [43.53, 59.47], [43.18, 59.32], [43.03, 58.97], [42.5, 58.75], [42.25, 58.85], [42.18, 58.82], [42.03, 58.47], [41.68, 58.32], [41.65, 58.25], [41.75, 58.0], [41.65, 57.75], [41.75, 57.5], [41.65, 57.25], [41.75, 57.0], [41.65, 56.75], [41.75, 56.5], [41.53, 55.97], [41.18, 55.82], [41.03, 55.47], [40.5, 55.25], [39.97, 55.47], [39.82, 55.82], [39.75, 55.85], [39.5, 55.75], [38.97, 55.97], [38.82, 56.32], [38.47, 56.47], [38.25, 57.0], [38.35, 57.25], [38.32, 57.32], [37.97, 57.47], [37.82, 57.82], [37.47, 57.97], [37.25, 58.5]]]]}, "2019-08-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[37.25, 58.5], [37.47, 59.03], [38.0, 59.25], [38.25, 59.15], [38.5, 59.25], [39.03, 59.03], [39.18, 58.68], [39.25, 58.65], [39.32, 58.68], [39.35, 58.75], [39.25, 59.0], [39.47, 59.53], [40.0, 59.75], [40.25, 59.65], [40.32, 59.68], [40.47, 60.03], [40.82, 60.18], [40.97, 60.53], [41.5, 60.75], [41.75, 60.65], [42.0, 60.75], [42.25, 60.65], [42.5, 60.75], [42.75, 60.65], [43.0, 60.75], [43.53, 60.53], [43.75, 60.0], [43.53, 59.47], [43.18, 59.32], [43.03, 58.97], [42.5, 58.75], [42.25, 58.85], [42.18, 58.82], [42.03, 58.47], [41.68, 58.32], [41.65, 58.25], [41.75, 58.0], [41.65, 57.75], [41.75, 57.5], [41.65, 57.25], [41.75, 57.0], [41.65, 56.75], [41.75, 56.5], [41.53, 55.97], [41.18, 55.82], [41.03, 55.47], [40.5, 55.25], [39.97, 55.47], [39.82, 55.82], [39.75, 55.85], [39.5, 55.75], [38.97, 55.97], [38.82, 56.32], [38.47, 56.47], [38.25, 57.0], [38.35, 57.25], [38.32, 57.32], [37.97, 57.47], [37.82, 57.82], [37.47, 57.97], [37.25, 58.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -6.634622582927932}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -5.3381226922573575}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [12.038642190888368, 10.972711707892643, 10.81718091017359]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [10.480472126676318, 8.73841078317895, 8.39658394039742]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-4.791948321977462, -5.638843560115464, -5.583576194679149]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-5.159890529567349, -6.497085861154346, -6.634622582927932]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.4052457131999394, -1.6800986534273774, -1.6946416752979094]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.5289120014595567, -1.9069609319380132, -2.0225172904086937]}}