{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:53:36.823865", "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": "2013-Jun-21_to_2013-Jun-23_53.0_47.0"}, "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": 2013060000903}, "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 21 2013"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 23 2013"}, "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": 69893.99912845118}, "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": ["Kazakhstan"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["E.Europe", "W.C.Asia"]}, "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": 47.0}, "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": 53.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "53.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 50.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 53.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 43.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 47.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2013-06-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[50.75, 45.0], [50.85, 45.25], [50.75, 45.5], [50.97, 46.03], [51.32, 46.18], [51.35, 46.25], [51.25, 46.5], [51.47, 47.03], [51.82, 47.18], [51.97, 47.53], [52.5, 47.75], [52.75, 47.65], [53.0, 47.75], [53.53, 47.53], [53.75, 47.0], [53.65, 46.75], [53.75, 46.5], [53.65, 46.25], [53.68, 46.18], [54.03, 46.03], [54.25, 45.5], [54.15, 45.25], [54.25, 45.0], [54.15, 44.75], [54.25, 44.5], [54.15, 44.25], [54.25, 44.0], [54.03, 43.47], [53.68, 43.32], [53.53, 42.97], [53.0, 42.75], [52.75, 42.85], [52.5, 42.75], [52.25, 42.85], [52.0, 42.75], [51.47, 42.97], [51.32, 43.32], [51.25, 43.35], [51.0, 43.25], [50.47, 43.47], [50.25, 44.0], [50.47, 44.53], [50.82, 44.68], [50.85, 44.75], [50.75, 45.0]]]]}, "2013-06-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[50.75, 45.0], [50.85, 45.25], [50.75, 45.5], [50.97, 46.03], [51.32, 46.18], [51.35, 46.25], [51.25, 46.5], [51.47, 47.03], [51.82, 47.18], [51.97, 47.53], [52.5, 47.75], [52.75, 47.65], [53.0, 47.75], [53.53, 47.53], [53.75, 47.0], [53.65, 46.75], [53.75, 46.5], [53.65, 46.25], [53.68, 46.18], [54.03, 46.03], [54.25, 45.5], [54.15, 45.25], [54.25, 45.0], [54.15, 44.75], [54.25, 44.5], [54.15, 44.25], [54.25, 44.0], [54.03, 43.47], [53.68, 43.32], [53.53, 42.97], [53.0, 42.75], [52.75, 42.85], [52.5, 42.75], [52.25, 42.85], [52.0, 42.75], [51.47, 42.97], [51.32, 43.32], [51.25, 43.35], [51.0, 43.25], [50.47, 43.47], [50.25, 44.0], [50.47, 44.53], [50.82, 44.68], [50.85, 44.75], [50.75, 45.0]]]]}, "2013-06-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[50.75, 45.0], [50.85, 45.25], [50.75, 45.5], [50.97, 46.03], [51.32, 46.18], [51.35, 46.25], [51.25, 46.5], [51.47, 47.03], [51.82, 47.18], [51.97, 47.53], [52.5, 47.75], [52.75, 47.65], [53.0, 47.75], [53.53, 47.53], [53.75, 47.0], [53.65, 46.75], [53.75, 46.5], [53.65, 46.25], [53.68, 46.18], [54.03, 46.03], [54.25, 45.5], [54.15, 45.25], [54.25, 45.0], [54.15, 44.75], [54.25, 44.5], [54.15, 44.25], [54.25, 44.0], [54.03, 43.47], [53.68, 43.32], [53.53, 42.97], [53.0, 42.75], [52.75, 42.85], [52.5, 42.75], [52.25, 42.85], [52.0, 42.75], [51.47, 42.97], [51.32, 43.32], [51.25, 43.35], [51.0, 43.25], [50.47, 43.47], [50.25, 44.0], [50.47, 44.53], [50.82, 44.68], [50.85, 44.75], [50.75, 45.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -9.20937607794366}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -5.782119264223489}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [20.821726375961248, 19.3237608288033, 20.886062377828353]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [18.67293516513206, 17.171829582569387, 19.94053719860682]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-5.369775071079729, -6.805463512326384, -5.171119209264349]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-7.148100404210481, -9.20937607794366, -6.23146483862746]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.5827285287038064, -1.960271638944421, -1.4664968197708634]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.9883060483246595, -2.550500019992233, -1.7113292468990713]}}